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Company Name: Ameren Corporation
CIK: 1002910
Phone: None
Fiscal Year End: None
Entity Type:
SIC: -
Category Type:
Entity Name: None
First Filing Date: 2009-08-10
Last Filing Date: 2025-05-05
SEC Filings
Start End Frame Filed ACCN Value View
2009-04-01 2009-06-30 CY2008Q2 2009-08-10 0001193125-09-170432 $ 213,600,000 View
2009-07-01 2009-09-30 CY2008Q3 2009-11-09 0001193125-09-229036 $ 218,200,000 View
2009-01-01 2009-12-31 CY2007 2010-02-26 0001193125-10-043155 $ 220,400,000 View
2010-01-01 2010-03-31 CY2009Q1 2010-05-10 0001193125-10-114175 $ 237,600,000 View
2010-04-01 2010-06-30 CY2009Q2 2010-08-09 0001193125-10-183197 $ 238,400,000 View
2010-01-01 2010-12-31 CY2008 2011-02-24 0001193125-11-044880 $ 238,800,000 View
2015-07-01 2015-09-30 CY2014Q3 2015-11-06 0001002910-15-000140 $ 242,600,000 View
2016-01-01 2016-03-31 CY2015Q1 2016-05-10 0001002910-16-000258 $ 242,600,000 View
2016-04-01 2016-06-30 CY2015Q2 2016-08-05 0001002910-16-000276 $ 242,600,000 View
2016-07-01 2016-09-30 CY2015Q3 2016-11-04 0001002910-16-000289 $ 242,600,000 View
2016-01-01 2016-12-31 CY2014 2017-02-28 0001002910-17-000054 $ 242,600,000 View
2017-01-01 2017-03-31 CY2016Q1 2017-05-05 0001002910-17-000091 $ 242,600,000 View
2017-04-01 2017-06-30 CY2016Q2 2017-08-04 0001002910-17-000103 $ 242,600,000 View
2017-07-01 2017-09-30 CY2016Q3 2017-11-03 0001002910-17-000108 $ 242,600,000 View
2017-01-01 2017-12-31 CY2015 2018-02-28 0001002910-18-000069 $ 242,600,000 View
2018-01-01 2018-03-31 CY2017Q1 2018-05-09 0001002910-18-000119 $ 242,900,000 View
2018-04-01 2018-06-30 CY2017Q2 2018-08-08 0001002910-18-000135 $ 243,700,000 View
2018-07-01 2018-09-30 CY2017Q3 2018-11-02 0001002910-18-000140 $ 244,100,000 View
2018-01-01 2018-12-31 CY2016 2019-02-26 0001002910-19-000094 $ 243,800,000 View
2019-01-01 2019-03-31 CY2018Q1 2019-05-10 0001002910-19-000139 $ 244,900,000 View
2019-04-01 2019-06-30 CY2018Q2 2019-08-02 0001002910-19-000144 $ 245,600,000 View
2019-07-01 2019-09-30 CY2018Q3 2019-11-08 0001002910-19-000148 $ 245,900,000 View
2019-01-01 2019-12-31 CY2017 2020-02-28 0001002910-20-000077 $ 245,600,000 View
2010-07-01 2010-09-30 CY2009Q3 2010-11-08 0001193125-10-252336 $ 239,300,000 View
2011-01-01 2011-03-31 CY2010Q1 2011-05-10 0001193125-11-134059 $ 240,600,000 View
2011-04-01 2011-06-30 CY2010Q2 2011-08-09 0001193125-11-216568 $ 241,200,000 View
2011-07-01 2011-09-30 CY2010Q3 2011-11-08 0001193125-11-302027 $ 241,700,000 View
2010-12-31 2011-12-31 CY2011 2012-02-28 0001193125-12-085489 $ 241,500,000 View
2012-01-01 2012-03-31 CY2011Q1 2012-05-10 0001193125-12-224293 $ 242,600,000 View
2012-04-01 2012-06-30 CY2011Q2 2012-08-08 0001193125-12-344197 $ 246,600,000 View
2012-07-01 2012-09-30 CY2011Q3 2012-11-09 0001193125-12-462627 $ 242,600,000 View
2012-01-01 2012-12-31 CY2012 2013-03-01 0001445305-13-000414 $ 242,600,000 View
2012-01-01 2012-12-31 CY2012Q4I 2013-10-17 0001002910-13-000092 $ 242,600,000 View
2013-01-01 2013-03-31 CY2012Q1 2013-05-10 0001002910-13-000080 $ 242,600,000 View
2013-04-01 2013-06-30 CY2012Q2 2013-08-09 0001002910-13-000090 $ 242,600,000 View
2013-07-01 2013-09-30 CY2012Q3 2013-11-08 0001002910-13-000095 $ 242,600,000 View
2013-01-01 2013-12-31 CY2011 2014-03-03 0001002910-14-000054 $ 242,600,000 View
2014-01-01 2014-03-31 CY2013Q1 2014-05-12 0001002910-14-000087 $ 242,600,000 View
2014-04-01 2014-06-30 CY2013Q2 2014-08-11 0001002910-14-000100 $ 242,600,000 View
2014-07-01 2014-09-30 CY2013Q3 2014-11-10 0001002910-14-000103 $ 242,600,000 View
2014-01-01 2014-12-31 CY2012 2015-03-02 0001002910-15-000075 $ 242,600,000 View
2015-01-01 2015-03-31 CY2014Q1 2015-05-11 0001002910-15-000119 $ 242,600,000 View
2015-04-01 2015-06-30 CY2014Q2 2015-08-06 0001002910-15-000128 $ 242,600,000 View
2015-01-01 2015-12-31 CY2013 2016-02-26 0001002910-16-000205 $ 242,600,000 View
2020-01-01 2020-03-31 CY2019Q1 2020-05-11 0001002910-20-000115 $ 246,400,000 View
2020-04-01 2020-06-30 CY2019Q2 2020-08-07 0001002910-20-000128 $ 246,900,000 View
2020-07-01 2020-09-30 CY2019Q3 2020-11-05 0001002910-20-000138 $ 247,100,000 View
2020-01-01 2020-12-31 CY2018 2021-02-22 0001002910-21-000065 $ 247,000,000 View
2021-01-01 2021-03-31 CY2020Q1 2021-05-10 0001002910-21-000094 $ 254,400,000 View
2021-04-01 2021-06-30 CY2020Q2 2021-08-06 0001002910-21-000103 $ 256,100,000 View
2021-07-01 2021-09-30 CY2020Q3 2021-11-04 0001002910-21-000113 $ 257,300,000 View
2021-01-01 2021-12-31 CY2020Q4I 2022-02-23 0001002910-22-000038 $ 756,000,000 View
2022-01-01 2022-03-31 CY2022Q1I 2022-05-06 0001002910-22-000061 $ 772,000,000 View
2022-01-01 2022-06-30 CY2022Q2I 2022-08-08 0001002910-22-000072 $ 22,000,000 View
2022-07-01 2022-09-30 CY2021Q3 2022-11-04 0001002910-22-000087 $ -3,000,000 View
2022-01-01 2022-12-31 CY2020 2023-02-22 0001002910-23-000053 $ 2,000,000 View
2023-01-01 2023-03-31 CY2022Q1 2023-05-05 0001002910-23-000090 $ 2,000,000 View
2023-07-01 2023-09-30 CY2022Q3 2023-11-09 0001002910-23-000112 $ 0 View
2023-04-01 2023-06-30 CY2023Q2 2023-08-03 0001002910-23-000102 $ 0 View
2023-01-01 2023-12-31 CY2021 2024-02-29 0001002910-24-000056 $ 49,000,000 View
2024-01-01 2024-03-31 CY2023Q1 2024-05-06 0001002910-24-000090 $ 18,000,000 View
2024-01-01 2024-06-30 CY2024Q2 2024-08-05 0001002910-24-000101 $ 38,000,000 View
2024-07-01 2024-09-30 CY2024Q3I 2024-11-07 0001002910-24-000111 $ 2,000,000 View
2024-01-01 2024-12-31 CY2024 2025-02-18 0001002910-25-000055 $ 5,000,000 View
2025-01-01 2025-03-31 CY2025Q1 2025-05-05 0001002910-25-000098 $ 1,000,000 View
SEC Facts By Type
Type Name Description View
us-gaap Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. View
us-gaap Additional Paid in Capital Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock. View
us-gaap Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale. View
us-gaap Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer. View
us-gaap Available-for-sale Securities, Debt Maturities, Amortized Cost Basis (Deprecated 2014-01-31) Amount of available-for-sale debt securities at cost, net of adjustments, which include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments. View
us-gaap Capital Leases, Future Minimum Payments Due in Five Years Amount of minimum lease payments for capital leases due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. View
us-gaap Cash and Cash Equivalents, at Carrying Value Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. View
us-gaap Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations For the entity and the disposal group, cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. View
us-gaap Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. View
us-gaap Credit Derivative, Maximum Exposure, Undiscounted Maximum potential amount of future undiscounted payments that could be required under the credit derivative, before reduction for potential recoveries under recourse or collateralization provisions. View
us-gaap Decommissioning Fund Investments Decommission fund to pay for the costs of decontaminating and decommissioning of facilities through collection of revenues derived from utility assessments and government appropriations. Decommission fund investment for the process whereby a power station, at the end of its economic life, is taken permanently out of service and its site made available for other purposes. In the case of a nuclear station this comprises three different states of clearance. Immediately after the final closure, radioactive material such as nuclear fuel and operational waste is removed and the buildings surrounding the reactor shield are dismantled and finally the reactor itself is dismantled. View
us-gaap Deferred Tax Assets, Net of Valuation Allowance, Current Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as current. View
us-gaap Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Asset Retirement Obligations Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from asset retirement obligations. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset. View
us-gaap Derivative Asset, Fair Value, Gross Asset Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. View
us-gaap Earnings Per Share, Basic and Diluted The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. View
us-gaap Effective Income Tax Rate Reconciliation, Tax Credit, Percent Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits. View
us-gaap Gain (Loss) on Sale of Properties The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. View
us-gaap Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity. View
us-gaap Income Taxes Paid, Net The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. View
us-gaap Interest Payable, Current Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). View
us-gaap Lessee, Operating Lease, Liability, to be Paid, after Year Five Amount of lessee's undiscounted obligation for lease payment for operating lease due after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Loans, Gross, Insurance Policy Amount before allowance of loans made to policy and contract holders using their life insurance contracts' cash value or separate accounts as collateral. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums over and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. View
us-gaap Long-term Line of Credit, Noncurrent The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. View
us-gaap Net Cash Provided by (Used in) Financing Activities Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. View
us-gaap Net Cash Provided by (Used in) Financing Activities, Continuing Operations Amount of cash inflow (outflow) of financing activities, excluding discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. View
us-gaap Operating Leases, Future Minimum Payments, Due in Three Years Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. View
us-gaap Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan. View
us-gaap Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax (Deprecated 2013-01-31) Net of tax amount of the income statement impact of the reclassification adjustment of accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges realized in net income. Also includes reclassification adjustments of an entity's share of an equity investee's deferred hedging gain (loss) realized in net income. View
us-gaap Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Tax (Deprecated 2013-01-31) Tax effect of the income statement impact of the reclassification adjustment of accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges realized in net income. Also includes reclassification adjustments of an entity's share of an equity investee's deferred hedging gain (loss) realized in net income. View
us-gaap Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax (Deprecated 2012-01-31) Net of tax effect of the reclassification adjustment for accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges included in accumulated comprehensive income that was realized in net income during the period. View
us-gaap Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Tax (Deprecated 2012-01-31) Tax effect on reclassification adjustment for accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges included in accumulated comprehensive income that was realized in net income during the period. View
us-gaap Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss). View
us-gaap Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax Amount of tax expense (benefit), before reclassification adjustments, related to increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss). View
us-gaap Payments for Repurchase of Convertible Preferred Stock The cash outflow to reacquire preferred stock originally issued and identified as a security that can be exchanged for another type of financial security. This repurchased stock is held in treasury. View
us-gaap Pension and Other Postretirement Defined Benefit Plans, Noncurrent Liabilities (Deprecated 2009-01-31) For classified balance sheets this represents the noncurrent liability for underfunded plans recognized in the balance sheet that is associated with the defined benefit pension plans and other postretirement defined benefit plans. For unclassified balance sheets, this represents the entire liability recognized in the balance sheet that is associated with the defined benefit plans. View
us-gaap Proceeds from Sale and Maturity of Other Investments The cash inflow associated with the sale and maturity (principal being due) of other investments, prepayment and call (request of early payment) of other investments not otherwise defined in the taxonomy. View
us-gaap Public Utilities, Property, Plant and Equipment, Amount of Indirect Disallowance of Costs of Recently Completed Plants The amount of indirect disallowance of costs of a recently completed plant. When it becomes probable that part of the cost of a recently completed plant will be disallowed for rate-making purposes and a reasonable estimate of the amount of the disallowance can be made, the estimated amount of the probable disallowance is deducted from the reported cost of the plant and recognized as a loss. If part of the cost is explicitly, but indirectly, disallowed (for example, by an explicit disallowance of return on investment on a portion of the plant), an equivalent amount of cost is deducted from the reported cost of the plant and recognized as a loss. View
us-gaap Redeemable Preferred Stock (Deprecated 2011-01-31) Aggregate value of all preferred stock outstanding, that embody an unconditional obligation requiring the issuer to redeem the instrument by transferring its assets at a specified or determinable date (or dates) or upon an event certain to occur, including convertible preferred, excluding additional paid in capital, at the financial statement date. View
us-gaap Regulatory Assets, Current Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are expected to be recovered through revenue sources within one year or the normal operating cycle, if longer. Such costs are capitalized if they meet both of the following criteria: a. It is probable that future revenue in an amount at least equal to the capitalized cost will result from inclusion of that cost in allowable costs for rate-making purposes. b. Based on available evidence, the future revenue will be provided to permit recovery of the previously incurred cost rather than to provide for expected levels of similar future costs. If the revenue will be provided through an automatic rate-adjustment clause, this criterion requires that the regulator's intent clearly be to permit recovery of the previously incurred cost. View
us-gaap Securities Loaned Amount, after the effects of master netting arrangements, of securities loaned to entities in exchange for collateral. Includes liabilities not subject to a master netting arrangement and not elected to be offset. View
us-gaap Segment Reporting Information, Assets (Deprecated 2011-01-31) Amount of total assets attributed to the reportable segment. View
us-gaap Segment Reporting Information, Depreciation, Depletion, and Amortization Expense (Deprecated 2011-01-31) Amount of depreciation, depletion, and amortization expense for the reportable segment. Such disclosure is presented if the amount is: (a) is included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. View
us-gaap Segment Reporting Information, Expenditures for Additions to Long-Lived Assets (Deprecated 2011-01-31) Total expenditures for additions to long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets of the reportable segment. View
us-gaap Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. View
us-gaap Taxes Payable (Deprecated 2009-01-31) Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. For classified balance sheets, used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer); for unclassified balance sheets, used to reflect the total liabilities (regardless of due date). View
us-gaap Temporary Equity, Carrying Amount (Deprecated 2012-01-31) The carrying value (book value) of an entity's issued and outstanding stock which is not included within permanent equity in Stockholders Equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer. View
us-gaap Unrecorded Unconditional Purchase Obligation, to be Paid, Year Three Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Variable Interest Entity, Carrying Amount of Assets, Unconsolidated VIE (Deprecated 2009-01-31) The carrying amount of the assets in the enterprise's statement of financial position that relate to the enterprise's variable interest in the unconsolidated variable interest entity. In general, a VIE is a corporation, partnership, trust, or any other legal structure used for business purposes that either (a) does not have equity investors with voting rights or (b) has equity investors that do not provide sufficient financial resources for the entity to support its activities. A VIE often holds financial assets, including loans or receivables, real estate or other property. A VIE may be essentially passive or it may engage in research and development or other activities on behalf of another company. View
us-gaap Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other nondeductible expenses. View
us-gaap Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Amount of lessee's undiscounted obligation for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year. View
us-gaap Deferred Tax Liabilities, Deferred Expense Amount of deferred tax liability attributable to taxable temporary differences from capitalized costs. View
us-gaap Gain (Loss) on Extinguishment of Debt Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. View
us-gaap Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax Amount, after tax and before reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. View
us-gaap Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax Amount, before reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. View
us-gaap Preferred Stock Dividends, Income Statement Impact The amount of preferred stock dividends that is an adjustment to net income apportioned to common stockholders. View
us-gaap Costs Incurred, Asset Retirement Obligation Incurred Amount of asset retirement obligations (ARO) costs incurred (whether capitalized or charged to expense) during the period. View
us-gaap Derivative, Collateral, Obligation to Return Cash Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets. View
us-gaap Derivative Credit Risk Valuation Adjustment, Derivative Liabilities Amount of credit risk valuation adjustment to derivative liabilities to properly reflect the credit quality of the entity. View
us-gaap Dividends Payable, Amount (Deprecated 2012-01-31) The aggregate amount of dividends declared, but not paid, as of the financial reporting date. View
us-gaap Dividends Payable Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. View
us-gaap Earnings Per Share, Basic The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. View
us-gaap Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority The amount of the additional liability or refund received or expected based on a final settlement with a taxing authority. View
us-gaap Income Tax Expense (Benefit) Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. View
us-gaap Proceeds from (Repayments of) Short-term Debt The net cash inflow or outflow for borrowing having initial term of repayment within one year or the normal operating cycle, if longer. View
us-gaap Quantifying Misstatement in Current Year Financial Statements, Amount Amount of each individual error being corrected in the correcting adjustment. View
us-gaap Ratio of Indebtedness to Net Capital (Deprecated 2012-01-31) Total Aggregate Indebtedness divided by Net Capital. View
us-gaap Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Amount of increase in right-of-use asset obtained in exchange for operating lease liability. View
us-gaap Sale of Stock, Price Per Share Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. View
us-gaap Public Utilities, Property, Plant and Equipment, Construction Work in Progress Period end amount of construction work in progress in public utility. View
us-gaap Proceeds from Issuance of Common Stock The cash inflow from the additional capital contribution to the entity. View
us-gaap Proceeds from Income Tax Refunds The amount of cash received during the period as refunds for the overpayment of taxes. View
us-gaap Available-for-sale Securities Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. View
us-gaap Asset Retirement Obligation, Liabilities Settled Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset. View
us-gaap Asset Retirement Obligation, Revision of Estimate Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation. View
us-gaap Asset Retirement Obligations, Noncurrent Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. View
dei Entity Common Stock, Shares Outstanding Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument. View
dei Entity Public Float The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter. View
us-gaap Accounts Payable and Accrued Liabilities (Deprecated 2009-01-31) Carrying value as of the balance sheet date of obligations incurred and payable. pertaining to goods and services received from vendors; and for costs that are statutory in nature, are incurred in connection with contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent, salaries and benefits, and utilities. For classified balance sheets, used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer); for unclassified balance sheets, used to reflect the total liabilities (regardless of due date). View
us-gaap Accounts Payable and Accrued Liabilities, Current Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits. View
us-gaap Accounts Receivable, after Allowance for Credit Loss, Current Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. View
us-gaap Accumulated Deferred Investment Tax Credit The noncurrent portion of the reserve for accumulated deferred investment tax credits as of the balance sheet date. This is the remaining investment credit, which will reduce the cost of services collected from ratepayers by a ratable portion over the investment's regulatory life. View
us-gaap Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. View
us-gaap Assets Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. View
us-gaap Assets, Current Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. View
us-gaap Assets, Fair Value Disclosure Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. View
us-gaap Disposal Group, Including Discontinued Operation, Assets, Current Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. View
us-gaap Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). View
us-gaap Debt Securities, Available-for-sale, Amortized Cost Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). View
us-gaap Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in equity securities classified as available-for-sale. View
us-gaap Additional Collateral, Aggregate Fair Value The aggregate fair value of additional assets that would be required to be posted as collateral for derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period. View
us-gaap Amortization The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives. View
us-gaap Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities, Other (Deprecated 2011-01-31) Transactions that do not result in cash inflows or outflows in the period in which they occur, but affect net income and thus are removed when calculating net cash flow from operating activities using the indirect cash flow method. This element is used when there is not a more specific and appropriate element. View
us-gaap Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration. View
us-gaap Share-based Payment Arrangement, Expense Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. View
us-gaap Share-based Payment Arrangement, Expense, after Tax Amount, after tax, of expense for award under share-based payment arrangement. View
us-gaap Accounts Receivable, Allowance for Credit Loss Amount of allowance for credit loss on accounts receivable. View
us-gaap Accounts Receivable, Allowance for Credit Loss, Current Amount of allowance for credit loss on accounts receivable, classified as current. View
us-gaap Accounts Receivable, Allowance for Credit Loss, Writeoff Amount of direct write-downs of accounts receivable charged against the allowance. View
us-gaap Allowance for Funds Used During Construction, Investing Activities Cash inflow due to change during the period in the allowance for other funds used during construction classified as an investing activity. View
us-gaap Amortization of Debt Issuance Costs and Discounts Amount of amortization expense attributable to debt discount (premium) and debt issuance costs. View
us-gaap Amortization of Intangible Assets The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. View
us-gaap Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. View
us-gaap Asset Impairment Charges Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. View
us-gaap Asset Retirement Obligation The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. View
us-gaap Asset Retirement Obligation, Accretion Expense Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability. View
us-gaap Asset Retirement Obligation, Current Current portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. View
us-gaap Asset Retirement Obligation, Liabilities Incurred Amount of asset retirement obligations incurred during the period. View
us-gaap Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale. View
us-gaap Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss (Deprecated 2018-01-31) Amount of unrealized loss on securities classified as available-for-sale that have been in a loss position for twelve months or longer. View
us-gaap Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale in a continuous loss position. View
us-gaap Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss (Deprecated 2018-01-31) Amount of unrealized loss on securities classified as available-for-sale. View
us-gaap Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities. View
us-gaap Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for less than twelve months. View
us-gaap Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss (Deprecated 2018-01-31) Amount of unrealized loss on investments in available-for-sale securities that have been in a loss position for less than twelve months. View
us-gaap Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than twelve months. View
us-gaap Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for twelve months or longer. View
us-gaap Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Debt Securities, Available-for-sale Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). View
us-gaap Available-for-sale Securities, Gross Realized Gains This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. View
us-gaap Available-for-sale Securities, Gross Realized Gains (Losses), Sale Proceeds (Deprecated 2018-01-31) The total amount of proceeds received for the sale of securities, categorized neither as held-to-maturity nor trading securities, during the reporting period. View
us-gaap Available-for-sale Securities, Gross Realized Losses This item represents the gross loss realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. View
us-gaap Available-for-sale Securities, Gross Unrealized Gain Amount of unrealized gain before deducting unrealized loss on investments in debt and equity securities classified as available-for-sale securities. View
us-gaap Available-for-sale Securities, Gross Unrealized Loss Amount of unrealized loss before deducting unrealized gain on investments in available-for-sale securities. View
us-gaap Available-for-sale Securities, Gross Unrealized Losses (Deprecated 2013-01-31) This item represents the gross unrealized losses for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities. View
us-gaap Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses (Deprecated 2012-01-31) This item represents the excess of amortized cost basis over fair value of securities that have been in a loss position for twelve months or longer for those securities which are categorized neither as held-to-maturity nor trading securities. View
us-gaap Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses (Deprecated 2013-01-31) Amount of the excess of amortized cost basis over fair value of securities that have been in a loss position for twelve months or longer for securities which are categorized neither as held-to-maturity nor trading securities. View
us-gaap Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses (Deprecated 2012-01-31) This item represents the excess of amortized cost basis over fair value of securities in a loss position and which are categorized neither as held-to-maturity nor trading securities. View
us-gaap Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses (Deprecated 2013-01-31) Amount of the excess of amortized cost basis over fair value of securities in a loss position and categorized neither as held-to-maturity nor trading securities. View
us-gaap Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses (Deprecated 2012-01-31) This item represents the excess of amortized cost basis over fair value of securities that have been in a loss position for less than twelve months for those securities which are categorized neither as held-to-maturity nor trading securities. View
us-gaap Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses (Deprecated 2013-01-31) Amount of the excess of amortized cost basis over fair value of securities that have been in a loss position for less than twelve months for securities categorized neither as held-to-maturity nor trading securities. View
us-gaap Available-for-sale Securities, Gross Unrealized Gains (Deprecated 2013-01-31) This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities. View
us-gaap Capital Expenditures Incurred but Not yet Paid Future cash outflow to pay for purchases of fixed assets that have occurred. View
us-gaap Capitalized Computer Software, Accumulated Amortization For each balance sheet presented, the amount of accumulated amortization for capitalized computer software costs. View
us-gaap Capitalized Computer Software, Amortization Amount of expense for amortization of capitalized computer software costs. View
us-gaap Capitalized Computer Software, Gross Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software. View
us-gaap Capital Leased Assets, Gross Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services. View
us-gaap Capital Lease Obligations Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date. View
us-gaap Capital Leases, Future Minimum Payments Due Amount of minimum lease payments for capital leases. View
us-gaap Capital Leases, Future Minimum Payments Due, Next Twelve Months Amount of minimum lease payments for capital leases due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. View
us-gaap Cost of Purchased Power (Deprecated 2018-01-31) Cost of electricity purchased as well as fuel used to generate electricity used in operations and sold during the reporting period. View
us-gaap Capital Leases, Future Minimum Payments Due in Four Years Amount of minimum lease payments for capital leases due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. View
us-gaap Capital Leases, Future Minimum Payments Due in Three Years Amount of minimum lease payments for capital leases due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. View
us-gaap Capital Leases, Future Minimum Payments Due in Two Years Amount of minimum lease payments for capital leases due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. View
us-gaap Capital Leases, Future Minimum Payments Due Thereafter Amount of minimum lease payments for capital leases due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. View
us-gaap Capital Leases, Future Minimum Payments, Interest Included in Payments Amount necessary to reduce net minimum lease payments to present value for capital leases. View
us-gaap Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes. View
us-gaap Cash and Cash Equivalents, Period Increase (Decrease) Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes. View
us-gaap Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. View
us-gaap Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect Amount of increase (decrease) in cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; excluding effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. View
us-gaap Cost of Goods Sold, Depreciation, Depletion and Amortization (Deprecated 2018-01-31) Aggregate depreciation, depletion and amortization expense in the current period for the cost of tangible assets, intangible assets, or depleting assets directly related to goods produced and sold during the reporting period. View
us-gaap Cost of Natural Gas Purchases (Deprecated 2018-01-31) Cost of natural gas purchased and associated transportation and storage costs during the period. View
us-gaap Cost of Purchased Oil and Gas (Deprecated 2018-01-31) Cost of oil and gas purchased during the reporting period. View
us-gaap Cash Paid for Capitalized Interest (Deprecated 2011-01-31) The amount of cash paid during the current period for interest owed on money borrowed that is not charged as an expense but rather is capitalized based on the long term nature of the use of the borrowed funds. View
us-gaap Cash Provided by (Used in) Financing Activities, Discontinued Operations Amount of cash inflow (outflow) of financing activities of discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. View
us-gaap Cash Provided by (Used in) Investing Activities, Discontinued Operations Amount of cash inflow (outflow) of investing activities of discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. View
us-gaap Cash Provided by (Used in) Operating Activities, Discontinued Operations Amount of cash inflow (outflow) of operating activities of discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. View
us-gaap Cash Surrender Value of Life Insurance Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity. View
us-gaap Collateral Already Posted, Aggregate Fair Value The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features. View
us-gaap Commitments and Contingencies Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur. View
us-gaap Common Stock, Dividends, Per Share, Cash Paid Aggregate dividends paid during the period for each share of common stock outstanding. View
us-gaap Common Stockholders' Equity (Deprecated 2013-01-31) Items including common stock value, paid in capital, retained earnings, common stock purchased for the treasury and excluding noncontrolling interests (minority interests) and preferred stockholder interests. View
us-gaap Common Stock, Par or Stated Value Per Share Face amount or stated value per share of common stock. View
us-gaap Common Stock, Shares Authorized The maximum number of common shares permitted to be issued by an entity's charter and bylaws. View
us-gaap Common Stock, Shares, Outstanding Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. View
us-gaap Common Stock, Value, Issued Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. View
us-gaap Comprehensive Income (Loss), Net of Tax, Attributable to Parent Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. View
us-gaap Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners. View
us-gaap Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners. View
us-gaap Concentration Risk, Credit Risk, Financial Instrument, Maximum Exposure Maximum amount of loss due to credit risk that, based on the gross fair value of the financial instrument, the entity would incur if parties to the financial instruments that make up the concentration failed completely to perform according to the terms of the contracts and the collateral or other security, if any, for the amount due proved to be of no value to the entity. View
us-gaap Contract with Customer, Liability, Current Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. View
us-gaap Cost, Depreciation, Amortization and Depletion Amount of expense for allocation of cost of tangible and intangible assets over their useful lives, and reduction in quantity of natural resource due to consumption directly used in production of good and rendering of service. View
us-gaap Current Federal Tax Expense (Benefit) Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations. View
us-gaap Current State and Local Tax Expense (Benefit) Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations. View
us-gaap Customer Advances for Construction For utilities only, represents the carrying amount of the liability as of the balance sheet date for payments received by a utility from its customers in advance of performing its obligations under terms of its construction agreements. View
us-gaap Customer Deposits, Current The current portion of money or property received from customers which is either to be returned upon satisfactory contract completion or applied to customer receivables in accordance with the terms of the contract or the understandings. View
us-gaap Debt and Equity Securities, Gain (Loss) Amount of unrealized and realized gain (loss) on investment in debt and equity securities. View
us-gaap Debt Conversion, Original Debt, Amount "The amount of the original debt being converted in a noncash (or part noncash) transaction. ""Part noncash"" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period." View
us-gaap Long-term Debt, Gross Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. View
us-gaap Debt Instrument, Face Amount Face (par) amount of debt instrument at time of issuance. View
us-gaap Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum (Deprecated 2016-01-31) Maximum contractual interest rate for funds borrowed, under the debt agreement. View
us-gaap Debt Instrument, Unamortized Discount (Premium), Net Amount, after accumulated amortization, of debt discount (premium). View
us-gaap Debt, Weighted Average Interest Rate Weighted average interest rate of debt outstanding. View
us-gaap Decommissioning Fund Investments, Fair Value The fair value of investments held in a trust fund to pay for the costs of decontaminating and decommissioning facilities, whether such amount is presented as a separate caption or as a parenthetical disclosure on the balance sheet. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. View
us-gaap Deferred Compensation Liability, Classified, Noncurrent Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements payable beyond one year (or the operating cycle, if longer). View
us-gaap Deferred Federal Income Tax Expense (Benefit) Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations. View
us-gaap Deferred Income Taxes and Other Assets, Current Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and other assets expected to be realized or consumed within one year or normal operating cycle, if longer. View
us-gaap Deferred Income Taxes and Other Tax Liabilities, Noncurrent Amount of deferred tax liability attributable to taxable temporary differences, after deferred tax asset, and other tax liabilities expected to be paid after one year or operating cycle, if longer. View
us-gaap Deferred Income Taxes and Tax Credits Amount of deferred income tax expense (benefit) and income tax credits. View
us-gaap Deferred Income Tax Liabilities, Net Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting. View
us-gaap Deferred Other Tax Expense (Benefit) Amount of other deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. For example, but not limited to, acquisition-date income tax benefits or expenses recognized from changes in the acquirer's valuation allowance for its previously existing deferred tax assets resulting from a business combination and adjustments to beginning-of-year balance of a valuation allowance because of a change in circumstance causing a change in judgment about the realizability of the related deferred tax asset in future periods. View
us-gaap Deferred State and Local Income Tax Expense (Benefit) Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations. View
us-gaap Deferred Tax Assets, Charitable Contribution Carryforwards Amount before allocation of valuation allowances of deferred tax asset attributable to deductible charitable contribution carryforwards. View
us-gaap Deferred Tax Assets, Net of Valuation Allowance Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. View
us-gaap Dividends Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock. View
us-gaap Deferred Tax Assets, Net of Valuation Allowance, Noncurrent Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as noncurrent. View
us-gaap Deferred Tax Assets, Other Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other. View
us-gaap Deferred Tax Assets, Regulatory Assets and Liabilities Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences derived regulatory assets and liabilities. View
us-gaap Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from compensation and benefits costs. View
us-gaap Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Impairment Losses Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from estimated impairment losses. View
us-gaap Deferred Tax Assets, Valuation Allowance Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. View
us-gaap Deferred Tax Assets, Valuation Allowance, Noncurrent Amount of valuation allowance of deferred tax asset attributable to deductible temporary differences and carryforwards, classified as noncurrent. View
us-gaap Deferred Tax Liabilities, Net Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting. View
us-gaap Deferred Tax Liabilities, Net, Current Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as current. View
us-gaap Deferred Tax Liabilities, Goodwill and Intangible Assets Amount of deferred tax liability attributable to taxable temporary differences from intangible assets including goodwill. View
us-gaap Deferred Tax Liabilities, Net, Noncurrent Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as noncurrent. View
us-gaap Deferred Tax Liabilities, Other Amount of deferred tax liability attributable to taxable temporary differences classified as other. View
us-gaap Deferred Tax Liabilities, Property, Plant and Equipment Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. View
us-gaap Deferred Tax Liabilities, Regulatory Assets and Liabilities Amount of deferred tax liability attributable to taxable temporary differences from regulatory assets and liabilities. View
us-gaap Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment Amount of (increase) decrease in benefit obligation of defined benefit plan from event reducing expected years of future service of present employees or eliminating accrual of benefits for some or all future services of present employees. View
us-gaap Defined Benefit Plan, Funded (Unfunded) Status of Plan Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status. View
us-gaap Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment Amount of gain (loss) recognized in net periodic benefit (cost) credit from event reducing expected years of future service of present employees or eliminating accrual of defined benefits for some or all future services of present employees. View
us-gaap Defined Contribution Plan, Cost Amount of cost for defined contribution plan. View
us-gaap Depreciation, Amortization and Accretion, Net The aggregate net amount of depreciation, amortization, and accretion recognized during an accounting period. As a noncash item, the net amount is added back to net income when calculating cash provided by or used in operations using the indirect method. View
us-gaap Derivative Asset Designated as Hedging Instrument, Fair Value (Deprecated 2011-01-31) Fair value of a derivative asset (or nonderivative instrument) that is designated and qualifies as a hedging instrument, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. View
us-gaap Derivative Asset Not Designated as Hedging Instrument, Fair Value (Deprecated 2011-01-31) Fair value of a derivative asset that is not designated or qualifying as a hedging instrument, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. View
us-gaap Derivative Asset, Current Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. View
us-gaap Derivative Liability, Fair Value, Gross Liability Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. View
us-gaap Derivative Instruments and Hedges, Assets Carrying amount as of the balance sheet date of the asset arising from derivative instruments and hedging activities, which are expected to be converted into cash or otherwise disposed of within a year or the normal operating cycle, if longer. View
us-gaap Derivative Liability, Current Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. View
us-gaap Derivative Liability Designated as Hedging Instrument, Fair Value (Deprecated 2011-01-31) Fair value of a derivative liability (or nonderivative instrument) that is designated and qualifies as a hedging instrument, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. View
us-gaap Derivative Liability Not Designated as Hedging Instrument, Fair Value (Deprecated 2011-01-31) Fair value of a derivative liability that is not designated or qualifying as a hedging instrument, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. View
us-gaap Derivative, Net Liability Position, Aggregate Fair Value The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument. View
us-gaap Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal. View
us-gaap Discontinued Operation, Tax Effect of Discontinued Operation Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal. View
us-gaap Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net Amount classified as accounts, notes and loans receivable attributable to disposal group held for sale or disposed of. View
us-gaap Disposal Group, Including Discontinued Operation, Accounts Payable Amount classified as accounts payable attributable to disposal group held for sale or disposed of. View
us-gaap Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents Amount classified as cash and cash equivalents attributable to disposal group held for sale or disposed of. View
us-gaap Disposal Group, Including Discontinued Operation, Deferred Tax Assets Amount classified as deferred tax assets attributable to disposal group held for sale or disposed of. View
us-gaap Disposal Group, Including Discontinued Operation, Deferred Tax Liabilities Amount classified as deferred tax liabilities attributable to disposal group held for sale or disposed of. View
us-gaap Disposal Group, Including Discontinued Operation, Interest Expense Amount of interest expense attributable to disposal group, including, but not limited to, discontinued operation. View
us-gaap Disposal Group, Including Discontinued Operation, Inventory (Deprecated 2014-01-31) For the disposal group, including a component of the entity (discontinued operation), carrying amount of inventories (net of all valuation allowances and write-downs). View
us-gaap Disposal Group, Including Discontinued Operation, Operating Expense Amount of operating expense attributable to disposal group, including, but not limited to, discontinued operation. View
us-gaap Disposal Group, Including Discontinued Operation, Operating Income (Loss) Amount of operating income (loss) attributable to disposal group, including, but not limited to, discontinued operation. View
us-gaap Disposal Group, Including Discontinued Operation, Other Assets, Current Amount classified as other assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. View
us-gaap Disposal Group, Including Discontinued Operation, Other Liabilities, Current Amount classified as other liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. View
us-gaap Disposal Group, Including Discontinued Operation, Revenue Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation. View
us-gaap Earnings Per Share, Diluted The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. View
us-gaap Effective Income Tax Rate Reconciliation, Percent Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. View
us-gaap Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Percentage of domestic federal statutory tax rate applicable to pretax income (loss). View
us-gaap Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets. View
us-gaap Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the income tax rates. View
us-gaap Effective Income Tax Rate Reconciliation, Deduction, Percent Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations attributable to deduction. Includes, but is not limited to, dividend deduction, deduction for dividend paid to employee stock ownership plan (ESOP), Medicare prescription drug benefit subsidy deduction, and other deductions. View
us-gaap Effective Income Tax Rate Reconciliation, Nondeductible Expense, Depreciation, Percent Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to depreciation. View
us-gaap Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to impairment loss. View
us-gaap Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Percent Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for share-based payment arrangement. View
us-gaap Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. View
us-gaap Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Amount Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement. View
us-gaap Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Percent Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement. View
us-gaap Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit). View
us-gaap Effective Income Tax Rate Reconciliation, Tax Contingency, Percent Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies. View
us-gaap Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation. View
us-gaap Effective Income Tax Rate Reconciliation, Tax Credit, Investment, Percent Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to investment tax credit. View
us-gaap Electric Revenue (Deprecated 2018-01-31) The aggregate revenue, whether regulated or unregulated, derived from the generation, transmission and distribution of electricity. View
us-gaap Share-based Payment Arrangement, Cash Used to Settle Award Aggregate cash paid by the entity during the period to settle equity instruments granted under equity-based payment arrangements. View
us-gaap Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Amount of cost not yet recognized for nonvested award under share-based payment arrangement. View
us-gaap Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition (Deprecated 2012-01-31) The weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, using a decimal to express in number of years. View
us-gaap Share-based Payment Arrangement, Expense, Tax Benefit Amount of tax benefit for recognition of expense of award under share-based payment arrangement. View
us-gaap Employee Service Share-based Compensation, Unrecognized Compensation Costs on Nonvested Awards (Deprecated 2011-01-31) As of the latest balance sheet date presented, the total compensation cost related to outstanding, nonvested equity-based compensation awards not yet recognized (will be charged against earnings as services are performed or other vesting criteria are met). View
us-gaap Employee Service Share-based Compensation, Unrecognized Compensation Costs on Nonvested Awards, Weighted Average Period of Recognition (Deprecated 2011-01-31) The weighted average period over which unrecognized equity-based compensation costs are expected to be reported. View
us-gaap Energy Related Inventory, Coal Carrying amount as of the balance sheet date of coal, which is a combustible rock or minerals which are extracted from the ground and used as fuel. View
us-gaap Energy Related Inventory, Gas Stored Underground Carrying amount as of the balance sheet date of natural gas stored underground in depleted gas reservoirs, aquifers, or salt caverns to meet seasonal and peak load demands, and also as insurance against unforeseen supply disruptions, and deemed to be a current asset because it is expected to be used within twelve months or in the normal operating cycle. View
us-gaap Excise and Sales Taxes The amount of excise and sales taxes included in sales and revenues, which are then deducted as a cost of sales. Includes excise taxes, which are applied to specific types of transactions or items (such as gasoline or alcohol); and sales, use and value added taxes, which are applied to a broad class of revenue-producing transactions involving a wide range of goods and services. View
us-gaap Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy. View
us-gaap Finite-Lived Intangible Assets, Amortization Expense (Deprecated 2012-01-31) Aggregate amount of intangible asset amortization recognized as expense during the period. View
us-gaap Former Gain Contingency, Recognized in Current Period Amount of gain recognized in the period that had been disclosed in prior periods as a contingent gain. View
us-gaap Forward Contract Indexed to Issuer's Equity, Forward Rate Per Share The per share price of the Company's stock at which the contract holder of the freestanding contract has the right to purchase or sell the Company's stock at a future date. View
us-gaap Forward Contract Indexed to Issuer's Equity, Indexed Shares The number of issuer's shares to which the forward contract is indexed. View
us-gaap Forward Contract Indexed to Issuer's Equity, Settlement Alternatives, Cash, at Fair Value Current fair value of each cash settlement alternative for each freestanding forward contract. View
us-gaap Forward Contract Indexed to Issuer's Equity, Settlement Alternatives, Shares, at Fair Value Number of shares as a settlement alternative for each freestanding forward contract. View
us-gaap Fuel Costs Fuel costs incurred that are directly related to goods produced and sold and services rendered during the reporting period. View
us-gaap Gain Contingency, Unrecorded Amount The amount or range of possible amounts of gain that could be realized upon the resolution of a contingency. View
us-gaap Gain (Loss) on Contract Termination Gain (loss) related to the termination of a contract between the parties. The termination may be due to many causes including early termination of a lease by a lessee, a breach of contract by one party, or a failure to perform. View
us-gaap Gain (Loss) on Disposition of Intangible Assets Amount of gain (loss) on sale or disposal of intangible assets. View
us-gaap Gain (Loss) on Investments Amount of realized and unrealized gain (loss) on investment. View
us-gaap Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation. View
us-gaap Gas Domestic Regulated Revenue (Deprecated 2018-01-31) Revenue derived from the regulated (by a federal, state, or local government or agency) generation, transmission and distribution of [natural] gas. View
us-gaap Goodwill Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. View
us-gaap Goodwill, Gross Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. View
us-gaap Goodwill, Impaired, Accumulated Impairment Loss Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. View
us-gaap Goodwill, Impairment Loss Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. View
us-gaap Debt Securities, Held-to-maturity Amount of investment in debt security measured at amortized cost (held-to-maturity). View
us-gaap Impairment of Intangible Assets, Finite-lived The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value. View
us-gaap Impairment of Long-Lived Assets Held-for-use The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). View
us-gaap Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Amount after tax of income (loss) from continuing operations attributable to the parent. View
us-gaap Income (Loss) from Continuing Operations, Net of Tax, Attributable to Noncontrolling Interest Amount after tax of income (loss) from continuing operations attributable to the noncontrolling interest. View
us-gaap Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. View
us-gaap Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments. View
us-gaap Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest. View
us-gaap Income (Loss) from Continuing Operations, Per Basic and Diluted Share The amount of net income (loss) from continuing operations per each basic and diluted share of common stock or unit when the per share amount is the same for both basic and diluted shares. View
us-gaap Income (Loss) from Continuing Operations, Per Basic Share The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period. View
us-gaap Income (Loss) from Continuing Operations, Per Diluted Share The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. View
us-gaap Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal. View
us-gaap Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Noncontrolling Interest Amount after tax of income (loss) from a discontinued operation attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal. View
us-gaap Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal. View
us-gaap Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic and Diluted Share Per basic and diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation, when the per share amount is the same. View
us-gaap Increase (Decrease) in Accounts Payable and Accrued Liabilities The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid. View
us-gaap Increase (Decrease) in Accrued Taxes Payable The increase (decrease) during the reporting period of all taxes owed but not paid, including income, property and other taxes. View
us-gaap Increase (Decrease) in Deposit Assets The increase (decrease) during the reporting period in moneys or securities given as security including, but not limited to, contract, escrow, or earnest money deposits, retainage (if applicable), deposits with clearing organizations and others, collateral, or margin deposits. View
us-gaap Increase (Decrease) in Employee Related Liabilities The increase (decrease) during the reporting period in the aggregate amount of obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. View
us-gaap Increase (Decrease) in Insurance Settlements Receivable The increase (decrease) during the reporting period in insurance settlements receivable, which are amounts due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy. The expectation is that such reimbursement will be received within one year of the balance sheet date. View
us-gaap Increase (Decrease) in Inventories The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. View
us-gaap Increase (Decrease) in Other Operating Assets Amount of increase (decrease) in operating assets classified as other. View
us-gaap Increase (Decrease) in Other Operating Liabilities Amount of increase (decrease) in operating liabilities classified as other. View
us-gaap Increase (Decrease) in Obligation, Pension and Other Postretirement Benefits Amount of increase (decrease) in obligation for pension and other postretirement benefits. Includes, but is not limited to, defined benefit and defined contribution plans. View
us-gaap Increase (Decrease) in Receivables The increase (decrease) during the reporting period in the total amount due within one year (or one operating cycle) from all parties, associated with underlying transactions that are classified as operating activities. View
us-gaap Increase (Decrease) in Regulatory Assets and Liabilities The increase (decrease) during the reporting period in the value of assets that are created when regulatory agencies permits public utilities to defer costs (revenues) to the balance sheet. This element is a the increase (decrease) of regulatory assets and liabilities combined. View
us-gaap Incremental Common Shares Attributable to Dilutive Effect of Equity Forward Agreements Additional shared included in the calculation of diluted EPS as a result of the potentially dilutive effect of equity forward arrangements using the reverse treasury stock method. View
us-gaap Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. View
us-gaap Insurance Recoveries The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses. View
us-gaap Insurance Settlements Receivable Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy. View
us-gaap Intangible Assets, Net (Excluding Goodwill) Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. View
us-gaap Interest Expense Amount of the cost of borrowed funds accounted for as interest expense. View
us-gaap Interest Income, Securities, Operating, Tax Exempt Amount of operating interest income, including amortization and accretion of premiums and discounts, on securities exempt from state, federal and other income tax. View
us-gaap Interest Paid, Capitalized, Investing Activities Amount of cash paid for interest capitalized, classified as investing activity. View
us-gaap Interest Paid, Excluding Capitalized Interest, Operating Activities Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. View
us-gaap Interest Payable (Deprecated 2009-01-31) Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. For classified balance sheets, used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer); for unclassified balance sheets, used to reflect the total liabilities (regardless of due date). View
us-gaap Proceeds from Issuance of Long-term Debt The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. View
us-gaap Disposal Group, Including Discontinued Operation, Inventory, Current (Deprecated 2015-01-31) Amount classified as inventory attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. View
us-gaap Inventory, Net Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. View
us-gaap Inventory Write-down Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels. View
us-gaap Investment Income, Interest and Dividend Amount before accretion (amortization) of purchase discount (premium) of interest income and dividend income on nonoperating securities. View
us-gaap Operating Leases, Rent Expense Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. View
us-gaap Lessee, Operating Lease, Liability, to be Paid Amount of lessee's undiscounted obligation for lease payment for operating lease. View
us-gaap Lessee, Operating Lease, Liability, to be Paid, Year One Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Lessee, Operating Lease, Liability, to be Paid, Year Five Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Lessee, Operating Lease, Liability, to be Paid, Year Four Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Lessee, Operating Lease, Liability, to be Paid, Year Three Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Lessee, Operating Lease, Liability, to be Paid, Year Two Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Lessee, Operating Lease, Liability, Undiscounted Excess Amount Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease. View
us-gaap Letters of Credit Outstanding, Amount The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. View
us-gaap Liabilities and Equity Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. View
us-gaap Liabilities, Current Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. View
us-gaap Disposal Group, Including Discontinued Operation, Liabilities, Current Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. View
us-gaap Liabilities, Other than Long-term Debt, Noncurrent Aggregated carrying amounts of obligations as of the balance sheet date, excluding long-term debt, incurred as part of the normal operations that are expected to be paid after one year or beyond the normal operating cycle, if longer. Alternate captions include Total Deferred Credits and Other Liabilities. View
us-gaap Liability for Uncertainty in Income Taxes, Current Amount recognized for uncertainty in income taxes classified as current. View
us-gaap Line of Credit Facility, Maximum Amount Outstanding During Period Maximum amount borrowed under the credit facility at any time during the period. View
us-gaap Line of Credit Facility, Maximum Borrowing Capacity Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. View
us-gaap Litigation Settlement, Amount (Deprecated 2017-01-31) Amount of judgment or settlement awarded to (against) the entity in respect of litigation. View
us-gaap Litigation Settlement, Amount Awarded from Other Party Amount awarded from other party in judgment or settlement of litigation. View
us-gaap Proceeds from Legal Settlements Cash received for the settlement of litigation during the current period. View
us-gaap Long-term Debt Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. View
us-gaap Long-term Debt, Current Maturities Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. View
us-gaap Long-Term Debt, Maturity, after Year Five Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Long-Term Debt, Maturity, Year One Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Long-Term Debt, Maturity, Year Five Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Long-Term Debt, Maturity, Year Four Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Long-Term Debt, Maturity, Year Three Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Long-Term Debt, Maturity, Year Two Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Long-term Debt, Excluding Current Maturities Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. View
us-gaap Long-term Purchase Commitment, Amount The minimum amount the entity agreed to spend under the long-term purchase commitment. View
us-gaap Long-term Purchase Commitment, Minimum Energy Volume Required Energy volume that must be purchased within the specified time period of the agreement to avoid penalties or unfavorable effects on pricing, among other adverse consequences. View
us-gaap Loss Contingency Accrual, Payments Amount of cash outflow reducing loss contingency liability. View
us-gaap Maturities of Senior Debt The cash outflow for the settlement of long-term borrowing, with the highest claim on the assets of the entity in case of bankruptcy or liquidation, as it matures. View
us-gaap Stockholders' Equity Attributable to Noncontrolling Interest Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest). View
us-gaap Noncontrolling Interest, Amount Represented by Preferred Stock The amount of noncontrolling interest in subsidiary represented by preferred securities issued by the subsidiary. View
us-gaap Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. View
us-gaap Net Cash Provided by (Used in) Investing Activities Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. View
us-gaap Net Cash Provided by (Used in) Investing Activities, Continuing Operations Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. View
us-gaap Net Cash Provided by (Used in) Operating Activities Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. View
us-gaap Net Cash Provided by (Used in) Operating Activities, Continuing Operations Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. View
us-gaap Net Income (Loss) Attributable to Parent The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. View
us-gaap Net Income (Loss) Attributable to Noncontrolling Interest Amount of Net Income (Loss) attributable to noncontrolling interest. View
us-gaap Net Income (Loss) Available to Common Stockholders, Basic Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. View
us-gaap Net Realized and Unrealized Gain (Loss) on Trading Securities The sum of the realized and unrealized net gain (loss) on trading securities during the period. View
us-gaap Noncontrolling Interest in Variable Interest Entity Portion of equity (net assets) in a variable interest entity (VIE) not attributable, directly or indirectly, to the parent entity. That is, this is the portion of equity in a VIE that is attributable to the noncontrolling interest (previously referred to as minority interest). View
us-gaap Notes Payable Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer. View
us-gaap Number of Reportable Segments Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. View
us-gaap Operating Expenses Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. View
us-gaap Operating Income (Loss) The net result for the period of deducting operating expenses from operating revenues. View
us-gaap Operating Lease, Liability Present value of lessee's discounted obligation for lease payments from operating lease. View
us-gaap Operating Lease, Liability, Current Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. View
us-gaap Operating Lease, Liability, Noncurrent Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. View
us-gaap Operating Lease, Right-of-Use Asset Amount of lessee's right to use underlying asset under operating lease. View
us-gaap Operating Leases, Future Minimum Payments Due Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. View
us-gaap Operating Leases, Future Minimum Payments Due, Next Twelve Months Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. View
us-gaap Operating Leases, Future Minimum Payments, Due in Five Years Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. View
us-gaap Operating Leases, Future Minimum Payments, Due in Four Years Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. View
us-gaap Operating Leases, Future Minimum Payments, Due in Two Years Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. View
us-gaap Operating Leases, Future Minimum Payments, Due Thereafter Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. View
us-gaap Operating Lease, Weighted Average Discount Rate, Percent Weighted average discount rate for operating lease calculated at point in time. View
us-gaap Operating Loss Carryforwards Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. View
us-gaap Other Adjustments for Noncash Items Included in Income (Loss) from Continuing Operations (Deprecated 2009-01-31) Transactions that result in no cash inflows or outflows in the period in which they occur, but affect net income and thus are removed when calculating net cash flow from operating activities using the indirect method. This element is used when there is not a more specific and appropriate element. View
us-gaap Amortization of Other Deferred Charges Amount of amortization of other deferred costs recognized in the income statement. View
us-gaap Other Assets, Current Amount of current assets classified as other. View
us-gaap Other Assets, Noncurrent Amount of noncurrent assets classified as other. View
us-gaap Other Commitment Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. View
us-gaap Other Commitment, to be Paid, after Year Five Amount of commitment classified as other to be paid after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Other Commitment, to be Paid, Year Five Amount of commitment classified as other to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Other Commitment, to be Paid, Year Four Amount of commitment classified as other to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Other Commitment, to be Paid, Year One Amount of commitment classified as other to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Other Commitment, to be Paid, Year Two Amount of commitment classified as other to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Other Commitment, to be Paid, Year Three Amount of commitment classified as other to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax (Deprecated 2012-01-31) The increase (decrease) in accumulated comprehensive income during the period related to pension and other postretirement benefit plans, after tax. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label. View
us-gaap Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax (Deprecated 2012-01-31) Tax effects of the increase (decrease) to accumulated comprehensive income during the period related to benefit plans. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label. View
us-gaap Other Comprehensive Income (Loss), Net of Tax Amount after tax and reclassification adjustments of other comprehensive income (loss). View
us-gaap Other Comprehensive Income (Loss), Net of Tax (Deprecated 2012-01-31) This element represents Other Comprehensive Income or Loss, Net of Tax, for the period. Includes deferred gains or losses on qualifying hedges, unrealized holding gains or losses on available-for-sale securities, minimum pension liability, and cumulative translation adjustment. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label. View
us-gaap Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest Amount after tax of other comprehensive income (loss) attributable to noncontrolling interests. View
us-gaap Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Amount after tax of other comprehensive income (loss) attributable to parent entity. View
us-gaap Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income of defined benefit plan. View
us-gaap Other Comprehensive Income (Loss), Tax, Portion Attributable to Noncontrolling Interest Amount of tax expense (benefit) allocated to other comprehensive income (loss) attributable to noncontrolling interest. View
us-gaap Other Income Amount of revenue and income classified as other. View
us-gaap Other Interest and Dividend Income Amount, after discount, accretion and premium amortization, of interest income and dividend income classified as other. View
us-gaap Other Liabilities, Current Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer. View
us-gaap Other Liabilities, Noncurrent Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer. View
us-gaap Other Noncash Income (Expense) Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other. View
us-gaap Other Noninterest Expense Amount of noninterest expense classified as other. View
us-gaap Other Nonoperating Expense Amount of expense related to nonoperating activities, classified as other. View
us-gaap Other Nonoperating Income Amount of income related to nonoperating activities, classified as other. View
us-gaap Other Nonoperating Income (Expense) Amount of income (expense) related to nonoperating activities, classified as other. View
us-gaap Other Notes Payable Amount of long-term notes payable classified as other. View
us-gaap Other Receivables, Net, Current Amount, after allowance, of receivables classified as other, due within one year or the operating cycle, if longer. View
us-gaap Other Revenue, Net (Deprecated 2018-01-31) Amount, after sales adjustments, returns, allowances, and discounts, of revenue classified as other. View
us-gaap Payment of Financing and Stock Issuance Costs The total of the cash outflow during the period which has been paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt and the cost incurred directly for the issuance of equity securities. View
us-gaap Payments for Nuclear Fuel Cash outflow associated with the purchase of any material that is commonly used in the generation of nuclear energy. View
us-gaap Payments for (Proceeds from) Nuclear Fuel The net cash inflow or outflow from any material that is commonly used in the generation of nuclear energy. View
us-gaap Payments for (Proceeds from) Other Investing Activities Amount of cash (inflow) outflow from investing activities classified as other. View
us-gaap Payments for Repurchase of Common Stock The cash outflow to reacquire common stock during the period. View
us-gaap Proceeds from (Payments for) Other Financing Activities Amount of cash inflow (outflow) from financing activities classified as other. View
us-gaap Payments for Repurchase of Preferred Stock and Preference Stock The cash outflow to reacquire preferred stock during the period. View
us-gaap Payments for Repurchase of Redeemable Noncontrolling Interest The cash outflow during the period for redemption of redeemable noncontrolling interests. View
us-gaap Payments of Debt Issuance Costs The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. View
us-gaap Payments of Ordinary Dividends, Common Stock Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. View
us-gaap Payments of Ordinary Dividends, Noncontrolling Interest Amount of cash outflow in the form of ordinary dividends provided by the non-wholly owned subsidiary to noncontrolling interests. View
us-gaap Payments of Stock Issuance Costs The cash outflow for cost incurred directly with the issuance of an equity security. View
us-gaap Payment, Tax Withholding, Share-based Payment Arrangement Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement. View
us-gaap Payments to Acquire Additional Interest in Subsidiaries The cash outflow associated with the purchase of noncontrolling interest during the period. View
us-gaap Payments to Acquire Debt Securities, Available-for-sale Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). View
us-gaap Payments to Acquire Intangible Assets The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill. View
us-gaap Payments to Acquire Other Investments Amount of cash outflow to acquire investments classified as other. View
us-gaap Payments to Acquire Productive Assets The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets. View
us-gaap Payments to Acquire Projects The cash outflow from the amount invested for projects in hopes of getting a future return or interest from it. View
us-gaap Payments to Acquire Property, Plant, and Equipment The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. View
us-gaap Payments to Acquire Investments to be Held in Decommissioning Trust Fund The cash outflow for the purchase of investments that will be held in a decommissioning trust fund. View
us-gaap Liability, Defined Benefit Plan Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans. View
us-gaap Liability, Defined Benefit Plan, Noncurrent Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent. View
us-gaap Preferred Stock, Liquidation Preference Per Share The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. View
us-gaap Preferred Stock, Par or Stated Value Per Share Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. View
us-gaap Preferred Stock, Shares Authorized The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. View
us-gaap Preferred Stock, Shares Outstanding Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. View
us-gaap Preferred Stock, Value, Issued Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. View
us-gaap Proceeds from Advances for Construction The cash inflow from borrowing by the entity from developers, builders, government agencies and municipalities for construction that are repaid in cash, generally on a straight-line basis over periods ranging from five to forty years. View
us-gaap Proceeds from Collection of Notes Receivable The cash inflow associated with principal collections from a borrowing supported by a written promise to pay an obligation. View
us-gaap Proceeds from Decommissioning Trust Fund Assets The cash inflow from the sale of assets held in a decommissioning trust fund. View
us-gaap Proceeds from Sale of Debt Securities, Available-for-sale Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). View
us-gaap Proceeds from Sale of Intangible Assets The cash inflow from disposal of asset without physical form usually arising from contractual or other legal rights, excluding goodwill. View
us-gaap Proceeds from Sale of Land Held-for-use The cash inflow from the sale of land held for use; excludes sales of land held as inventory or investments. View
us-gaap Proceeds from Sale of Machinery and Equipment The cash inflow from sale of machinery and equipment. View
us-gaap Proceeds from Sale of Property, Plant, and Equipment The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. View
us-gaap Net Income (Loss), Including Portion Attributable to Noncontrolling Interest The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. View
us-gaap Property, Plant and Equipment, Gross Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. View
us-gaap Property, Plant and Equipment, Net Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. View
us-gaap Property, Plant and Equipment, Useful Life, Average (Deprecated 2012-01-31) The average useful life of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. View
us-gaap Accounts Receivable, Credit Loss Expense (Reversal) Amount of expense (reversal of expense) for expected credit loss on accounts receivable. View
us-gaap Public Utilities, Allowance for Funds Used During Construction, Additions Total increase in earnings in the period representing the cost of equity (based on assumed rate of return) and/or borrowed funds (based on interest rate) used to finance construction of regulated assets, which is expected to be recovered through rate adjustments. View
us-gaap Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity The component of the allowance for funds used during construction during the period based on an assumed rate of return on equity funds used in financing the construction of regulated assets. View
us-gaap Allowance for Funds Used During Construction, Capitalized Interest Amount capitalized of allowance for funds used during construction. View
us-gaap Public Utilities, Inventory The period end amount for a type of inventory held by the utility in a schedule of inventories. View
us-gaap Public Utilities, Property, Plant and Equipment, Amount of Disallowed Costs for Recently Completed Plant Amount of disallowed costs for rate making purposes for recently completed plants in regulated industries. View
us-gaap Regulated Entity, Other Assets, Noncurrent Total of noncurrent other assets held by public utility entities. View
us-gaap Regulated Operating Revenue, Other The amount of regulated other operating revenues recognized during the period. View
us-gaap Regulatory Assets The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period. View
us-gaap Regulatory Assets, Noncurrent Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer. View
us-gaap Regulatory Liabilities The amount for the individual regulatory liability as itemized in a table of regulatory liabilities as of the end of the period. View
us-gaap Regulatory Liability, Current The amount for the individual regulatory current liability as itemized in a table of regulatory current liabilities as of the end of the period. View
us-gaap Regulatory Liability, Noncurrent The amount for the individual regulatory noncurrent liability as itemized in a table of regulatory noncurrent liabilities as of the end of the period. View
us-gaap Repayments of Long-term Debt The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. View
us-gaap Repayments of Other Long-term Debt Amount of cash outflow for the payment of debt classified as other, maturing after one year or the operating cycle, if longer. View
us-gaap Repayments of Senior Debt The cash outflow for a long-term debt where the holder has highest claim on the entity's asset in case of bankruptcy or liquidation during the period. View
us-gaap Restricted Cash and Cash Equivalents Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. View
us-gaap Restricted Cash and Cash Equivalents, Current Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. View
us-gaap Restricted Cash and Cash Equivalents, Noncurrent Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. View
us-gaap Retained Earnings (Accumulated Deficit) The cumulative amount of the reporting entity's undistributed earnings or deficit. View
us-gaap Revenue from Contract with Customer, Including Assessed Tax Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise. View
us-gaap Revenue from Related Parties Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates. View
us-gaap Revenue Not from Contract with Customer, Other Amount of revenue that is not accounted for under Topic 606, classified as other. View
us-gaap Revenues Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). View
us-gaap Segment Reporting Information, Income Tax Expense (Benefit) (Deprecated 2011-01-31) Amount of income tax expense or benefit attributed to a reportable segment. View
us-gaap Segment Reporting Information, Interest Expense (Deprecated 2011-01-31) Amount of interest expense for the reportable segment. Such disclosure is presented if the amount is: (a) included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. View
us-gaap Segment Reporting Information, Profit (Loss) (Deprecated 2011-01-31) Amount of profit or loss recognized by the reportable segment. View
us-gaap Segment Reporting Information, Revenue from External Customers (Deprecated 2011-01-31) Amount of revenue from external customers for the reportable segment. Such disclosure is presented if the amount is: (a) included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. View
us-gaap Severance Costs (Deprecated 2013-01-31) The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits. View
us-gaap Share-based Payment Arrangement, Noncash Expense Amount of noncash expense for share-based payment arrangement. View
us-gaap Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost (Deprecated 2012-01-31) Equity-based compensation cost during the period with respect to the award, which will be recognized in income (as well as the total recognized tax benefit) or capitalized as part of the cost of an asset. View
us-gaap Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. View
us-gaap Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period, Weighted Average Grant Date Fair Value (Deprecated 2012-01-31) The weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect during the reporting period as a result of the occurrence of a terminating event specified in the contractual agreement of the plan. View
us-gaap Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). View
us-gaap Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). View
us-gaap Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. View
us-gaap Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. View
us-gaap Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. View
us-gaap Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. View
us-gaap Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. View
us-gaap Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate The risk-free interest rate assumption that is used in valuing an option on its own shares. View
us-gaap Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Number of shares authorized for issuance under share-based payment arrangement. View
us-gaap Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. View
us-gaap Share Price Price of a single share of a number of saleable stocks of a company. View
us-gaap Short-term Debt Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer. View
us-gaap Short-term Debt, Weighted Average Interest Rate, at Point in Time Weighted average interest rate of short-term debt outstanding calculated at point in time. View
us-gaap Short-term Debt, Average Outstanding Amount For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, average borrowings during the period. View
us-gaap Short-term Debt, Maximum Amount Outstanding During Period For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, the maximum amount borrowed at any time during the period. View
us-gaap Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date. View
us-gaap Stockholders' Equity Attributable to Parent Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. View
us-gaap Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. View
us-gaap Stock Issued The fair value of stock issued in noncash financing activities. View
us-gaap Stock Issued During Period, Shares, Dividend Reinvestment Plan Number of shares issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the shareholders to reinvest dividends paid to them by the entity on new issues of stock by the entity. View
us-gaap Stock Issued During Period, Shares, New Issues Number of new stock issued during the period. View
us-gaap Stock Issued During Period, Shares, Other Number of shares of stock issued attributable to transactions classified as other. View
us-gaap Stock Issued During Period, Value, New Issues Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. View
us-gaap Stock Issued During Period, Value, Other Value of shares of stock issued attributable to transactions classified as other. View
us-gaap Tax Credit Carryforward, Amount The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. View
us-gaap Taxes, Miscellaneous All taxes not related to income of the entity or excise or sales taxes levied on the revenue of the entity that are not reported elsewhere. These taxes could include production, real estate, personal property, and pump tax. View
us-gaap Taxes Other than Income, Excise, Production and Property Taxes (Deprecated 2009-01-31) Taxes other than income taxes, if not included elsewhere, that could include, property tax or other selling and distribution-related taxes. View
us-gaap Amortization of Nuclear Fuel Lease The expense charged against earnings for the periodic recognition of capitalized nuclear fuel leases. View
us-gaap Taxes Payable, Current Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). View
us-gaap Unamortized Debt Issuance Expense The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset. View
us-gaap Unbilled Receivables, Current Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer. View
us-gaap Unrealized Gain (Loss) on Derivatives The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. View
us-gaap Unrealized Gain (Loss) on Investments Amount of unrealized gain (loss) on investment. View
us-gaap Unrecognized Tax Benefits Amount of unrecognized tax benefits. View
us-gaap Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions Amount of decrease in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. View
us-gaap Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. View
us-gaap Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities. View
us-gaap Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. View
us-gaap Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. View
us-gaap Unrecognized Tax Benefits, Interest on Income Taxes Accrued Amount of interest expense accrued for an underpayment of income taxes. View
us-gaap Unrecognized Tax Benefits, Interest on Income Taxes Expense Amount of interest expense for an underpayment of income taxes. View
us-gaap Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. View
us-gaap Unrecognized Tax Benefits that Would Impact Effective Tax Rate The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. View
us-gaap Unrecorded Unconditional Purchase Obligation, to be Paid, Year Five Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Unrecorded Unconditional Purchase Obligation, to be Paid, Year One Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Unrecorded Unconditional Purchase Obligation, to be Paid, Year Four Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Unrecorded Unconditional Purchase Obligation, to be Paid, Year Two Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Unrecorded Unconditional Purchase Obligation Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts). View
us-gaap Unrecorded Unconditional Purchase Obligation, to be Paid, after Year Five Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). View
us-gaap Utilities Operating Expense, Depreciation and Amortization Amount of operating expense for depreciation and amortization of regulated operation. View
us-gaap Utilities Operating Expense, Fuel Used Amount of operating expense for fuel used by regulated operation. View
us-gaap Utilities Operating Expense, Gas and Petroleum Purchased Amount of operating expense for purchased gas and petroleum of regulated operation. View
us-gaap Utilities Operating Expense, Maintenance and Operations Amount of operating expense for routine plant maintenance, repairs and operations of regulated operation. View
us-gaap Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses The amount of operating expenses for the period that are associated with the utility's normal revenue producing operation; including selling, general, and administrative expenses, costs incurred for routine plant repairs and maintenance, and operations. View
us-gaap Utilities Operating Expense, Purchased Power Amount of operating expense for purchased power of regulated operation. View
us-gaap Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE). View
us-gaap Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net (Deprecated 2020-01-31) Net carrying amount of the assets and liabilities in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), when the reporting entity is not the VIE's primary beneficiary. View
us-gaap Weighted Average Number of Shares Outstanding, Diluted The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. View
us-gaap Weighted Average Number of Shares Outstanding, Basic Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. View
us-gaap Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position Amount of asset (liability), recognized in statement of financial position, for defined benefit pension and other postretirement plans. View
us-gaap Assets for Plan Benefits, Defined Benefit Plan Amount of asset, recognized in statement of financial position, for overfunded defined benefit pension and other postretirement plans. View
us-gaap Increase (Decrease) in Commodity Contract Assets and Liabilities The increase (decrease) during the reporting period in the assets (liabilities) created through trading commodity-based derivative instruments. View
us-gaap Proceeds from Insurance Settlement, Investing Activities Amount of cash inflow for proceeds from settlement of insurance claim, classified as investing activities. Excludes insurance settlement classified as operating activities. View
us-gaap Income (Loss) from Equity Method Investments Amount of income (loss) for proportionate share of equity method investee's income (loss). View
us-gaap Effective Income Tax Rate Reconciliation,Other Reconciling Items, Percent Percentage of the difference, between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, that is attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority interest income (expense), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, change in enacted tax rate, prior year income taxes, change in deferred tax asset valuation allowance, and other adjustments. View
Chart of Accounts => Accounts
Name View
Disposal Group, Including Discontinued Operation, Assets, Current View
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss View
Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments View
Cost of Purchased Oil and Gas (Deprecated 2018-01-31) View
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Impairment Losses View
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Percent View
Increase (Decrease) in Accrued Taxes Payable View
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements View
Net Cash Provided by (Used in) Investing Activities, Continuing Operations View
Net Cash Provided by (Used in) Operating Activities View
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Tax (Deprecated 2013-01-31) View
Other Comprehensive Income (Loss), Tax, Portion Attributable to Noncontrolling Interest View
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax (Deprecated 2012-01-31) View
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Tax (Deprecated 2012-01-31) View
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax View
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax View
Other Revenue, Net (Deprecated 2018-01-31) View
Payments to Acquire Investments to be Held in Decommissioning Trust Fund View
Regulatory Liability, Noncurrent View
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability View
Securities Loaned View
Segment Reporting Information, Assets (Deprecated 2011-01-31) View
Segment Reporting Information, Depreciation, Depletion, and Amortization Expense (Deprecated 2011-01-31) View
Segment Reporting Information, Expenditures for Additions to Long-Lived Assets (Deprecated 2011-01-31) View
Taxes Other than Income, Excise, Production and Property Taxes (Deprecated 2009-01-31) View
Effective Income Tax Rate Reconciliation,Other Reconciling Items, Percent View
Proceeds from Income Tax Refunds View
Amortization of Nuclear Fuel Lease View
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent View
Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year View
Deferred Tax Liabilities, Deferred Expense View
Gain (Loss) on Extinguishment of Debt View
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax View
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax View
Preferred Stock Dividends, Income Statement Impact View
Assets, Current View
Assets, Fair Value Disclosure View
Other Receivables, Net, Current View
Regulatory Liabilities View
Regulatory Liability, Current View
Accounts Payable and Accrued Liabilities (Deprecated 2009-01-31) View
Accounts Payable and Accrued Liabilities, Current View
Accounts Receivable, after Allowance for Credit Loss, Current View
Accumulated Deferred Investment Tax Credit View
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment View
Accumulated Other Comprehensive Income (Loss), Net of Tax View
Additional Collateral, Aggregate Fair Value View
Additional Paid in Capital View
Amortization View
Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities, Other (Deprecated 2011-01-31) View
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs View
Share-based Payment Arrangement, Expense View
Share-based Payment Arrangement, Expense, after Tax View
Accounts Receivable, Allowance for Credit Loss View
Accounts Receivable, Allowance for Credit Loss, Current View
Accounts Receivable, Allowance for Credit Loss, Writeoff View
Allowance for Funds Used During Construction, Investing Activities View
Amortization of Debt Issuance Costs and Discounts View
Amortization of Intangible Assets View
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount View
Asset Impairment Charges View
Asset Retirement Obligation View
Asset Retirement Obligation, Accretion Expense View
Asset Retirement Obligation, Current View
Asset Retirement Obligation, Liabilities Incurred View
Asset Retirement Obligation, Liabilities Settled View
Asset Retirement Obligation, Revision of Estimate View
Asset Retirement Obligations, Noncurrent View
Assets View
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax View
Debt Securities, Available-for-sale, Amortized Cost View
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax View
Available-for-sale Securities View
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax View
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax View
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss (Deprecated 2018-01-31) View
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss View
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss (Deprecated 2018-01-31) View
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value View
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss View
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss (Deprecated 2018-01-31) View
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value View
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value View
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 View
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 View
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five View
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five View
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 View
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 View
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis (Deprecated 2014-01-31) View
Debt Securities, Available-for-sale View
Available-for-sale Securities, Gross Realized Gains View
Available-for-sale Securities, Gross Realized Gains (Losses), Sale Proceeds (Deprecated 2018-01-31) View
Available-for-sale Securities, Gross Realized Losses View
Available-for-sale Securities, Gross Unrealized Gain View
Available-for-sale Securities, Gross Unrealized Loss View
Available-for-sale Securities, Gross Unrealized Losses (Deprecated 2013-01-31) View
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses (Deprecated 2012-01-31) View
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses (Deprecated 2013-01-31) View
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses (Deprecated 2012-01-31) View
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses (Deprecated 2013-01-31) View
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses (Deprecated 2012-01-31) View
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses (Deprecated 2013-01-31) View
Available-for-sale Securities, Gross Unrealized Gains (Deprecated 2013-01-31) View
Capital Expenditures Incurred but Not yet Paid View
Capitalized Computer Software, Accumulated Amortization View
Capitalized Computer Software, Amortization View
Capitalized Computer Software, Gross View
Capital Leased Assets, Gross View
Capital Lease Obligations View
Capital Leases, Future Minimum Payments Due View
Capital Leases, Future Minimum Payments Due, Next Twelve Months View
Capital Leases, Future Minimum Payments Due in Five Years View
Capital Leases, Future Minimum Payments Due in Four Years View
Capital Leases, Future Minimum Payments Due in Three Years View
Capital Leases, Future Minimum Payments Due in Two Years View
Capital Leases, Future Minimum Payments Due Thereafter View
Capital Leases, Future Minimum Payments, Interest Included in Payments View
Cash and Cash Equivalents, at Carrying Value View
Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations View
Cash and Cash Equivalents, Period Increase (Decrease) View
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents View
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect View
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect View
Cash Paid for Capitalized Interest (Deprecated 2011-01-31) View
Cash Provided by (Used in) Financing Activities, Discontinued Operations View
Cash Provided by (Used in) Investing Activities, Discontinued Operations View
Cash Provided by (Used in) Operating Activities, Discontinued Operations View
Cash Surrender Value of Life Insurance View
Collateral Already Posted, Aggregate Fair Value View
Commitments and Contingencies View
Common Stock, Dividends, Per Share, Cash Paid View
Common Stockholders' Equity (Deprecated 2013-01-31) View
Common Stock, Par or Stated Value Per Share View
Common Stock, Shares Authorized View
Common Stock, Shares, Outstanding View
Common Stock, Value, Issued View
Comprehensive Income (Loss), Net of Tax, Attributable to Parent View
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest View
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest View
Concentration Risk, Credit Risk, Financial Instrument, Maximum Exposure View
Contract with Customer, Liability, Current View
Cost, Depreciation, Amortization and Depletion View
Cost of Goods Sold, Depreciation, Depletion and Amortization (Deprecated 2018-01-31) View
Cost of Natural Gas Purchases (Deprecated 2018-01-31) View
Cost of Purchased Power (Deprecated 2018-01-31) View
Costs Incurred, Asset Retirement Obligation Incurred View
Credit Derivative, Maximum Exposure, Undiscounted View
Current Federal Tax Expense (Benefit) View
Current State and Local Tax Expense (Benefit) View
Customer Advances for Construction View
Customer Deposits, Current View
Debt and Equity Securities, Gain (Loss) View
Debt Conversion, Original Debt, Amount View
Long-term Debt, Gross View
Debt Instrument, Face Amount View
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum (Deprecated 2016-01-31) View
Debt Instrument, Unamortized Discount (Premium), Net View
Debt, Weighted Average Interest Rate View
Decommissioning Fund Investments View
Decommissioning Fund Investments, Fair Value View
Deferred Compensation Liability, Classified, Noncurrent View
Deferred Federal Income Tax Expense (Benefit) View
Deferred Income Taxes and Other Assets, Current View
Deferred Income Taxes and Other Tax Liabilities, Noncurrent View
Deferred Income Taxes and Tax Credits View
Deferred Income Tax Liabilities, Net View
Deferred Other Tax Expense (Benefit) View
Deferred State and Local Income Tax Expense (Benefit) View
Deferred Tax Assets, Charitable Contribution Carryforwards View
Deferred Tax Assets, Net of Valuation Allowance View
Deferred Tax Assets, Net of Valuation Allowance, Current View
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent View
Deferred Tax Assets, Other View
Deferred Tax Assets, Regulatory Assets and Liabilities View
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits View
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Asset Retirement Obligations View
Deferred Tax Assets, Valuation Allowance View
Deferred Tax Assets, Valuation Allowance, Noncurrent View
Deferred Tax Liabilities, Net View
Deferred Tax Liabilities, Net, Current View
Deferred Tax Liabilities, Goodwill and Intangible Assets View
Deferred Tax Liabilities, Net, Noncurrent View
Deferred Tax Liabilities, Other View
Deferred Tax Liabilities, Property, Plant and Equipment View
Deferred Tax Liabilities, Regulatory Assets and Liabilities View
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment View
Defined Benefit Plan, Funded (Unfunded) Status of Plan View
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment View
Defined Contribution Plan, Cost View
Depreciation, Amortization and Accretion, Net View
Derivative Asset Designated as Hedging Instrument, Fair Value (Deprecated 2011-01-31) View
Derivative Asset Not Designated as Hedging Instrument, Fair Value (Deprecated 2011-01-31) View
Derivative Asset, Current View
Derivative, Collateral, Obligation to Return Cash View
Derivative Credit Risk Valuation Adjustment, Derivative Liabilities View
Derivative Asset, Fair Value, Gross Asset View
Derivative Liability, Fair Value, Gross Liability View
Derivative Instruments and Hedges, Assets View
Derivative Liability, Current View
Derivative Liability Designated as Hedging Instrument, Fair Value (Deprecated 2011-01-31) View
Derivative Liability Not Designated as Hedging Instrument, Fair Value (Deprecated 2011-01-31) View
Derivative, Net Liability Position, Aggregate Fair Value View
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax View
Discontinued Operation, Tax Effect of Discontinued Operation View
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net View
Disposal Group, Including Discontinued Operation, Accounts Payable View
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents View
Disposal Group, Including Discontinued Operation, Deferred Tax Assets View
Disposal Group, Including Discontinued Operation, Deferred Tax Liabilities View
Disposal Group, Including Discontinued Operation, Interest Expense View
Disposal Group, Including Discontinued Operation, Inventory (Deprecated 2014-01-31) View
Disposal Group, Including Discontinued Operation, Operating Expense View
Disposal Group, Including Discontinued Operation, Operating Income (Loss) View
Disposal Group, Including Discontinued Operation, Other Assets, Current View
Disposal Group, Including Discontinued Operation, Other Liabilities, Current View
Disposal Group, Including Discontinued Operation, Revenue View
Dividends View
Dividends Payable, Amount (Deprecated 2012-01-31) View
Dividends Payable View
Earnings Per Share, Basic View
Earnings Per Share, Basic and Diluted View
Earnings Per Share, Diluted View
Effective Income Tax Rate Reconciliation, Percent View
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent View
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent View
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent View
Effective Income Tax Rate Reconciliation, Deduction, Percent View
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Depreciation, Percent View
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent View
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Percent View
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent View
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Amount View
Other Notes Payable View
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent View
Effective Income Tax Rate Reconciliation, Tax Contingency, Percent View
Effective Income Tax Rate Reconciliation, Tax Credit, Percent View
Effective Income Tax Rate Reconciliation, Tax Credit, Investment, Percent View
Electric Revenue (Deprecated 2018-01-31) View
Share-based Payment Arrangement, Cash Used to Settle Award View
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount View
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition (Deprecated 2012-01-31) View
Share-based Payment Arrangement, Expense, Tax Benefit View
Employee Service Share-based Compensation, Unrecognized Compensation Costs on Nonvested Awards (Deprecated 2011-01-31) View
Employee Service Share-based Compensation, Unrecognized Compensation Costs on Nonvested Awards, Weighted Average Period of Recognition (Deprecated 2011-01-31) View
Energy Related Inventory, Coal View
Energy Related Inventory, Gas Stored Underground View
Excise and Sales Taxes View
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net View
Finite-Lived Intangible Assets, Amortization Expense (Deprecated 2012-01-31) View
Former Gain Contingency, Recognized in Current Period View
Forward Contract Indexed to Issuer's Equity, Forward Rate Per Share View
Forward Contract Indexed to Issuer's Equity, Indexed Shares View
Forward Contract Indexed to Issuer's Equity, Settlement Alternatives, Cash, at Fair Value View
Forward Contract Indexed to Issuer's Equity, Settlement Alternatives, Shares, at Fair Value View
Fuel Costs View
Gain Contingency, Unrecorded Amount View
Gain (Loss) on Contract Termination View
Gain (Loss) on Disposition of Intangible Assets View
Gain (Loss) on Investments View
Gain (Loss) on Sale of Properties View
Gas Domestic Regulated Revenue (Deprecated 2018-01-31) View
Goodwill View
Goodwill, Gross View
Goodwill, Impaired, Accumulated Impairment Loss View
Goodwill, Impairment Loss View
Debt Securities, Held-to-maturity View
Impairment of Intangible Assets, Finite-lived View
Impairment of Long-Lived Assets Held-for-use View
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent View
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Noncontrolling Interest View
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest View
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest View
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest View
Income (Loss) from Continuing Operations, Per Basic and Diluted Share View
Income (Loss) from Continuing Operations, Per Basic Share View
Income (Loss) from Continuing Operations, Per Diluted Share View
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest View
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Noncontrolling Interest View
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent View
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic and Diluted Share View
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share View
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share View
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority View
Income Tax Expense (Benefit) View
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability View
Income Taxes Paid, Net View
Increase (Decrease) in Accounts Payable and Accrued Liabilities View
Increase (Decrease) in Deposit Assets View
Increase (Decrease) in Employee Related Liabilities View
Increase (Decrease) in Insurance Settlements Receivable View
Increase (Decrease) in Inventories View
Increase (Decrease) in Other Operating Assets View
Increase (Decrease) in Other Operating Liabilities View
Increase (Decrease) in Obligation, Pension and Other Postretirement Benefits View
Increase (Decrease) in Receivables View
Increase (Decrease) in Regulatory Assets and Liabilities View
Incremental Common Shares Attributable to Dilutive Effect of Equity Forward Agreements View
Insurance Recoveries View
Insurance Settlements Receivable View
Intangible Assets, Net (Excluding Goodwill) View
Interest Expense View
Interest Income, Securities, Operating, Tax Exempt View
Interest Paid, Capitalized, Investing Activities View
Interest Paid, Excluding Capitalized Interest, Operating Activities View
Interest Payable (Deprecated 2009-01-31) View
Interest Payable, Current View
Disposal Group, Including Discontinued Operation, Inventory, Current (Deprecated 2015-01-31) View
Inventory, Net View
Inventory Write-down View
Investment Income, Interest and Dividend View
Operating Leases, Rent Expense View
Lessee, Operating Lease, Liability, to be Paid View
Lessee, Operating Lease, Liability, to be Paid, after Year Five View
Lessee, Operating Lease, Liability, to be Paid, Year One View
Lessee, Operating Lease, Liability, to be Paid, Year Five View
Lessee, Operating Lease, Liability, to be Paid, Year Four View
Lessee, Operating Lease, Liability, to be Paid, Year Three View
Lessee, Operating Lease, Liability, to be Paid, Year Two View
Lessee, Operating Lease, Liability, Undiscounted Excess Amount View
Letters of Credit Outstanding, Amount View
Liabilities and Equity View
Liabilities, Current View
Disposal Group, Including Discontinued Operation, Liabilities, Current View
Liabilities, Other than Long-term Debt, Noncurrent View
Liability for Uncertainty in Income Taxes, Current View
Line of Credit Facility, Maximum Amount Outstanding During Period View
Line of Credit Facility, Maximum Borrowing Capacity View
Litigation Settlement, Amount (Deprecated 2017-01-31) View
Litigation Settlement, Amount Awarded from Other Party View
Loans, Gross, Insurance Policy View
Long-term Debt View
Long-term Debt, Current Maturities View
Long-Term Debt, Maturity, after Year Five View
Long-Term Debt, Maturity, Year One View
Long-Term Debt, Maturity, Year Five View
Long-Term Debt, Maturity, Year Four View
Long-Term Debt, Maturity, Year Three View
Long-Term Debt, Maturity, Year Two View
Long-term Debt, Excluding Current Maturities View
Long-term Line of Credit, Noncurrent View
Long-term Purchase Commitment, Amount View
Long-term Purchase Commitment, Minimum Energy Volume Required View
Loss Contingency Accrual, Payments View
Maturities of Senior Debt View
Stockholders' Equity Attributable to Noncontrolling Interest View
Noncontrolling Interest, Amount Represented by Preferred Stock View
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners View
Net Cash Provided by (Used in) Financing Activities View
Net Cash Provided by (Used in) Financing Activities, Continuing Operations View
Net Cash Provided by (Used in) Investing Activities View
Net Cash Provided by (Used in) Operating Activities, Continuing Operations View
Net Income (Loss) Attributable to Parent View
Net Income (Loss) Attributable to Noncontrolling Interest View
Net Income (Loss) Available to Common Stockholders, Basic View
Net Realized and Unrealized Gain (Loss) on Trading Securities View
Noncontrolling Interest in Variable Interest Entity View
Notes Payable View
Number of Reportable Segments View
Operating Expenses View
Operating Income (Loss) View
Operating Lease, Liability View
Operating Lease, Liability, Current View
Operating Lease, Liability, Noncurrent View
Operating Lease, Right-of-Use Asset View
Operating Leases, Future Minimum Payments Due View
Operating Leases, Future Minimum Payments Due, Next Twelve Months View
Operating Leases, Future Minimum Payments, Due in Five Years View
Operating Leases, Future Minimum Payments, Due in Four Years View
Operating Leases, Future Minimum Payments, Due in Three Years View
Operating Leases, Future Minimum Payments, Due in Two Years View
Operating Leases, Future Minimum Payments, Due Thereafter View
Operating Lease, Weighted Average Discount Rate, Percent View
Operating Loss Carryforwards View
Other Adjustments for Noncash Items Included in Income (Loss) from Continuing Operations (Deprecated 2009-01-31) View
Amortization of Other Deferred Charges View
Other Assets, Current View
Other Assets, Noncurrent View
Other Commitment View
Other Commitment, to be Paid, after Year Five View
Other Commitment, to be Paid, Year Five View
Other Commitment, to be Paid, Year Four View
Other Commitment, to be Paid, Year One View
Other Commitment, to be Paid, Year Two View
Other Commitment, to be Paid, Year Three View
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax (Deprecated 2012-01-31) View
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax (Deprecated 2012-01-31) View
Other Comprehensive Income (Loss), Net of Tax View
Other Comprehensive Income (Loss), Net of Tax (Deprecated 2012-01-31) View
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest View
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent View
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax View
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax View
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax (Deprecated 2013-01-31) View
Other Income View
Other Interest and Dividend Income View
Other Liabilities, Current View
Other Liabilities, Noncurrent View
Other Noncash Income (Expense) View
Other Noninterest Expense View
Other Nonoperating Expense View
Other Nonoperating Income View
Other Nonoperating Income (Expense) View
Payment of Financing and Stock Issuance Costs View
Payments for Nuclear Fuel View
Payments for (Proceeds from) Nuclear Fuel View
Payments for (Proceeds from) Other Investing Activities View
Payments for Repurchase of Common Stock View
Payments for Repurchase of Convertible Preferred Stock View
Payments for Repurchase of Preferred Stock and Preference Stock View
Payments for Repurchase of Redeemable Noncontrolling Interest View
Payments of Debt Issuance Costs View
Payments of Ordinary Dividends, Common Stock View
Payments of Ordinary Dividends, Noncontrolling Interest View
Payments of Stock Issuance Costs View
Payment, Tax Withholding, Share-based Payment Arrangement View
Payments to Acquire Additional Interest in Subsidiaries View
Payments to Acquire Debt Securities, Available-for-sale View
Payments to Acquire Intangible Assets View
Payments to Acquire Other Investments View
Payments to Acquire Productive Assets View
Payments to Acquire Projects View
Payments to Acquire Property, Plant, and Equipment View
Liability, Defined Benefit Plan View
Liability, Defined Benefit Plan, Noncurrent View
Pension and Other Postretirement Defined Benefit Plans, Noncurrent Liabilities (Deprecated 2009-01-31) View
Preferred Stock, Liquidation Preference Per Share View
Preferred Stock, Par or Stated Value Per Share View
Preferred Stock, Shares Authorized View
Preferred Stock, Shares Outstanding View
Preferred Stock, Value, Issued View
Proceeds from Advances for Construction View
Proceeds from Collection of Notes Receivable View
Proceeds from Decommissioning Trust Fund Assets View
Proceeds from Issuance of Common Stock View
Proceeds from Issuance of Long-term Debt View
Proceeds from Legal Settlements View
Proceeds from (Payments for) Other Financing Activities View
Proceeds from (Repayments of) Short-term Debt View
Proceeds from Sale and Maturity of Other Investments View
Proceeds from Sale of Debt Securities, Available-for-sale View
Proceeds from Sale of Intangible Assets View
Proceeds from Sale of Land Held-for-use View
Proceeds from Sale of Machinery and Equipment View
Proceeds from Sale of Property, Plant, and Equipment View
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest View
Property, Plant and Equipment, Gross View
Property, Plant and Equipment, Net View
Property, Plant and Equipment, Useful Life, Average (Deprecated 2012-01-31) View
Accounts Receivable, Credit Loss Expense (Reversal) View
Public Utilities, Allowance for Funds Used During Construction, Additions View
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity View
Allowance for Funds Used During Construction, Capitalized Interest View
Public Utilities, Inventory View
Public Utilities, Property, Plant and Equipment, Amount of Disallowed Costs for Recently Completed Plant View
Public Utilities, Property, Plant and Equipment, Amount of Indirect Disallowance of Costs of Recently Completed Plants View
Public Utilities, Property, Plant and Equipment, Construction Work in Progress View
Quantifying Misstatement in Current Year Financial Statements, Amount View
Ratio of Indebtedness to Net Capital (Deprecated 2012-01-31) View
Redeemable Preferred Stock (Deprecated 2011-01-31) View
Regulated Entity, Other Assets, Noncurrent View
Regulated Operating Revenue, Other View
Regulatory Assets View
Regulatory Assets, Current View
Regulatory Assets, Noncurrent View
Repayments of Long-term Debt View
Repayments of Other Long-term Debt View
Repayments of Senior Debt View
Restricted Cash and Cash Equivalents View
Restricted Cash and Cash Equivalents, Current View
Restricted Cash and Cash Equivalents, Noncurrent View
Retained Earnings (Accumulated Deficit) View
Revenue from Contract with Customer, Including Assessed Tax View
Revenue from Related Parties View
Revenue Not from Contract with Customer, Other View
Revenues View
Sale of Stock, Price Per Share View
Segment Reporting Information, Income Tax Expense (Benefit) (Deprecated 2011-01-31) View
Segment Reporting Information, Interest Expense (Deprecated 2011-01-31) View
Segment Reporting Information, Profit (Loss) (Deprecated 2011-01-31) View
Segment Reporting Information, Revenue from External Customers (Deprecated 2011-01-31) View
Severance Costs (Deprecated 2013-01-31) View
Share-based Payment Arrangement, Noncash Expense View
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost (Deprecated 2012-01-31) View
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period View
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period, Weighted Average Grant Date Fair Value (Deprecated 2012-01-31) View
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period View
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value View
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number View
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value View
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period View
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value View
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum View
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum View
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate View
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized View
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant View
Share Price View
Short-term Debt View
Short-term Debt, Weighted Average Interest Rate, at Point in Time View
Short-term Debt, Average Outstanding Amount View
Short-term Debt, Maximum Amount Outstanding During Period View
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit View
Stockholders' Equity Attributable to Parent View
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest View
Stock Issued View
Stock Issued During Period, Shares, Dividend Reinvestment Plan View
Stock Issued During Period, Shares, New Issues View
Stock Issued During Period, Shares, Other View
Stock Issued During Period, Value, New Issues View
Stock Issued During Period, Value, Other View
Tax Credit Carryforward, Amount View
Taxes, Miscellaneous View
Taxes Payable (Deprecated 2009-01-31) View
Taxes Payable, Current View
Temporary Equity, Carrying Amount (Deprecated 2012-01-31) View
Unamortized Debt Issuance Expense View
Unbilled Receivables, Current View
Unrealized Gain (Loss) on Derivatives View
Unrealized Gain (Loss) on Investments View
Unrecognized Tax Benefits View
Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions View
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions View
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities View
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions View
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions View
Unrecognized Tax Benefits, Interest on Income Taxes Accrued View
Unrecognized Tax Benefits, Interest on Income Taxes Expense View
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations View
Unrecognized Tax Benefits that Would Impact Effective Tax Rate View
Unrecorded Unconditional Purchase Obligation, to be Paid, Year Five View
Unrecorded Unconditional Purchase Obligation, to be Paid, Year One View
Unrecorded Unconditional Purchase Obligation, to be Paid, Year Four View
Unrecorded Unconditional Purchase Obligation, to be Paid, Year Two View
Unrecorded Unconditional Purchase Obligation, to be Paid, Year Three View
Unrecorded Unconditional Purchase Obligation View
Unrecorded Unconditional Purchase Obligation, to be Paid, after Year Five View
Utilities Operating Expense, Depreciation and Amortization View
Utilities Operating Expense, Fuel Used View
Utilities Operating Expense, Gas and Petroleum Purchased View
Utilities Operating Expense, Maintenance and Operations View
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses View
Utilities Operating Expense, Purchased Power View
Variable Interest Entity, Carrying Amount of Assets, Unconsolidated VIE (Deprecated 2009-01-31) View
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount View
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net (Deprecated 2020-01-31) View
Weighted Average Number of Shares Outstanding, Diluted View
Weighted Average Number of Shares Outstanding, Basic View
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position View
Assets for Plan Benefits, Defined Benefit Plan View
Increase (Decrease) in Commodity Contract Assets and Liabilities View
Proceeds from Insurance Settlement, Investing Activities View
Income (Loss) from Equity Method Investments View