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 |
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 |
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 |
Common Stock, Shares, Issued |
Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. |
View
|
us-gaap |
Cumulative Effect of Initial Adoption of FIN 48 (Deprecated 2011-01-31) |
Cumulative net-of-tax effect of initial adoption of FIN 48 - Accounting for Uncertainty in Income Taxes on the opening balance of retained earnings. The cumulative-effect adjustment does not include items that would not be recognized in earnings, such as the effect of adopting this Interpretation on tax positions related to business combinations. The amount of that cumulative-effect adjustment is the difference between the net amount of assets and liabilities recognized in the statement of financial position prior to the application of this Interpretation and the net amount of assets and liabilities recognized as a result of applying the provisions of this Interpretation. |
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 Asset, Noncurrent |
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 after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. |
View
|
us-gaap |
Excess Tax Benefit from Share-based Compensation, Financing Activities |
Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes. |
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 |
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 |
Other Assets, Noncurrent |
Amount of noncurrent assets classified as other. |
View
|
us-gaap |
Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost Recognized in Net Periodic Pension Cost, Net of Tax (Deprecated 2012-01-31) |
The adjustment out of other comprehensive income for prior service costs recognized as a component of net period benefit cost during the period, after tax. |
View
|
us-gaap |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax (Deprecated 2012-01-31) |
Net of tax effect change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges after taxes. A cash flow hedge is a hedge of the exposure to variability in the cash flows of a recognized asset or liability or a forecasted transaction that is attributable to a particular risk. The change includes an entity's share of an equity investee's increase or decrease in deferred hedging gains or losses. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label. |
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 |
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 |
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 |
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 |
Treasury Stock, Value |
The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury. |
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 |
Payments to Acquire Other Investments |
Amount of cash outflow to acquire investments classified as other. |
View
|
us-gaap |
Dividends, Preferred Stock |
Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK). |
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 (Deprecated 2009-01-31) |
Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. 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, Current |
Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). |
View
|
us-gaap |
Accounts Payable, Other (Deprecated 2009-01-31) |
Carrying value as of the balance sheet date of obligations incurred and payable, which are not elsewhere specified in the taxonomy. 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, Other, Current |
Amount of obligations incurred classified as other, payable within one year or the normal operating cycle, if longer. |
View
|
us-gaap |
Accounts Receivable, before Allowance for Credit Loss, Current |
Amount, before 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 |
Accrued Income Taxes, Noncurrent |
Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due beyond one year or the operating cycle, whichever is longer. Alternate captions include income taxes payable, noncurrent. |
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 |
Additional Paid in Capital, Common Stock |
Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital. |
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 |
APIC, Share-based Payment Arrangement, Increase for Cost Recognition |
Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement. |
View
|
us-gaap |
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation |
Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit. |
View
|
us-gaap |
Share-based Payment Arrangement, Expense |
Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. |
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 |
Amortization of Debt Issuance Costs |
Amount of amortization expense attributable to debt issuance costs. |
View
|
us-gaap |
Amortization of Regulatory Asset |
The expense charged against earnings during the period to allocate the capitalized costs of regulatory assets over the periods expected to benefit from such costs. |
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 Held-for-sale, Current (Deprecated 2014-01-31) |
Current assets (normally turning over within one year or one business cycle if longer) that are held for sale apart from normal operations and anticipated to be sold within one year. |
View
|
us-gaap |
Assets Held-for-sale, Long Lived (Deprecated 2014-01-31) |
Long-lived assets that are held for sale apart from normal operations and anticipated to be sold in less than one year. |
View
|
us-gaap |
Assets Held-for-sale, Property, Plant and Equipment (Deprecated 2014-01-31) |
Property, plant and equipment that is held for sale apart from normal operations and anticipated to be sold in less than one year. |
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 Divested from Deconsolidation |
Reduction in cash due to no longer including the former subsidiary's cash in the consolidated entity's cash. |
View
|
us-gaap |
Cash Dividends (Deprecated 2009-01-31) |
Cash dividend declared by an entity to shareholders during the period. This element includes paid and unpaid dividends declared during the period. |
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 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 |
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 |
Energy Related Inventory |
Carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies relating to a source of usable power held for future sale or future use in manufacturing or production process. |
View
|
us-gaap |
Proceeds from Equity Method Investment, Distribution |
Amount of distribution received from equity method investee for return on investment, classified as operating activities. Excludes distribution for return of investment, classified as investing activities. |
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 |
Construction in Progress, Gross |
Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service. |
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 |
Costs and Expenses |
Total costs of sales and operating expenses for the period. |
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 |
Deferred Income Taxes and Tax Credits |
Amount of deferred income tax expense (benefit) and income tax credits. |
View
|
us-gaap |
Deferred Tax Liabilities, Gross |
Amount of deferred tax liability attributable to taxable temporary differences. |
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 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 |
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease) |
Amount of increase (decrease) in benefit obligation of defined benefit plan. |
View
|
us-gaap |
Deposit Assets |
The carrying amount of the asset transferred to a third party to serve as a deposit, which typically serves as security against failure by the transferor to perform under terms of an agreement. |
View
|
us-gaap |
Depreciation, Depletion and Amortization, Nonproduction |
The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. |
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, Noncurrent |
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 after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. |
View
|
us-gaap |
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal |
Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations. |
View
|
us-gaap |
Dividends, Cash |
Amount of paid and unpaid cash dividends declared for classes of stock, for example, but not limited to, common and preferred. |
View
|
us-gaap |
Dividends, Common Stock |
Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK). |
View
|
us-gaap |
Excess Tax Benefit from Share-based Compensation, Operating Activities |
Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes. |
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 (Loss) on Disposition of Other Assets |
Amount of gain (loss) on sale or disposal of other assets. |
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 |
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 Tax Expense (Benefit) |
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. |
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 |
Increase (Decrease) in Accounts Payable |
The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. |
View
|
us-gaap |
Increase (Decrease) in Accounts Receivable |
The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. |
View
|
us-gaap |
Increase (Decrease) in Income Taxes Payable |
The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction. |
View
|
us-gaap |
Increase (Decrease) in Deferred Income Taxes |
The increase (decrease) during the reporting period in the account that represents the temporary difference that results from Income or Loss that is recognized for accounting purposes but not for tax purposes and vice versa. |
View
|
us-gaap |
Increase (Decrease) in Deposits Outstanding |
The increase (decrease) during the reporting period in monies given as security or collateral for items acquired or borrowed on a temporary basis. Deposits may also be paid as initial payment of the cost of acquisition or for the right to enter into a contract or agreement. |
View
|
us-gaap |
Increase (Decrease) in Interest Payable, Net |
The increase (decrease) during the reporting period in interest payable, which represents the amount owed to note holders, bond holders, and other parties for interest earned on loans or credit extended to the reporting entity. |
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 and Liabilities, Net |
Amount of increase (decrease) in operating assets after deduction of operating liabilities classified as other. |
View
|
us-gaap |
Increase (Decrease) in Other Regulatory Assets |
The increase (decrease) during the reporting period in the value of other assets that are created when regulatory agencies permits public utilities to defer costs to the balance sheet. |
View
|
us-gaap |
Increase (Decrease) in Prepaid Expense |
The increase (decrease) during the reporting period in the amount of outstanding money paid in advance for goods or services that bring economic benefits for future periods. |
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 |
Increase (Decrease) in Regulatory Liabilities |
The increase (decrease) during the reporting period in regulated liabilities. Regulated liabilities are created when regulatory agency permits an entity to defer revenues to the balance sheet. |
View
|
us-gaap |
Increase (Decrease) in Restricted Cash |
The net cash inflow or outflow for the increase (decrease) associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities. |
View
|
us-gaap |
Interest Expense |
Amount of the cost of borrowed funds accounted for as interest expense. |
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, 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 |
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 |
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures |
Amount of investment in equity method investee and investment in and advance to affiliate. |
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 |
Liability Above Market for Nonutility Generator Contracts, Noncurrent (Deprecated 2016-01-31) |
Electric utility liability attributable to above market contracts with NUGs (nonutility generators), which are due to deregulation of the utility's generation business. |
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, 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 Pollution Control Bond, Noncurrent |
Noncurrent portion of a debt security issued by a state, certain agencies or authorities, a local government, or development corporation to finance the construction of air- or water-pollution control facilities or sewage or solid waste disposal facilities pursuant to federal law. The bonds are backed by the credit of the beneficiary of the financing rather than the credit of the issuer. |
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, Decrease from Distributions to Noncontrolling Interest Holders |
Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders. |
View
|
us-gaap |
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests |
Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests). |
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) 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) 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 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 |
Operating Income (Loss) |
The net result for the period of deducting operating expenses from operating revenues. |
View
|
us-gaap |
Other Assets, Current |
Amount of current assets classified as other. |
View
|
us-gaap |
Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost Recognized in Net Periodic Pension Cost, Tax (Deprecated 2013-01-31) |
Tax effect of the income statement impact of the reclassification adjustment for prior service costs recognized as a component of net period benefit cost. |
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), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax |
Amount, after tax, of gain (loss) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. |
View
|
us-gaap |
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax |
Amount of tax expense (benefit) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. |
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), Derivatives Qualifying as Hedges, Tax Effect (Deprecated 2012-01-31) |
Total tax effect of the change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. The change includes an entity's share of an equity investee's increase or decrease in deferred hedging gains or losses. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label. |
View
|
us-gaap |
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax |
Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. |
View
|
us-gaap |
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax |
Amount, before adjustment, of tax expense (benefit) for unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. |
View
|
us-gaap |
Other Deferred Costs, Net |
Net amount of other deferred costs capitalized at the end of the reporting period. Does not include deferred finance costs or deferred acquisition costs of insurance companies. |
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 Long-term Debt, Noncurrent |
Amount of long-term debt classified as other, payable after one year or the operating cycle, if longer. |
View
|
us-gaap |
Other Nonoperating Income (Expense) |
Amount of income (expense) related to nonoperating activities, classified as other. |
View
|
us-gaap |
Other Receivables |
Amount due from parties in nontrade transactions, classified as other. |
View
|
us-gaap |
Payments of Capital Distribution |
Cash outflow to owners or shareholders, excluding ordinary dividends. Includes special dividends. |
View
|
us-gaap |
Payments of Debt Restructuring Costs |
The cash outflow for cost incurred in the modification of term of existing debt agreement in order for the entity to achieve some advantage. |
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 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 Businesses, Net of Cash Acquired |
The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. |
View
|
us-gaap |
Payments to Noncontrolling Interests |
Amount of cash outflow to a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest. |
View
|
us-gaap |
Payment for Pension and Other Postretirement Benefits |
Amount of cash outflow for pension and other postretirement benefits. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree. |
View
|
us-gaap |
Pension and Other Postretirement Benefits Cost (Reversal of Cost) |
Amount of cost (reversal of cost) for pension and other postretirement benefits. |
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 |
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 |
Preferred Stock Redemption Premium |
The excess of (1) fair value of the consideration transferred to the holders of the preferred stock over (2) the carrying amount of the preferred stock in the registrant's balance sheet, during the accounting period. |
View
|
us-gaap |
Prepaid Taxes |
Amount of asset related to consideration paid in advance for income and other taxes that provide economic benefits within a future period of one year or the normal operating cycle, if longer. |
View
|
us-gaap |
Proceeds from Divestiture of Businesses |
The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. |
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 |
Proceeds from (Payments for) Other Financing Activities |
Amount of cash inflow (outflow) from financing activities classified as other. |
View
|
us-gaap |
Proceeds from (Repayments of) Notes Payable |
Amount of cash inflow (outflow) from long-term debt supported by a written promise to pay an obligation. |
View
|
us-gaap |
Proceeds from Sale of Productive Assets |
The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets. |
View
|
us-gaap |
Proceeds from Stock Options Exercised |
Amount of cash inflow from exercise of option under share-based payment arrangement. |
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, 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, Other, Gross |
Amount before accumulated depreciation, depletion and amortization of other physical assets used in the normal conduct of business to produce goods and services and not intended for resale. |
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, Property, Plant and Equipment, Distribution |
Period end amount of property, plant and equipment (PPE) related to utility distribution. |
View
|
us-gaap |
Public Utilities, Property, Plant and Equipment, Net |
Period end amount of total net PPE. |
View
|
us-gaap |
Public Utilities, Property, Plant and Equipment, Transmission |
Period end amount of property, plant and equipment (PPE) related to utility transmission owned by public utility. |
View
|
us-gaap |
Receivables, Long-term Contracts or Programs |
Amount to be collected within one year of the balance sheet date (or one operating cycle, if longer) from customers in accordance with the contractual provisions of long-term contracts or programs including amounts billed and unbilled as of the balance sheet date. |
View
|
us-gaap |
Recognition of Deferred Revenue |
The amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. For cash flows, this element primarily pertains to amortization of deferred credits on long-term arrangements. As a noncash item, it is deducted from net income when calculating cash provided by or used in operations using the indirect method. |
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 Capital Lease Obligations |
The cash outflow for the obligation for a lease meeting the criteria for capitalization (with maturities exceeding one year or beyond the operating cycle of the entity, if longer). |
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 Notes Payable |
The cash outflow for a borrowing supported by a written promise to pay an obligation. |
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 |
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 |
Share-based Payment Arrangement, Noncash Expense |
Amount of noncash expense for share-based payment arrangement. |
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 |
Stockholders' Equity, Other |
This element represents movements included in the statement of changes in stockholders' equity which are not separately disclosed or provided for elsewhere in the taxonomy. |
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, Restricted Stock Award, Gross |
Aggregate value of stock related to Restricted Stock Awards issued during the period. |
View
|
us-gaap |
Stock Issued During Period, Value, Stock Options Exercised |
Value of stock issued as a result of the exercise of stock options. |
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 |
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 |
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 |
Treasury Stock, Shares |
Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. |
View
|
us-gaap |
Treasury Stock, Shares, Acquired |
Number of shares that have been repurchased during the period and are being held in treasury. |
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 |
Utilities Operating Expense, Maintenance and Operations |
Amount of operating expense for routine plant maintenance, repairs and operations of regulated operation. |
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
|