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. |
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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. |
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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. |
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us-gaap |
SEC Schedule, 12-04, Cash Dividends Paid to Registrant, Consolidated Subsidiaries |
This element represents disclosure of the aggregate cash dividends paid to the entity by consolidated subsidiaries. |
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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. |
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us-gaap |
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits |
Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from employee benefits, classified as other. |
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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. |
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us-gaap |
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit) (Deprecated 2013-01-31) |
The amounts in accumulated other comprehensive income related to prior service cost or credit expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented. |
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us-gaap |
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) |
Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan. |
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us-gaap |
Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year (Deprecated 2013-01-31) |
The aggregate amount in accumulated other comprehensive income expected to be recognized as a component of net periodic benefit cost over the fiscal year that follows the most recent annual statement of financial position presented, including the net gain (loss), net prior service cost or credit, and net transition asset or obligation. |
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us-gaap |
Defined Benefit Plan, Amount to be Amortized from Accumulated Other Comprehensive Income (Loss) Next Fiscal Year (Deprecated 2017-01-31) |
Amount included in accumulated other comprehensive income (AOCI) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position, including gain (loss), prior service cost (credit), and transition asset (obligation). |
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us-gaap |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate |
Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan. |
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us-gaap |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets |
Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan. |
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us-gaap |
Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation |
Amount of decrease in accumulated postretirement benefit obligation from one-percentage-point decrease in assumed health care cost trend rate. |
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us-gaap |
Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components |
Amount of decrease in service and interest cost components of net periodic postretirement benefit cost from one-percentage-point decrease in assumed health care cost trend rate. |
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us-gaap |
Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation |
Amount of increase in accumulated postretirement benefit obligation from one-percentage-point increase in assumed health care cost trend rate. |
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us-gaap |
Defined Benefit Plan, Effect of One Percentage Point Increase on Service and Interest Cost Components |
Amount of increase in service and interest cost components of net periodic postretirement benefit cost from one-percentage-point increase in assumed health care cost trend rate. |
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us-gaap |
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year (Deprecated 2013-01-31) |
The employer's best estimate, as soon as it can be reasonably determined, of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions. |
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us-gaap |
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year |
Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year. |
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us-gaap |
Defined Benefit Plan, Expected Return (Loss) on Plan Assets |
Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. |
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us-gaap |
Defined Benefit Plan, Plan Assets, Amount |
Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. |
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us-gaap |
Defined Benefit Plan, Future Amortization of Gain (Loss) (Deprecated 2017-01-31) |
Amount included in accumulated other comprehensive income (AOCI) related to gain (loss) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position. |
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us-gaap |
Defined Benefit Plan, Future Amortization of Prior Service Cost (Credit) (Deprecated 2017-01-31) |
Amount included in accumulated other comprehensive income (AOCI) related to prior service cost (credit) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position. |
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us-gaap |
Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year (Deprecated 2017-01-31) |
The assumed health care cost trend rate for the next year used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population by age and dependency status. |
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us-gaap |
Defined Benefit Plan, Interest Cost |
Amount of cost recognized for passage of time related to defined benefit plan. |
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us-gaap |
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay |
Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. |
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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. |
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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. |
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us-gaap |
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |
Amount of unrealized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3) and still held. |
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us-gaap |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings (Deprecated 2012-01-31) |
This element represents total gains or losses for the period (realized and unrealized), arising from assets measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings or resulted in a change in net asset value. |
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us-gaap |
Finite-Lived Intangible Asset, Expected Amortization, Year Two |
Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized 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). |
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us-gaap |
Income (Loss) from Equity Method Investments, Net of Dividends or Distributions |
This element represents the undistributed income (or loss) of equity method investments, net of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporations; such investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities. |
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us-gaap |
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount |
Amount 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 exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority noncontrolling interest income (loss), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, increase (decrease) in enacted tax rate, prior year income taxes, increase (decrease) in deferred tax asset valuation allowance, and other adjustments. |
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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. |
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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). |
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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. |
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us-gaap |
Payment for Debt Extinguishment or Debt Prepayment Cost |
Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest. |
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us-gaap |
Payments to Acquire Assets, Investing Activities |
Aggregate cash payments for a combination of transactions that are classified as investing activities in which assets, which may include securities, other types of investments, or productive assets, are purchased from third-party sellers. This element can be used by entities to aggregate payments for all asset purchases that are classified as investing activities. |
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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. |
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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. |
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us-gaap |
Revenue from Contract with Customer, Excluding Assessed Tax |
Amount, excluding 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. |
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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. |
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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. |
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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. |
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us-gaap |
Retained Earnings (Accumulated Deficit) |
The cumulative amount of the reporting entity's undistributed earnings or deficit. |
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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. |
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us-gaap |
Accounts and Financing Receivable, after Allowance for Credit Loss |
Amount, after allowance for credit loss, of accounts and financing receivable. Includes, but is not limited to, notes and loan receivable. |
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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). |
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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. |
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us-gaap |
Accrual for Environmental Loss Contingencies |
Total costs accrued as of the balance sheet date for environmental loss contingencies. |
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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. |
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us-gaap |
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax |
Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). |
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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. |
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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. |
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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. |
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us-gaap |
Segment Reporting Information, Expenditures for Additions to Long-Lived Assets (Deprecated 2013-01-31) |
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; if the amount: (a) is included in the determination of segment assets reviewed by the chief operating decision maker or (b) is otherwise regularly provided to the chief operating decision maker, even if not included in the determination of segment assets. |
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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. |
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us-gaap |
Accounts Receivable, Allowance for Credit Loss |
Amount of allowance for credit loss on accounts receivable. |
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us-gaap |
Accounts Receivable, Allowance for Credit Loss, Current |
Amount of allowance for credit loss on accounts receivable, classified as current. |
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us-gaap |
Amortization of Debt Issuance Costs |
Amount of amortization expense attributable to debt issuance costs. |
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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. |
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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. |
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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. |
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us-gaap |
Asset Retirement Obligation, Period Increase (Decrease) |
Amount of increase (decrease) in asset retirement obligations. |
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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. |
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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. |
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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. |
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us-gaap |
Assets, Fair Value Disclosure, Recurring (Deprecated 2018-01-31) |
This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a recurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. |
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us-gaap |
Assets, Noncurrent |
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 after one year or beyond the normal operating cycle, if longer. |
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us-gaap |
Business Acquisition, Cost of Acquired Entity, Cash Paid (Deprecated 2013-01-31) |
Amount of cash paid to acquire the entity. |
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us-gaap |
Business Acquisition, Purchase Price Allocation, Goodwill Amount (Deprecated 2013-01-31) |
Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed. |
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us-gaap |
Business Acquisition, Goodwill, Expected Tax Deductible Amount |
The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes. |
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us-gaap |
Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment (Deprecated 2013-01-31) |
The amount of acquisition cost of a business combination allocated to property, plant and equipment to be used in ongoing operations. |
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us-gaap |
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual |
This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. |
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us-gaap |
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage |
Percentage of equity in the acquiree held by the acquirer immediately before the acquisition date in a business combination. |
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us-gaap |
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain |
In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination. |
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us-gaap |
Capital Expenditures Incurred but Not yet Paid |
Future cash outflow to pay for purchases of fixed assets that have occurred. |
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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. |
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us-gaap |
SEC Schedule, 12-04, Cash Dividends Paid to Registrant, Subsidiaries and Equity Method Investees |
This element represents disclosure of the total aggregate cash dividends paid to the entity by consolidated subsidiaries, by unconsolidated subsidiaries, and by 50% or less owned persons accounted for using the equity method. |
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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. |
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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. |
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us-gaap |
Contribution of Property |
Value of property contributed in noncash investing and financing activities. |
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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. |
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us-gaap |
Cost of Purchased Oil and Gas (Deprecated 2018-01-31) |
Cost of oil and gas purchased during the reporting period. |
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us-gaap |
Costs and Expenses |
Total costs of sales and operating expenses for the period. |
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us-gaap |
Credit Risk Derivative Assets, at Fair Value |
Fair value of credit risk derivative asset. |
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us-gaap |
Current Federal Tax Expense (Benefit) |
Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations. |
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us-gaap |
Current Income Tax Expense (Benefit) |
Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations. |
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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. |
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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. |
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us-gaap |
Debt, Current |
Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer. |
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us-gaap |
Debt Instrument, Unamortized Discount (Premium), Net |
Amount, after accumulated amortization, of debt discount (premium). |
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us-gaap |
Deferred Compensation Arrangement with Individual, Compensation Expense |
The compensation expense recognized during the period pertaining to the deferred compensation arrangement. |
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us-gaap |
Deferred Federal Income Tax Expense (Benefit) |
Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations. |
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us-gaap |
Debt Issuance Costs, Noncurrent, Net |
Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. |
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us-gaap |
Deferred Income Tax Expense (Benefit) |
Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. |
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us-gaap |
Deferred Tax Liabilities, Gross |
Amount of deferred tax liability attributable to taxable temporary differences. |
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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. |
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us-gaap |
Deferred Tax Assets, Gross, Current |
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as current. |
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us-gaap |
Deferred Tax Assets, Gross, Noncurrent |
Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences and carryforwards, classified as noncurrent. |
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us-gaap |
Deferred Tax Assets, Net, Current |
Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, netted by jurisdiction and classified as current. |
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us-gaap |
Deferred Tax Assets, Net, Noncurrent |
Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting and classified as noncurrent. |
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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. |
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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. |
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us-gaap |
Deferred Tax Assets, Other Tax Carryforwards |
Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible tax carryforwards, classified as other. |
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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. |
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us-gaap |
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits |
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from postretirement benefits. |
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us-gaap |
Deferred Tax Assets, Tax Deferred Expense, Other |
Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from provisions, reserves, allowances, and accruals, classified as other. |
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us-gaap |
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts |
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the allowance for doubtful accounts. |
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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. |
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us-gaap |
Deferred Tax Liabilities, Net |
Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting. |
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us-gaap |
Deferred Tax Liabilities, Goodwill and Intangible Assets |
Amount of deferred tax liability attributable to taxable temporary differences from intangible assets including goodwill. |
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us-gaap |
Deferred Tax Liabilities, Gross, Current |
Amount of deferred tax liability attributable to taxable temporary differences classified as current. |
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us-gaap |
Deferred Tax Liabilities, Gross, Noncurrent |
Gross amount of noncurrent deferred tax liabilities, which result from applying the applicable tax rate to taxable temporary differences pertaining to each jurisdiction to which the entity is obligated to pay income tax. |
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us-gaap |
Deferred Tax Liabilities, Investment in Noncontrolled Affiliates |
Amount of deferred tax liability attributable to taxable temporary differences from investments in unconsolidated subsidiaries and investments in other affiliates which are not controlled nor consolidated. |
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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. |
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us-gaap |
Deferred Tax Liabilities, Other |
Amount of deferred tax liability attributable to taxable temporary differences classified as other. |
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us-gaap |
Deferred Tax Liabilities, Property, Plant and Equipment |
Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. |
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us-gaap |
Deferred Tax Liabilities, Regulatory Assets and Liabilities |
Amount of deferred tax liability attributable to taxable temporary differences from regulatory assets and liabilities. |
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us-gaap |
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax |
Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). |
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us-gaap |
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), after Tax (Deprecated 2014-01-31) |
After tax total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s). |
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us-gaap |
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax |
Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. |
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us-gaap |
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax |
Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). |
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us-gaap |
Defined Benefit Plan, Amortization of Gain (Loss) |
Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. |
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us-gaap |
Defined Benefit Plan, Amortization of Net Gains (Losses) (Deprecated 2013-01-31) |
The amounts in accumulated other comprehensive income related to gains and losses that are not recognized immediately and are expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented. |
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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. |
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us-gaap |
Unregulated Operating Revenue |
The amount of unregulated operating revenues recognized during the period. |
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us-gaap |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) |
Amount of net periodic benefit cost (credit) for defined benefit plan. |
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us-gaap |
Defined Benefit Plan, Service Cost |
Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. |
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us-gaap |
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year (Deprecated 2017-01-31) |
Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. |
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us-gaap |
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate (Deprecated 2017-01-31) |
The ultimate trend rate for health care costs. |
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us-gaap |
Defined Contribution Plan, Cost |
Amount of cost for defined contribution plan. |
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us-gaap |
Utilities Operating Expense, Gas and Petroleum Purchased |
Amount of operating expense for purchased gas and petroleum of regulated operation. |
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us-gaap |
Defined Contribution Plan, Employer Matching Contribution, Percent of Match |
Percentage employer matches of the employee's percentage contribution matched. |
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us-gaap |
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent |
Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. |
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us-gaap |
Depreciation |
The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. |
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us-gaap |
Depreciation, Depletion and Amortization |
The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. |
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us-gaap |
Derivative Asset, Fair Value, Gross Liability |
Fair value of liability associated with 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. |
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us-gaap |
Derivative Asset |
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. Includes assets not subject to a master netting arrangement and not elected to be offset. |
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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. |
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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. |
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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. |
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us-gaap |
Derivative, Fair Value, Amount Offset Against Collateral, Net |
The net amount as of the balance sheet date of the fair value of derivative assets and derivative liabilities that in accordance with the entity's accounting policy were offset against collateral under a master netting arrangement. |
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us-gaap |
Derivative, Fair Value, Gross Amount Not Offset Against Collateral, Net (Deprecated 2013-01-31) |
The net amount as of the balance sheet date of the fair value of derivative assets and derivative liabilities that in accordance with the entity's accounting policy were not offset against collateral under a master netting arrangement. |
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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. |
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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. |
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us-gaap |
Derivative Liability, Fair Value, Amount Offset Against Collateral |
Fair value, after effects of master netting arrangements, of 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 offset against the right to receive collateral. Includes liabilities not subject to a master netting arrangement and not elected to be offset. |
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us-gaap |
Derivative Financial Instruments, Liabilities, Fair Value Disclosure (Deprecated 2013-01-31) |
Derivative instrument obligations meeting the definition of a liability which the Company is a party to as of the balance sheet date. |
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us-gaap |
Derivative, Gain (Loss) on Derivative, Net |
Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. |
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us-gaap |
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net |
Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. |
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us-gaap |
Derivative Liability |
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. Includes liabilities not subject to a master netting arrangement and not elected to be offset. |
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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. |
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us-gaap |
Derivative Liability, Fair Value, Gross Asset |
Fair value of asset associated with 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. |
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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. |
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us-gaap |
Due from Affiliate, Noncurrent |
Amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership, due after 1 year (or 1 business cycle). |
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us-gaap |
Due from Related Parties, Current |
The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle). |
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us-gaap |
Due to Affiliate, Current |
Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). |
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us-gaap |
Due to Affiliate |
Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership. |
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us-gaap |
Due to Related Parties, Current |
Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer). |
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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). |
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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. |
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us-gaap |
Energy Related Inventory, Natural Gas in Storage |
Carrying amount as of the balance sheet date of natural gas in storage, which is a mixture of gases (liquefied or otherwise), used for fuel and manufacturing purposes, which is ready for sale. |
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us-gaap |
Environmental Costs Recognized, Recovery Credited to Expense |
Amount of any recovery from third parties that is credited to environmental remediation costs. |
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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. |
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us-gaap |
Equity Method Investment, Summarized Financial Information, Assets (Deprecated 2020-01-31) |
The amount of assets reported by an equity method investment of the entity. |
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us-gaap |
Equity Method Investment Summarized Financial Information, Equity (Deprecated 2020-01-31) |
Amount of equity, including noncontrolling interest, reported by an equity method investment of the entity. |
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us-gaap |
Equity Method Investment, Summarized Financial Information, Noncontrolling Interest (Deprecated 2020-01-31) |
Amount of equity attributable to noncontrolling interests of an equity method investment of the entity. |
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us-gaap |
Equity Method Investments |
This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. |
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us-gaap |
Equity Method Investment, Underlying Equity in Net Assets |
This item represents the entity's ownership percentage in the investee multiplied by the investee's total equity. |
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us-gaap |
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount |
Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2. |
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us-gaap |
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount |
Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1. |
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us-gaap |
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount |
Amount of transfers of liabilities measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2. |
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us-gaap |
Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount |
Amount of transfers of liabilities measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1. |
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us-gaap |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |
Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3). |
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us-gaap |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases |
Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. |
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us-gaap |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) |
Amount of purchases, (sales), issuances and (settlements) of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. |
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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. |
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us-gaap |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings |
Amount of gain (loss) recognized in income from derivative asset (liability) after deduction of derivative liability (asset), measured at fair value on recurring basis using unobservable input (level 3). |
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us-gaap |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements |
Amount of settlements of financial instrument classified as a derivative asset (liability) after deduction of derivative liability, measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. |
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us-gaap |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers into Level 3 |
Amount of transfers of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset) into level 3 of the fair value hierarchy. |
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us-gaap |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers, Net |
Amount of transfers of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset) into (out of) level 3 of the fair value hierarchy. |
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us-gaap |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3 |
Amount of transfers of financial instrument classified as derivative asset (liability) after deduction of derivative liability (asset) out of level 3 of the fair value hierarchy. |
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us-gaap |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs |
Fair value of financial instrument classified as derivative asset (liability) after deduction of derivative liability (asset), measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. |
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us-gaap |
Finite-Lived Intangible Assets, Accumulated Amortization |
Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. |
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us-gaap |
Finite-Lived Intangible Asset, Expected Amortization, Year One |
Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized 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). |
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us-gaap |
Finite-Lived Intangible Asset, Expected Amortization, Year Five |
Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized 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). |
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us-gaap |
Finite-Lived Intangible Asset, Expected Amortization, Year Four |
Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized 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). |
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us-gaap |
Finite-Lived Intangible Asset, Expected Amortization, Year Three |
Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized 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). |
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us-gaap |
Utilities Operating Expense, Maintenance and Operations |
Amount of operating expense for routine plant maintenance, repairs and operations of regulated operation. |
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us-gaap |
Finite-Lived Intangible Assets, Gross |
Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. |
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us-gaap |
Finite-Lived Intangible Assets, Net |
Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. |
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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. |
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us-gaap |
Goodwill, Acquired During Period |
Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. |
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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. |
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us-gaap |
Goodwill, Other Changes (Deprecated 2016-01-31) |
Amount of other (increase) decrease 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. |
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us-gaap |
Goodwill, Transfers |
Amount of transfers into (out 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. |
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us-gaap |
Guarantor Obligations, Maximum Exposure, Undiscounted |
Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. |
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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. |
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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. |
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us-gaap |
Income (Loss) from Equity Method Investments |
Amount of income (loss) for proportionate share of equity method investee's income (loss). |
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us-gaap |
Income Tax Expense (Benefit) |
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. |
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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. |
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us-gaap |
Income Taxes Receivable, Current |
Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. |
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us-gaap |
Income Taxes Receivable |
Carrying amount as of the balance sheet date of income taxes previously overpaid to tax authorities (such as U.S. Federal, state and local tax authorities) representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Also called income tax refund receivable. |
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us-gaap |
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount |
The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. |
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us-gaap |
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Amount |
Amount 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 nondeductible impairment loss. |
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us-gaap |
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount |
Amount 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. |
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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. |
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us-gaap |
Interest and Debt Expense |
Interest and debt related expenses associated with nonoperating financing activities of the entity. |
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us-gaap |
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount |
Amount 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 revisions of previously reported income tax expense (benefit). |
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us-gaap |
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount |
Amount 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 state and local income tax expense (benefit). |
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us-gaap |
Increase (Decrease) in Accounts and Other Receivables |
The increase (decrease) during the reporting period in the amount due from customers for the credit sale of goods and services; includes accounts receivable and other types of receivables. |
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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. |
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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. |
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us-gaap |
Increase (Decrease) in Derivative Assets and Liabilities |
The increase (decrease) during the period in the net carrying value of derivative instruments reported as assets and liabilities that are due to be disposed of within one year (or the normal operating cycle, if longer). |
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us-gaap |
Increase (Decrease) in Income Taxes Receivable |
The increase (decrease) during the reporting period in income taxes receivable, which represents the amount due from tax authorities for refunds of overpayments or recoveries of income taxes paid. |
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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. |
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us-gaap |
Increase (Decrease) in Margin Deposits Outstanding |
The increase (decrease) during the reporting period in money or securities placed with a broker or counterparty as security for a trading or derivative position. |
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us-gaap |
Increase (Decrease) in Notes Payable, Related Parties |
The increase (decrease) during the reporting period in the amount owed by the reporting entry in the form of loans and obligations (generally evidenced by promissory notes) made by the following types of related parties: a parent company and its subsidiaries; subsidiaries of a common parent; an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management, an entity and its principal owners, management, or member of their immediate families, affiliates, or other parties with the ability to exert significant influence. |
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us-gaap |
Increase (Decrease) in Notes Payable, Related Parties, Current |
The increase (decrease) during the reporting period in the current portion (due within one year or one business cycle, whichever is longer) of the amount owed by the reporting entity in the form of loans and obligations (generally evidenced by promissory notes) made by the following types of related parties: a parent company and its subsidiaries; subsidiaries of a common parent; an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; an entity and its principal owners, management, or member of their immediate families; affiliates; or other parties with the ability to exert significant influence. |
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us-gaap |
Increase (Decrease) in Other Current Assets |
Amount of increase (decrease) in current assets classified as other. |
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us-gaap |
Increase (Decrease) in Other Current Liabilities |
Amount of increase (decrease) in current liabilities classified as other. |
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us-gaap |
Increase (Decrease) in Other Noncurrent Assets |
Amount of increase (decrease) in noncurrent assets classified as other. |
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us-gaap |
Increase (Decrease) in Other Noncurrent Liabilities |
Amount of increase (decrease) in noncurrent operating liabilities classified as other. |
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|
us-gaap |
Increase (Decrease) in Other Operating Assets |
Amount of increase (decrease) in operating assets classified as other. |
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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. |
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us-gaap |
Increase (Decrease) in Other Operating Liabilities |
Amount of increase (decrease) in operating liabilities classified as other. |
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us-gaap |
Increase (Decrease) in over (under) Energy Recovery |
The increase (decrease) during the reporting period in the value of the asset or liability created by an over or under recovery. An over under-recovery means that the basic energy price based on the daily product price and exchange rate is less (over) or more (under) than the basic energy price used in the calculation of the monthly retail energy product. |
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us-gaap |
Capitalized Interest Costs, Including Allowance for Funds Used During Construction |
Amount of interest capitalized, including amount of allowance for funds used during construction. |
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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). |
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us-gaap |
Inventory Adjustments |
Amount of inventory reserves for last-in first-out (LIFO) and other inventory valuation methods. |
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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. |
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us-gaap |
Inventory, Raw Materials and Supplies, Gross |
Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed. |
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us-gaap |
Inventory, Raw Materials and Supplies, Net of Reserves |
Aggregated amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed. This amount is net of valuation reserves and adjustments. |
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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. |
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us-gaap |
Investments, Fair Value Disclosure |
Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. |
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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. |
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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. |
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|
us-gaap |
Liabilities and Equity |
Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. |
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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. |
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us-gaap |
Liabilities, Fair Value Disclosure, Recurring (Deprecated 2018-01-31) |
Aggregation of the liabilities reported on the balance sheet measured at fair value on a recurring basis by the entity. |
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us-gaap |
Liabilities, Noncurrent |
Amount of obligation due after one year or beyond the normal operating cycle, if longer. |
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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. |
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us-gaap |
Line of Credit Facility, Increase (Decrease), Net |
Amount of increase (decrease) of the credit facility. |
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|
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. |
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|
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. |
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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. |
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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). |
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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). |
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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). |
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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). |
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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. |
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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. |
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us-gaap |
Margin Deposit Assets |
The amount of cash or securities placed with a broker or counterparty as security for a trading or derivatives securities position which was partially obtained with funds provided by the broker dealer. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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us-gaap |
Net Regulatory Assets |
The net amount of all regulatory assets less all regulatory liabilities as of the end of the period. |
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us-gaap |
Nonoperating Income (Expense) |
The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). |
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us-gaap |
Notes Receivable, Related Parties, Noncurrent |
Amounts due from parties associated with the reporting entity as evidenced by a written promise to pay, due after 1 year (or 1 business cycle). |
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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. |
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us-gaap |
Operating Income (Loss) |
The net result for the period of deducting operating expenses from operating revenues. |
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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. |
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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. |
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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. |
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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. |
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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. |
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us-gaap |
Repayments of Commercial Paper |
The cash outflow due to repaying amounts borrowed by issuing commercial paper. |
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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. |
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us-gaap |
Other Assets, Current |
Amount of current assets classified as other. |
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us-gaap |
Other Assets, Noncurrent |
Amount of noncurrent assets classified as other. |
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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. |
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us-gaap |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent |
Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan, attributable to parent. |
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us-gaap |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Attributable to Parent |
Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income for defined benefit plan, attributable to parent. |
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us-gaap |
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax |
Amount, before tax, of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan. |
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us-gaap |
Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost Recognized in Net Periodic Benefit Cost, before Tax (Deprecated 2013-01-31) |
Before tax amount of the income statement impact of the reclassification adjustment for prior service costs recognized as a component of net period benefit cost. |
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us-gaap |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax |
Amount after tax and reclassification adjustments, 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). |
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us-gaap |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax |
Amount of tax expense (benefit), after reclassification adjustments, 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). |
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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. |
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us-gaap |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax |
Amount, before tax, after reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan. |
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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. |
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us-gaap |
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax |
Amount, before 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. |
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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. |
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us-gaap |
Other Liabilities, Current |
Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer. |
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us-gaap |
Other Liabilities, Noncurrent |
Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer. |
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us-gaap |
Other Nonoperating Income (Expense) |
Amount of income (expense) related to nonoperating activities, classified as other. |
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us-gaap |
Other Operating Activities, Cash Flow Statement |
Other cash or noncash adjustments to reconcile net income to cash provided by (used in) operating activities that are not separately disclosed in the statement of cash flows (for example, cash received or cash paid during the current period for miscellaneous operating activities, net change during the reporting period in other assets or other liabilities). |
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us-gaap |
Other Tax Expense (Benefit) |
Amount of other income tax expense (benefit). |
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us-gaap |
Payments for Advance to Affiliate |
The cash outflow from advancing money to an affiliate (an entity that is related but not strictly controlled by the entity). |
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us-gaap |
Payments for (Proceeds from) Other Investing Activities |
Amount of cash (inflow) outflow from investing activities classified as other. |
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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. |
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us-gaap |
Payments of Dividends |
Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests. |
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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. |
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us-gaap |
Payments to Acquire Businesses, Gross |
The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. |
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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. |
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us-gaap |
Payments to Acquire Equity Method Investments |
The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. |
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us-gaap |
Payments to Acquire Interest in Joint Venture |
The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group. |
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us-gaap |
Payments to Acquire Interest in Subsidiaries and Affiliates |
The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity). |
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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. |
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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. |
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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. |
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us-gaap |
Pension Cost (Reversal of Cost) |
Amount of cost (reversal of cost) for pension benefits. Excludes other postretirement benefits. |
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us-gaap |
Postemployment Benefits Liability |
The carrying amount as of the balance sheet date of the obligations recognized for the various benefits provided to former or inactive employees, their beneficiaries, and covered dependents after employment but before retirement. |
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us-gaap |
Postemployment Benefits Liability, Noncurrent |
For a classified balance sheet, the carrying amount as of the balance sheet date of the portion of the obligations recognized for the various benefits provided to former or inactive employees, their beneficiaries, and covered dependents after employment but before retirement that is payable after one year (or beyond the operating cycle if longer). |
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us-gaap |
Postemployment Benefits, Period Expense |
Period expense related to postemployment benefits. |
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us-gaap |
Prepaid Expense and Other Assets, Current |
Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer. |
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us-gaap |
Proceeds from Contributions from Parent |
The cash inflow from parent as a source of financing that is recorded as additional paid in capital. |
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us-gaap |
Proceeds from Equity Method Investment, Distribution, Return of Capital |
Amount of distribution received from equity method investee for return of investment, classified as investing activities. Excludes distribution for return on investment, classified as operating activities. |
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us-gaap |
Proceeds from Issuance of Commercial Paper |
The cash inflow from borrowing by issuing commercial paper. |
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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. |
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us-gaap |
Proceeds from (Payments for) Other Financing Activities |
Amount of cash inflow (outflow) from financing activities classified as other. |
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us-gaap |
Proceeds from (Repayments of) Commercial Paper |
The net cash inflow or cash outflow from issuing (borrowing) and repaying commercial paper. |
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us-gaap |
Proceeds from (Repayments of) Lines of Credit |
The net cash inflow or cash outflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets). |
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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. |
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us-gaap |
Accounts Receivable, Credit Loss Expense (Reversal) |
Amount of expense (reversal of expense) for expected credit loss on accounts receivable. |
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us-gaap |
Allowance for Funds Used During Construction, Capitalized Interest |
Amount capitalized of allowance for funds used during construction. |
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us-gaap |
Public Utilities, Inventory |
The period end amount for a type of inventory held by the utility in a schedule of inventories. |
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us-gaap |
Recorded Third-Party Environmental Recoveries, Amount |
Recorded amount of the individual components comprising the asset for third-party recoveries related to environmental remediation obligations. |
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us-gaap |
Recorded Unconditional Purchase Obligation, to be Paid, after Year Five |
Amount of recorded unconditional purchase obligation 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). |
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us-gaap |
Recorded Unconditional Purchase Obligation, to be Paid, Year Five |
Amount of recorded 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). |
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us-gaap |
Recorded Unconditional Purchase Obligation, to be Paid, Year Four |
Amount of recorded 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). |
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us-gaap |
Recorded Unconditional Purchase Obligation, to be Paid, Remainder of Fiscal Year |
Amount of recorded unconditional purchase obligation to be paid in remainder of current fiscal year. |
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us-gaap |
Recorded Unconditional Purchase Obligation, to be Paid, Year Two |
Amount of recorded 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). |
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us-gaap |
Recorded Unconditional Purchase Obligation, to be Paid, Year Three |
Amount of recorded 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). |
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us-gaap |
Recorded Unconditional Purchase Obligation, to be Paid, Year One |
Amount of recorded 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). |
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us-gaap |
Regulated Operating Revenue, Gas |
The amount of regulated gas operating revenues recognized during the period. |
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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. |
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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. |
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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. |
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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. |
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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. |
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us-gaap |
Related Party Transaction, Amounts of Transaction |
Amount of transactions with related party during the financial reporting period. |
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us-gaap |
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party |
Amount of selling, general and administrative expenses resulting from transactions, excluding transactions that are eliminated in consolidated or combined financial statements, with related party. |
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us-gaap |
Repayment of Notes Receivable from Related Parties |
The cash inflow from a loan, supported by a promissory note, granted to related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. |
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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). |
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us-gaap |
Revenue from External Customers (Deprecated 2013-01-31) |
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. |
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us-gaap |
Segment Reporting Information, Intersegment Revenue (Deprecated 2013-01-31) |
Amount of revenue from transactions with other operating segments of the same entity. |
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us-gaap |
Sales Revenue from Energy Commodities and Services (Deprecated 2018-01-31) |
Revenue derived from energy-related services such supplying various forms of energy (such as steam, electricity and chilled water from the operation of on-site facilities or cogeneration plants), procurement services provided to energy purchasers, and the marketing and trading of energy commodities and derivatives. |
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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. |
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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. |
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us-gaap |
Tax Adjustments, Settlements, and Unusual Provisions |
Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement. |
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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. |
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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). |
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us-gaap |
Transfer from Investments |
Value of investments transferred from the entity's investments in noncash transactions. |
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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. |
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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. |
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us-gaap |
Unrealized Gain (Loss) on Commodity Contracts |
The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open agreements to purchase or sell mineral resources, energy, and agricultural products at some future point held at each balance sheet date, that was included in earnings for the period. |
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us-gaap |
Unrecognized Tax Benefits |
Amount of unrecognized tax benefits. |
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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. |
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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. |
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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. |
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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. |
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us-gaap |
Unrecognized Tax Benefits, Increase Resulting from Settlements with Taxing Authorities |
Amount of increase in unrecognized tax benefits resulting from settlements with taxing authorities. |
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us-gaap |
Unrecognized Tax Benefits, Interest on Income Taxes Accrued |
Amount of interest expense accrued for an underpayment of income taxes. |
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us-gaap |
Unrecognized Tax Benefits, Interest on Income Taxes Expense |
Amount of interest expense for an underpayment of income taxes. |
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us-gaap |
Valuation Allowance, Amount (Deprecated 2013-01-31) |
The amount of the valuation allowance recorded as of the balance sheet date pertaining to the specified deferred tax asset for which an assessment was made that it is more likely than not that all or a portion of such deferred tax asset will not be realized through related deductions on future tax returns. |
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