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Company Name: UIL HOLDINGS CORP

CIK: 1082510

Phone: None

Fiscal Year End: None

Entity Type:

SIC: -

Category Type:

Entity Name: None

First Filing Date: 2010-08-04

Last Filing Date: 2015-11-02

SEC Filings

Start	End	Frame	Filed	ACCN	Value	View

	2012-06-30	None	2013-09-10	0001140361-13-035546	$ 1,791,227,691	View
2013-01-01	2013-03-31	CY2012Q1	2013-05-02	0001140361-13-018396	$ 50,888,000	View
2015-04-01	2015-06-30	CY2015Q2	2015-08-05	0001140361-15-029981	$ 56,950,000	View
2010-03-31	2010-06-30	CY2010Q2	2010-08-04	0001082510-10-000063	$ 30,093,000	View
2010-06-30	2010-09-30	CY2009Q3	2010-10-29	0001082510-10-000085	$ 32,176,000	View
2010-01-01	2010-12-31	CY2008	2011-02-22	0001082510-11-000017	$ 35,722,000	View
2011-01-01	2011-03-31	CY2010Q1	2011-05-03	0001082510-11-000042	$ 50,518,000	View
2011-04-01	2011-06-30	CY2010Q2	2011-08-04	0001082510-11-000082	$ 50,628,000	View
2011-07-01	2011-09-30	CY2010Q3	2011-11-03	0001140361-11-051648	$ 50,643,000	View
2011-01-01	2011-12-31	CY2009	2012-02-22	0001140361-12-010112	$ 50,609,000	View
2012-01-01	2012-03-31	CY2011Q1	2012-05-03	0001140361-12-022773	$ 50,686,000	View
2012-04-01	2012-06-30	CY2011Q2	2012-08-03	0001140361-12-035080	$ 50,793	View
2012-07-01	2012-09-30	CY2011Q3	2012-11-05	0001140361-12-045638	$ 50,799,000	View
2012-01-01	2012-12-31	CY2010	2013-09-25	0001140361-13-036937	$ 50,831,000	View
2012-01-01	2012-12-31	CY2010	2013-02-21	0001140361-13-008696	$ 50,831,000	View
2013-04-01	2013-06-30	CY2012Q2	2013-08-06	0001140361-13-030592	$ 50,972,000	View
2013-07-01	2013-09-30	CY2012Q3	2013-11-04	0001140361-13-040474	$ 50,989,000	View
2013-01-01	2013-12-31	CY2011	2014-02-20	0001140361-14-008816	$ 52,415,000	View
2014-01-01	2014-03-31	CY2013Q1	2014-05-07	0001140361-14-019390	$ 56,779,000	View
2014-04-01	2014-06-30	CY2013Q2	2014-08-06	0001140361-14-031077	$ 56,842,000	View
2014-07-01	2014-09-30	CY2013Q3	2014-11-04	0001140361-14-040106	$ 56,855,000	View
2014-01-01	2014-12-31	CY2014	2015-02-26	0001140361-15-009017	$ 56,834,000	View
2015-01-01	2015-03-31	CY2015Q1	2015-04-30	0001140361-15-017078	$ 56,881,000	View
2015-07-01	2015-09-30	CY2015Q3	2015-11-02	0001140361-15-039262	$ 57,150,000	View

SEC Facts By Type

Type	Name	Description	View

us-gaap	Common Stock, Dividends, Per Share, Declared	Aggregate dividends declared during the period for each share of common stock outstanding.	View
us-gaap	Common Stock, No Par Value	Face amount per share of no-par value common stock.	View
us-gaap	Common Stock, Shares Authorized	The maximum number of common shares permitted to be issued by an entity's charter and bylaws.	View
dei	Entity Common Stock, Shares Outstanding	Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.	View
us-gaap	Accounts Payable	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.	View
us-gaap	Accrued Income Taxes, Current	Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.	View
us-gaap	Accrued Liabilities, Current	Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).	View
us-gaap	Accrued Liabilities	Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities.	View
us-gaap	Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.	View
us-gaap	Increase (Decrease) in Fuel Inventories	The increase (decrease) during the reporting period in the value of fuel held in inventory.	View
us-gaap	Additional Collateral, Aggregate Fair Value	The aggregate fair value of additional assets that would be required to be posted as collateral for derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period.	View
us-gaap	Additional Paid in Capital, Common Stock	Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.	View
us-gaap	Amortization	The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.	View
us-gaap	Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities, Other (Deprecated 2011-01-31)	Transactions that do not result in cash inflows or outflows in the period in which they occur, but affect net income and thus are removed when calculating net cash flow from operating activities using the indirect cash flow method. This element is used when there is not a more specific and appropriate element.	View
us-gaap	Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities	The sum of adjustments which are added to or deducted from net income or loss, including the portion attributable to noncontrolling interest, to reflect cash provided by or used in operating activities, in accordance with the indirect cash flow method.	View
us-gaap	Share-based Payment Arrangement, Expense	Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.	View
us-gaap	Accounts Receivable, Allowance for Credit Loss, Current	Amount of allowance for credit loss on accounts receivable, classified as current.	View
us-gaap	Amortization of Deferred Charges	The amount of amortization of deferred charges applied against earnings during the period.	View
us-gaap	Amortization of Intangible Assets	The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.	View
us-gaap	Amortization of Regulatory Asset	The expense charged against earnings during the period to allocate the capitalized costs of regulatory assets over the periods expected to benefit from such costs.	View
us-gaap	Asset Retirement Obligation, Liabilities Incurred	Amount of asset retirement obligations incurred during the period.	View
us-gaap	Assets, Current	Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.	View
us-gaap	Assets, Fair Value Disclosure	Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.	View
us-gaap	Common Stock, Value, Issued	Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.	View
us-gaap	Business Acquisition, Cost of Acquired Entity, Purchase Price (Deprecated 2013-01-31)	The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.	View
us-gaap	Business Acquisition, Pro Forma Earnings Per Share, Basic	The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.	View
us-gaap	Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net (Deprecated 2013-01-31)	The total purchase price of the acquired entity. This includes cash paid to equity interest holders of the acquired entity, fair value of debt and equity securities issued to equity holders of the acquired entity, and transaction costs paid to third parties to consummate the acquisition.	View
us-gaap	Business Acquisition, Purchase Price Allocation, Current Assets (Deprecated 2013-01-31)	The amount of acquisition cost of a business combination allocated to current assets.	View
us-gaap	Business Acquisition, Purchase Price Allocation, Noncurrent Assets (Deprecated 2013-01-31)	The amount of acquisition cost of a business combination allocated to noncurrent assets.	View
us-gaap	Capitalization, Long-term Debt and Equity	This element represents the total consolidated (as applicable) capitalization of the entity which is comprised of its long-term debt and equity instruments. The table may be detailed by subsidiary (legal entity) and include information by type of debt or equity detailed by instrument.	View
us-gaap	Cash and Cash Equivalents, at Carrying Value	Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.	View
us-gaap	Cash and Cash Equivalents, Period Increase (Decrease)	Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.	View
us-gaap	Cash Surrender Value, Fair Value Disclosure	Fair value portion of the amount that could be realized under a life insurance contract or contracts owned by the entity, commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).	View
us-gaap	Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.	View
us-gaap	Construction in Progress, Gross	Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.	View
us-gaap	Cost of Natural Gas Purchases (Deprecated 2018-01-31)	Cost of natural gas purchased and associated transportation and storage costs during the period.	View
us-gaap	Cost of Purchased Oil and Gas (Deprecated 2018-01-31)	Cost of oil and gas purchased during the reporting period.	View
us-gaap	Cost of Purchased Power (Deprecated 2018-01-31)	Cost of electricity purchased as well as fuel used to generate electricity used in operations and sold during the reporting period.	View
us-gaap	Cost of Transmission, Other (Deprecated 2016-01-31)	Cost incurred for transmission operations and maintenance by total kilowatt-hours paid to sources other than affiliates.	View
us-gaap	Current Federal Tax Expense (Benefit)	Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.	View
us-gaap	Current Income Tax Expense (Benefit)	Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.	View
us-gaap	Current State and Local Tax Expense (Benefit)	Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.	View
us-gaap	Debt Instrument, Face Amount	Face (par) amount of debt instrument at time of issuance.	View
us-gaap	Deferred Federal Income Tax Expense (Benefit)	Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.	View
us-gaap	Deferred Income Tax Expense (Benefit)	Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.	View
us-gaap	Deferred Long-term Liability Charges	The total amount of long-term liability charges that are being deferred beyond one year.	View
us-gaap	Deferred Purchased Power Costs	Costs of power used for operations in prior periods that were expected to be recovered from customers in future periods.	View
us-gaap	Deferred State and Local Income Tax Expense (Benefit)	Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.	View
us-gaap	Deferred Tax Assets, Equity Method Investments	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from equity method investments.	View
us-gaap	Deferred Tax Assets, Gross	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.	View
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.	View
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.	View
us-gaap	Deferred Tax Assets, Net of Valuation Allowance, Current	Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as current.	View
us-gaap	Deferred Tax Assets, Operating Loss Carryforwards	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.	View
us-gaap	Deferred Tax Assets, Other	Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.	View
us-gaap	Deferred Tax Assets, Regulatory Assets and Liabilities	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences derived regulatory assets and liabilities.	View
us-gaap	Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible alternative minimum tax credit carryforwards.	View
us-gaap	Stock Issued During Period, Value, Employee Stock Purchase Plan	Aggregate change in value for stock issued during the period as a result of employee stock purchase plan.	View
us-gaap	Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Bonuses	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from employee bonuses.	View
us-gaap	Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from employee compensation.	View
us-gaap	Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Other	Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from compensation and benefits, classified as other.	View
us-gaap	Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from pension benefits.	View
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.	View
us-gaap	Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.	View
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.	View
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.	View
us-gaap	Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Asset Retirement Obligations	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from asset retirement obligations. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset.	View
us-gaap	Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Contingencies	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from contingent liabilities.	View
us-gaap	Deferred Tax Liabilities, Net	Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.	View
us-gaap	Deferred Tax Liabilities, Net, Current	Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as current.	View
us-gaap	Deferred Tax Liabilities, Financing Arrangements	Amount of deferred tax liability attributable to taxable temporary differences from financing arrangements.	View
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.	View
us-gaap	Deferred Tax Liabilities, Leasing Arrangements	Amount of deferred tax liability attributable to taxable temporary differences from leasing arrangements.	View
us-gaap	Deferred Tax Liabilities, Net, Noncurrent	Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as noncurrent.	View
us-gaap	Deferred Tax Liabilities, Other	Amount of deferred tax liability attributable to taxable temporary differences classified as other.	View
us-gaap	Deferred Tax Liabilities, Other Finite-Lived Assets	Amount of deferred tax liability attributable to taxable temporary differences from long-lived assets other than property, plant, and equipment.	View
us-gaap	Deferred Tax Liabilities, Property, Plant and Equipment	Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.	View
us-gaap	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.	View
us-gaap	Defined Benefit Plan, Estimated Future Employer Contributions in Current 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 in the current remaining fiscal period. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions.	View
us-gaap	Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.	View
us-gaap	Defined Benefit Plan, Expected Future Benefit Payment, Year One	Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.	View
us-gaap	Defined Benefit Plan, Expected Future Benefit Payment, Year Five	Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.	View
us-gaap	Defined Benefit Plan, Expected Future Benefit Payment, Year Four	Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.	View
us-gaap	Defined Benefit Plan, Expected Future Benefit Payment, Year Three	Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.	View
us-gaap	Defined Benefit Plan, Expected Future Benefit Payment, Year Two	Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.	View
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.	View
us-gaap	Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year (Deprecated 2017-01-31)	Amount of employer's best estimate of contributions expected to be paid to the plan in the current remaining fiscal period.	View
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.	View
us-gaap	Defined Benefit Plan, Target Allocation Percentage of Assets, Debt Securities (Deprecated 2012-01-31)	Target allocation percentage of investments in debt securities to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.	View
us-gaap	Defined Benefit Plan, Target Allocation Percentage of Assets, Equity Securities (Deprecated 2012-01-31)	Target allocation percentage of investments in equity securities to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.	View
us-gaap	Defined Benefit Plan, Target Allocation Percentage of Assets, Other (Deprecated 2012-01-31)	Target allocation percentage in other than debt securities, equity securities, and real estate to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.	View
us-gaap	Defined Contribution Plan, Cost	Amount of cost for defined contribution plan.	View
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.	View
us-gaap	Depreciation, Depletion and Amortization, Nonproduction	The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.	View
us-gaap	Depreciation, Nonproduction	The expense recognized in the current period that allocates the cost of nonproduction tangible assets over their useful lives.	View
us-gaap	Derivative Asset, Not Subject to Master Netting Arrangement Deduction	Fair value of 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, not subject to a master netting arrangement, deducted from derivative assets.	View
us-gaap	Payments to Acquire Businesses, Net of Cash Acquired	The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.	View
us-gaap	Derivative Asset, Fair Value, Gross Asset	Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.	View
us-gaap	Derivative Liability, Fair Value, Gross Liability	Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.	View
us-gaap	Derivative 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.	View
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.	View
us-gaap	Derivative Liability, Current	Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.	View
us-gaap	Derivative Liability, Noncurrent	Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.	View
us-gaap	Derivative Liability, Not Subject to Master Netting Arrangement	Fair value 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, not subject to a master netting arrangement.	View
us-gaap	Derivative, Number of Instruments Held	The number of derivative instruments of a particular group held by the entity.	View
us-gaap	Dividends, Common Stock, Cash	Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.	View
us-gaap	Dividends Payable, Current	Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).	View
us-gaap	Dividends Payable	Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.	View
us-gaap	Earnings Per Share, Basic	The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.	View
us-gaap	Earnings Per Share, Diluted	The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.	View
us-gaap	Effective Income Tax Rate Reconciliation, Percent	Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.	View
us-gaap	Electrical Transmission and Distribution Revenue (Deprecated 2018-01-31)	Revenue from (1) electrical transmission, which is the bulk transport of high voltage power, typically over longer distances, between generating plants and distribution systems, and (2) electrical distribution, which is the delivery of electricity to a retail customer's home or business through distribution wires or facilities of regulated public utilities.	View
us-gaap	Electric Revenue (Deprecated 2018-01-31)	The aggregate revenue, whether regulated or unregulated, derived from the generation, transmission and distribution of electricity.	View
us-gaap	Employee Benefits and Share-based Compensation	Amount of expense for employee benefit and equity-based compensation.	View
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.	View
us-gaap	Equity Method Investment, Ownership Percentage	The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.	View
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.	View
us-gaap	Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings	Amount of gain (loss) recognized in income from asset and liability measured at fair value on recurring basis using unobservable input (level 3).	View
us-gaap	Fair Value, Assets Measured on Recurring Basis, Gain (Loss) Included in Other Income (Deprecated 2013-01-31)	This item represents the amount of the total realized and unrealized gains or losses for the period which are included in the statement of income (or changes in net assets) in other income; the fair value of which assets was or is measured on a recurring basis using significant unobservable inputs (Level 3).	View
us-gaap	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset and Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) (Deprecated 2012-01-31)	This element represents total gains (losses) for the period (realized and unrealized), arising from assets and liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in other comprehensive income (a separate component of shareholders' equity).	View
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).	View
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.	View
us-gaap	Income (Loss) from Equity Method Investments	Amount of income (loss) for proportionate share of equity method investee's income (loss).	View
us-gaap	Regulated and Unregulated Operating Revenue	The total amount of operating revenues recognized during the period.	View
us-gaap	Income Tax Expense (Benefit)	Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.	View
us-gaap	Income Taxes Paid, Net	The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.	View
us-gaap	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.	View
us-gaap	Effective Income Tax Rate Reconciliation, Deduction, Employee Stock Ownership Plan Dividend, 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 deduction for dividend paid to employee stock ownership plan.	View
us-gaap	Effective Income Tax Rate Reconciliation, Deduction, Other, 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 deductions.	View
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.	View
us-gaap	Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amortization, 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 amortization.	View
us-gaap	Effective Income Tax Rate Reconciliation, Nondeductible Expense, Depreciation, 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 depreciation.	View
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.	View
us-gaap	Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, 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 nondeductible expenses.	View
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.	View
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).	View
us-gaap	Effective Income Tax Rate Reconciliation, Tax Credit, 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 credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.	View
us-gaap	Effective Income Tax Rate Reconciliation, Tax Credit, Investment, 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 investment tax credit.	View
us-gaap	Increase (Decrease) in Accounts Payable, Trade	Change in recurring obligations of a business that arise from the acquisition of merchandise, materials, supplies and services used in the production and sale of goods and services.	View
us-gaap	Increase (Decrease) in Accounts Receivable	The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.	View
us-gaap	Increase (Decrease) in Income Taxes Payable	The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction.	View
us-gaap	Increase (Decrease) in Accrued Liabilities	The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid.	View
us-gaap	Increase (Decrease) in Book Overdrafts	The increase (decrease) in cash during the period due to the net increase or decrease in book overdrafts.	View
us-gaap	Increase (Decrease) in Interest Payable, Net	The increase (decrease) during the reporting period in interest payable, which represents the amount owed to note holders, bond holders, and other parties for interest earned on loans or credit extended to the reporting entity.	View
us-gaap	Increase (Decrease) in Other Employee-Related Liabilities	Amount of increase (decrease) in employer-related costs classified as other and current.	View
us-gaap	Increase (Decrease) in Obligation, Pension Benefits	Amount of increase (decrease) in obligation for pension benefits. Includes, but is not limited to, defined benefit or defined contribution plans. Excludes other postretirement benefits.	View
us-gaap	Increase (Decrease) in Obligation, Other Postretirement Benefits	Amount of increase (decrease) in obligation for other postretirement benefits. Includes, but is not limited to, defined benefit and defined contribution plans. Excludes pension benefits.	View
us-gaap	Increase (Decrease) in Prepaid Expense	The increase (decrease) during the reporting period in the amount of outstanding money paid in advance for goods or services that bring economic benefits for future periods.	View
us-gaap	Increase (Decrease) in Regulatory Assets and Liabilities	The increase (decrease) during the reporting period in the value of assets that are created when regulatory agencies permits public utilities to defer costs (revenues) to the balance sheet. This element is a the increase (decrease) of regulatory assets and liabilities combined.	View
us-gaap	Increase (Decrease) in Restricted Cash	The net cash inflow or outflow for the increase (decrease) associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities.	View
us-gaap	Increase (Decrease) in Unbilled Receivables	The increase (decrease) during the reporting period of the amount of revenue for work performed for which billing has not occurred, net of uncollectible accounts.	View
us-gaap	Interest and Debt Expense	Interest and debt related expenses associated with nonoperating financing activities of the entity.	View
us-gaap	Interest Expense	Amount of the cost of borrowed funds accounted for as interest expense.	View
us-gaap	Interest Expense, Debt	Amount of the cost of borrowed funds accounted for as interest expense for debt.	View
us-gaap	Interest Expense, Medium-term Notes	Interest expense on medium-Term notes.	View
us-gaap	Interest Expense, Other	Amount of interest expense classified as other.	View
us-gaap	Interest Paid, Excluding Capitalized Interest, Operating Activities	Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.	View
us-gaap	Interest Payable, Current	Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).	View
us-gaap	Operating Leases, Rent Expense	Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.	View
us-gaap	Letters of Credit Outstanding, Amount	The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.	View
us-gaap	Liabilities and Equity	Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.	View
us-gaap	Liabilities, Current	Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.	View
us-gaap	Financial and Nonfinancial Liabilities, Fair Value Disclosure	Fair value of financial and nonfinancial obligations.	View
us-gaap	Liabilities, Noncurrent	Amount of obligation due after one year or beyond the normal operating cycle, if longer.	View
us-gaap	Line of Credit Facility, Amount Outstanding (Deprecated 2014-01-31)	Amount borrowed under the credit facility as of the balance sheet date.	View
us-gaap	Regulatory Assets	The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period.	View
us-gaap	Line of Credit Facility, Maximum Borrowing Capacity	Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.	View
us-gaap	Long-term Debt	Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.	View
us-gaap	Long-term Debt and Lease Obligation	Amount of long-term debt and lease obligation, classified as noncurrent.	View
us-gaap	Long-term Debt, Current Maturities	Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.	View
us-gaap	Long-term Debt, Fair Value	The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.	View
us-gaap	Long-Term Debt, Maturity, after Year Five	Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).	View
us-gaap	Long-Term Debt, Maturity, Year One	Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).	View
us-gaap	Long-Term Debt, Maturity, Year Four	Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).	View
us-gaap	Long-Term Debt, Maturity, Year Three	Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).	View
us-gaap	Long-Term Debt, Maturity, Year Two	Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).	View
us-gaap	Long-term Debt, Excluding Current Maturities	Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.	View
us-gaap	Long-term Investments	The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).	View
us-gaap	Long-term Investments and Receivables, Net	The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle) and amount due to the Entity from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such investments and receivables to an amount that approximates their net realizable value.	View
us-gaap	Loss Contingency, Range of Possible Loss, Minimum (Deprecated 2016-01-31)	The estimated minimum amount of possible loss from the contingency.	View
us-gaap	Stockholders' Equity Attributable to Noncontrolling Interest	Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).	View
us-gaap	Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders (Deprecated 2013-01-31)	Amount of net Income or Loss for the period allocated to noncontrolling preferred unit holders in an entity included in the reporting entity's consolidated financial statements.	View
us-gaap	Net Cash Provided by (Used in) Financing Activities	Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.	View
us-gaap	Net Cash Provided by (Used in) Financing Activities, Continuing Operations	Amount of cash inflow (outflow) of financing activities, excluding discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.	View
us-gaap	Net Cash Provided by (Used in) Investing Activities	Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.	View
us-gaap	Net Cash Provided by (Used in) Investing Activities, Continuing Operations	Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.	View
us-gaap	Net Income (Loss) Available to Common Stockholders, Basic	Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.	View
us-gaap	Net Regulatory Assets	The net amount of all regulatory assets less all regulatory liabilities as of the end of the period.	View
us-gaap	Noncontrolling Interest in Net Income (Loss) Other Noncontrolling Interests, Nonredeemable	Amount after tax of income (loss) attributable to other nonredeemable noncontrolling equity holder.	View
us-gaap	Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Nonredeemable	Amount after tax of income (loss) attributable to nonredeemable noncontrolling preferred unit holders.	View
us-gaap	Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable	Amount after tax of income (loss) attributable to redeemable noncontrolling preferred unit holders.	View
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).	View
us-gaap	Oil and Gas Revenue (Deprecated 2018-01-31)	Aggregate revenue during the period related to oil and gas business activities.	View
us-gaap	Operating Expenses	Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.	View
us-gaap	Operating Income (Loss)	The net result for the period of deducting operating expenses from operating revenues.	View
us-gaap	Operating Leases, Future Minimum Payments Due	Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.	View
us-gaap	Operating Leases, Future Minimum Payments Due, Next Twelve Months	Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.	View
us-gaap	Operating Leases, Future Minimum Payments, Due in Five Years	Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.	View
us-gaap	Operating Leases, Future Minimum Payments, Due in Four Years	Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.	View
us-gaap	Operating Leases, Future Minimum Payments, Due in Two Years	Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.	View
us-gaap	Operating Leases, Future Minimum Payments, Due Thereafter	Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.	View
us-gaap	Operating Leases, Income Statement, Sublease Revenue	The amount of revenue recognized for the period under subleasing arrangements.	View
us-gaap	Operating Loss Carryforwards	Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.	View
us-gaap	Other Assets, Current	Amount of current assets classified as other.	View
us-gaap	Other Assets, Noncurrent	Amount of noncurrent assets classified as other.	View
us-gaap	Other 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.	View
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).	View
us-gaap	Other Labor-related Expenses	Amount of labor-related expenses classified as other.	View
us-gaap	Other Liabilities, Noncurrent	Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.	View
us-gaap	Other Long-term Investments	Amount of long-term investments classified as other.	View
us-gaap	Other Noncash Income (Expense)	Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other.	View
us-gaap	Other Noncurrent Liabilities (Deprecated 2011-01-31)	Obligations not otherwise itemized or previously categorized that are due beyond one year (or operating cycle, if longer) from the balance sheet date.	View
us-gaap	Other Nonoperating Income	Amount of income related to nonoperating activities, classified as other.	View
us-gaap	Other Nonoperating Income (Expense)	Amount of income (expense) related to nonoperating activities, classified as other.	View
us-gaap	Liability, Other Retirement Benefits	Amount of liability for retirement benefits, classified as other.	View
us-gaap	Liability, Other Retirement Benefits, Noncurrent	Amount of liability, classified as noncurrent, for retirement benefits, classified as other.	View
us-gaap	Other Receivables	Amount due from parties in nontrade transactions, classified as other.	View
us-gaap	Other Revenue, Net (Deprecated 2018-01-31)	Amount, after sales adjustments, returns, allowances, and discounts, of revenue classified as other.	View
us-gaap	Payments for (Proceeds from) Other Investing Activities	Amount of cash (inflow) outflow from investing activities classified as other.	View
us-gaap	Payments for Rent	Cash payments to lessor's for use of assets under operating leases.	View
us-gaap	Payments of Ordinary Dividends, Common Stock	Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.	View
us-gaap	Payments to Acquire 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.	View
us-gaap	Payments to Acquire Property, Plant, and Equipment	The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.	View
us-gaap	Pension and Other Postretirement Benefits Cost (Reversal of Cost)	Amount of cost (reversal of cost) for pension and other postretirement benefits.	View
us-gaap	Payment for Pension Benefits	Amount of cash outflow for pension benefit. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree. Excludes other postretirement benefit.	View
us-gaap	Preferred Stock, Shares Outstanding	Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.	View
us-gaap	Preferred Stock, Value, Issued	Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.	View
us-gaap	Prepaid Expense, Current	Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.	View
us-gaap	Proceeds from Divestiture of Interest in Joint Venture	The cash inflow from the sale of an investment interest in a joint venture that the reporting entity has not previously accounted for using consolidation or the equity method of accounting.	View
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.	View
us-gaap	Proceeds from Issuance of Common Stock	The cash inflow from the additional capital contribution to the entity.	View
us-gaap	Proceeds from Issuance of Long-term Debt	The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.	View
us-gaap	Proceeds from (Payments for) Other Financing Activities	Amount of cash inflow (outflow) from financing activities classified as other.	View
us-gaap	Proceeds from (Repayments of) Short-term Debt	The net cash inflow or outflow for borrowing having initial term of repayment within one year or the normal operating cycle, if longer.	View
us-gaap	Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.	View
us-gaap	Property, Plant and Equipment, Gross	Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.	View
us-gaap	Property, Plant and Equipment, Net	Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.	View
us-gaap	Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	The component of the allowance for funds used during construction during the period based on an assumed rate of return on equity funds used in financing the construction of regulated assets.	View
us-gaap	Allowance for Funds Used During Construction, Capitalized Interest	Amount capitalized of allowance for funds used during construction.	View
us-gaap	Public Utilities, Allowance for Funds Used During Construction, Rate	Effective rate, including composite rate, of cost of financing additions to qualifying regulated assets, commonly called allowance for funds used during construction.	View
us-gaap	Public Utilities, Property, Plant and Equipment, Accumulated Depreciation	Period end book value of accumulated depreciation on property, plant and equipment (PPE) that is owned by the regulated operations of the public utility.	View
us-gaap	Public Utilities, Property, Plant and Equipment, Construction Work in Progress	Period end amount of construction work in progress in public utility.	View
us-gaap	Public Utilities, Property, Plant and Equipment, Net	Period end amount of total net PPE.	View
us-gaap	Public Utilities, Property, Plant and Equipment, Plant in Service	Period end amount of total gross PPE.	View
us-gaap	Real Estate Tax Expense	A tax based on the assessed value of real estate by the local government. The tax is usually based on the value of property (including the land).	View
us-gaap	Regulatory Assets, Noncurrent	Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer.	View
us-gaap	Regulatory Liabilities	The amount for the individual regulatory liability as itemized in a table of regulatory liabilities as of the end of the period.	View
us-gaap	Regulatory Liability, Current	The amount for the individual regulatory current liability as itemized in a table of regulatory current liabilities as of the end of the period.	View
us-gaap	Regulatory Liability, Noncurrent	The amount for the individual regulatory noncurrent liability as itemized in a table of regulatory noncurrent liabilities as of the end of the period.	View
us-gaap	Related Party Transaction, Due from (to) Related Party	Receivables to be collected from (obligations owed to) related parties, net as of the balance sheet date 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.	View
us-gaap	Related Party Transaction, Expenses from Transactions with Related Party	Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.	View
us-gaap	Repayments of Long-term Debt	The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.	View
us-gaap	Restricted Cash and Cash Equivalents	Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.	View
us-gaap	Retained Earnings (Accumulated Deficit)	The cumulative amount of the reporting entity's undistributed earnings or deficit.	View
us-gaap	Retained Earnings, Undistributed Earnings from Equity Method Investees	Amount of consolidated retained earnings that represent undistributed (not yet received) earnings from 50% or less owned persons accounted for by the equity method (equity method investees).	View
us-gaap	Revenues	Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).	View
us-gaap	Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	Number of shares authorized for issuance under share-based payment arrangement.	View
us-gaap	Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term (Deprecated 2012-01-31)	The weighted average period between the balance sheet date and expiration for all vested portions of options outstanding and currently exercisable (or convertible) under the plan, which may be expressed in a decimal value for number of years.	View
us-gaap	Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.	View
us-gaap	Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term (Deprecated 2012-01-31)	The weighted average period between the balance sheet date and expiration for all awards outstanding under the plan, which may be expressed in a decimal value for number of years.	View
us-gaap	Short-term Debt	Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.	View
us-gaap	Stockholders' Equity Attributable to Parent	Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.	View
us-gaap	Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	Value, after forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).	View
us-gaap	Taxes, Miscellaneous	All taxes not related to income of the entity or excise or sales taxes levied on the revenue of the entity that are not reported elsewhere. These taxes could include production, real estate, personal property, and pump tax.	View
us-gaap	Taxes, Other	Amount of tax expense classified as other.	View
us-gaap	Taxes Payable, Current	Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).	View
us-gaap	Unamortized Debt Issuance Expense	The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.	View
us-gaap	Unbilled Receivables, Current	Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer.	View
us-gaap	Unrealized Gain (Loss) on Derivatives	The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.	View
us-gaap	Unrecognized Tax Benefits	Amount of unrecognized tax benefits.	View
us-gaap	Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.	View
us-gaap	Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.	View
us-gaap	Unrecognized Tax Benefits, Interest on Income Taxes Accrued	Amount of interest expense accrued for an underpayment of income taxes.	View
us-gaap	Unrecognized Tax Benefits that Would Impact Effective Tax Rate	The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.	View
us-gaap	Unsecured Long-term Debt, Noncurrent	Carrying value as of the balance sheet date of uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.	View
us-gaap	Utilities Operating Expense, Depreciation and Amortization	Amount of operating expense for depreciation and amortization of regulated operation.	View
us-gaap	Utilities Operating Expense, Maintenance and Operations	Amount of operating expense for routine plant maintenance, repairs and operations of regulated operation.	View
us-gaap	SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount	Amount of valuation and qualifying accounts and reserves.	View
us-gaap	SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense	Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense.	View
us-gaap	SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account	Amount of increase in valuation and qualifying accounts and reserves from charge to accounts other than cost and expense.	View
us-gaap	SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	Amount of decrease in valuation and qualifying accounts and reserves.	View
us-gaap	SEC Schedule, 12-09, Valuation Allowances and Reserves, Business Acquired	Amount of increase in valuation and qualifying accounts and reserves from business combination.	View
us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment	The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.	View
us-gaap	Weighted Average Number of Shares Outstanding, Diluted	The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.	View
us-gaap	Weighted Average Number of Shares Outstanding, Basic	Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.	View
dei	Entity Public Float	The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter.	View
us-gaap	Accounts Payable, Current	Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).	View
us-gaap	Accounts Receivable, after Allowance for Credit Loss, Current	Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.	View
us-gaap	Accumulated Other Comprehensive Income (Loss), Net of Tax	Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.	View
us-gaap	Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.	View
us-gaap	Asset Retirement Obligation	The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.	View
us-gaap	Asset Retirement Obligation, Accretion Expense	Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.	View
us-gaap	Asset Retirement Obligation, Liabilities Settled	Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset.	View
us-gaap	Assets	Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.	View
us-gaap	Available-for-sale Securities, Fair Value Disclosure (Deprecated 2013-01-31)	This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.	View
us-gaap	Business Acquisition, Purchase Price Allocation, Current Liabilities (Deprecated 2013-01-31)	The amount of acquisition cost of a business combination allocated to current liabilities of the acquired entity.	View
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.	View
us-gaap	Business Acquisition, Purchase Price Allocation, Noncurrent Liabilities, Long-term Debt (Deprecated 2013-01-31)	The amount of acquisition cost of a business combination allocated to the noncurrent portion of the long-term debt assumed from the acquired entity.	View
us-gaap	Business Acquisition, Purchase Price Allocation, Other Noncurrent Liabilities (Deprecated 2013-01-31)	Amount of acquisition cost of a business combination allocated to other noncurrent liabilities not separately disclosed.	View
us-gaap	Business Acquisition, Pro Forma Net Income (Loss)	The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.	View
us-gaap	Business Acquisition, Pro Forma Revenue	The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.	View
us-gaap	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	Fair value 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.	View
us-gaap	Business Combination, Acquisition Related Costs	This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.	View
us-gaap	Capital Expenditures Incurred but Not yet Paid	Future cash outflow to pay for purchases of fixed assets that have occurred.	View
us-gaap	Comprehensive Income (Loss), Net of Tax, Attributable to Parent	Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.	View
us-gaap	Debt Conversion, Original Debt, Amount	"The amount of the original debt being converted in a noncash (or part noncash) transaction. ""Part noncash"" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period."	View
us-gaap	Debt Instrument, Unamortized Discount	Amount, after accumulated amortization, of debt discount.	View
us-gaap	Debt Instrument, Unamortized Premium	Amount, after accumulated amortization, of debt premium.	View
us-gaap	Debt Related Commitment Fees and Debt Issuance Costs	Represents the charge against earnings during the period for commitment fees and debt issuance expenses.	View
us-gaap	Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Compensated Absences	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from compensated absences (includes, but not limited to, sick and personal days).	View
us-gaap	Deferred Tax Liabilities, Regulatory Assets	Amount of deferred tax liability attributable to taxable temporary differences from regulatory assets.	View
us-gaap	Liability, Defined Benefit Pension Plan, Noncurrent	Amount of liability, recognized in statement of financial position, for defined benefit pension plan, classified as noncurrent. Excludes other postretirement benefit plan.	View
us-gaap	Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)	Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.	View
us-gaap	Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation (Deprecated 2012-01-31)	The effect of a one-percentage-point decrease in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits.	View
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.	View
us-gaap	Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components (Deprecated 2012-01-31)	The effect of a one-percentage- point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs.	View
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.	View
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.	View
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.	View
us-gaap	Derivative Asset, Current	Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.	View
us-gaap	Derivative Asset, Noncurrent	Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.	View
us-gaap	Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition (Deprecated 2012-01-31)	The weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, using a decimal to express in number of years.	View
us-gaap	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.	View
us-gaap	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements	Amount of settlement 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.	View
us-gaap	Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included in Other Comprehensive Income (Loss) (Deprecated 2019-01-31)	Amount of gain (loss) recognized in other comprehensive income, arising from assets, liabilities and financial instruments classified in shareholders' equity measured at fair value on a recurring basis using unobservable inputs (level 3).	View
us-gaap	Gain Contingency, Unrecorded Amount	The amount or range of possible amounts of gain that could be realized upon the resolution of a contingency.	View
us-gaap	Gain (Loss) on Sale of Equity Investments	The difference between the carrying value and the sale price of equity securities, not separately or otherwise categorized as trading or available-for-sale. This element includes investments in which the entity holds a small ownership stake (generally, less than 20% of the shares outstanding) and cannot exert significant influence.	View
us-gaap	Gas Domestic Regulated Revenue (Deprecated 2018-01-31)	Revenue derived from the regulated (by a federal, state, or local government or agency) generation, transmission and distribution of [natural] gas.	View
us-gaap	Goodwill	Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.	View
us-gaap	Goodwill, Purchase Accounting Adjustments	Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.	View
us-gaap	Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.	View
us-gaap	Income (Loss) from 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.	View
us-gaap	Increase (Decrease) in Income Taxes	The increase (decrease) during the reporting period in the amounts payable to taxing authorities for taxes that are based on the reporting entity's earnings, net of amounts receivable from taxing authorities for refunds of overpayments or recoveries of income taxes, and in deferred and other tax liabilities and assets.	View
us-gaap	Increase (Decrease) in Other Operating Assets	Amount of increase (decrease) in operating assets classified as other.	View
us-gaap	Increase (Decrease) in Other Operating Liabilities	Amount of increase (decrease) in operating liabilities classified as other.	View
us-gaap	Interest Payable	Amount of interest payable on debt, including, but not limited to, trade payables.	View
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.	View
us-gaap	Investment Income, Interest	Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.	View
us-gaap	Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases	The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for a specific purpose other than for financing goods acquired for inventory or imminent delivery to a customer.	View
us-gaap	Line of Credit, Current	The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.	View
us-gaap	Net Income (Loss) Attributable to Noncontrolling Interest, Other (Deprecated 2013-01-31)	Amount of net income or loss for the period allocated to noncontrolling shareholders, unit holders, partners, or other equity holders in one or more of the entities consolidated into the reporting entity's financial statements other than those noncontrolling interests already defined within the taxonomy.	View
us-gaap	Net Cash Provided by (Used in) Operating Activities	Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.	View
us-gaap	Net Cash Provided by (Used in) Operating Activities, Continuing Operations	Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.	View
us-gaap	Net Income (Loss) Attributable to Parent	The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.	View
us-gaap	Operating Leases, Future Minimum Payments, Due in Three Years	Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.	View
us-gaap	Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax Effect (Deprecated 2012-01-31)	Total tax effect of the change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. The change includes an entity's share of an equity investee's increase or decrease in deferred hedging gains or losses. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.	View
us-gaap	Other Comprehensive Income (Loss), Net of Tax	Amount after tax and reclassification adjustments of other comprehensive income (loss).	View
us-gaap	Other Comprehensive Income (Loss), Net of Tax (Deprecated 2012-01-31)	This element represents Other Comprehensive Income or Loss, Net of Tax, for the period. Includes deferred gains or losses on qualifying hedges, unrealized holding gains or losses on available-for-sale securities, minimum pension liability, and cumulative translation adjustment. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.	View
us-gaap	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	Amount after tax of other comprehensive income (loss) attributable to parent entity.	View
us-gaap	Other Depreciation and Amortization	Amount of expense charged against earnings to allocate the cost of tangible and intangible assets over their remaining economic lives, classified as other.	View
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.	View
us-gaap	Proceeds from Collection of (Payments to Fund) Long-term Loans to Related Parties	The cash inflow or outflow associated with long-term loans for 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. Alternate caption: Proceeds from (Payments for) Advances to Affiliates.	View
us-gaap	Regulatory Assets, Current	Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are expected to be recovered through revenue sources within one year or the normal operating cycle, if longer. Such costs are capitalized if they meet both of the following criteria: a. It is probable that future revenue in an amount at least equal to the capitalized cost will result from inclusion of that cost in allowable costs for rate-making purposes. b. Based on available evidence, the future revenue will be provided to permit recovery of the previously incurred cost rather than to provide for expected levels of similar future costs. If the revenue will be provided through an automatic rate-adjustment clause, this criterion requires that the regulator's intent clearly be to permit recovery of the previously incurred cost.	View
us-gaap	Restricted Cash and Cash Equivalents, Current	Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.	View
us-gaap	Stock Issued During Period, Value, New Issues	Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.	View
us-gaap	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.	View

Chart of Accounts => Accounts

Name	View

Capital Expenditures Incurred but Not yet Paid	View
Accounts Payable, Current	View
Accounts Payable	View
Accounts Receivable, after Allowance for Credit Loss, Current	View
Accrued Income Taxes, Current	View
Accrued Liabilities, Current	View
Accrued Liabilities	View
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	View
Accumulated Other Comprehensive Income (Loss), Net of Tax	View
Additional Collateral, Aggregate Fair Value	View
Additional Paid in Capital, Common Stock	View
Amortization	View
Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities, Other (Deprecated 2011-01-31)	View
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities	View
Share-based Payment Arrangement, Expense	View
Accounts Receivable, Allowance for Credit Loss, Current	View
Amortization of Deferred Charges	View
Amortization of Intangible Assets	View
Amortization of Regulatory Asset	View
Assets, Current	View
Assets, Fair Value Disclosure	View
Available-for-sale Securities, Fair Value Disclosure (Deprecated 2013-01-31)	View
Business Acquisition, Cost of Acquired Entity, Purchase Price (Deprecated 2013-01-31)	View
Business Acquisition, Pro Forma Earnings Per Share, Basic	View
Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net (Deprecated 2013-01-31)	View
Business Acquisition, Purchase Price Allocation, Current Assets (Deprecated 2013-01-31)	View
Business Acquisition, Purchase Price Allocation, Current Liabilities (Deprecated 2013-01-31)	View
Business Acquisition, Purchase Price Allocation, Goodwill Amount (Deprecated 2013-01-31)	View
Cash and Cash Equivalents, at Carrying Value	View
Cash and Cash Equivalents, Period Increase (Decrease)	View
Cash Surrender Value, Fair Value Disclosure	View
Common Stock, Dividends, Per Share, Declared	View
Common Stock, No Par Value	View
Common Stock, Shares Authorized	View
Common Stock, Value, Issued	View
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	View
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	View
Construction in Progress, Gross	View
Cost of Natural Gas Purchases (Deprecated 2018-01-31)	View
Cost of Purchased Oil and Gas (Deprecated 2018-01-31)	View
Cost of Transmission, Other (Deprecated 2016-01-31)	View
Current Federal Tax Expense (Benefit)	View
Current Income Tax Expense (Benefit)	View
Current State and Local Tax Expense (Benefit)	View
Debt Conversion, Original Debt, Amount	View
Deferred Federal Income Tax Expense (Benefit)	View
Deferred Income Tax Expense (Benefit)	View
Deferred Long-term Liability Charges	View
Deferred Purchased Power Costs	View
Deferred State and Local Income Tax Expense (Benefit)	View
Deferred Tax Assets, Equity Method Investments	View
Deferred Tax Assets, Gross	View
Deferred Tax Assets, Gross, Noncurrent	View
Deferred Tax Assets, Net, Noncurrent	View
Deferred Tax Assets, Net of Valuation Allowance, Current	View
Deferred Tax Assets, Operating Loss Carryforwards	View
Deferred Tax Assets, Other	View
Deferred Tax Assets, Regulatory Assets and Liabilities	View
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax	View
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Compensated Absences	View
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Bonuses	View
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation	View
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Other	View
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions	View
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits	View
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	View
Deferred Tax Assets, Tax Deferred Expense, Other	View
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts	View
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Asset Retirement Obligations	View
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Contingencies	View
Deferred Tax Liabilities, Net	View
Deferred Tax Liabilities, Net, Current	View
Deferred Tax Liabilities, Financing Arrangements	View
Deferred Tax Liabilities, Investment in Noncontrolled Affiliates	View
Deferred Tax Liabilities, Leasing Arrangements	View
Deferred Tax Liabilities, Net, Noncurrent	View
Deferred Tax Liabilities, Other	View
Deferred Tax Liabilities, Other Finite-Lived Assets	View
Deferred Tax Liabilities, Property, Plant and Equipment	View
Deferred Tax Liabilities, Regulatory Assets	View
Liability, Defined Benefit Pension Plan, Noncurrent	View
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)	View
Defined Benefit Plan, Effect of One Percentage Point Increase on Service and Interest Cost Components	View
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year (Deprecated 2013-01-31)	View
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	View
Defined Benefit Plan, Expected Future Benefit Payment, Year One	View
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	View
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	View
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	View
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	View
Defined Benefit Plan, Plan Assets, Amount	View
Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year (Deprecated 2017-01-31)	View
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year (Deprecated 2017-01-31)	View
Defined Benefit Plan, Target Allocation Percentage of Assets, Debt Securities (Deprecated 2012-01-31)	View
Defined Benefit Plan, Target Allocation Percentage of Assets, Equity Securities (Deprecated 2012-01-31)	View
Defined Benefit Plan, Target Allocation Percentage of Assets, Other (Deprecated 2012-01-31)	View
Defined Contribution Plan, Cost	View
Depreciation	View
Depreciation, Depletion and Amortization, Nonproduction	View
Depreciation, Nonproduction	View
Derivative Asset, Not Subject to Master Netting Arrangement Deduction	View
Derivative Asset	View
Derivative Asset, Current	View
Derivative Asset, Noncurrent	View
Derivative Asset, Fair Value, Gross Asset	View
Derivative Liability, Fair Value, Gross Liability	View
Derivative Financial Instruments, Liabilities, Fair Value Disclosure (Deprecated 2013-01-31)	View
Derivative Liability	View
Derivative Liability, Current	View
Derivative Liability, Noncurrent	View
Derivative Liability, Not Subject to Master Netting Arrangement	View
Derivative, Number of Instruments Held	View
Dividends, Common Stock, Cash	View
Dividends Payable, Current	View
Dividends Payable	View
Earnings Per Share, Basic	View
Earnings Per Share, Diluted	View
Effective Income Tax Rate Reconciliation, Percent	View
Electrical Transmission and Distribution Revenue (Deprecated 2018-01-31)	View
Electric Revenue (Deprecated 2018-01-31)	View
Employee Benefits and Share-based Compensation	View
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition (Deprecated 2012-01-31)	View
Energy Related Inventory, Natural Gas in Storage	View
Equity Method Investment, Ownership Percentage	View
Equity Method Investments	View
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings	View
Fair Value, Assets Measured on Recurring Basis, Gain (Loss) Included in Other Income (Deprecated 2013-01-31)	View
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset and Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) (Deprecated 2012-01-31)	View
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings	View
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	View
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements)	View
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements	View
Long-term Debt, Current Maturities	View
Long-term Debt, Fair Value	View
Goodwill	View
Income (Loss) from Equity Method Investments	View
Income (Loss) from Equity Method Investments, Net of Dividends or Distributions	View
Income Tax Expense (Benefit)	View
Income Taxes Paid, Net	View
Income Taxes Receivable, Current	View
Effective Income Tax Rate Reconciliation, Deduction, Employee Stock Ownership Plan Dividend, Amount	View
Effective Income Tax Rate Reconciliation, Deduction, Other, Amount	View
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	View
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amortization, Amount	View
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Depreciation, Amount	View
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Amount	View
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount	View
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	View
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	View
Effective Income Tax Rate Reconciliation, Tax Credit, Amount	View
Effective Income Tax Rate Reconciliation, Tax Credit, Investment, Amount	View
Increase (Decrease) in Accounts Payable, Trade	View
Increase (Decrease) in Accounts Receivable	View
Increase (Decrease) in Income Taxes Payable	View
Increase (Decrease) in Accrued Liabilities	View
Increase (Decrease) in Book Overdrafts	View
Increase (Decrease) in Fuel Inventories	View
Increase (Decrease) in Income Taxes	View
Increase (Decrease) in Interest Payable, Net	View
Increase (Decrease) in Other Employee-Related Liabilities	View
Increase (Decrease) in Other Operating Assets	View
Increase (Decrease) in Other Operating Liabilities	View
Increase (Decrease) in Obligation, Pension Benefits	View
Increase (Decrease) in Obligation, Other Postretirement Benefits	View
Increase (Decrease) in Prepaid Expense	View
Increase (Decrease) in Regulatory Assets and Liabilities	View
Increase (Decrease) in Restricted Cash	View
Increase (Decrease) in Unbilled Receivables	View
Interest and Debt Expense	View
Interest Expense	View
Interest Expense, Debt	View
Interest Expense, Medium-term Notes	View
Interest Expense, Other	View
Interest Paid, Excluding Capitalized Interest, Operating Activities	View
Interest Payable, Current	View
Interest Payable	View
Inventory, Raw Materials and Supplies, Net of Reserves	View
Investment Income, Interest	View
Operating Leases, Rent Expense	View
Letters of Credit Outstanding, Amount	View
Liabilities and Equity	View
Liabilities, Current	View
Financial and Nonfinancial Liabilities, Fair Value Disclosure	View
Liabilities, Noncurrent	View
Line of Credit Facility, Amount Outstanding (Deprecated 2014-01-31)	View
Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases	View
Line of Credit Facility, Maximum Borrowing Capacity	View
Line of Credit, Current	View
Long-term Debt	View
Long-term Debt and Lease Obligation	View
Long-Term Debt, Maturity, Year One	View
Long-Term Debt, Maturity, Year Four	View
Long-Term Debt, Maturity, Year Three	View
Long-Term Debt, Maturity, Year Two	View
Long-term Debt, Excluding Current Maturities	View
Long-term Investments	View
Long-term Investments and Receivables, Net	View
Loss Contingency, Range of Possible Loss, Minimum (Deprecated 2016-01-31)	View
Stockholders' Equity Attributable to Noncontrolling Interest	View
Net Income (Loss) Attributable to Noncontrolling Interest, Other (Deprecated 2013-01-31)	View
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders (Deprecated 2013-01-31)	View
Net Cash Provided by (Used in) Financing Activities	View
Net Cash Provided by (Used in) Financing Activities, Continuing Operations	View
Net Cash Provided by (Used in) Investing Activities	View
Net Cash Provided by (Used in) Investing Activities, Continuing Operations	View
Net Income (Loss) Available to Common Stockholders, Basic	View
Net Regulatory Assets	View
Noncontrolling Interest in Net Income (Loss) Other Noncontrolling Interests, Nonredeemable	View
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Nonredeemable	View
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable	View
Nonoperating Income (Expense)	View
Oil and Gas Revenue (Deprecated 2018-01-31)	View
Operating Expenses	View
Operating Income (Loss)	View
Operating Leases, Future Minimum Payments Due	View
Operating Leases, Future Minimum Payments Due, Next Twelve Months	View
Operating Leases, Future Minimum Payments, Due in Five Years	View
Operating Leases, Future Minimum Payments, Due in Four Years	View
Operating Leases, Future Minimum Payments, Due in Three Years	View
Operating Leases, Future Minimum Payments, Due in Two Years	View
Operating Leases, Future Minimum Payments, Due Thereafter	View
Operating Leases, Income Statement, Sublease Revenue	View
Operating Loss Carryforwards	View
Other Assets, Current	View
Other Assets, Noncurrent	View
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent	View
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax Effect (Deprecated 2012-01-31)	View
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax	View
Other Comprehensive Income (Loss), Net of Tax	View
Other Comprehensive Income (Loss), Net of Tax (Deprecated 2012-01-31)	View
Other Labor-related Expenses	View
Other Liabilities, Noncurrent	View
Other Long-term Investments	View
Other Noncash Income (Expense)	View
Other Noncurrent Liabilities (Deprecated 2011-01-31)	View
Other Nonoperating Income	View
Other Nonoperating Income (Expense)	View
Liability, Other Retirement Benefits	View
Liability, Other Retirement Benefits, Noncurrent	View
Other Receivables	View
Other Revenue, Net (Deprecated 2018-01-31)	View
Payments for (Proceeds from) Other Investing Activities	View
Payments for Rent	View
Payments of Ordinary Dividends, Common Stock	View
Payments to Acquire Businesses, Net of Cash Acquired	View
Payments to Acquire Equity Method Investments	View
Payments to Acquire Interest in Joint Venture	View
Pension and Other Postretirement Benefits Cost (Reversal of Cost)	View
Payment for Pension Benefits	View
Preferred Stock, Shares Outstanding	View
Preferred Stock, Value, Issued	View
Prepaid Expense, Current	View
Proceeds from Divestiture of Interest in Joint Venture	View
Proceeds from Equity Method Investment, Distribution, Return of Capital	View
Proceeds from Issuance of Common Stock	View
Proceeds from Issuance of Long-term Debt	View
Proceeds from Collection of (Payments to Fund) Long-term Loans to Related Parties	View
Proceeds from (Payments for) Other Financing Activities	View
Proceeds from (Repayments of) Short-term Debt	View
Property, Plant and Equipment, Gross	View
Property, Plant and Equipment, Net	View
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity	View
Allowance for Funds Used During Construction, Capitalized Interest	View
Public Utilities, Allowance for Funds Used During Construction, Rate	View
Public Utilities, Property, Plant and Equipment, Accumulated Depreciation	View
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	View
Public Utilities, Property, Plant and Equipment, Net	View
Public Utilities, Property, Plant and Equipment, Plant in Service	View
Real Estate Tax Expense	View
Regulated and Unregulated Operating Revenue	View
Regulatory Assets	View
Regulatory Assets, Current	View
Regulatory Assets, Noncurrent	View
Regulatory Liabilities	View
Regulatory Liability, Current	View
Regulatory Liability, Noncurrent	View
Related Party Transaction, Due from (to) Related Party	View
Related Party Transaction, Expenses from Transactions with Related Party	View
Repayments of Long-term Debt	View
Restricted Cash and Cash Equivalents	View
Retained Earnings (Accumulated Deficit)	View
Retained Earnings, Undistributed Earnings from Equity Method Investees	View
Revenues	View
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	View
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term (Deprecated 2012-01-31)	View
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	View
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term (Deprecated 2012-01-31)	View
Short-term Debt	View
Stockholders' Equity Attributable to Parent	View
Stock Issued During Period, Value, Employee Stock Purchase Plan	View
Stock Issued During Period, Value, New Issues	View
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	View
Tax Adjustments, Settlements, and Unusual Provisions	View
Taxes, Miscellaneous	View
Taxes, Other	View
Taxes Payable, Current	View
Unamortized Debt Issuance Expense	View
Unbilled Receivables, Current	View
Unrealized Gain (Loss) on Derivatives	View
Unrecognized Tax Benefits	View
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	View
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	View
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	View
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	View
Unsecured Long-term Debt, Noncurrent	View
Utilities Operating Expense, Depreciation and Amortization	View
Utilities Operating Expense, Maintenance and Operations	View
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense	View
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account	View
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	View
SEC Schedule, 12-09, Valuation Allowances and Reserves, Business Acquired	View
Weighted Average Number Diluted Shares Outstanding Adjustment	View
Weighted Average Number of Shares Outstanding, Diluted	View
Weighted Average Number of Shares Outstanding, Basic	View
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	View
Asset Retirement Obligation	View
Asset Retirement Obligation, Accretion Expense	View
Asset Retirement Obligation, Liabilities Incurred	View
Asset Retirement Obligation, Liabilities Settled	View
Assets	View
Business Acquisition, Purchase Price Allocation, Noncurrent Assets (Deprecated 2013-01-31)	View
Business Acquisition, Purchase Price Allocation, Noncurrent Liabilities, Long-term Debt (Deprecated 2013-01-31)	View
Business Acquisition, Purchase Price Allocation, Other Noncurrent Liabilities (Deprecated 2013-01-31)	View
Business Acquisition, Pro Forma Net Income (Loss)	View
Business Acquisition, Pro Forma Revenue	View
Business Combination, Acquisition Related Costs	View
Capitalization, Long-term Debt and Equity	View
Cost of Purchased Power (Deprecated 2018-01-31)	View
Debt Instrument, Face Amount	View
Debt Instrument, Unamortized Discount	View
Debt Instrument, Unamortized Premium	View
Debt Related Commitment Fees and Debt Issuance Costs	View
Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation (Deprecated 2012-01-31)	View
Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation	View
Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components (Deprecated 2012-01-31)	View
Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components	View
Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation	View
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	View
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included in Other Comprehensive Income (Loss) (Deprecated 2019-01-31)	View
Gain Contingency, Unrecorded Amount	View
Gain (Loss) on Sale of Equity Investments	View
Gas Domestic Regulated Revenue (Deprecated 2018-01-31)	View
Goodwill, Purchase Accounting Adjustments	View
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	View
Long-Term Debt, Maturity, after Year Five	View
Net Cash Provided by (Used in) Operating Activities	View
Net Cash Provided by (Used in) Operating Activities, Continuing Operations	View
Net Income (Loss) Attributable to Parent	View
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	View
Other Depreciation and Amortization	View
Payments to Acquire Property, Plant, and Equipment	View
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	View
Restricted Cash and Cash Equivalents, Current	View
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount	View

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