Entity Common Stock, Shares Outstanding
|
DEI
|
Entity Public Float
|
DEI
|
Derivative, Notional Amount
|
INVEST
|
Accounts Payable, Current
|
US-GAAP
|
Accounts Receivable, before Allowance for Credit Loss, Current
|
US-GAAP
|
Accrued Environmental Loss Contingencies, Noncurrent
|
US-GAAP
|
Accrued Income Taxes, Current
|
US-GAAP
|
Accumulated Deferred Investment Tax Credit
|
US-GAAP
|
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
|
US-GAAP
|
AOCI, Debt Securities, Available-for-sale, Adjustment, after Tax
|
US-GAAP
|
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax
|
US-GAAP
|
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax
|
US-GAAP
|
Accumulated Other Comprehensive Income (Loss), Net of Tax
|
US-GAAP
|
Additional Collateral, Aggregate Fair Value
|
US-GAAP
|
Additional Paid in Capital, Common Stock
|
US-GAAP
|
Segment Reporting Information, Expenditures for Additions to Long-Lived Assets (Deprecated 2013-01-31)
|
US-GAAP
|
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation
|
US-GAAP
|
Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net
|
US-GAAP
|
Share-based Payment Arrangement, Expense
|
US-GAAP
|
Share-based Payment Arrangement, Expense, after Tax
|
US-GAAP
|
Accounts Receivable, Allowance for Credit Loss
|
US-GAAP
|
Accounts Receivable, Allowance for Credit Loss, Current
|
US-GAAP
|
Amortization of Deferred Hedge Gains
|
US-GAAP
|
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
|
US-GAAP
|
Area of Real Estate Property
|
US-GAAP
|
Asset Impairment Charges
|
US-GAAP
|
Asset Retirement Obligation
|
US-GAAP
|
Asset Retirement Obligation, Accretion Expense
|
US-GAAP
|
Asset Retirement Obligation, Cash Paid to Settle
|
US-GAAP
|
Asset Retirement Obligation, Liabilities Incurred
|
US-GAAP
|
Asset Retirement Obligation, Liabilities Settled
|
US-GAAP
|
Asset Retirement Obligation, Revision of Estimate
|
US-GAAP
|
Asset Retirement Obligations, Noncurrent
|
US-GAAP
|
Assets
|
US-GAAP
|
Assets, Current
|
US-GAAP
|
Assets Held-for-sale, Current (Deprecated 2014-01-31)
|
US-GAAP
|
Assets Held-for-sale, Long Lived (Deprecated 2014-01-31)
|
US-GAAP
|
Assets Held-for-sale, Not Part of Disposal Group, Current
|
US-GAAP
|
Assets, Noncurrent
|
US-GAAP
|
Assets, Noncurrent, Other than Noncurrent Investments and Property, Plant and Equipment
|
US-GAAP
|
Disposal Group, Including Discontinued Operation, Assets, Current
|
US-GAAP
|
Available-for-sale Securities
|
US-GAAP
|
Available-for-sale Securities, Accumulated Gross Unrealized Gain (Loss), before Tax
|
US-GAAP
|
Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss) before Taxes (Deprecated 2018-01-31)
|
US-GAAP
|
Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss), Net of Tax (Deprecated 2018-01-31)
|
US-GAAP
|
Debt Securities, Available-for-sale
|
US-GAAP
|
Available-for-sale Securities, Equity Securities
|
US-GAAP
|
Available-for-sale Securities, Equity Securities, Noncurrent
|
US-GAAP
|
Available-for-sale Securities, Gross Realized Gain (Loss)
|
US-GAAP
|
Available-for-sale Securities, Gross Realized Gains
|
US-GAAP
|
Available-for-sale Securities, Gross Unrealized Gain (Loss) (Deprecated 2013-01-31)
|
US-GAAP
|
Available-for-sale Securities, Noncurrent
|
US-GAAP
|
Available-for-sale Securities, Gross Unrealized Gain (Loss) (Deprecated 2018-01-31)
|
US-GAAP
|
Capital Expenditures Incurred but Not yet Paid
|
US-GAAP
|
Capitalization, Long-term Debt and Equity
|
US-GAAP
|
Capitalized Computer Software, Amortization
|
US-GAAP
|
Capitalized Computer Software, Net
|
US-GAAP
|
Capital Lease Obligations
|
US-GAAP
|
Capital Leases, Future Minimum Payments Due, Next Twelve Months
|
US-GAAP
|
Capital Leases, Future Minimum Payments Due in Five Years
|
US-GAAP
|
Capital Leases, Future Minimum Payments Due in Four Years
|
US-GAAP
|
Capital Leases, Future Minimum Payments Due in Three Years
|
US-GAAP
|
Capital Leases, Future Minimum Payments Due in Two Years
|
US-GAAP
|
Capital Leases, Future Minimum Payments Due Thereafter
|
US-GAAP
|
Cash and Cash Equivalents, at Carrying Value
|
US-GAAP
|
Cash and Cash Equivalents, Period Increase (Decrease)
|
US-GAAP
|
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
|
US-GAAP
|
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect
|
US-GAAP
|
Common Stock, Dividends, Per Share, Declared
|
US-GAAP
|
Common Stock, Par or Stated Value Per Share
|
US-GAAP
|
Common Stock, Shares Authorized
|
US-GAAP
|
Common Stock, Shares, Outstanding
|
US-GAAP
|
Common Stock, Value, Issued
|
US-GAAP
|
Common Stock, Value, Outstanding
|
US-GAAP
|
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
|
US-GAAP
|
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
|
US-GAAP
|
Concentration Risk, Credit Risk, Financial Instrument, Maximum Exposure
|
US-GAAP
|
Construction in Progress, Gross
|
US-GAAP
|
Contract with Customer, Liability
|
US-GAAP
|
Contract with Customer, Liability, Current
|
US-GAAP
|
Cost-method Investments, Realized Gains
|
US-GAAP
|
Cost of Domestic Regulated Gas Revenue (Deprecated 2019-01-31)
|
US-GAAP
|
Cost of Goods and Services, Energy Commodities and Services (Deprecated 2018-01-31)
|
US-GAAP
|
Cost of Goods and Services Sold
|
US-GAAP
|
Cost of Natural Gas Purchases (Deprecated 2018-01-31)
|
US-GAAP
|
Costs and Expenses
|
US-GAAP
|
Cumulative Effect of Initial Adoption of FIN 48 (Deprecated 2011-01-31)
|
US-GAAP
|
Current Federal Tax Expense (Benefit)
|
US-GAAP
|
Current State and Local Tax Expense (Benefit)
|
US-GAAP
|
Customer Advances and Deposits, Current
|
US-GAAP
|
Debt Instrument, Convertible, Conversion Ratio
|
US-GAAP
|
Debt Instrument, Interest Rate, Stated Percentage
|
US-GAAP
|
Debt Securities, Available-for-sale, Gain (Loss)
|
US-GAAP
|
Deferred Compensation Arrangement with Individual, Contributions by Employer
|
US-GAAP
|
Deferred Compensation Arrangement with Individual, Employer Contribution (Deprecated 2017-01-31)
|
US-GAAP
|
Deferred Federal Income Tax Expense (Benefit)
|
US-GAAP
|
Deferred Income Tax Expense (Benefit)
|
US-GAAP
|
Deferred Tax Liabilities, Gross
|
US-GAAP
|
Deferred Income Tax Liabilities, Net
|
US-GAAP
|
Deferred Revenue, Noncurrent
|
US-GAAP
|
Deferred State and Local Income Tax Expense (Benefit)
|
US-GAAP
|
Deferred Tax Assets, Capital Loss Carryforwards
|
US-GAAP
|
Deferred Tax Assets, Deferred Income
|
US-GAAP
|
Deferred Tax Assets, Derivative Instruments
|
US-GAAP
|
Deferred Tax Assets, Gross
|
US-GAAP
|
Deferred Tax Assets, Net
|
US-GAAP
|
Deferred Tax Assets, Net, Current
|
US-GAAP
|
Deferred Tax Assets, Net, Noncurrent
|
US-GAAP
|
Deferred Tax Assets, Net of Valuation Allowance
|
US-GAAP
|
Deferred Tax Assets, Net of Valuation Allowance, Current
|
US-GAAP
|
Deferred Tax Assets, Operating Loss Carryforwards
|
US-GAAP
|
Deferred Tax Assets, Operating Loss Carryforwards, Domestic
|
US-GAAP
|
Deferred Tax Assets, Operating Loss Carryforwards, State and Local
|
US-GAAP
|
Deferred Tax Assets, Other
|
US-GAAP
|
Deferred Tax Assets, Regulatory Assets and Liabilities
|
US-GAAP
|
Deferred Tax Assets, Tax Credit Carryforwards
|
US-GAAP
|
Deferred Tax Assets, Tax Credit Carryforwards, General Business
|
US-GAAP
|
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation
|
US-GAAP
|
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits
|
US-GAAP
|
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts
|
US-GAAP
|
Deferred Tax Assets, Valuation Allowance
|
US-GAAP
|
Deferred Tax Liabilities, Net
|
US-GAAP
|
Deferred Tax Liabilities, Deferred Expense
|
US-GAAP
|
Deferred Tax Liabilities, Derivatives
|
US-GAAP
|
Deferred Tax Liabilities, Investment in Noncontrolled Affiliates
|
US-GAAP
|
Deferred Tax Liabilities, Other
|
US-GAAP
|
Deferred Tax Liabilities, Prepaid Pension Costs (Deprecated 2013-01-31)
|
US-GAAP
|
Deferred Tax Liabilities, Property, Plant and Equipment
|
US-GAAP
|
Deferred Tax Liabilities, Regulatory Assets and Liabilities
|
US-GAAP
|
Assets for Plan Benefits, Defined Benefit Plan
|
US-GAAP
|
Defined Benefit Plan, Plan Assets, Contributions by Employer
|
US-GAAP
|
Defined Benefit Plan, Cost of Providing Special and Contractual Termination Benefits
|
US-GAAP
|
Defined Benefit Plan, Debt Securities (Deprecated 2012-01-31)
|
US-GAAP
|
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage
|
US-GAAP
|
Defined Benefit Plan, Benefit Obligation, Special and Contractual Termination Benefits
|
US-GAAP
|
Defined Benefit Plan, Target Allocation Percentage of Assets, Debt Securities (Deprecated 2012-01-31)
|
US-GAAP
|
Defined Benefit Plan, Target Plan Asset Allocations (Deprecated 2017-01-31)
|
US-GAAP
|
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage
|
US-GAAP
|
Defined Contribution Plan, Cost
|
US-GAAP
|
Depreciation, Depletion and Amortization, Nonproduction
|
US-GAAP
|
Depreciation, Depletion and Amortization
|
US-GAAP
|
Derivative Asset
|
US-GAAP
|
Derivative Asset, Current
|
US-GAAP
|
Derivative Asset, Noncurrent
|
US-GAAP
|
Derivative, Fixed Interest Rate
|
US-GAAP
|
Derivative Instruments and Hedges, Liabilities
|
US-GAAP
|
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net
|
US-GAAP
|
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net
|
US-GAAP
|
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net (Deprecated 2018-01-31)
|
US-GAAP
|
Derivative Liability
|
US-GAAP
|
Derivative Liability, Current
|
US-GAAP
|
Derivative Liability, Noncurrent
|
US-GAAP
|
Derivative, Net Liability Position, Aggregate Fair Value
|
US-GAAP
|
Dividends, Cash
|
US-GAAP
|
Dividends, Common Stock, Cash
|
US-GAAP
|
Dividends Payable
|
US-GAAP
|
Due to Related Parties
|
US-GAAP
|
Earnings Per Share, Basic
|
US-GAAP
|
Earnings Per Share, Diluted
|
US-GAAP
|
Effective Income Tax Rate Reconciliation, Percent
|
US-GAAP
|
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
|
US-GAAP
|
Effective Income Tax Rate Reconciliation,Other Reconciling Items, Percent
|
US-GAAP
|
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Amount
|
US-GAAP
|
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount
|
US-GAAP
|
Share-based Payment Arrangement, Expense, Tax Benefit
|
US-GAAP
|
Energy Related Inventory, Gas Stored Underground
|
US-GAAP
|
Energy Related Inventory, Natural Gas in Storage
|
US-GAAP
|
Environmental Remediation Expense
|
US-GAAP
|
Proceeds from Equity Method Investment, Distribution
|
US-GAAP
|
Equity Method Investment, Net Sales Proceeds (Deprecated 2016-01-31)
|
US-GAAP
|
Equity Method Investment, Other than Temporary Impairment
|
US-GAAP
|
Equity Method Investment, Realized Gain (Loss) on Disposal
|
US-GAAP
|
Equity Method Investments
|
US-GAAP
|
Equity Securities, FV-NI
|
US-GAAP
|
Equity Securities, FV-NI, Realized Gain (Loss)
|
US-GAAP
|
Equity Securities, FV-NI, Unrealized Gain (Loss)
|
US-GAAP
|
Excess Tax Benefit from Share-based Compensation, Financing Activities
|
US-GAAP
|
Excess Tax Benefit from Share-based Compensation, Operating Activities
|
US-GAAP
|
Excise and Sales Taxes
|
US-GAAP
|
Excise Taxes Collected
|
US-GAAP
|
Finance Lease, Interest Expense
|
US-GAAP
|
Finance Lease, Interest Payment on Liability
|
US-GAAP
|
Finance Lease, Liability
|
US-GAAP
|
Finance Lease, Liability, Current
|
US-GAAP
|
Finance Lease, Liability, Noncurrent
|
US-GAAP
|
Finance Lease, Liability, Payment, Due
|
US-GAAP
|
Finance Lease, Liability, to be Paid, after Year Five
|
US-GAAP
|
Finance Lease, Liability, to be Paid, Year One
|
US-GAAP
|
Finance Lease, Liability, to be Paid, Year Five
|
US-GAAP
|
Finance Lease, Liability, to be Paid, Year Four
|
US-GAAP
|
Finance Lease, Liability, to be Paid, Year Three
|
US-GAAP
|
Finance Lease, Liability, to be Paid, Year Two
|
US-GAAP
|
Finance Lease, Liability, to be Paid, Remainder of Fiscal Year
|
US-GAAP
|
Finance Lease, Liability, Undiscounted Excess Amount
|
US-GAAP
|
Finance Lease, Principal Payments
|
US-GAAP
|
Finance Lease, Right-of-Use Asset, after Accumulated Amortization
|
US-GAAP
|
Finance Lease, Right-of-Use Asset, Amortization
|
US-GAAP
|
Financing Receivable, Not Past Due
|
US-GAAP
|
Finite-Lived Intangible Asset, Expected Amortization, after Year Five
|
US-GAAP
|
Finite-Lived Intangible Asset, Expected Amortization, Year One
|
US-GAAP
|
Finite-Lived Intangible Asset, Expected Amortization, Year Five
|
US-GAAP
|
Finite-Lived Intangible Asset, Expected Amortization, Year Four
|
US-GAAP
|
Finite-Lived Intangible Asset, Expected Amortization, Year Three
|
US-GAAP
|
Finite-Lived Intangible Asset, Expected Amortization, Year Two
|
US-GAAP
|
Finite-Lived Intangible Assets, Net
|
US-GAAP
|
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months
|
US-GAAP
|
Gain (Loss) on Derivative Instruments, Net, Pretax
|
US-GAAP
|
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property
|
US-GAAP
|
Gain (Loss) on Disposition of Assets
|
US-GAAP
|
Gain (Loss) on Disposition of Business
|
US-GAAP
|
Gain (Loss) on Sale of Properties
|
US-GAAP
|
Gain (Loss) on Disposition of Property Plant Equipment
|
US-GAAP
|
Gas Purchase Payable, Current
|
US-GAAP
|
Good Faith and Margin Deposits with Broker-Dealers
|
US-GAAP
|
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)
|
US-GAAP
|
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
|
US-GAAP
|
Income (Loss) from Equity Method Investments
|
US-GAAP
|
Income (Loss) from Equity Method Investments, Net of Dividends or Distributions
|
US-GAAP
|
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority
|
US-GAAP
|
Income Tax Expense (Benefit)
|
US-GAAP
|
Income Taxes Paid
|
US-GAAP
|
Income Taxes Paid, Net
|
US-GAAP
|
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount
|
US-GAAP
|
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
|
US-GAAP
|
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount
|
US-GAAP
|
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount
|
US-GAAP
|
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount
|
US-GAAP
|
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
|
US-GAAP
|
Effective Income Tax Rate Reconciliation, Tax Contingency, Amount
|
US-GAAP
|
Effective Income Tax Rate Reconciliation, Tax Credit, Amount
|
US-GAAP
|
Effective Income Tax Rate Reconciliation, Tax Credit, Investment, Amount
|
US-GAAP
|
Increase (Decrease) in Accounts Payable
|
US-GAAP
|
Increase (Decrease) in Accounts Payable, Trade
|
US-GAAP
|
Increase (Decrease) in Accounts Receivable
|
US-GAAP
|
Increase (Decrease) in Allowance for Equity Funds Used During Construction
|
US-GAAP
|
Increase (Decrease) in Receivables from Brokers-Dealers and Clearing Organizations
|
US-GAAP
|
Increase (Decrease) in Contract with Customer, Liability
|
US-GAAP
|
Increase (Decrease) in Customer Deposits
|
US-GAAP
|
Increase (Decrease) in Due from Related Parties, Current
|
US-GAAP
|
Increase (Decrease) in Due to Related Parties, Current
|
US-GAAP
|
Increase (Decrease) in Inventories
|
US-GAAP
|
Increase (Decrease) in Operating Capital
|
US-GAAP
|
Increase (Decrease) in Other Accounts Payable
|
US-GAAP
|
Increase (Decrease) in Other Noncurrent Assets
|
US-GAAP
|
Increase (Decrease) in Other Noncurrent Liabilities
|
US-GAAP
|
Increase (Decrease) in Other Operating Assets
|
US-GAAP
|
Increase (Decrease) in Payables to Broker-Dealers and Clearing Organizations
|
US-GAAP
|
Increase (Decrease) in Prepaid Expense
|
US-GAAP
|
Increase (Decrease) in Recoverable Refundable Gas Costs
|
US-GAAP
|
Increase (Decrease) in Regulatory Assets and Liabilities
|
US-GAAP
|
Increase (Decrease) in Restricted Cash
|
US-GAAP
|
Incremental Common Shares Attributable to Dilutive Effect of Equity Forward Agreements
|
US-GAAP
|
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
|
US-GAAP
|
Intangible Assets, Net (Excluding Goodwill)
|
US-GAAP
|
Interest Expense
|
US-GAAP
|
Interest Paid, Including Capitalized Interest, Operating and Investing Activities
|
US-GAAP
|
Interest Paid, Excluding Capitalized Interest, Operating Activities
|
US-GAAP
|
Investment Income, Interest
|
US-GAAP
|
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures
|
US-GAAP
|
Lease, Cost
|
US-GAAP
|
Lessee, Finance Lease, Discount Rate
|
US-GAAP
|
Lessee, Operating Lease, Discount Rate
|
US-GAAP
|
Lessee, Operating Lease, Liability, to be Paid
|
US-GAAP
|
Lessee, Operating Lease, Liability, to be Paid, after Year Five
|
US-GAAP
|
Lessee, Operating Lease, Liability, to be Paid, Year One
|
US-GAAP
|
Lessee, Operating Lease, Liability, to be Paid, Year Five
|
US-GAAP
|
Lessee, Operating Lease, Liability, to be Paid, Year Four
|
US-GAAP
|
Lessee, Operating Lease, Liability, to be Paid, Year Three
|
US-GAAP
|
Lessee, Operating Lease, Liability, to be Paid, Year Two
|
US-GAAP
|
Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year
|
US-GAAP
|
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
|
US-GAAP
|
Liabilities and Equity
|
US-GAAP
|
Liabilities, Current
|
US-GAAP
|
Liabilities, Noncurrent
|
US-GAAP
|
Liabilities of Business Transferred under Contractual Arrangement, Current
|
US-GAAP
|
Long-term Debt
|
US-GAAP
|
Long-term Debt and Lease Obligation
|
US-GAAP
|
Long-term Debt and Lease Obligation, Current
|
US-GAAP
|
Long-term Debt, Current Maturities
|
US-GAAP
|
Long-Term Debt, Maturity, after Year Five
|
US-GAAP
|
Long-Term Debt, Maturity, Year One
|
US-GAAP
|
Long-Term Debt, Maturity, Year Five
|
US-GAAP
|
Long-Term Debt, Maturity, Year Four
|
US-GAAP
|
Long-Term Debt, Maturity, Year Three
|
US-GAAP
|
Long-Term Debt, Maturity, Year Two
|
US-GAAP
|
Long-term Debt, Excluding Current Maturities
|
US-GAAP
|
Net Cash Provided by (Used in) Financing Activities
|
US-GAAP
|
Net Cash Provided by (Used in) Investing Activities
|
US-GAAP
|
Net Cash Provided by (Used in) Operating Activities
|
US-GAAP
|
Net Cash Provided by (Used in) Operating Activities, Continuing Operations
|
US-GAAP
|
Net Income (Loss) Attributable to Parent
|
US-GAAP
|
Financing Receivable, before Allowance for Credit Loss, Noncurrent
|
US-GAAP
|
Notional Amount of Foreign Currency Derivatives (Deprecated 2013-01-31)
|
US-GAAP
|
OCI, before Reclassifications, Net of Tax, Attributable to Parent
|
US-GAAP
|
Operating Expenses
|
US-GAAP
|
Operating Income (Loss)
|
US-GAAP
|
Operating Lease, Cost
|
US-GAAP
|
Operating Lease, Liability
|
US-GAAP
|
Operating Lease, Liability, Current
|
US-GAAP
|
Operating Lease, Liability, Noncurrent
|
US-GAAP
|
Operating Lease, Payments
|
US-GAAP
|
Operating Lease, Right-of-Use Asset
|
US-GAAP
|
Operating Leases, Future Minimum Payments Due, Next Twelve Months
|
US-GAAP
|
Operating Leases, Future Minimum Payments, Due in Five Years
|
US-GAAP
|
Operating Leases, Future Minimum Payments, Due in Four Years
|
US-GAAP
|
Operating Leases, Future Minimum Payments, Due in Three Years
|
US-GAAP
|
Operating Leases, Future Minimum Payments, Due in Two Years
|
US-GAAP
|
Operating Leases, Future Minimum Payments, Due Thereafter
|
US-GAAP
|
Operating Loss Carryforwards, Valuation Allowance
|
US-GAAP
|
Other Assets, Current
|
US-GAAP
|
Other Assets, Fair Value Disclosure
|
US-GAAP
|
Other Assets, Noncurrent
|
US-GAAP
|
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax (Deprecated 2012-01-31)
|
US-GAAP
|
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax (Deprecated 2012-01-31)
|
US-GAAP
|
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax (Deprecated 2012-01-31)
|
US-GAAP
|
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax, Portion Attributable to Parent
|
US-GAAP
|
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, before Tax
|
US-GAAP
|
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, Tax
|
US-GAAP
|
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax
|
US-GAAP
|
Other Comprehensive Income (Loss) before Reclassifications, Tax
|
US-GAAP
|
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax
|
US-GAAP
|
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax
|
US-GAAP
|
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax
|
US-GAAP
|
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax
|
US-GAAP
|
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax
|
US-GAAP
|
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax
|
US-GAAP
|
Other Comprehensive Income (Loss), Net of Tax
|
US-GAAP
|
Other Comprehensive Income (Loss), Net of Tax (Deprecated 2012-01-31)
|
US-GAAP
|
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
|
US-GAAP
|
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax
|
US-GAAP
|
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax
|
US-GAAP
|
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax
|
US-GAAP
|
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax
|
US-GAAP
|
Other Comprehensive Income (Loss), Tax
|
US-GAAP
|
Other Comprehensive Income (Loss), Minimum Pension Liability Net Adjustment, Net of Tax (Deprecated 2012-01-31)
|
US-GAAP
|
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Tax (Deprecated 2012-01-31)
|
US-GAAP
|
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax
|
US-GAAP
|
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax
|
US-GAAP
|
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax
|
US-GAAP
|
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax
|
US-GAAP
|
Other Cost and Expense, Operating
|
US-GAAP
|
Other Inventory, Gross
|
US-GAAP
|
Other Liabilities, Noncurrent
|
US-GAAP
|
Other Noncurrent Liabilities (Deprecated 2011-01-31)
|
US-GAAP
|
Other Nonoperating Income
|
US-GAAP
|
Other Nonoperating Income (Expense)
|
US-GAAP
|
Other Payables to Broker-Dealers and Clearing Organizations
|
US-GAAP
|
Other Prepaid Expense, Current
|
US-GAAP
|
Other Receivables from Broker-Dealers and Clearing Organizations
|
US-GAAP
|
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities
|
US-GAAP
|
Payables to Broker-Dealers and Clearing Organizations
|
US-GAAP
|
Payments for Environmental Liabilities
|
US-GAAP
|
Payments for (Proceeds from) Other Investing Activities
|
US-GAAP
|
Payments for (Proceeds from) Removal Costs
|
US-GAAP
|
Payments for Removal Costs
|
US-GAAP
|
Payments for Repurchase of Common Stock
|
US-GAAP
|
Payments of Ordinary Dividends, Common Stock
|
US-GAAP
|
Payment, Tax Withholding, Share-based Payment Arrangement
|
US-GAAP
|
Payments to Acquire Buildings
|
US-GAAP
|
Payments to Acquire Businesses, Gross
|
US-GAAP
|
Payments to Acquire Equity Method Investments
|
US-GAAP
|
Payments to Acquire Other Investments
|
US-GAAP
|
Payments to Acquire Other Productive Assets
|
US-GAAP
|
Payments to Acquire Other Property, Plant, and Equipment
|
US-GAAP
|
Payments to Acquire Property, Plant, and Equipment
|
US-GAAP
|
Liability, Pension and Other Postretirement and Postemployment Benefits, Noncurrent
|
US-GAAP
|
Payment for Pension and Other Postretirement Benefits
|
US-GAAP
|
Liability, Defined Benefit Plan, Noncurrent
|
US-GAAP
|
Postemployment Benefits, Period Expense
|
US-GAAP
|
Prepaid Taxes
|
US-GAAP
|
Defined Benefit Plan, Expected Future Prescription Drug Subsidy Receipt, after Year Five
|
US-GAAP
|
Prescription Drug Subsidy Receipts, Five Fiscal Years Thereafter (Deprecated 2012-01-31)
|
US-GAAP
|
Defined Benefit Plan, Expected Future Prescription Drug Subsidy Receipt, Year One
|
US-GAAP
|
Prescription Drug Subsidy Receipts, Year Five (Deprecated 2012-01-31)
|
US-GAAP
|
Defined Benefit Plan, Expected Future Prescription Drug Subsidy Receipt, Year Five
|
US-GAAP
|
Prescription Drug Subsidy Receipts, Year Four (Deprecated 2012-01-31)
|
US-GAAP
|
Defined Benefit Plan, Expected Future Prescription Drug Subsidy Receipt, Year Four
|
US-GAAP
|
Prescription Drug Subsidy Receipts, Year One (Deprecated 2012-01-31)
|
US-GAAP
|
Prescription Drug Subsidy Receipts, Year Three (Deprecated 2012-01-31)
|
US-GAAP
|
Defined Benefit Plan, Expected Future Prescription Drug Subsidy Receipt, Year Three
|
US-GAAP
|
Prescription Drug Subsidy Receipts, Year Two (Deprecated 2012-01-31)
|
US-GAAP
|
Defined Benefit Plan, Expected Future Prescription Drug Subsidy Receipt, Year Two
|
US-GAAP
|
Proceeds from Divestiture of Businesses
|
US-GAAP
|
Proceeds from Equity Method Investment, Distribution, Return of Capital
|
US-GAAP
|
Proceeds from Issuance of Common Stock
|
US-GAAP
|
Proceeds from Issuance of Common Stock, Dividend Reinvestment Plan
|
US-GAAP
|
Proceeds from Issuance of Long-term Debt
|
US-GAAP
|
Proceeds from Issuance of Other Long-term Debt
|
US-GAAP
|
Proceeds from Issuance of Senior Long-term Debt
|
US-GAAP
|
Proceeds from Issuance of Unsecured Debt
|
US-GAAP
|
Proceeds from Other Equity
|
US-GAAP
|
Proceeds from (Repayments of) Short-term Debt
|
US-GAAP
|
Proceeds from Sale of Available-for-sale Securities
|
US-GAAP
|
Proceeds from Sale of Available-for-sale Securities, Equity
|
US-GAAP
|
Proceeds from Sale of Other Investments
|
US-GAAP
|
Proceeds from Sale of Productive Assets
|
US-GAAP
|
Proceeds from Sale of Property, Plant, and Equipment
|
US-GAAP
|
Proceeds from Sale of Real Estate
|
US-GAAP
|
Proceeds from Sale of Debt and Equity Securities, FV-NI, Held-for-investment
|
US-GAAP
|
Proceeds from Sale of Treasury Stock
|
US-GAAP
|
Proceeds from Stock Options Exercised
|
US-GAAP
|
Property, Plant and Equipment, Additions
|
US-GAAP
|
Property, Plant and Equipment, Gross
|
US-GAAP
|
Property, Plant and Equipment, Net
|
US-GAAP
|
Property, Plant and Equipment, Other, Gross
|
US-GAAP
|
Accounts Receivable, Credit Loss Expense (Reversal)
|
US-GAAP
|
Public Utilities, Allowance for Funds Used During Construction, Additions
|
US-GAAP
|
Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity
|
US-GAAP
|
Allowance for Funds Used During Construction, Capitalized Interest
|
US-GAAP
|
Public Utilities, Approved Equity Capital Structure, Percentage
|
US-GAAP
|
Public Utilities, Approved Return on Equity, Percentage
|
US-GAAP
|
Public Utilities, Property, Plant and Equipment, Accumulated Depreciation
|
US-GAAP
|
Public Utilities, Property, Plant and Equipment, Construction Work in Progress
|
US-GAAP
|
Public Utilities, Property, Plant and Equipment, Disclosure of Composite Depreciation Rate for Plants in Service
|
US-GAAP
|
Public Utilities, Property, Plant and Equipment, Plant in Service
|
US-GAAP
|
Purchase Obligation, to be Paid, after Year Five
|
US-GAAP
|
Purchase Obligation, to be Paid, Year Five
|
US-GAAP
|
Purchase Obligation, to be Paid, Year Four
|
US-GAAP
|
Purchase Obligation, to be Paid, Year One
|
US-GAAP
|
Purchase Obligation, to be Paid, Year Two
|
US-GAAP
|
Purchase Obligation, to be Paid, Year Three
|
US-GAAP
|
Ratio of Indebtedness to Net Capital
|
US-GAAP
|
Receivables from Brokers-Dealers and Clearing Organizations
|
US-GAAP
|
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
|
US-GAAP
|
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent
|
US-GAAP
|
Recorded Unconditional Purchase Obligation, to be Paid, Remainder of Fiscal Year
|
US-GAAP
|
Regulated and Unregulated Operating Revenue
|
US-GAAP
|
Regulated Operating Revenue, Gas
|
US-GAAP
|
Regulatory Assets, Current
|
US-GAAP
|
Regulatory Assets, Noncurrent
|
US-GAAP
|
Regulatory Liability, Current
|
US-GAAP
|
Regulatory Liability, Noncurrent
|
US-GAAP
|
Related Parties Amount in Cost of Sales
|
US-GAAP
|
Related Party Transaction, Due from (to) Related Party
|
US-GAAP
|
Related Party Transaction, Expenses from Transactions with Related Party
|
US-GAAP
|
Repayments of First Mortgage Bond
|
US-GAAP
|
Repayments of Long-term Debt
|
US-GAAP
|
Repayments of Other Long-term Debt
|
US-GAAP
|
Repayments of Unsecured Debt
|
US-GAAP
|
Restricted Cash and Cash Equivalents
|
US-GAAP
|
Restricted Cash, Noncurrent
|
US-GAAP
|
Retained Earnings (Accumulated Deficit)
|
US-GAAP
|
Revenue from Contract with Customer, Excluding Assessed Tax
|
US-GAAP
|
Revenue Not from Contract with Customer
|
US-GAAP
|
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability
|
US-GAAP
|
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
|
US-GAAP
|
Sale Leaseback Transaction, Net Proceeds (Deprecated 2014-01-31)
|
US-GAAP
|
Sale Leaseback Transaction, Net Proceeds, Financing Activities
|
US-GAAP
|
Sale of Stock, Number of Shares Issued in Transaction
|
US-GAAP
|
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
|
US-GAAP
|
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
|
US-GAAP
|
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
|
US-GAAP
|
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
|
US-GAAP
|
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant
|
US-GAAP
|
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number
|
US-GAAP
|
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price
|
US-GAAP
|
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (Deprecated 2012-01-31)
|
US-GAAP
|
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
|
US-GAAP
|
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price (Deprecated 2012-01-31)
|
US-GAAP
|
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures
|
US-GAAP
|
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (Deprecated 2012-01-31)
|
US-GAAP
|
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
|
US-GAAP
|
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
|
US-GAAP
|
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term (Deprecated 2012-01-31)
|
US-GAAP
|
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
|
US-GAAP
|
Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price
|
US-GAAP
|
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
|
US-GAAP
|
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value
|
US-GAAP
|
Short-term Debt
|
US-GAAP
|
Short-term Lease, Cost
|
US-GAAP
|
Site Contingency, Recovery from Third Party of Environmental Remediation Cost
|
US-GAAP
|
Stockholders' Equity Attributable to Parent
|
US-GAAP
|
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
|
US-GAAP
|
Stockholders' Equity Note, Stock Split, Conversion Ratio
|
US-GAAP
|
Stock Issued During Period, Shares, Dividend Reinvestment Plan
|
US-GAAP
|
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture
|
US-GAAP
|
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
|
US-GAAP
|
Stock Issued During Period, Value, Dividend Reinvestment Plan
|
US-GAAP
|
Stock Issued During Period, Value, New Issues
|
US-GAAP
|
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture
|
US-GAAP
|
Tax Adjustments, Settlements, and Unusual Provisions
|
US-GAAP
|
Tax Credit Carryforward, Amount
|
US-GAAP
|
Tax Cuts and Jobs Act, Income Tax Expense (Benefit)
|
US-GAAP
|
Tax Cuts and Jobs Act, Incomplete Accounting, Change in Tax Rate, Provisional Income Tax Expense (Benefit) (Deprecated 2020-01-31)
|
US-GAAP
|
Taxes, Other
|
US-GAAP
|
Trading Securities, Change in Unrealized Holding Gain (Loss)
|
US-GAAP
|
Transfer to Investments
|
US-GAAP
|
Treasury Stock, Retired, Cost Method, Amount
|
US-GAAP
|
Treasury Stock, Shares
|
US-GAAP
|
Treasury Stock, Shares, Acquired
|
US-GAAP
|
Treasury Stock, Value
|
US-GAAP
|
Treasury Stock, Value, Acquired, Cost Method
|
US-GAAP
|
Unbilled Receivables, Current
|
US-GAAP
|
Unrealized Gain (Loss) on Derivatives
|
US-GAAP
|
Unrealized Gain (Loss) on Derivatives and Commodity Contracts
|
US-GAAP
|
Unrecognized Tax Benefits
|
US-GAAP
|
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities
|
US-GAAP
|
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions
|
US-GAAP
|
Unrecognized Tax Benefits, Period Increase (Decrease)
|
US-GAAP
|
Unregulated Operating Revenue
|
US-GAAP
|
Unusual or Infrequent Item, or Both, Insurance Proceeds
|
US-GAAP
|
Utilities Operating Expense, Other
|
US-GAAP
|
Variable Lease, Cost
|
US-GAAP
|
Weighted Average Number Diluted Shares Outstanding Adjustment
|
US-GAAP
|
Weighted Average Number of Shares Outstanding, Diluted
|
US-GAAP
|
Weighted Average Number of Shares Outstanding, Basic
|
US-GAAP
|
Commissions Payable to Broker-Dealers and Clearing Organizations
|
US-GAAP
|
Deferred Income, Current
|
US-GAAP
|
Increase (Decrease) in Deferred Revenue
|
US-GAAP
|
Reclassification from AOCI, Current Period, Tax
|
US-GAAP
|
Treasury Stock, Common, Shares
|
US-GAAP
|
Deferred Revenue, Current
|
US-GAAP
|
Repayments of Short-term Debt
|
US-GAAP
|
Deferred Income Tax Assets, Net
|
US-GAAP
|
Other Liabilities, Current
|
US-GAAP
|
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount
|
US-GAAP
|
Segment Expenditure Addition To Long Lived Assets
|
US-GAAP
|
Increase (Decrease) in Other Noncurrent Assets and Liabilities, Net
|
US-GAAP
|
Proceeds from Short-term Debt
|
US-GAAP
|
Public Utilities, Approved Rate Increase (Decrease), Amount
|
US-GAAP
|
Interest Expense Nonoperating
|
US-GAAP
|
Debt Instrument, Basis Spread on Variable Rate
|
US-GAAP
|
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay
|
US-GAAP
|
Defined Contribution Plan, Employer Matching Contribution, Percent of Match
|
US-GAAP
|