Asset Impairment Charges, Net Of Tax

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Asset Retirement Obligation, Revision of Estimate, Benefit

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Asset Retirement Obligation, Revision of Estimate, Benefit, Net of Tax

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- Definition

Gain (Loss) Related to Litigation Settlement, Net of Tax

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Litigation Settlement, Expense, Net of Tax

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Public Utilities, Requested Rate Increase (Decrease), Project Capacity

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

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Amount of public utility's approved rate increase (decrease) by regulatory agency.

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Period end amount of total net PPE.

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Amount of public utility's requested rate increase (decrease) with regulatory agency.

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Percentage of public utility's requested rate increase (decrease) with regulatory agency.

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Gas costs of a regulated entity that are refundable through future rate adjustments. Such costs are a form of a regulatory liabilities and are expected to be refunded in less than one year through rate adjustments.

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The amount for the individual regulatory liability as itemized in a table of regulatory liabilities as of the end of the period.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Regulatory Matters - EEGH - Other Regulatory Matters (Details) dekathermPerDay in Millions, $ in Millions		1 Months Ended				3 Months Ended				8 Months Ended
	Aug. 01, 2020 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)	Jan. 31, 2020 USD ($)	Dec. 31, 2014 dekathermPerDay	Jun. 30, 2021 USD ($)	Oct. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Regulatory Liabilities [Line Items]
Regulatory liabilities										$ 7,369	$ 7,214
Asset retirement obligations
Regulatory Liabilities [Line Items]
Regulatory liabilities										250	345
EGTS
Regulatory Liabilities [Line Items]
Provision for rate refunds										90
Regulatory liabilities										627	532
Property, plant and equipment, net										4,504	$ 4,440
EGTS \| FERC Case, Disallowance Of Capitalized AFUDC, Resolved In December 2020
Regulatory Liabilities [Line Items]
Litigation settlement, expense			$ 43
Litigation settlement, expense, after-tax			$ 31
Litigation settlement, reduction in expense						$ 11
Litigation settlement, reduction in expense, after tax						$ 8
EGTS \| Cancellation Of Atlantic Coast Pipeline Project
Regulatory Liabilities [Line Items]
Impairment of assets									$ 482
Impairment of assets, after-tax									359
EGTS \| Atlantic Coast Pipeline Project, Available For Potential Modified Project
Regulatory Liabilities [Line Items]
Impairment of assets								$ 10
Impairment of assets, after-tax								7
Benefit from ARO revision								29
Benefit from ARO revision, after-tax								$ 20
Property, plant and equipment, net										40
EGTS \| FERC
Regulatory Liabilities [Line Items]
Firm transportation service (Dth per day) \| dekathermPerDay					1.5
EGTS \| FERC \| General Rate Case
Regulatory Liabilities [Line Items]
Requested rate increase (decrease)		$ 1,100
EGTS \| FERC \| General Rate Case \| Natural Gas, Storage
Regulatory Liabilities [Line Items]
Requested rate increase (decrease), percentage		85.00%
EGTS \| FERC \| General Rate Case \| Natural Gas, Gathering, Transportation, Marketing and Processing
Regulatory Liabilities [Line Items]
Requested rate increase (decrease), percentage		60.00%
EGTS \| FERC \| General Rate Case, Transportation and Storage Revenues
Regulatory Liabilities [Line Items]
Approved rate increase (decrease)										160
EGTS \| FERC \| General Rate Case, Depreciation Expense
Regulatory Liabilities [Line Items]
Approved rate increase (decrease)										$ (30)
EGTS \| Asset retirement obligations \| Atlantic Coast Pipeline Project, Available For Potential Modified Project
Regulatory Liabilities [Line Items]
Regulatory liabilities									$ 75
Cove Point LNG, LP \| FERC \| General Rate Case
Regulatory Liabilities [Line Items]
Requested rate increase (decrease)				$ 182
Cove Point LNG, LP \| FERC \| General Rate Case, Increase In Revenue
Regulatory Liabilities [Line Items]
Approved rate increase (decrease)	$ 4
Cove Point LNG, LP \| FERC \| General Rate Case, Decrease In Depreciation Expense
Regulatory Liabilities [Line Items]
Approved rate increase (decrease)	$ (1)
Cove Point LNG, LP \| FERC \| General Rate Case, Provision
Regulatory Liabilities [Line Items]
Approved rate increase (decrease)							$ 7