Income tax expense (benefit) attributable to noncontrolling interest.

No definition available.

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- Definition

Income taxes.

+ References

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- Definition

Weighted average rate reversal of deferred tax to originate the deferred tax liability.

+ References

No definition available.

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- Definition

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

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- Definition

Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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- Definition

Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity.

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- Definition

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 income tax settlements. Including, but not limited to, domestic tax settlement, foreign tax settlement, state and local tax settlement, and other tax settlements.

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Income Taxes (Narrative) (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Income Taxes (Narrative) (Detail) - USD ($) $ in Millions	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Taxes [Line Items]
Weighted average rate reversal of deferred taxes to originate the deferred tax liability			35.00%
Deferred tax benefit			$ 21
Income tax expense attributable to noncontrolling interest				$ 55
Income tax expense (benefit) from discontinued operations	$ (6)	$ (10)	5	(572)
GT&S Transaction
Income Taxes [Line Items]
Income tax expense (benefit) from discontinued operations	$ 18
Discontinued Operations \| GT&S Transaction
Income Taxes [Line Items]
Income tax benefit related to finalizing income tax returns			15
Atlantic Coast Pipeline \| Supply Header Project \| Discontinued Operations
Income Taxes [Line Items]
Income taxes charge				81
State
Income Taxes [Line Items]
Income tax benefit associated with remeasurement of state deferred taxes				$ 45
Virginia Electric and Power Company
Income Taxes [Line Items]
Deferred tax benefit			$ 16