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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+ Details

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

Income Taxes (Narrative) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
Income Taxes (Narrative) (Detail) - USD ($) $ in Millions	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2022
Income Taxes [Line Items]
Income tax expense (benefit)	$ 121	$ (117)	$ 342	$ 119
Income tax (benefit) expense from discontinued operations	$ 4	$ (2)	$ 3	4
Hope Gas Inc
Income Taxes [Line Items]
Percentage of equity interests sold					100.00%
Income tax expense (benefit)				$ 90