Asset Impairments - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Property, Plant and Equipment [Line Items]
Impairment of Long-Lived Assets Held-for-use			$ 0	$ 500
Net income (loss) attributable to noncontrolling interests	$ 0	$ 75	1	99
Deferred income taxes and amortization of investment tax credits			$ 143	$ (163)

Amount of deferred income tax expense (benefit) and income tax credits.

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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Amount of Net Income (Loss) attributable to noncontrolling interest.

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