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

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The cash outflow associated with the purchase of noncontrolling interest during the period.

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Income Taxes (Details) - USD ($) $ in Millions	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Tax Examination [Line Items]
Income tax expense (benefit)	$ 845	$ 152	$ 1,308	$ 2,300
Net deferred tax assets	$ 19,800		19,800
GM Cruise Holdings LLC
Income Tax Examination [Line Items]
Payments to acquire additional investment			1,350
Release of valuation allowance			$ 482