Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Mar. 31, 2021
Income Tax Examination [Line Items]
Income tax expense (benefit)	$ 34	$ 648	$ 122	$ 453
Earnings (loss) before income taxes and noncontrolling interests	59	168	251	(1,193)
Non-cash charge to adjust the estimated annual tax rate		145
Tax benefit relating to impairment				39
Asset impairments				$ 883
Decrease in UTB that is reasonably possible					$ 42
Unrecognized tax benefits					54
Valuation allowance					$ 54
U.S.
Income Tax Examination [Line Items]
Tax benefit relating to valuation allowance	$ 12	369	$ 12
Non-US | France
Income Tax Examination [Line Items]
Tax benefit relating to valuation allowance		11
Non-US | China
Income Tax Examination [Line Items]
Tax benefit relating to valuation allowance		$ 2