Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Contingency [Line Items]
Income tax (expense) benefit	$ (648)	$ 9	$ (453)	$ (5)
Earnings (loss) before income taxes and noncontrolling interests	168	69	(1,193)	23
Tax benefit relating to impairment			39
Asset impairments			883
UTB recognized in next twelve months	69		69
Decrease in UTB that is reasonably possible	34		34
U.S.
Income Tax Contingency [Line Items]
Income tax (expense) benefit	(145)
Tax expense (benefit) relating to valuation allowance	369		$ 369
France
Income Tax Contingency [Line Items]
Tax expense (benefit) relating to valuation allowance	11
China
Income Tax Contingency [Line Items]
Tax expense (benefit) relating to valuation allowance	$ (2)
Spain
Income Tax Contingency [Line Items]
Tax expense (benefit) relating to valuation allowance		$ 33		$ 33