Income Taxes - Reconciliation of Income Taxes Computed at Statutory U.S. Federal Income Tax Rate to Income Tax Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income tax expense computed at the statutory U.S. federal income tax rate	$ 59	$ (210)	$ (42)
Increases (reductions) in income tax expense resulting from:
Non-U.S. income taxed at different rates	17	2	8
U.S. state and local taxes on income, net of U.S. federal income tax benefit	(33)	(26)	(14)
Changes in valuation allowance for tax loss carryforwards and credits	175	605	36
Tax credits and R&D incentives	(21)	(15)	(19)
Non-U.S. earnings subject to U.S. federal income tax	69	18	12
Non-deductible expenses / non-taxable items	24	15	16
Goodwill impairment and other non-deductible impairment	0	65	22
Tax contingencies	(72)	2	(7)
Gains on transfers of subsidiaries	0	0	21
Nonconsolidated affiliates	(11)	(10)	(8)
Other	(25)	13	(6)
Income tax expense	$ 182	$ 459	$ 19