Income Taxes - Reconciliation of the Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
A reconciliation of the provision (benefit) for income taxes
Statutory U.S. Federal tax rate (as a percent)	21.00%	21.00%	21.00%	35.00%
Tax provision on pretax earnings from continuing operations at statutory U.S. Federal tax rate	$ 74	$ (55)	$ 58
Increase (decrease) in provision for income taxes due to:
Non-U.S. tax rates	34	14	25
Global intangible low taxed income and Foreign-derived intangible income, net of applicable GILTI credits	7	28	32
U.S. Tax Cuts and Jobs Act: transition tax, net of foreign tax credits			(2)
Goodwill and equity investment impairments	6	125
Tax impact of sale of ANZ business	(87)
Tax law changes	(10)		4
Change in valuation allowance: U.S. tax law change			(2)
Change in valuation allowance: other	59	(31)	(18)
Tax attribute expiration	6	11	6
Withholding tax	12	16	11
Non-deductible expenses and taxable gains	14	8	4
Tax credits and incentives	(11)	(18)	(23)
Changes in tax reserves and audit settlements	2	20	13
Mexico inflationary adjustment		4	8
Equity earnings	(14)	(14)	(13)
Intercompany financing	12	(4)
Other taxes based on income	2	3	7
Other items	(17)	11	(2)
Provision for income taxes	$ 89	$ 118	$ 108