Receivables, Allowance for Credit Losses and Credit Quality of Receivables - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Jun. 30, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and notes receivable, net	$ 636	$ 636	$ 656
Allowance for Loan and Lease Losses, Period Increase (Decrease)	12	40
Stockholders' Equity Attributable to Parent	(2,479)	(2,479)	(2,509)	$ (2,653)	$ (2,358)	$ (2,108)
Stockholders' Equity Attributable to Parent	(2,479)	(2,479)	(2,509)	(2,653)	(2,358)	(2,108)
Accumulated Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Stockholders' Equity Attributable to Parent	(3,322)	(3,322)			(3,119)	(2,954)
Stockholders' Equity Attributable to Parent	$ (3,322)	$ (3,322)			$ (3,119)	(2,954)
Cumulative Effect, Period of Adoption, Adjustment | Accumulated Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Stockholders' Equity Attributable to Parent						6
Stockholders' Equity Attributable to Parent						$ 6
Notes receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and notes receivable, net			656	$ 636
Latin America
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, before Allowance for Credit Loss			119
Accounts Receivable, after Allowance for Credit Loss			67
Latin America | Balances Over 90 days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, before Allowance for Credit Loss			74
Accounts Receivable, after Allowance for Credit Loss			$ 41