Derivatives and Hedging - Notional and fair values of derivative instruments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Other Current Assets
Derivative [Line Items]
Derivative assets	$ 21	$ 11
Other Noncurrent Assets
Derivative [Line Items]
Derivative assets	8	23
Other Current Liabilities
Derivative [Line Items]
Derivative liabilities		1
Accounted for as hedges | Gross foreign exchange contracts
Derivative [Line Items]
Derivative, Notional Amount	629	633
Derivative assets	27	33
Derivative liabilities	0	0
Not accounted for as hedges
Derivative [Line Items]
Derivative, Notional Amount	1,041	1,000
Derivative assets	29	34
Derivative liabilities	0	1
Not accounted for as hedges | Gross foreign exchange contracts
Derivative [Line Items]
Derivative, Notional Amount	412	367
Derivative assets	2	1
Derivative liabilities	$ 0	$ 1
Derivative term of contract	90 days