Financial Instruments - Summary of Derivative Instruments Fair Value (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Summary Of Derivative Instruments By Hedge Designation [Abstract]
Derivative Assets	$ 4	$ 7
Derivative Liabilities	(14)	(5)
Net derivative asset (liability)	(10)	2
Derivatives Designated as Hedging Instruments
Summary Of Derivative Instruments By Hedge Designation [Abstract]
Net derivative asset (liability)	(7)	2
Derivatives Designated as Hedging Instruments | Other current assets | Foreign exchange contracts - forwards
Summary Of Derivative Instruments By Hedge Designation [Abstract]
Derivative Assets	1	3
Derivatives Designated as Hedging Instruments | Other current assets | Foreign currency options
Summary Of Derivative Instruments By Hedge Designation [Abstract]
Derivative Assets	0	1
Derivatives Designated as Hedging Instruments | Accrued expenses and other current liabilities | Foreign exchange contracts - forwards
Summary Of Derivative Instruments By Hedge Designation [Abstract]
Derivative Liabilities	(8)	(2)
Not Designated as Hedging Instrument | Foreign exchange contracts - forwards
Summary Of Derivative Instruments By Hedge Designation [Abstract]
Net derivative asset (liability)	(3)	0
Not Designated as Hedging Instrument | Other current assets | Foreign exchange contracts - forwards
Summary Of Derivative Instruments By Hedge Designation [Abstract]
Derivative Assets	3	3
Not Designated as Hedging Instrument | Accrued expenses and other current liabilities | Foreign exchange contracts - forwards
Summary Of Derivative Instruments By Hedge Designation [Abstract]
Derivative Liabilities	$ (6)	$ (3)