Other Financial Data - Schedule of Allowance for Doubtful Accounts (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Movement ofAccounts Receivable, Allowance for Credit Loss, Current [Roll Forward]
Balance at beginning of period	$ 93	$ 101	$ 90	$ 98
Provision	4	21	10	27
Accounts written off, net of recoveries	(9)	(19)	(12)	(23)
Foreign currency translation and other	3	(1)	3	0
Balance at end of period	$ 91	$ 102	$ 91	$ 102