Accounts Receivable, Net - Summary (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for doubtful accounts	$ (63)		$ (58)
Accounts receivable, net	807		818
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	58
Ending balance	$ 63		$ 58
Credit Concentration Risk | Accounts Receivable | Customers
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Concentration risk (percentage)	7.20%		6.60%
Accounts Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Invoiced	$ 658		$ 660
Accrued	212		216
Allowance for doubtful accounts	(63)	$ (68)	(58)
Accounts receivable, net	807		818
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	58	69	69
Provision	9	4
Charge-offs	(3)	(5)
Recoveries and other	(1)	0
Ending balance	$ 63	$ 68	$ 58