Revenue - Allowance For Credit Losses (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 20	$ 39	$ 13
Current-period provision for expected credit losses	8	0	37
Write-offs charged against the allowance	(11)	(19)	(11)
Ending balance	$ 17	$ 20	$ 39