Supplemental Consolidated Financial Information - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Balance Sheet Components [Abstract]
Allowance for doubtful accounts and authorized credits	$ 60		$ 74
Allowance for doubtful accounts	32		$ 42
Decrease in allowance for doubtful accounts receivable	16
Allowance for doubtful accounts receivable, write-offs	26
Deferred revenue recognized	$ 37	$ 44