Revenue - Schedule of Capitalized and Deferred Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Capitalized Contract Cost [Abstract]
Capitalized Contract Cost, Net	$ 197	$ 189	$ 191
Capitalized Contract Cost, Additions	458	421	454
Capitalized Contract Cost, Amortization	(441)	(407)	(451)
Capitalized Contract Cost, Disposals	0	0	(4)
Capitalized Contract Cost, Impairment Loss	0	0	(1)
Capitalized Contract Cost, Foreign Exchange Translation Gain (Loss)	4	(6)	0
Capitalized Contract Cost, Net	$ 218	$ 197	$ 189