Revenue from Contracts with Customers - Schedule of Contract Assets Rollforward (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Capitalized Cost To Fulfill Customer Contracts
Change in Capitalized Contract Costs
Balance at beginning of period	$ 269	$ 257	$ 370	$ 355
Additions	386	355	766	717
Amortization	(390)	(373)	(868)	(835)
Impairment	0	0	0	0
Foreign currency translation and other	(1)	3	(4)	5
Balance at end of period	264	242	264	242
Capitalized Cost To Obtain Customer Contracts
Change in Capitalized Contract Costs
Balance at beginning of period	194	183	195	185
Additions	18	13	32	23
Amortization	(14)	(13)	(27)	(25)
Impairment	0	0	0	0
Foreign currency translation and other	(2)	3	(4)	3
Balance at end of period	$ 196	$ 186	$ 196	$ 186