Amortizable Intangible Assets - Amortizable Intangible Assets (Details) - USD ($) $ in Millions		Sep. 30, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross carrying value		$ 3,268	$ 3,172
Accumulated amortization		(1,686)	(1,551)
Net carrying value		1,582	1,621
Foreign currency translation, Gross carrying value		39	34
Foreign currency translation, Accumulated amortization		(5)	(2)
Foreign currency translation, Net carrying value		34	32
Purchased Customer Accounts and Other
Finite-Lived Intangible Assets [Line Items]
Gross carrying value, excluding foreign currency translation		3,229	3,138
Accumulated amortization, excluding foreign currency translation		(1,681)	(1,549)
Net carrying value, excluding foreign currency translation		$ 1,548	$ 1,589
Weighted average life (years)	[1]	15 years	15 years

[1] Weighted average life calculated as of the date of acquisition.