Amortizable Intangible Assets - Amortizable Intangible Assets (Details) - USD ($) $ in Millions		Mar. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross carrying value		$ 3,184	$ 3,172
Accumulated amortization		(1,592)	(1,551)
Net carrying value		1,592	1,621
Foreign currency translation, Gross carrying value		(7)	34
Foreign currency translation, Accumulated amortization		1	(2)
Foreign currency translation, Net carrying value		(6)	32
Purchased Customer Accounts and Other
Finite-Lived Intangible Assets [Line Items]
Gross carrying value, excluding foreign currency translation		3,191	3,138
Accumulated amortization, excluding foreign currency translation		(1,593)	(1,549)
Net carrying value, excluding foreign currency translation		$ 1,598	$ 1,589
Weighted average life (years)	[1]	15 years	15 years

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