Amortizable Intangible Assets - Amortizable Intangible Assets (Details) - USD ($) $ in Millions		Mar. 31, 2025	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Gross carrying value		$ 3,585	$ 3,529
Accumulated amortization		(1,764)	(1,715)
Net carrying value		1,821	1,814
Foreign currency translation, Gross carrying value		37	(28)
Foreign currency translation, Accumulated amortization		(5)	3
Foreign currency translation, Net carrying value		32	(25)
Purchased Customer Accounts and Other
Finite-Lived Intangible Assets [Line Items]
Gross carrying value, excluding foreign currency translation		3,548	3,557
Accumulated amortization, excluding foreign currency translation		(1,759)	(1,718)
Net carrying value, excluding foreign currency translation		$ 1,789	$ 1,839
Weighted average life (years)	[1]	15 years	15 years

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