Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 717	$ 692
Accumulated Amortization	(595)	(577)
Net Carrying Amount	122	115
Customer lists and user base
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	241	190
Accumulated Amortization	(195)	(190)
Net Carrying Amount	$ 46	$ 0
Weighted Average Useful Life (Years)	8 years	0 years
Marketing related
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 79	$ 68
Accumulated Amortization	(57)	(53)
Net Carrying Amount	$ 22	$ 15
Weighted Average Useful Life (Years)	6 years	7 years
Developed technologies
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 239	$ 275
Accumulated Amortization	(187)	(177)
Net Carrying Amount	$ 52	$ 98
Weighted Average Useful Life (Years)	4 years	5 years
All other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 158	$ 159
Accumulated Amortization	(156)	(157)
Net Carrying Amount	$ 2	$ 2
Weighted Average Useful Life (Years)	3 years	3 years