Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Mar. 31, 2023	Jun. 30, 2022	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 721		$ 692
Accumulated Amortization	(587)		(577)
Net Carrying Amount	134		115
Customer lists and user base
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	246		190
Accumulated Amortization	(196)		(190)
Net Carrying Amount	$ 50		0
Weighted Average Useful Life (Years)	8 years	0 years
Marketing related
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 81		68
Accumulated Amortization	(55)		(53)
Net Carrying Amount	$ 26		15
Weighted Average Useful Life (Years)	6 years	7 years
Developed technologies
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 235		275
Accumulated Amortization	(179)		(177)
Net Carrying Amount	$ 56		98
Weighted Average Useful Life (Years)	4 years	5 years
All other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 159		159
Accumulated Amortization	(157)		(157)
Net Carrying Amount	$ 2		$ 2
Weighted Average Useful Life (Years)	3 years	3 years