Acquisitions - Gross Carrying Amount and Weighted-Average Useful Life Allocated to Intangible Assets (Details) - USD ($) $ in Millions		3 Months Ended	6 Months Ended	12 Months Ended
	Jan. 22, 2021	Dec. 31, 2021	Jun. 30, 2022	Dec. 31, 2021	Nov. 22, 2021	Nov. 15, 2021	May 04, 2021
BentoBox CMS, Inc.
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount			$ 52		$ 52
Weighted-Average Useful Life (in years)			5 years
BentoBox CMS, Inc. | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount			$ 27
Weighted-Average Useful Life (in years)			4 years
BentoBox CMS, Inc. | Acquired software and technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount			$ 25
Weighted-Average Useful Life (in years)			6 years
Pineapple Payments
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		$ 127		$ 127			$ 127
Weighted-Average Useful Life (in years)		14 years
Pineapple Payments | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		$ 90		90
Weighted-Average Useful Life (in years)		17 years
Pineapple Payments | Residual buyouts
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		$ 20		20
Weighted-Average Useful Life (in years)		8 years
Pineapple Payments | Acquired software and technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		$ 6		6
Weighted-Average Useful Life (in years)		7 years
Pineapple Payments | Non-compete agreements and other
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		$ 11		11
Weighted-Average Useful Life (in years)		5 years
Ondot
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 142
Weighted-Average Useful Life (in years)	6 years
Ondot | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 35
Weighted-Average Useful Life (in years)	6 years
Ondot | Acquired software and technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 90
Weighted-Average Useful Life (in years)	6 years
Ondot | Non-compete agreements and other
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 17
Weighted-Average Useful Life (in years)	4 years
Other Acquisitions
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		$ 47		$ 47		$ 47
Weighted-Average Useful Life (in years)				7 years
Other Acquisitions | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		9		$ 9
Weighted-Average Useful Life (in years)				10 years
Other Acquisitions | Residual buyouts
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		7		$ 7
Weighted-Average Useful Life (in years)				5 years
Other Acquisitions | Acquired software and technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		$ 31		$ 31
Weighted-Average Useful Life (in years)				6 years