Goodwill and Purchased Intangible Assets - Goodwill by Segments (Details) $ in Millions	9 Months Ended
	Sep. 30, 2022 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 4,688
Accumulated Impairment, beginning balance	(169)
Total beginning balance	4,519
Acquired goodwill	51
Impairment	0
Other	2
Goodwill, ending balance	4,741
Accumulated Impairment, ending balance	(169)
Total	4,572
Retail
Goodwill [Roll Forward]
Goodwill, beginning balance	1,015
Accumulated Impairment, beginning balance	(34)
Total beginning balance	981
Acquired goodwill	0
Impairment	0
Other	(20)
Goodwill, ending balance	995
Accumulated Impairment, ending balance	(34)
Total	961
Hospitality
Goodwill [Roll Forward]
Goodwill, beginning balance	292
Accumulated Impairment, beginning balance	(23)
Total beginning balance	269
Acquired goodwill	0
Impairment	0
Other	(5)
Goodwill, ending balance	287
Accumulated Impairment, ending balance	(23)
Total	264
Digital Banking
Goodwill [Roll Forward]
Goodwill, beginning balance	595
Accumulated Impairment, beginning balance	0
Total beginning balance	595
Acquired goodwill	0
Impairment	0
Other	6
Goodwill, ending balance	601
Accumulated Impairment, ending balance	0
Total	601
Payments & Network
Goodwill [Roll Forward]
Goodwill, beginning balance	988
Accumulated Impairment, beginning balance	0
Total beginning balance	988
Acquired goodwill	51
Impairment	0
Other	8
Goodwill, ending balance	1,047
Accumulated Impairment, ending balance	0
Total	1,047
Self-Service Banking
Goodwill [Roll Forward]
Goodwill, beginning balance	1,635
Accumulated Impairment, beginning balance	(101)
Total beginning balance	1,534
Acquired goodwill	0
Impairment	0
Other	13
Goodwill, ending balance	1,648
Accumulated Impairment, ending balance	(101)
Total	1,547
Other
Goodwill [Roll Forward]
Goodwill, beginning balance	163
Accumulated Impairment, beginning balance	(11)
Total beginning balance	152
Acquired goodwill	0
Impairment	0
Other	0
Goodwill, ending balance	163
Accumulated Impairment, ending balance	(11)
Total	$ 152