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Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 4,138	$ 3,755
Operating segments | Acceptance
Disaggregation of Revenue [Line Items]
Revenue	1,653	1,397
Operating segments | Fintech
Disaggregation of Revenue [Line Items]
Revenue	778	736
Operating segments | Payments
Disaggregation of Revenue [Line Items]
Revenue	1,462	1,405
Corporate and Other
Disaggregation of Revenue [Line Items]
Revenue	$ 245	$ 217
Geographic Concentration Risk | Non-US | Revenue from Contract with Customer Benchmark
Disaggregation of Revenue [Line Items]
Percentage of concentration risk	14.00%	13.00%
Processing
Disaggregation of Revenue [Line Items]
Revenue	$ 2,927	$ 2,645
Processing | Operating segments | Acceptance
Disaggregation of Revenue [Line Items]
Revenue	1,403	1,178
Processing | Operating segments | Fintech
Disaggregation of Revenue [Line Items]
Revenue	405	378
Processing | Operating segments | Payments
Disaggregation of Revenue [Line Items]
Revenue	1,113	1,077
Processing | Corporate and Other
Disaggregation of Revenue [Line Items]
Revenue	6	12
Hardware, print and card production
Disaggregation of Revenue [Line Items]
Revenue	470	433
Hardware, print and card production | Operating segments | Acceptance
Disaggregation of Revenue [Line Items]
Revenue	225	190
Hardware, print and card production | Operating segments | Fintech
Disaggregation of Revenue [Line Items]
Revenue	9	11
Hardware, print and card production | Operating segments | Payments
Disaggregation of Revenue [Line Items]
Revenue	236	232
Hardware, print and card production | Corporate and Other
Disaggregation of Revenue [Line Items]
Revenue	0	0
Professional services
Disaggregation of Revenue [Line Items]
Revenue	183	183
Professional services | Operating segments | Acceptance
Disaggregation of Revenue [Line Items]
Revenue	5	9
Professional services | Operating segments | Fintech
Disaggregation of Revenue [Line Items]
Revenue	116	111
Professional services | Operating segments | Payments
Disaggregation of Revenue [Line Items]
Revenue	62	63
Professional services | Corporate and Other
Disaggregation of Revenue [Line Items]
Revenue	0	0
Software maintenance
Disaggregation of Revenue [Line Items]
Revenue	144	141
Software maintenance | Operating segments | Acceptance
Disaggregation of Revenue [Line Items]
Revenue	0	0
Software maintenance | Operating segments | Fintech
Disaggregation of Revenue [Line Items]
Revenue	138	139
Software maintenance | Operating segments | Payments
Disaggregation of Revenue [Line Items]
Revenue	6	2
Software maintenance | Corporate and Other
Disaggregation of Revenue [Line Items]
Revenue	0	0
License and termination fees
Disaggregation of Revenue [Line Items]
Revenue	88	61
License and termination fees | Operating segments | Acceptance
Disaggregation of Revenue [Line Items]
Revenue	14	10
License and termination fees | Operating segments | Fintech
Disaggregation of Revenue [Line Items]
Revenue	48	38
License and termination fees | Operating segments | Payments
Disaggregation of Revenue [Line Items]
Revenue	26	13
License and termination fees | Corporate and Other
Disaggregation of Revenue [Line Items]
Revenue	0	0
Output solutions postage
Disaggregation of Revenue [Line Items]
Revenue	239	205
Output solutions postage | Operating segments | Acceptance
Disaggregation of Revenue [Line Items]
Revenue	0	0
Output solutions postage | Operating segments | Fintech
Disaggregation of Revenue [Line Items]
Revenue	0	0
Output solutions postage | Operating segments | Payments
Disaggregation of Revenue [Line Items]
Revenue	0	0
Output solutions postage | Corporate and Other
Disaggregation of Revenue [Line Items]
Revenue	239	205
Other
Disaggregation of Revenue [Line Items]
Revenue	87	87
Other | Operating segments | Acceptance
Disaggregation of Revenue [Line Items]
Revenue	6	10
Other | Operating segments | Fintech
Disaggregation of Revenue [Line Items]
Revenue	62	59
Other | Operating segments | Payments
Disaggregation of Revenue [Line Items]
Revenue	19	18
Other | Corporate and Other
Disaggregation of Revenue [Line Items]
Revenue	$ 0	$ 0

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