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Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Line Items]
Revenue	$ 5,516	$ 5,107	$ 10,646	$ 9,990
Operating segments
Disaggregation of Revenue [Line Items]
Revenue	5,196	4,789	9,985	9,327
Operating segments | Merchant Segment
Disaggregation of Revenue [Line Items]
Revenue	2,644	2,410	5,016	4,663
Operating segments | Financial Segment
Disaggregation of Revenue [Line Items]
Revenue	2,552	2,379	4,969	4,664
Corporate and Other
Disaggregation of Revenue [Line Items]
Revenue	$ 320	$ 318	$ 661	$ 663
Geographic Concentration Risk | Non-US | Revenue from Contract with Customer Benchmark
Disaggregation of Revenue [Line Items]
Percentage of concentration risk	16.00%	15.00%	15.00%	15.00%
Small Business | Operating segments | Merchant Segment
Disaggregation of Revenue [Line Items]
Revenue	$ 1,774	$ 1,604	$ 3,368	$ 3,092
Enterprise | Operating segments | Merchant Segment
Disaggregation of Revenue [Line Items]
Revenue	587	542	1,089	1,005
Processing | Operating segments | Merchant Segment
Disaggregation of Revenue [Line Items]
Revenue	283	264	559	566
Digital Payments | Operating segments | Financial Segment
Disaggregation of Revenue [Line Items]
Revenue	1,051	987	2,046	1,907
Issuing | Operating segments | Financial Segment
Disaggregation of Revenue [Line Items]
Revenue	876	766	1,690	1,527
Banking | Operating segments | Financial Segment
Disaggregation of Revenue [Line Items]
Revenue	$ 625	$ 626	$ 1,233	$ 1,230

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