Business Segment Information - Schedule of Segment Reporting Information (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Segment Reporting Information [Line Items]
Revenue		$ 4,883	$ 4,547
Operating income (loss)		1,181	934
Corporate and Other
Segment Reporting Information [Line Items]
Revenue		345	328
Operating income (loss)		(596)	(601)
Merchant Segment | Operating segments
Segment Reporting Information [Line Items]
Revenue		2,253	1,996
Operating income (loss)		769	592
Financial Segment | Operating segments
Segment Reporting Information [Line Items]
Revenue		2,285	2,223
Operating income (loss)		1,008	943
Processing and services revenue
Segment Reporting Information [Line Items]
Revenue	[1]	4,000	3,673
Processing and services revenue | Corporate and Other
Segment Reporting Information [Line Items]
Revenue		5	6
Processing and services revenue | Merchant Segment | Operating segments
Segment Reporting Information [Line Items]
Revenue		2,010	1,727
Processing and services revenue | Financial Segment | Operating segments
Segment Reporting Information [Line Items]
Revenue		1,985	1,940
Product revenue
Segment Reporting Information [Line Items]
Revenue		883	874
Product revenue | Corporate and Other
Segment Reporting Information [Line Items]
Revenue		340	322
Product revenue | Merchant Segment | Operating segments
Segment Reporting Information [Line Items]
Revenue		243	269
Product revenue | Financial Segment | Operating segments
Segment Reporting Information [Line Items]
Revenue		$ 300	$ 283

[1] Includes processing and other fees charged to related party investments accounted for under the equity method of $40 million and $46 million for the three months ended March 31, 2024 and 2023, respectively (see Note 19).