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Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Related Party Transaction [Line Items]
Processing, administrative, and other fees	$ 4,756	$ 4,450	$ 9,303	$ 8,588
Amounts due from unconsolidated merchant alliances	3,465		3,465		$ 3,585
Equity investments | Related Party
Related Party Transaction [Line Items]
Amounts due from unconsolidated merchant alliances	36		36		$ 43
Related Party Fees | Equity investments | Related Party
Related Party Transaction [Line Items]
Processing, administrative, and other fees	45	50	91	100
Related Party Fees | Equity investments | Related Party | Merchant Alliances
Related Party Transaction [Line Items]
Processing, administrative, and other fees	45	46	91	93
Related Party Fees | Affiliated entities | Related Party | Lending Solutions Business, Investment Services Business, and InvestCloud Holdings
Related Party Transaction [Line Items]
Processing, administrative, and other fees	$ 1	$ 5	$ 2	$ 9

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