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Service Fees and Other Revenue and Other Expenses (Details 1) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Other Fees and Commissions and Other Expenses [Abstract]      
Data processing and equipment $ 2,606 $ 2,431 $ 2,334
Professional services 2,074 1,958 1,789
Net unrealized and realized losses (gains) on Amex Ventures investments 302 (767) (152)
Other 1,499 1,195 1,354
Total Other expenses $ 6,481 $ 4,817 $ 5,325