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Non-Interest Revenue and Expense Detail (Details 1) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
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Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Details Of Certain Statements Of Income Lines Details [Abstract] |  |  |  |
Global Network Services partner revenues | $ 62 | $ 82 | $ 207 | $ 261
Other | 272 | 290 | 853 | 851
Total other revenues | $ 334 | $ 372 | $ 1,060 | $ 1,112

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- Definition Represents revenues received from Global Network Service partners on use of the American Express brand name. + References No definition available. + Details
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