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Non-Interest Revenue and Expense Detail (Details 2) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Details Of Certain Statements Of Income Lines Details [Abstract] |  |  |  |
Professional services | $ 687 | $ 731 | $ 1,966 | $ 2,240
Occupancy and equipment | 523 | 432 | 1,372 | 1,361
Card and merchant-related fraud Losses | 64 | 96 | 247 | 282
Communications | 84 | 91 | 257 | 285
Gain on business travel joint venture | 0 | (15) | 0 | (641)
Other | 277 | 261 | 727 | 866
Total other, net | $ 1,635 | $ 1,596 | $ 4,569 | $ 4,393

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