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Non-Interest Revenue and Expense Detail (Details 3) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013
Details Of Certain Statements Of Income Lines Details [Abstract] |  |  |  |
Professional services | $ 817 | $ 763 | $ 1,509 | $ 1,479
Occupancy and equipment | 467 | 460 | 929 | 932
Card-Related Fraud Losses | 102 | 75 | 186 | 156
Communications | 101 | 92 | 194 | 188
Gain on business travel joint venture transaction | (626) | 0 | (626) | 0
Other net expenses | 387 | 219 | 605 | 465
Total other, net expense | $ 1,248 | $ 1,609 | $ 2,797 | $ 3,220

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- Definition The aggregate amount of communications and data processing expenses. + References No definition available. + Details
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