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Changes in Accumulated Other Comprehensive (Loss) Income (Details 1) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Other non-interest revenue | $ 504 | $ 593 | $ 1,493 | $ 1,679
Interest expense on long-term debt and other | 274 | 329 | 886 | 1,026
Total other, net expense | (1,635) | (1,596) | (4,569) | (4,393)
Net Unrealized Investment Gains (Losses) on Investment Securities [Member] |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Other non-interest revenue | 1 | 21 | 1 | 111
Income tax provision for other non-interest revenue | 0 | (8) | 0 | (40)
Other non-interest revenue, net of taxes | 1 | 13 | 1 | 71
Increase (decrease) due to amounts reclassified into earnings | 1 | 13 | 1 | 71
Foreign Currency Translation Adjustments [Member] |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Total other, net expense | 0 | 0 | 1 | (8)
Income tax benefit for other, net expense | 0 | (1) | 0 | 3
Increase (decrease) due to amounts reclassified into earnings | 0 | (1) | 1 | (5)
Accumulated Other Comprehensive (Loss) Income [Member] |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Increase (decrease) due to amounts reclassified into earnings | $ 1 | $ 12 | $ 2 | $ 66

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