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Changes in Accumulated Other Comprehensive (Loss) Income (Details 1) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Other non-interest revenue | $ 521 | $ 585 | $ 989 | $ 1,086
Interest expense on long-term debt and other | 305 | 352 | 612 | 697
Total other, net expense | (1,535) | (1,248) | (2,934) | (2,797)
Net Unrealized Investment Gains (Losses) on Investment Securities [Member] |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Other non-interest revenue | 0 | 45 | 0 | 90
Income tax provision for other non-interest revenue | 0 | (16) | 0 | (32)
Other non-interest revenue, net of taxes | 0 | 29 | 0 | 58
Increase (decrease) due to amounts reclassified into earnings | 0 | 29 | 0 | 58
Foreign Currency Translation Adjustments [Member] |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Total other, net expense | 1 | (6) | 1 | (8)
Income tax benefit for other, net expense | 0 | 3 | 0 | 4
Increase (decrease) due to amounts reclassified into earnings | 1 | 3 | 1 | 4
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 | $ 26 | $ 1 | $ 54

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