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Changes in Accumulated Other Comprehensive (Loss) Income (Details 1) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2016 | Mar. 31, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Other non-interest revenue | $ 486 | $ 468
Interest expense on long-term debt and other | 275 | 307
Other expenses | 1,420 | 1,399
Net Unrealized Gains (Losses) on Investment Securities [Member] |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Other non-interest revenue | 4 | 0
Income tax provision for other non-interest revenue | (2) | 0
(Decrease) increase due to amounts reclassified into earnings | (2) | 0
Foreign Currency Translation Adjustments [Member] |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
(Decrease) increase due to amounts reclassified into earnings | 0 | 0
Accumulated Other Comprehensive Loss [Member] |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
(Decrease) increase due to amounts reclassified into earnings | $ (2) | $ 0

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