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Changes in Accumulated Other Comprehensive (Loss) Income (Details 1) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Other non-interest revenue | $ 409 | $ 486
Interest expense on long-term debt and other | 294 | 275
Other expenses | 1,407 | 1,420
(Decrease) increase due to amounts reclassified into earnings |  | 2
Net Unrealized Gains (Losses) on Investment Securities [Member] |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
(Decrease) increase due to amounts reclassified into earnings | 0 | (2)
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 | 0 | (2)
Reclassification out of accumulated other comprehensive income [Member] |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
(Decrease) increase due to amounts reclassified into earnings | 0 | 2
Reclassification out of accumulated other comprehensive income [Member] | Net Unrealized Gains (Losses) on Investment Securities [Member] |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Other non-interest revenue | 0 | 4
Income tax provision for other non-interest revenue | 0 | (2)
Other non-interest revenue, net of taxes | $ 0 | $ 2

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