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Changes in Accumulated Other Comprehensive Income (Details 1) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Other non-interest revenue | $ 2,274 | $ 2,425 | $ 2,164
Reclassification out of Accumulated Other Comprehensive Income [Member] | Net Unrealized Investment Gains (Losses) on Investment Securities [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Other non-interest revenue | (145) |  |
Income tax provision for other non-interest revenue | 52 |  |
Other non-interest revenue, net of taxes | $ (93) |  |

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- Definition Represents other forms of revenue earned, excluding interest, which is not otherwise specified in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.4) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 + Details
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