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Details of Certain Consolidated Statements of Income Lines (Details 3) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011
Component of Operating Other Cost and Expense [Line Items] |  |  |  |
Total other, net expense | $ 963 | $ 575 | $ 1,747 | $ 1,142
Occupancy and equipment [Member] |  |  |  |
Component of Operating Other Cost and Expense [Line Items] |  |  |  |
Total other, net expense | 446 | 391 | 884 | 785
Communications [Member] |  |  |  |
Component of Operating Other Cost and Expense [Line Items] |  |  |  |
Total other, net expense | 95 | 92 | 191 | 187
Mastercard and Visa settlements [Member] |  |  |  |
Component of Operating Other Cost and Expense [Line Items] |  |  |  |
Total other, net expense | 0 | (213) | 0 | (426)
Other net expenses [Member] |  |  |  |
Component of Operating Other Cost and Expense [Line Items] |  |  |  |
Total other, net expense | $ 422 | $ 305 | $ 672 | $ 596

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- Definition Other noninterest expenses that are not separately presented in any other noninterest expense category. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.14) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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