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Outstanding Loans and Leases - Impaired Loans Commercial Loans (Details) (Commercial Portfolio Segment [Member], USD $)
In Millions, unless otherwise specified |
3 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
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Mar. 31, 2012
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Mar. 31, 2011
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Dec. 31, 2011
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| Financing Receivable, Impaired [Line Items] | ||||||||||
| Real Estate Acquired Through Foreclosure | $ 510 | $ 612 | ||||||||
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Commercial Real Estate Receivable [Member]
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| Financing Receivable, Impaired [Line Items] | ||||||||||
| Unpaid Principal Balance | 5,304 | 5,916 | ||||||||
| Carrying Value | 3,976 | 4,479 | ||||||||
| Related Allowance | 118 | 135 | ||||||||
| Average Carrying Value | 4,229 | 5,725 | ||||||||
| Interest Income Recognized | 10 | [1] | 3 | [1] | ||||||
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Small Business Commercial Receivable [Member]
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| Financing Receivable, Impaired [Line Items] | ||||||||||
| Unpaid Principal Balance | 480 | [2] | 531 | [2] | ||||||
| Carrying Value | 457 | [2] | 503 | [2] | ||||||
| Related Allowance | 134 | [2] | 172 | [2] | ||||||
| Average Carrying Value | 472 | [2] | 817 | [2] | ||||||
| Interest Income Recognized | 4 | [1],[2] | 7 | [1],[2] | ||||||
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Commercial [Member]
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| Financing Receivable, Impaired [Line Items] | ||||||||||
| Related Allowance | 205 | 232 | ||||||||
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U.S. Commercial | Commercial Financing Receivable [Member]
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| Financing Receivable, Impaired [Line Items] | ||||||||||
| Unpaid Principal Balance | 3,979 | 4,136 | ||||||||
| Carrying Value | 2,963 | 2,972 | ||||||||
| Average Carrying Value | 2,955 | 3,359 | ||||||||
| Interest Income Recognized | 19 | [1] | 1 | [1] | ||||||
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Non-U.S. Commercial | Commercial Financing Receivable [Member]
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| Financing Receivable, Impaired [Line Items] | ||||||||||
| Unpaid Principal Balance | 509 | 524 | ||||||||
| Carrying Value | 156 | 159 | ||||||||
| Related Allowance | 8 | 6 | ||||||||
| Average Carrying Value | 159 | 223 | ||||||||
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Impaired Financing Receivable with No Related Allowance [Domain] | Commercial Real Estate Receivable [Member]
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| Financing Receivable, Impaired [Line Items] | ||||||||||
| Unpaid Principal Balance | 2,097 | 2,587 | ||||||||
| Carrying Value | 1,851 | 2,095 | ||||||||
| Average Carrying Value | 1,973 | 1,785 | ||||||||
| Interest Income Recognized | 4 | [1] | 1 | [1] | ||||||
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Impaired Financing Receivable with No Related Allowance [Domain] | U.S. Commercial | Commercial Financing Receivable [Member]
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| Financing Receivable, Impaired [Line Items] | ||||||||||
| Unpaid Principal Balance | 1,363 | 1,482 | ||||||||
| Carrying Value | 1,085 | 985 | ||||||||
| Average Carrying Value | 1,035 | 406 | ||||||||
| Interest Income Recognized | 8 | [1] | 0 | [1] | ||||||
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Impaired Financing Receivable with No Related Allowance [Domain] | Non-U.S. Commercial | Commercial Financing Receivable [Member]
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| Financing Receivable, Impaired [Line Items] | ||||||||||
| Unpaid Principal Balance | 237 | 216 | ||||||||
| Carrying Value | 127 | 101 | ||||||||
| Average Carrying Value | 114 | 70 | ||||||||
| Interest Income Recognized | 0 | [1] | ||||||||
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Impaired Financing Receivable with Related Allowance [Domain] | Commercial Real Estate Receivable [Member]
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| Financing Receivable, Impaired [Line Items] | ||||||||||
| Unpaid Principal Balance | 3,207 | 3,329 | ||||||||
| Carrying Value | 2,125 | 2,384 | ||||||||
| Related Allowance | 118 | 135 | ||||||||
| Average Carrying Value | 2,256 | 3,940 | ||||||||
| Interest Income Recognized | 6 | [1] | 2 | [1] | ||||||
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Impaired Financing Receivable with Related Allowance [Domain] | Small Business Commercial Receivable [Member]
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| Financing Receivable, Impaired [Line Items] | ||||||||||
| Unpaid Principal Balance | 480 | [2] | 531 | [2] | ||||||
| Carrying Value | 457 | [2] | 503 | [2] | ||||||
| Related Allowance | 134 | [2] | 172 | [2] | ||||||
| Average Carrying Value | 472 | [2] | 817 | [2] | ||||||
| Interest Income Recognized | 4 | [1],[2] | 7 | [1],[2] | ||||||
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Impaired Financing Receivable with Related Allowance [Domain] | Commercial [Member]
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| Financing Receivable, Impaired [Line Items] | ||||||||||
| Related Allowance | 232 | |||||||||
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Impaired Financing Receivable with Related Allowance [Domain] | U.S. Commercial | Commercial Financing Receivable [Member]
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| Financing Receivable, Impaired [Line Items] | ||||||||||
| Unpaid Principal Balance | 2,616 | 2,654 | ||||||||
| Carrying Value | 1,878 | 1,987 | ||||||||
| Related Allowance | 205 | |||||||||
| Average Carrying Value | 1,920 | 2,953 | ||||||||
| Interest Income Recognized | 11 | [1] | 1 | [1] | ||||||
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Impaired Financing Receivable with Related Allowance [Domain] | Non-U.S. Commercial | Commercial Financing Receivable [Member]
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| Financing Receivable, Impaired [Line Items] | ||||||||||
| Unpaid Principal Balance | 272 | 308 | ||||||||
| Carrying Value | 29 | 58 | ||||||||
| Related Allowance | 8 | 6 | ||||||||
| Average Carrying Value | $ 45 | $ 153 | ||||||||
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