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Fair Value, Changes in Fair Value of Assets Recorded at Fair Value on Nonrecurring Basis (Details) (USD $)
In Millions, unless otherwise specified |
6 Months Ended | |
|---|---|---|
|
Jun. 30, 2013
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Jun. 30, 2012
|
|
| Fair Value Assets Measured On Nonrecurring Basis Increase Decrease [Line Items] | ||
| Mortgages held for sale | $ (23) | $ 38 |
| Loans held for sale | 0 | 1 |
| Loans | (1,575) | (2,624) |
| Other Assets | (151) | (179) |
| Total | (1,749) | (2,764) |
|
Commercial Portfolio Segment [Member]
|
||
| Fair Value Assets Measured On Nonrecurring Basis Increase Decrease [Line Items] | ||
| Loans | (195) | (471) |
|
Consumer Portfolio Segment [Member]
|
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| Fair Value Assets Measured On Nonrecurring Basis Increase Decrease [Line Items] | ||
| Loans | $ (1,380) | $ (2,153) |