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Fair Value Disclosures (Net Gains (Losses) Due To Changes In Fair Value For Items Measured At Fair Value Pursuant To The Fair Value Option Election) (Details) (USD $)
In Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
|
Jun. 30, 2011
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Jun. 30, 2010
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Jun. 30, 2011
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Jun. 30, 2010
|
|
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Principal Transactions-Trading [Member] | Deposits [Member]
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| Net gains (losses) due to changes in fair value | $ 18 | $ 10 | $ 31 | $ (15) |
|
Principal Transactions-Trading [Member] | Commercial Paper And Other Short-Term Borrowings [Member]
|
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| Net gains (losses) due to changes in fair value | 49 | 55 | 44 | 68 |
|
Principal Transactions-Trading [Member] | Securities Sold Under Agreements To Repurchase [Member]
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| Net gains (losses) due to changes in fair value | 2 | |||
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Principal Transactions-Trading [Member] | Long-Term Borrowings [Member]
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| Net gains (losses) due to changes in fair value | (42) | 2,409 | (1,308) | 2,527 |
|
Interest Expense On Borrowings [Member] | Deposits [Member]
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| Net gains (losses) due to changes in fair value | (30) | (45) | (60) | (93) |
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Interest Expense On Borrowings [Member] | Long-Term Borrowings [Member]
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| Net gains (losses) due to changes in fair value | (270) | (285) | (560) | (484) |
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Deposits [Member]
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| Net gains (losses) due to changes in fair value | (12) | (35) | (29) | (108) |
|
Commercial Paper And Other Short-Term Borrowings [Member]
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| Net gains (losses) due to changes in fair value | 49 | 55 | 44 | 68 |
|
Securities Sold Under Agreements To Repurchase [Member]
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| Net gains (losses) due to changes in fair value | 2 | |||
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Long-Term Borrowings [Member]
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| Net gains (losses) due to changes in fair value | $ (312) | $ 2,124 | $ (1,868) | $ 2,043 |