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Derivatives - Economic Hedges (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Jun. 30, 2014
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Jun. 30, 2013
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Jun. 30, 2014
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Jun. 30, 2013
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| Summary of Derivative Instruments by Risk Exposure [Abstract] | ||||||||||||||||
| Interest rate risk on mortgage banking income | $ 196 | [1] | $ (464) | [1] | $ 376 | [1] | $ (497) | [1] | ||||||||
| Credit risk on loans | (27) | [2] | (11) | [2] | (33) | [2] | (7) | [2] | ||||||||
| Interest rate and foreign currency risk on ALM activities | (713) | [3] | 1,113 | [3] | (1,311) | [3] | 508 | [3] | ||||||||
| Price risk on restricted stock awards | (338) | [4] | 124 | [4] | 26 | [4] | 240 | [4] | ||||||||
| Other | (1) | (8) | (4) | (11) | ||||||||||||
| Gain (Loss) On Derivative Instrument, Interest Rate Lock Commitments On Loans Held For Sale | $ 225 | $ 132 | $ 398 | $ 539 | ||||||||||||
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