Quarterly report pursuant to Section 13 or 15(d)

Derivatives - Economic Hedges (Details)

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Derivatives - Economic Hedges (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Derivative [Line Items]    
Gain (Loss) On Derivative Instrument, Interest Rate Lock Commitments On Loans Held For Sale $ 547 $ 926
Summary of Derivative Instruments by Risk Exposure [Abstract]    
Price risk on mortgage banking production income 589 [1],[2] (55) [1],[2]
Interest rate risk on mortgage banking servicing income (203) [1] (145) [1]
Credit risk on loans (57) [3] (30) [3]
Interest rate and foreign currency risk on long-term debt and other foreign exchange transactions 376 [4] 3,394 [4]
Price Risk on Restricted Stock Awards 473 [5] (7) [5]
Other 9 (3)
Gain Loss On Economic Hedges $ 1,187 $ 3,154
[1] Net gains (losses) on these derivatives are recorded in mortgage banking income.
[2] Includes net gains on interest rate lock commitments related to the origination of mortgage loans that are held-for-sale, which are considered derivative instruments, of $547 million and $926 million for the three months ended March 31, 2012 and 2011.
[3] Net losses on these derivatives are recorded in other income (loss).
[4] The majority of the balance is related to the revaluation of economic hedges of foreign currency-denominated debt which is recorded in other income (loss).
[5] Gains (losses) on these derivatives are recorded in personnel expense.