Quarterly report pursuant to Section 13 or 15(d)

Derivatives - Economic Hedges (Details)

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Derivatives - Economic Hedges (Details) (USD $)
 3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Derivative [Line Items]        
Gain (Loss) On Derivative Instrument, Interest Rate Lock Commitments On Loans Held For Sale $ 1,000,000,000 $ 1,200,000,000 $ 2,400,000,000 $ 3,400,000,000
Summary of Derivative Instruments by Risk Exposure [Abstract]        
Price risk on mortgage banking production income 850,000,000 [1],[2] 1,158,000,000 [1],[2] 2,240,000,000 [1],[2] 2,324,000,000 [1],[2]
Market-related Risk on Mortgage Banking Servicing Income 822,000,000 [1] 2,678,000,000 [1] 1,970,000,000 [1] 3,063,000,000 [1]
Credit risk on loans (32,000,000) [3] 66,000,000 [3] (71,000,000) [3] 38,000,000 [3]
Interest rate and foreign currency risk on long-term debt and other foreign exchange transactions (309,000,000) [4] (3,616,000,000) [4] (987,000,000) [4] 1,604,000,000 [4]
Price Risk on Restricted Stock Awards 142,000,000 [5] (392,000,000) [5] 392,000,000 [5] (556,000,000) [5]
Other 16,000,000 104,000,000 105,000,000 172,000,000
Gain Loss On Economic Hedges $ 1,489,000,000 $ (2,000,000) $ 3,649,000,000 $ 6,645,000,000
[1] Net gains 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 $1.0 billion and $2.4 billion for the three and nine months ended September 30, 2012 compared to $1.2 billion and $3.4 billion for the same periods in 2011.
[3] Net gains (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). The offsetting revaluation of the foreign currency-denominated debt, while not included in the table above, is also recorded in other income (loss).
[5] Gains (losses) on these derivatives are recorded in personnel expense.