Quarterly report pursuant to Section 13 or 15(d)

Derivatives - Derivative Valuation Adjustments (Details)

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Derivatives - Derivative Valuation Adjustments (Details) (USD $)
 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]          
Valuation adjustments on derivative assets, gross $ (139,000,000) [1] $ 335,000,000 [1] $ 179,000,000 [1] $ 347,000,000 [1]  
Valuation adjustments on derivative assets, net 51,000,000 [1] 102,000,000 [1] 252,000,000 [1] (131,000,000) [1]  
Valuation adjustments on derivative liabilities, gross 113,000,000 [2] (293,000,000) [2] 29,000,000 [2] 159,000,000 [2]  
Valuation adjustments on derivative liabilities, net 68,000,000 [2] (292,000,000) [2] (16,000,000) [2] 126,000,000 [2]  
Cumulative credit valuation adjustment 1,400,000,000   1,400,000,000   1,600,000,000
Cumulative debit valuation adjustment $ 800,000,000   $ 800,000,000   $ 800,000,000
[1] At September 30, 2014 and December 31, 2013, the cumulative CVA reduced the derivative assets balance by $1.4 billion and $1.6 billion.
[2] At both September 30, 2014 and December 31, 2013, the cumulative DVA reduced the derivative liabilities balance by $0.8 billion.