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 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]          
Credit Valuation Gains (Losses) For Counterparty Credit Risk Related To Derivative Assets $ 266,000,000 [1] $ 143,000,000 [1] $ 318,000,000 [1] $ 12,000,000 [1]  
Credit Valuation Gains Losses Net Of Hedges Recognized In Trading Account Profits For Counterparty Credit Risk 161,000,000 [1] 62,000,000 [1] 201,000,000 [1] (233,000,000) [1]  
Credit Valuation Gain (Loss) Recognized In Trading Account Profit (Loss) Related to Changes in the Entity's Credit Quality (2,000,000) [2] 77,000,000 [2] (84,000,000) [2] 452,000,000 [2]  
Credit Valuation Gains Losses Net Of Hedges Recognized In Trading Account Profits Losses 1,000,000 [2] 39,000,000 [2] (84,000,000) [2] 418,000,000 [2]  
Decrease in Derivative Asset Value Related to Cumulative Counterparty Credit Risk Valuation 1,300,000,000   1,300,000,000   1,600,000,000
Decrease in Derivative Liability Value Related to Cumulative Counterparty Credit Risk Valuation $ 700,000,000   $ 700,000,000   $ 800,000,000
[1] At June 30, 2014 and December 31, 2013, the cumulative CVA reduced the derivative assets balance by $1.3 billion and $1.6 billion.
[2] At June 30, 2014 and December 31, 2013, the cumulative DVA reduced the derivative liabilities balance by $0.7 billion and $0.8 billion.