v2.3.0.11
Derivative Instruments And Hedging Activities (Narrative) (Details) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Dec. 31, 2010
Embedded derivatives that have been bifurcated from the related structured borrowings, fair value $ 98,000,000   $ 98,000,000   $ 109,000,000
Embedded derivatives that have been bifurcated from the related structured borrowings, notional amount 4,085,000,000   4,085,000,000   4,256,000,000
Recognized gains (losses) related to changes in the fair value of bifurcated embedded derivatives 21,000,000 27,000,000 2,000,000 40,000,000  
Amount of payables associated with cash collateral received that was netted against derivative assets 53,779,000,000   53,779,000,000   61,856,000,000
Amount of receivables in respect of cash collateral paid that was netted against derivative liabilities 30,035,000,000   30,035,000,000   37,589,000,000
Cash collateral receivables, not offset against certain contracts that did not meet the definition of a derivative 413,000,000   413,000,000   435,000,000
Cash collateral payables, not offset against certain contracts that did not meet the definition of a derivative 114,000,000   114,000,000   37,000,000
Aggregate fair value of derivative contracts that contain credit-risk-related contingent features that are in a net liability position 29,003,000,000   29,003,000,000   32,567,000,000
Aggregate fair value of derivative contracts that contain credit-risk-related contingent features that are in a net liability position, posted collateral 22,813,000,000   22,813,000,000   26,904,000,000
Amount of additional collateral or termination payments that could be called by counterparties under the terms of such agreements in the event of a downgrade of the Company's long-term credit rating, related to bilateral arrangements between the Company and other parties 1,419,000,000   1,419,000,000   1,766,000,000
Purchased protection, notional amount 2,300,000,000,000   2,300,000,000,000   1,800,000,000,000
Notional amount of credit protection sold with identical underlying reference obligations 2,500,000,000,000   2,500,000,000,000   2,000,000,000,000
Purchase credit protection to economically hedge loans and lending commitments 2,860,626,000,000   2,860,626,000,000   2,294,251,000,000
Purchase credit protection to economically hedge loans and lending commitments, positive fair value 23,366,000,000   23,366,000,000   25,232,000,000
Sold credit protection to economically hedge loans and lending commitments 2,882,218,000,000   2,882,218,000,000   2,343,636,000,000
Sold credit protection to economically hedge loans and lending commitments, negative fair value (33,914,000,000)   (33,914,000,000)   (39,741,000,000)
Credit Downgrade [Member]
          
Amount of additional collateral or termination payments that could be called by counterparties under the terms of such agreements in the event of a downgrade of the Company's long-term credit rating 600,000,000   600,000,000   873,000,000
Additional Credit Downgrade [Member]
          
Amount of additional collateral or termination payments that could be called by counterparties under the terms of such agreements in the event of a downgrade of the Company's long-term credit rating $ 1,393,000,000   $ 1,393,000,000   $ 1,537,000,000
Fair Value Hedges [Member]
          
Hedging relationship is deemed effective if the fair values of the hedging instrument (derivative) and the hedged item (debt liability) change inversely within a range, lower limit 80.00%   80.00%    
Hedging relationship is deemed effective if the fair values of the hedging instrument (derivative) and the hedged item (debt liability) change inversely within a range, upper limit 125.00%   125.00%