Quarterly report pursuant to Section 13 or 15(d)

Derivatives - Net Investment and Economic Hedges (Details)

v2.4.0.8
Derivatives - Net Investment and Economic Hedges (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Foreign Exchange Risk [Member]
Jun. 30, 2012
Foreign Exchange Risk [Member]
Jun. 30, 2013
Foreign Exchange Risk [Member]
Jun. 30, 2012
Foreign Exchange Risk [Member]
Jun. 30, 2013
Net Investment Hedging [Member]
Foreign Exchange Risk [Member]
Jun. 30, 2012
Net Investment Hedging [Member]
Foreign Exchange Risk [Member]
Jun. 30, 2013
Net Investment Hedging [Member]
Foreign Exchange Risk [Member]
Jun. 30, 2012
Net Investment Hedging [Member]
Foreign Exchange Risk [Member]
Jun. 30, 2013
Trading Account Assets [Member]
Net Investment Hedging [Member]
Designated as Hedging Instrument [Member]
Dec. 31, 2012
Trading Account Assets [Member]
Net Investment Hedging [Member]
Designated as Hedging Instrument [Member]
Jun. 30, 2013
Trading Liabilities [Member]
Net Investment Hedging [Member]
Designated as Hedging Instrument [Member]
Dec. 31, 2012
Trading Liabilities [Member]
Net Investment Hedging [Member]
Designated as Hedging Instrument [Member]
Net investment hedges of foreign operations [Abstract]                                
Gains (losses) Recognized in Accumulated OCI                 $ 563 $ 555 $ 1,608 $ 110        
Gains (losses) in Income Reclassified from Accumulated OCI                 3 [1] 4 [1] (91) [1] (37) [1]        
Hedge Ineffectivenes and Amounts Excluded from Effectiveness Testing         (54) [1] (100) [1] (78) [1] (98) [1]                
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Assets, Fair Value                         622 [1] 425 [1]    
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Liabilities, Fair Value                             375 [1] 618 [1]
Notional Amount of Derivative Instruments Designated as Net Investment Hedges                         23,655 [1] 5,140 [1] 5,603 [1] 19,391 [1]
Net gains (losses) on economic hedges [Abstract]                                
Interest rate risk (33) [2] 17 [2] (41) [2] 11 [2]                        
Foreign currency risk 47 [2] (703) [2] (468) [2] (504) [2]                        
Credit risk $ (8) [2] $ 18 [2] $ 1 [2] $ (31) [2]                        
[1] Amounts are recorded in other revenues and are attributable to certain legal entity liquidations.
[2] Amounts are recorded in other revenues and interest expense.