Annual report pursuant to Section 13 and 15(d)

Derivatives - Net Investment and Economic Hedges (Details)

v2.4.0.6
Derivatives - Net Investment and Economic Hedges (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Net gains (losses) on economic hedges [Abstract]      
Interest rate risk $ 15 [1] $ 185 [1] $ 314 [1]
Foreign currency risk (273) [1] (550) [1] (1,583) [1]
Credit risk (72) [1] 47 [1] (35) [1]
Foreign exchange risk
      
Net investment hedges of foreign operations [Abstract]      
Hedge Ineffectivenes and Amounts Excluded from Effectiveness Testing (133) [2] (378) [2] (211) [2]
Net investment hedging | Foreign exchange risk
      
Net investment hedges of foreign operations [Abstract]      
Gains (losses) Recognized in Accumulated OCI (150) 447 (672)
Gains (losses) in Income Reclassified from Accumulated OCI (49) [2] (43) [2] (35) [2]
Trading assets | Net investment hedging | Designated as hedging instrument
      
Net investment hedges of foreign operations [Abstract]      
Trading assets 425 690  
Notional amount of hedging derivatives 5,140 20,068  
Trading liabilities | Net investment hedging | Designated as hedging instrument
      
Net investment hedges of foreign operations [Abstract]      
Liabilities 618 492  
Notional amount of hedging derivatives 19,391 7,338  
Long-term borrowings | Net investment hedging | Designated as hedging instrument
      
Net investment hedges of foreign operations [Abstract]      
Liabilities    $ 61  
[1] Amounts are recorded in other revenues and interest expense.
[2] Amounts are recorded in other revenues.