XML 29 R133.htm IDEA: XBRL DOCUMENT v2.4.0.6
Guarantee Arrangements and Pledged Assets - Carrying Value and Contractual Amounts of our Sell Protection Credit Derivatives and Major Off-Balance Sheet Guarantee Arrangements (Detail) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Guarantor Obligations [Line Items]    
Carrying Value $ (1,194) $ (7,759)
Notional/Maximum Exposure to Loss 272,655 338,865
Credit derivatives [Member]
   
Guarantor Obligations [Line Items]    
Carrying Value (1,194) (7,759)
Notional/Maximum Exposure to Loss 262,985 330,395
Financial standby letters of credit, net of participations [Member]
   
Guarantor Obligations [Line Items]    
Notional/Maximum Exposure to Loss 5,097 4,705
Performance (non-financial) guarantees [Member]
   
Guarantor Obligations [Line Items]    
Notional/Maximum Exposure to Loss 3,023 3,088
Liquidity asset purchase agreements [Member]
   
Guarantor Obligations [Line Items]    
Notional/Maximum Exposure to Loss $ 1,550 $ 677