Quarterly report pursuant to Section 13 or 15(d)

Derivatives - Derivatives Designated as Accounting Hedges - Fair Value Hedges (Details)

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Derivatives - Derivatives Designated as Accounting Hedges - Fair Value Hedges (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Effect of Fair Value Hedges on Results of Operations [Abstract]    
Derivative $ 488 $ (1,644)
Hedged Item (702) 1,384
Hedge Ineffectiveness (214) (260)
Interest rate risk on long-terrn debt [Member] | Interest rate risk on long-term debt [Member]
   
Effect of Fair Value Hedges on Results of Operations [Abstract]    
Derivative 366 [1] (953) [1]
Hedged Item (560) [1] 771 [1]
Hedge Ineffectiveness (194) [1] (182) [1]
Interest rate and foreign currency risk on long-term debt [Member] | Interest rate risk on long-term debt [Member]
   
Effect of Fair Value Hedges on Results of Operations [Abstract]    
Derivative 118 [1] (1,538) [1]
Hedged Item (144) [1] 1,456 [1]
Hedge Ineffectiveness (26) [1] (82) [1]
Interest rate risk on AFS securities [Member] | Interest rate risk on AFS securities [Member]
   
Effect of Fair Value Hedges on Results of Operations [Abstract]    
Derivative 2 [2] 850 [2]
Hedged Item (3) [2] (846) [2]
Hedge Ineffectiveness (1) [2] 4 [2]
Commodity Contracts [Member] | Commodity price risk on commodity inventory [Member]
   
Effect of Fair Value Hedges on Results of Operations [Abstract]    
Derivative 2 [3] (3) [3]
Hedged Item 5 [3] 3 [3]
Hedge Ineffectiveness $ 7 [3]    [3]
[1] Amounts are recorded in interest expense on long-term debt and in other income (loss).
[2] Amounts are recorded in interest income on debt securities.
[3] Amounts relating to commodity inventory are recorded in trading account profits.