Annual report pursuant to Section 13 and 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
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Effect of Fair Value Hedges on Results of Operations [Abstract]      
Derivative $ (5,169) $ (1,687) $ (6,206)
Hedged Item 4,181 552 4,448
Hedge Ineffectiveness (988) (1,135) (1,758)
Interest Rate Risk On Long-Tern Debt [Member] | Interest Expense [Member]
      
Effect of Fair Value Hedges on Results of Operations [Abstract]      
Derivative (4,704) [1] (195) [1] 4,384 [1]
Hedged Item 3,925 [1] (770) [1] (4,969) [1]
Hedge Ineffectiveness (779) [1] (965) [1] (585) [1]
Interest Rate and Foreign Currency Risk on Long-Term Debt [Member] | Interest Expense [Member]
      
Effect of Fair Value Hedges on Results of Operations [Abstract]      
Derivative (1,291) [1] (1,482) [1] 780 [1]
Hedged Item 1,085 [1] 1,225 [1] (1,057) [1]
Hedge Ineffectiveness (206) [1] (257) [1] (277) [1]
Interest Rate Risk on Available-For-Sale Securities [Member] | Interest Income [Member]
      
Effect of Fair Value Hedges on Results of Operations [Abstract]      
Derivative 839 [2] (4) [2] (11,386) [2]
Hedged Item (840) [2] 91 [2] 10,490 [2]
Hedge Ineffectiveness (1) [2] 87 [2] (896) [2]
Commodity Contract [Member] | Trading Account Profits (Losses) [Member]
      
Effect of Fair Value Hedges on Results of Operations [Abstract]      
Derivative (13) [3] (6) [3] 16 [3]
Hedged Item 11 [3] 6 [3] (16) [3]
Hedge Ineffectiveness $ (2) [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. Hedged AFS securities positions were sold during 2013 and the related hedges were terminated.
[3] Amounts relating to commodity inventory are recorded in trading account profits.