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 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Effect of Fair Value Hedges on Results of Operations [Abstract]        
Derivative $ (2,112) $ 679 $ (767) $ (3,988)
Hedged Item 1,857 (977) 57 3,222
Hedge Ineffectiveness (255) (298) (710) (766)
Interest rate risk on long-term debt | Interest expense
       
Effect of Fair Value Hedges on Results of Operations [Abstract]        
Derivative (489) [1] (313) [1] 612 [1] (3,696) [1]
Hedged Item 265 [1] 81 [1] (1,239) [1] 3,114 [1]
Hedge Ineffectiveness (224) [1] (232) [1] (627) [1] (582) [1]
Interest rate and foreign currency risk on long-term debt | Interest expense
       
Effect of Fair Value Hedges on Results of Operations [Abstract]        
Derivative (1,631) [1] 991 [1] (1,368) [1] (1,129) [1]
Hedged Item 1,620 [1] (1,059) [1] 1,305 [1] 945 [1]
Hedge Ineffectiveness (11) [1] (68) [1] (63) [1] (184) [1]
Interest rate risk on AFS securities | Interest income
       
Effect of Fair Value Hedges on Results of Operations [Abstract]        
Derivative 1 [2] 0 [2] (20) [2] 836 [2]
Hedged Item (21) [2] 0 [2] (5) [2] (837) [2]
Hedge Ineffectiveness (20) [2] 0 [2] (25) [2] (1) [2]
Price risk on commodity inventory | Trading gain (loss)
       
Effect of Fair Value Hedges on Results of Operations [Abstract]        
Derivative 7 [3] 1 [3] 9 [3] 1 [3]
Hedged Item (7) [3] 1 [3] (4) [3] 0 [3]
Hedge Ineffectiveness   $ 2 [3] $ 5 [3] $ 1 [3]
[1] Amounts are recorded in interest expense on long-term debt and in other income.
[2] Amounts are recorded in interest income on debt securities.
[3] Amounts relating to commodity inventory are recorded in trading account profits.