Derivatives - Derivatives Designated as Accounting Hedges - Fair Value Hedges (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||||||||||
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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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]
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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]
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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]
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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]
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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] | ||||||||||
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