Derivatives (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 31, 2013
Interest expense
|
Mar. 31, 2012
Interest expense
|
Mar. 31, 2013
Interest expense
Fair Value Hedging [Member]
|
Mar. 31, 2012
Interest expense
Fair Value Hedging [Member]
|
Mar. 31, 2013
Interest rate risk on foreign currency denominated long-term borrowings
Interest expense
|
Mar. 31, 2012
Interest rate risk on foreign currency denominated long-term borrowings
Interest expense
|
Mar. 31, 2013
Interest rate risk on foreign currency denominated long-term borrowings
Interest expense
Fair Value Hedging [Member]
|
Mar. 31, 2012
Interest rate risk on foreign currency denominated long-term borrowings
Interest expense
Fair Value Hedging [Member]
|
Mar. 31, 2013
Commodity price risk on commodity inventory
Principal Transactions
|
Mar. 31, 2013
Commodity price risk on commodity inventory
Principal Transactions
Fair Value Hedging [Member]
|
Mar. 31, 2012
Commodity price risk on commodity inventory
Principal Transactions
Fair Value Hedging [Member]
|
Mar. 31, 2013
Long-term Borrowings [Member]
Fair Value Hedging [Member]
Designated as hedging instrument
|
Dec. 31, 2012
Long-term Borrowings [Member]
Fair Value Hedging [Member]
Designated as hedging instrument
|
Mar. 31, 2013
Long-term Borrowings [Member]
Fair Value Hedging [Member]
Designated as hedging instrument
Trading Account Assets [Member]
|
Dec. 31, 2012
Long-term Borrowings [Member]
Fair Value Hedging [Member]
Designated as hedging instrument
Trading Account Assets [Member]
|
Mar. 31, 2013
Long-term Borrowings [Member]
Fair Value Hedging [Member]
Designated as hedging instrument
Trading Liabilities [Member]
|
Dec. 31, 2012
Long-term Borrowings [Member]
Fair Value Hedging [Member]
Designated as hedging instrument
Trading Liabilities [Member]
|
Mar. 31, 2013
Commodity risk
Fair Value Hedging [Member]
Designated as hedging instrument
|
Dec. 31, 2012
Commodity risk
Fair Value Hedging [Member]
Designated as hedging instrument
|
Mar. 31, 2013
Commodity risk
Fair Value Hedging [Member]
Designated as hedging instrument
Trading Account Assets [Member]
|
Dec. 31, 2012
Commodity risk
Fair Value Hedging [Member]
Designated as hedging instrument
Trading Account Assets [Member]
|
Mar. 31, 2013
Commodity risk
Fair Value Hedging [Member]
Designated as hedging instrument
Trading Liabilities [Member]
|
Dec. 31, 2012
Commodity risk
Fair Value Hedging [Member]
Designated as hedging instrument
Trading Liabilities [Member]
|
||||||||||||||||
Derivative Instruments, Gain (Loss) [Line Items] | ||||||||||||||||||||||||||||||||||||||
Derivative | $ (349) | [1] | $ (411) | [1] | $ (521) | [1] | $ 88 | [1] | $ (3) | [1] | $ 23 | [1] | ||||||||||||||||||||||||||
Hedged Item | 247 | [1],[2] | 274 | [1],[2] | 472 | [1],[2] | (115) | [1],[2] | 3 | [1],[2] | (23) | [1],[2] | ||||||||||||||||||||||||||
Hedge Ineffectiveness | (102) | [1] | (137) | [1] | (49) | [1] | (27) | [1] | [1] | |||||||||||||||||||||||||||||
Fair Value Hedge Assets | 5,133 | 5,706 | 24 | 48 | ||||||||||||||||||||||||||||||||||
Fair Value Hedge Liabilities | 934 | 664 | 0 | 2 | ||||||||||||||||||||||||||||||||||
Notional Amount of Fair Value Hedge Instruments | $ 32,369 | $ 36,932 | $ 10,429 | $ 9,676 | $ 74 | $ 124 | $ 0 | $ 3 | ||||||||||||||||||||||||||||||
|