Quarterly report pursuant to Section 13 or 15(d)

Hedging Transactions and Derivative Financial Instruments (Details)

v2.3.0.15
Hedging Transactions and Derivative Financial Instruments (Details) (USD $)
In Millions
 9 Months Ended
Sep. 30, 2011
Dec. 31, 2010
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, assets, designated and qualified, part of hedging relationship, fair value $ 434 $ 36
Derivative instruments, liabilities, designated and qualified, part of hedging relationship, fair value 97 240
Derivative instruments, assets, not designated and qualified, part of hedging relationship, fair value 174 138
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value 167 144
Cash Flow Hedging Strategy    
Maximum length of time over which future cash flow exposures are hedged (in years) 3  
Notional value, derivatives designated and qualifying, foreign currency cash flow hedges 6,223 3,968
Notional value, derivatives designated and qualifying, commodity cash flow hedges 24 28
Commodity contracts | Prepaid expenses and other assets
    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, assets, designated and qualified, part of hedging relationship, fair value 3 4
Derivative instruments, assets, not designated and qualified, part of hedging relationship, fair value 60 56
Commodity contracts | Accounts payable and accrued expenses
    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, liabilities, designated and qualified, part of hedging relationship, fair value 3 2
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value 118 0
Interest rate swaps | Other Assets [Member]
    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, assets, designated and qualified, part of hedging relationship, fair value 242 0
Interest rate swaps | Other Liabilities [Member]
    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, liabilities, designated and qualified, part of hedging relationship, fair value 0 97
Other derivative instruments | Prepaid expenses and other assets
    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, assets, not designated and qualified, part of hedging relationship, fair value 4 17
Other derivative instruments | Accounts payable and accrued expenses
    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value 4 0
Foreign currency contracts | Prepaid expenses and other assets
    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, assets, designated and qualified, part of hedging relationship, fair value 189 32
Derivative instruments, assets, not designated and qualified, part of hedging relationship, fair value 110 65
Foreign currency contracts | Accounts payable and accrued expenses
    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, liabilities, designated and qualified, part of hedging relationship, fair value 94 141
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value $ 45 $ 144