v3.3.1.900
Derivatives And Hedging Activities Effect of Derivative Instruments in Consolidated Statement of Operations (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Designated as Hedging Instrument      
Derivative Instruments, Gain (Loss) [Line Items]      
Loss Recognized in OCI (Effective Portion) $ (148) $ (124) $ (14)
Loss Reclassified from OCI into Income (Effective Portion) (113) (13)  
Gain Reclassified from OCI into Income (Effective Portion)     3
Gain Recognized in Income (Ineffective Portion Excluded from Effectiveness Testing) 0 1 0
Designated as Hedging Instrument | Commodity Derivative      
Derivative Instruments, Gain (Loss) [Line Items]      
Loss Recognized in OCI (Effective Portion) (69) (38) (25)
Loss Reclassified from OCI into Income (Effective Portion) (42) (17) (22)
Gain Recognized in Income (Ineffective Portion Excluded from Effectiveness Testing) 0 0 0
Designated as Hedging Instrument | Foreign Currency Derivative      
Derivative Instruments, Gain (Loss) [Line Items]      
Loss Recognized in OCI (Effective Portion) (79) (86)  
Gain Recognized in OCI (Effective Portion)     11
Loss Reclassified from OCI into Income (Effective Portion) (71)    
Gain Reclassified from OCI into Income (Effective Portion)   4 25
Gain Recognized in Income (Ineffective Portion Excluded from Effectiveness Testing) 0 1 0
Not Designated as Hedging Instrument      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative, Loss Recognized in Income (23)    
Derivative, Gain Recognized in Income   21 1
Not Designated as Hedging Instrument | Commodity Derivative      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative, Loss Recognized in Income (3)    
Derivative, Gain Recognized in Income   0 0
Not Designated as Hedging Instrument | Foreign Currency Derivative      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative, Loss Recognized in Income $ (20)    
Derivative, Gain Recognized in Income   $ 21 [1] $ 1
[1] Primarily relates to amounts recognized in other income, which offset the losses recognized due to the remeasurement of intercompany loans.