XML 54 R39.htm IDEA: XBRL DOCUMENT v3.5.0.2
Derivatives - Fair Value (Details) - USD ($)
$ in Millions
Jun. 30, 2016
Dec. 31, 2015
Gross and net fair values of outstanding derivatives (in millions)    
Collateral received netted against derivative assets $ 0 $ 14
Collateral paid netted against derivative liabilities 15 4
Collateral deposited with clearinghouses and brokers 44 3
Cash-flow hedges | Other current assets    
Gross and net fair values of outstanding derivatives (in millions)    
Total net fair value, asset   9
Cash-flow hedges | Accrued liabilities    
Gross and net fair values of outstanding derivatives (in millions)    
Total net fair value, liability 4  
Cash-flow hedges | Other Liabilities    
Gross and net fair values of outstanding derivatives (in millions)    
Total net fair value, liability   1
Not designated as hedging instruments    
Gross and net fair values of outstanding derivatives (in millions)    
Less: counterparty netting and cash collateral, asset (85) (535)
Less: counterparty netting and cash collateral, liability (101) (525)
Total net fair value, asset 40 109
Total net fair value, liability 320 423
Not designated as hedging instruments | Other current assets    
Gross and net fair values of outstanding derivatives (in millions)    
Commodity contract derivative asset, gross 117 626
Not designated as hedging instruments | Long-term receivables and other assets, net    
Gross and net fair values of outstanding derivatives (in millions)    
Commodity contract derivative asset, gross 8 9
Not designated as hedging instruments | Accrued liabilities    
Gross and net fair values of outstanding derivatives (in millions)    
Commodity contract derivative liability, gross 190 672
Not designated as hedging instruments | Other Liabilities    
Gross and net fair values of outstanding derivatives (in millions)    
Total net fair value, liability 417 947
Not designated as hedging instruments | Deferred credits and other liabilities    
Gross and net fair values of outstanding derivatives (in millions)    
Commodity contract derivative liability, gross 227 275
Not designated as hedging instruments | Other assets    
Gross and net fair values of outstanding derivatives (in millions)    
Total net fair value, asset 125 635
Not designated as hedging instruments | Commodity Contracts    
Gross and net fair values of outstanding derivatives (in millions)    
Commodity contract derivative asset, gross 125 644
Commodity contract derivative liability, gross $ 421 $ 948