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Derivatives (Schedule Of Outstanding Derivatives Entered Into Hedge Inventory Or Fixed Price Purchase Commitments) (Details) | 12 Months Ended
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Dec. 31, 2015 bbl $ / bbl $ / units
Selling Contracts [Member] | Crude Oil Futures [Member] | Designated as Hedging Instrument [Member] |
Derivative [Line Items] |
Weighted average contract price per bbl | $ / bbl | 37.68
Derivative, Nonmonetary Notional Amount | 47
Selling Contracts [Member] | Crude Oil Futures [Member] | Not Designated As Hedging Instrument [Member] |
Derivative [Line Items] |
Weighted average contract price per bbl | $ / bbl | 37.94
Derivative, Nonmonetary Notional Amount | 444
Selling Contracts [Member] | Crude oil LLSWTI swap [Member] | Not Designated As Hedging Instrument [Member] |
Derivative [Line Items] |
Weighted average contract price per bbl | $ / bbl | 1.28
Derivative, Nonmonetary Notional Amount | 290
Selling Contracts [Member] | Diesel Futures [Member] | Not Designated As Hedging Instrument [Member] |
Derivative [Line Items] |
Weighted average contract price per bbl | $ / bbl | 1.30
Derivative, Nonmonetary Notional Amount | 86
Selling Contracts [Member] | Fuel Oil Futures [Member] | Not Designated As Hedging Instrument [Member] |
Derivative [Line Items] |
Weighted average contract price per bbl | $ / bbl | 26.97
Derivative, Nonmonetary Notional Amount | 165
Selling Contracts [Member] | Crude Oil Options [Member] | Not Designated As Hedging Instrument [Member] |
Derivative [Line Items] |
Derivative, Nonmonetary Notional Amount | 95
Underlying, Derivative | $ / bbl | 1.50
Buying Contracts [Member] | Crude Oil Futures [Member] | Designated as Hedging Instrument [Member] |
Derivative [Line Items] |
Weighted average contract price per bbl | $ / bbl | 0.00
Derivative, Nonmonetary Notional Amount | 0
Buying Contracts [Member] | Crude Oil Futures [Member] | Not Designated As Hedging Instrument [Member] |
Derivative [Line Items] |
Weighted average contract price per bbl | $ / bbl | 36.48
Derivative, Nonmonetary Notional Amount | 6
Buying Contracts [Member] | Crude oil LLSWTI swap [Member] | Not Designated As Hedging Instrument [Member] |
Derivative [Line Items] |
Weighted average contract price per bbl | $ / units | 0.00
Derivative, Nonmonetary Notional Amount | 0
Buying Contracts [Member] | Diesel Futures [Member] | Not Designated As Hedging Instrument [Member] |
Derivative [Line Items] |
Weighted average contract price per bbl | $ / bbl | 1.15
Derivative, Nonmonetary Notional Amount | 6
Buying Contracts [Member] | Fuel Oil Futures [Member] | Not Designated As Hedging Instrument [Member] |
Derivative [Line Items] |
Weighted average contract price per bbl | $ / bbl | 0.00
Derivative, Nonmonetary Notional Amount | 0
Buying Contracts [Member] | Crude Oil Options [Member] | Not Designated As Hedging Instrument [Member] |
Derivative [Line Items] |
Derivative, Nonmonetary Notional Amount | 35
Underlying, Derivative | $ / bbl | 0.64

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- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Specified interest rate, security price, commodity price, foreign exchange rate, index of prices or rates for a derivative contract but not the derivative contract itself. + References No definition available. + Details
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