Derivatives (Schedule Of Outstanding Derivatives Entered Into To Hedge Inventory Or Fixed Price Purchase Commitments) (Details) - Mar. 31, 2015	bbl $ / bbl $ / units
Sell (Short) Contracts [Member] \| Crude Oil Futures [Member] \| Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	520
Weighted average contract price per gal \| $ / bbl	47.47
Sell (Short) Contracts [Member] \| Crude Oil Futures [Member] \| Not Designated As Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	353
Weighted average contract price per gal \| $ / bbl	52.02
Sell (Short) Contracts [Member] \| Crude oil LLSWTI swap [Member] \| Not Designated As Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	670
Weighted average contract price per gal \| $ / bbl	2.89
Sell (Short) Contracts [Member] \| Fuel Oil Futures [Member] \| Not Designated As Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	340
Weighted average contract price per gal \| $ / bbl	45.46
Sell (Short) Contracts [Member] \| Crude Oil Options [Member] \| Not Designated As Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	85
Underlying, Derivative \| $ / bbl	2.36
Buy (Long) Contracts [Member] \| Crude Oil Futures [Member] \| Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	0
Weighted average contract price per gal \| $ / bbl	0.00
Buy (Long) Contracts [Member] \| Crude Oil Futures [Member] \| Not Designated As Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	276
Weighted average contract price per gal \| $ / bbl	54.27
Buy (Long) Contracts [Member] \| Crude oil LLSWTI swap [Member] \| Not Designated As Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	0
Weighted average contract price per gal \| $ / units	0.00
Buy (Long) Contracts [Member] \| Fuel Oil Futures [Member] \| Not Designated As Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	95
Weighted average contract price per gal \| $ / bbl	44.95
Buy (Long) Contracts [Member] \| Crude Oil Options [Member] \| Not Designated As Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	40
Underlying, Derivative \| $ / bbl	0.17

- 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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Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ 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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Period Type:	duration

- Definition

Specified interest rate, security price, commodity price, foreign exchange rate, index of prices or rates for a derivative contract measured in volume but not the derivative contract itself.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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