Discontinued Operations (Details) - Aruba Refinery [Member] - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Jun. 30, 2014	Dec. 31, 2014	Dec. 31, 2013
Discontinued Operations (Textual)
Asset retirement obligation recognized	$ 59
Asset retirement obligation charged to accretion expense	59
Liabilities recognized for obligations under certain contracts	$ 4
Operating revenues		$ 0	$ 0
Income (loss) before income taxes		$ (64)	$ 6

The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 20
-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
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Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.

+ References

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Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Amount classified as accrued liabilities attributable to disposal group held for sale or disposed of.

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Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation.

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