SPIN-OFF OF CALIFORNIA RESOURCES CORPORATION (Details 1) - USD ($)	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Sales and other operating revenues and income from discontinued operations related to California Resources Company
Income tax expense	$ 1,000,000	$ 454,000,000	$ 550,000,000
Income from discontinued operations	317,000,000	760,000,000	$ 971,000,000
California Resources Corporation \| Spin-off California Resources Corp
Sales and other operating revenues and income from discontinued operations related to California Resources Company
Sales and other operating revenue from discontinued operations	3,951,000,000	4,285,000,000
Income from discontinued operations before-tax	1,205,000,000	1,531,000,000
Income tax expense	440,000,000	541,000,000
Income from discontinued operations	$ 765,000,000	$ 990,000,000

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.

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

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- Definition

Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. 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.

+ References

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Reference 10: http://www.xbrl.org/2003/role/presentationRef
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