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SPIN OFF OF CALIFORNIA RESOURCES CORPORATION - OPERATIONS (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Sales and other operating revenues and income from discontinued operations |  |  |
Income tax expense | $ 249.0 | $ 1.0 | $ 454.0
Income from discontinued operations | $ 428.0 | $ 317.0 | 760.0
California Resources Corporation | Spin-off California Resources Corp |  |  |
Sales and other operating revenues and income from discontinued operations |  |  |
Sales and other operating revenue from discontinued operations |  |  | 3,951.0
Income from discontinued operations before-tax |  |  | 1,205.0
Income tax expense |  |  | 440.0
Income from discontinued operations |  |  | $ 765.0

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