Spin-off of California Resources Corporation (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
PROPERTY, PLANT, AND EQUIPMENT
Accumulated depreciation, depletion and amortization	$ 34,785,000,000	$ 33,231,000,000
Sales and other operating revenues and income from discontinued operations related to California Resources Company
Income tax expense	454,000,000	550,000,000	466,000,000
Income from discontinued operations	760,000,000	971,000,000	769,000,000
California Resources Corporation
CURRENT ASSETS
Cash and cash equivalents	8,000,000
Trade receivables, net	591,000,000	30,000,000
Inventories	73,000,000	75,000,000
Other current assets	22,000,000	125,000,000
Total current assets	694,000,000	230,000,000
PROPERTY, PLANT, AND EQUIPMENT
Total Property, Plant and Equipment	23,257,000,000	21,065,000,000
Accumulated depreciation, depletion and amortization	(8,079,000,000)	(6,974,000,000)
LONG TERM RECEIVABLES AND OTHER ASSETS, NET	112,000,000	35,000,000
TOTAL ASSETS OF DISCOUNTINUED OPERATIONS	15,984,000,000	14,356,000,000
CURRENT LIABILITIES
Accounts payable	696,000,000	447,000,000
Accrued liabilities	182,000,000	253,000,000
Total current liabilities	878,000,000	700,000,000
LONG-TERM DEBT, NET	6,295,000,000
DEFERRED CREDITS AND OTHER LIABILITIES
Deferred domestic and foreign income taxes	3,227,000,000	2,904,000,000
Other	531,000,000	509,000,000
Total deferred credits and other liabilities	3,758,000,000	3,413,000,000
TOTAL LIABILITIES OF DISCONTINUED OPERATIONS	10,931,000,000	4,113,000,000
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	4,072,000,000
Income from discontinued operations before-tax	1,205,000,000	1,531,000,000	1,265,000,000
Income tax expense	440,000,000	541,000,000	459,000,000
Income from discontinued operations	$ 765,000,000	$ 990,000,000	$ 806,000,000