Represents the crued oil production per day in barrels associated with the put option.

No definition available.

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- Definition

The pre-tax charge against earnings resulting from the write down of long lived assets due to the difference between the carrying value and lower fair value.

+ References

No definition available.

+ Details

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- Details

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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- Definition

Fair value as of the balance sheet date of price risk derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets on the balance sheet.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611

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FAIR VALUE MEASUREMENTS (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended
	Dec. 31, 2014 bbl	Dec. 31, 2014	Dec. 31, 2012
Fair Value Measurements
Risk-adjusted discount rate		10.00%us-gaap_FairValueInputsDiscountRate
Cash-Flow Hedges
Crude oil production per day associated with the put option (in barrels per day)	100,000
Asset Impairments
Pretax Asset Impairment		$ 3,402crc_PretaxAssetImpairment	$ 29crc_PretaxAssetImpairment
Proved and unproved properties [member]
Asset Impairments
Pretax Asset Impairment		3,400
Proved properties [member]
Asset Impairments
Pretax Asset Impairment		2,700
Recurring \| Level 2
Fair Value Measurements
Commodity derivative instruments, other current assets	24	24
Recurring \| Total Fair Value
Fair Value Measurements
Commodity derivative instruments, other current assets	24	$ 24