Debt Instrument, Amount Repurchased During Period

No definition available.

Name:	crc_DebtInstrumentAmountRepurchasedDuringPeriod
Namespace Prefix:	crc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line Of Credit Facility, Borrowing Base

+ References

No definition available.

+ Details

Name:	crc_LineOfCreditFacilityBorrowingBase
Namespace Prefix:	crc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of principal amount of debt redeemed.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentRepurchasedFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

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+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

DEBT - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
DEBT - Narrative (Details) - USD ($)	Feb. 28, 2025	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2024	Apr. 30, 2025
Senior Notes (Unsecured) \| 2026 Senior Notes
Debt instrument
Repurchase face amount	$ 123,000,000
Debt instrument, interest rate, stated percentage	7.125%	7.125%
Debt instrument, redemption price, percentage of principal amount redeemed	100.00%
Write off of deferred debt issuance cost	$ 1,000,000
Debt instrument, amount repurchased during period		$ 0	$ 0	$ 0
Revolving Credit Facility \| Line of Credit
Debt instrument
Line of credit facility, maximum borrowing capacity		1,150,000,000
Line of credit facility, remaining borrowing capacity		983,000,000
Borrowing base					$ 1,500,000,000
Letters of Credit \| Line of Credit
Debt instrument
Line of credit facility, maximum borrowing capacity		300,000,000
Letters of credit issued		$ 167,000,000