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Cover - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Feb. 28, 2021
Jun. 30, 2020
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2020    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-36478    
Entity Registrant Name California Resources Corp    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 46-5670947    
Entity Address, Address Line One 27200 Tourney Road, Suite 200    
Entity Address, City or Town Santa Clarita    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 91355    
City Area Code 888    
Local Phone Number 848-4754    
Title of 12(b) Security Common Stock    
Trading Symbol CRC    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag false    
Entity Shell Company false    
Entity Public Float     $ 59
Entity Bankruptcy Proceedings, Reporting Current true    
Entity Common Stock, Shares Outstanding   83,319,660  
Documents Incorporated by Reference Portions of the Definitive Proxy Statement to be filed within 120 days after December 31, 2020 with the Securities and Exchange Commission in connection with the registrant's 2021 Annual Meeting of Stockholders are incorporated by reference into Part III of this Form 10-K.    
Entity Central Index Key 0001609253    
Document Fiscal Year Focus 2020    
Document Fiscal Period Focus FY    
Amendment Flag false