XML 21 R1.htm IDEA: XBRL DOCUMENT v3.22.0.1
Cover - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2021
Jan. 31, 2022
Jun. 30, 2021
Cover [Abstract]      
Entity Central Index Key 0001163165    
Amendment Flag false    
Entity File Number 001-32395    
Entity Registrant Name ConocoPhillips    
Document Type 10-K    
Document Transition Report false    
Document Period End Date Dec. 31, 2021    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Current Fiscal Year End Date --12-31    
Entity Incorporation State or Country Code DE    
Entity Tax Identification Number 01-0562944    
Entity Address, Address Line One 925 N. Eldridge Parkway    
Entity Address, City or Town Houston    
Entity Address, State or Province TX    
Entity Address, Postal Zip Code 77079    
City Area Code 281    
Local Phone Number 293-1000    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Common Stock, Shares Outstanding   1,299,526,916  
Entity Listings [Line Items]      
Documents Incorporated By Reference [Text Block]
Documents incorporated by reference:
Portions of the Proxy Statement for
 
the Annual Meeting of Stockholders to be held on May 10, 2022 (Part III)
    
ICFR Auditor Attestation Flag true    
Entity Voluntary Filers No    
Entity Well Known Seasoned Issuer Yes    
Document Annual Report true    
Entity Public Float     $ 81.5
Auditor Firm Id 42    
Auditor Name Ernst & Young LLP    
Auditor Location Houston, Texas    
Common Stock, $.01 Par Value [Member]      
Entity Listings [Line Items]      
Title of 12(b) Security Common Stock, $.01 Par Value    
Trading Symbol COP    
Security Exchange Name NYSE    
7% Debentures due 2029 [Member]      
Entity Listings [Line Items]      
Title of 12(b) Security 7% Debentures due 2029    
Trading Symbol CUSIP—718507BK1    
Security Exchange Name NYSE