v3.26.1
Contingencies, Commitments, and Accrued Environmental Costs - Narrative (Details)
$ in Millions
1 Months Ended 6 Months Ended
Aug. 02, 2019
USD ($)
Oct. 31, 2020
platform
Mar. 31, 2019
USD ($)
Apr. 30, 2018
USD ($)
Jun. 30, 2026
USD ($)
award
affiliate
Dec. 31, 2025
USD ($)
Loss Contingencies [Line Items]            
Total environmental accrual included in balance sheet         $ 306 $ 220
Performance obligations secured by letters of credit         $ 295  
Number of platforms decommissioned | platform   2        
Outer Continental Shelf Lease | Phillips Petroleum Company            
Loss Contingencies [Line Items]            
Ownership percentage in equity investment   25.00%        
Sale of interest, duration   30 years        
US and Canada | Cleanup Remediation Activities            
Loss Contingencies [Line Items]            
Environmental loss contingencies, term         30 years  
Venezuela | ConocoPhillips Versus Petroleos de Venezuela ICISD            
Loss Contingencies [Line Items]            
Litigation settlement, amount awarded from other party     $ 8,700      
Litigation settlement amount awarded from other party revised         $ 8,500  
Venezuela | ConocoPhillips vs Petroleos De Venezuela ICC            
Loss Contingencies [Line Items]            
Litigation settlement, amount awarded from other party $ 33     $ 2,000    
Number of affiliates | affiliate         3  
Number Of ongoing awards | award         3  
Proceeds from legal settlements         $ 795