v3.26.1
Property, Plant and Equipment - Narrative (Details) - CAD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Feb. 28, 2026
Disclosure of detailed information about property, plant and equipment [line items]        
Deferred income tax recovery $ (510) $ (422) $ (53)  
Chevron Canada Limited        
Disclosure of detailed information about property, plant and equipment [line items]        
Fair value, net of asset retirement obligation   9,163    
Exploration and evaluation assets   320    
Property, plant and equipment   8,901    
Company recognized a non-cash charge   $ 173    
Chevron Canada Limited, Operated Working Interest, Duvernay Asset Play in Alberta        
Disclosure of detailed information about property, plant and equipment [line items]        
Interest acquired   70.00%    
Chevron Canada Limited, Working Interest, AOSP        
Disclosure of detailed information about property, plant and equipment [line items]        
Interest acquired   20.00%    
Chevron Canada Limited, Direct and Indirect Working Interest, AOSP        
Disclosure of detailed information about property, plant and equipment [line items]        
Interest acquired   90.00%    
North Sea        
Disclosure of detailed information about property, plant and equipment [line items]        
Impairment loss (reversal of impairment loss) recognised in profit or loss 836 $ 21 113  
Recoverability charge 1,462 160 436  
Deferred income tax recovery 626 139 $ 323  
Offshore Africa        
Disclosure of detailed information about property, plant and equipment [line items]        
Recoverability charge 269      
Oil Sands Mining and Upgrading        
Disclosure of detailed information about property, plant and equipment [line items]        
Project costs not subject to depletion and depreciation 466 $ 272    
Grande Prairie NGLs and Natural Gas | North America        
Disclosure of detailed information about property, plant and equipment [line items]        
Fair value, net of asset retirement obligation 752      
Exploration and evaluation assets 36      
Property, plant and equipment 733      
Others assets 3      
Company recognized a non-cash charge 20      
Palliser Block Crude Oil and NGLs, and Natural Gas | North America        
Disclosure of detailed information about property, plant and equipment [line items]        
Fair value, net of asset retirement obligation 302      
Exploration and evaluation assets 119      
Property, plant and equipment 457      
Company recognized a non-cash charge 350      
Net working capital 76      
Deferred tax assets recognised as of acquisition date 80      
Gains on acquisitions of property, plant and equipment, pre-tax 80      
Grande Prairie Acquisition        
Disclosure of detailed information about property, plant and equipment [line items]        
Revenue of acquiree since acquisition date 166      
Revenue net of production and transportation expense since acquisition date 89      
Earnings before tax since acquisition 28      
Palliser Block Acquisition        
Disclosure of detailed information about property, plant and equipment [line items]        
Revenue of acquiree since acquisition date 279      
Revenue net of production and transportation expense since acquisition date 147      
Earnings before tax since acquisition 61      
Grande Prairie and Palliser Block Acquisitions        
Disclosure of detailed information about property, plant and equipment [line items]        
Revenue net of production and transportation expense since acquisition date 520      
Revenue of combined entity as if combination occurred at beginning of period 961      
Business acquisition, pro forma earnings before tax, including depletion, depreciation and amortization 241      
Other Acquisitions | North America        
Disclosure of detailed information about property, plant and equipment [line items]        
Fair value, net of asset retirement obligation 126      
Property, plant and equipment 160      
Company recognized a non-cash charge 51      
Exploration and evaluation assets $ 17      
Peace River Area | North America        
Disclosure of detailed information about property, plant and equipment [line items]        
Fair value, net of asset retirement obligation       $ 765