XML 123 R94.htm IDEA: XBRL DOCUMENT v3.10.0.1
Property Plant And Equipment - Segment breakup - (Details) - CAD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. $ 74,245 $ 73,493  
Assets under construction and not subject to depreciation 4,700 15,900  
Finance lease assets 1,400 1,400  
Oil Sands      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. 57,641 56,961  
Exploration and Production      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. 7,792 8,017  
Refining and Marketing      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. 8,535 8,231  
Cost      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. 116,874 114,848 $ 107,678
Cost | Oil Sands      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. 80,295 79,625  
Cost | Exploration and Production      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. 21,867 21,007  
Cost | Refining and Marketing      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. 13,627 13,137  
Accumulated provision      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. (42,629) (41,355) (36,419)
Accumulated provision | Oil Sands      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. (22,654) (22,664)  
Accumulated provision | Exploration and Production      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. (14,075) (12,990)  
Accumulated provision | Refining and Marketing      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. (5,092) (4,906)  
Oil and Gas properties      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. 18,062 18,234  
Oil and Gas properties | Cost      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. 37,845 36,209 34,141
Oil and Gas properties | Accumulated provision      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. (19,783) (17,975) (16,062)
Plant and Equipment      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. 56,183 55,259  
Plant and Equipment | Cost      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. 79,029 78,639 73,537
Plant and Equipment | Accumulated provision      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. (22,846) (23,380) $ (20,357)
Corporate Energy Trading And Eliminations      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. 277 284  
Corporate Energy Trading And Eliminations | Cost      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. 1,085 1,079  
Corporate Energy Trading And Eliminations | Accumulated provision      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment.. $ (808) $ (795)