XML 228 R200.htm IDEA: XBRL DOCUMENT v3.20.4
Segments Disclosures - Geographic Information (Details) - CAD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Disclosure of geographical areas [line items]      
Revenues $ 2,101 $ 2,347 $ 2,249
PP&E 5,822 6,207 6,164
Right-of-use assets 141 146 52
Intangible assets 313 318 373
Other assets 206 198  
Goodwill 463 464  
Canada      
Disclosure of geographical areas [line items]      
Revenues 1,227 1,460 1,573
PP&E 4,661 4,854  
Right-of-use assets 107 109  
Intangible assets 185 213  
Other assets 74 75  
Goodwill 418 418  
US      
Disclosure of geographical areas [line items]      
Revenues 716 727 511
PP&E 737 863  
Right-of-use assets 30 33  
Intangible assets 94 68  
Other assets 61 47  
Goodwill 45 46  
Australia      
Disclosure of geographical areas [line items]      
Revenues 158 160 $ 165
PP&E 424 490  
Right-of-use assets 4 4  
Intangible assets 34 37  
Other assets 71 76  
Goodwill $ 0 $ 0