v3.26.1
SEGMENTED INFORMATION - Schedule of Reporting Information by Segment (Details) - CAD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Segmented Information          
Operating revenues $ 29,318 $ 14,876 $ 51,675 $ 33,378  
Operating and administrative (2,361) (2,310) (4,929) (4,781)  
Impairment of long-lived assets 0 (330) 0 (330)  
Income from equity investments 532 510 1,073 1,239  
Earnings before interest, income taxes and depreciation and amortization 5,052 4,392 10,476 10,281  
Depreciation and amortization (1,429) (1,391) (2,862) (2,799)  
Interest expense (1,395) (1,181) (2,617) (2,515)  
Earnings before income taxes 2,012 2,987 4,377 6,174  
Capital expenditures 3,038 1,940 5,523 3,694  
Property, plant and equipment, net 137,658   $ 137,658   $ 131,598
Number Of Reportable Segments Disclosed By Definition Flag     true    
Business Segments          
Segmented Information          
Operating revenues 29,186 14,602 $ 51,011 32,577  
Commodity and gas distribution costs (22,504) (8,309) (37,123) (18,801)  
Operating and administrative (2,346) (2,306) (4,864) (4,808)  
Impairment of long-lived assets   (330)   (330)  
Income from equity investments 536 513 1,080 1,246  
Other income 180 222 372 397  
Business Segments | Liquids Pipelines          
Segmented Information          
Operating revenues 25,221 10,837 40,683 23,021  
Commodity and gas distribution costs (21,924) (7,741) (34,547) (16,591)  
Operating and administrative (985) (1,032) (2,092) (2,160)  
Impairment of long-lived assets   0   0  
Income from equity investments 283 245 508 613  
Other income 28 22 28 41  
Earnings before interest, income taxes and depreciation and amortization 2,623 2,331 4,580 4,924  
Capital expenditures 443 284 854 593  
Property, plant and equipment, net 52,689   52,689   51,689
Business Segments | Gas Transmission          
Segmented Information          
Operating revenues 1,720 1,604 3,501 3,319  
Commodity and gas distribution costs (33) (16) (52) (27)  
Operating and administrative (564) (514) (1,115) (1,038)  
Impairment of long-lived assets   0   0  
Income from equity investments 227 241 459 473  
Other income 83 127 210 188  
Earnings before interest, income taxes and depreciation and amortization 1,433 1,442 3,003 2,915  
Capital expenditures 1,438 691 2,380 1,295  
Property, plant and equipment, net 38,235   38,235   35,421
Business Segments | Gas Distribution and Storage          
Segmented Information          
Operating revenues 2,081 2,016 6,489 5,972  
Commodity and gas distribution costs (547) (553) (2,524) (2,187)  
Operating and administrative (710) (688) (1,484) (1,460)  
Impairment of long-lived assets   (330)   (330)  
Income from equity investments 0 0 0 1  
Other income 54 65 106 114  
Earnings before interest, income taxes and depreciation and amortization 878 510 2,587 2,110  
Capital expenditures 748 735 1,456 1,396  
Property, plant and equipment, net 41,016   41,016   39,644
Business Segments | Renewable Power Generation          
Segmented Information          
Operating revenues 164 145 338 265  
Commodity and gas distribution costs 0 1 0 4  
Operating and administrative (87) (72) (173) (150)  
Impairment of long-lived assets   0   0  
Income from equity investments 26 27 113 159  
Other income 15 8 28 54  
Earnings before interest, income taxes and depreciation and amortization 118 109 306 332  
Capital expenditures 409 214 833 359  
Property, plant and equipment, net 5,349   5,349   4,439
Eliminations and Other          
Segmented Information          
Eliminations and Other (216) 1,167 (620) 1,207  
Capital expenditures 0 $ 16 0 $ 51  
Property, plant and equipment, net $ 369   $ 369   $ 405