v3.26.1
SEGMENTED INFORMATION - Schedule of Reporting Information by Segment (Details) - CAD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Segmented Information      
Operating revenues $ 22,357 $ 18,502  
Operating and administrative (2,568) (2,471)  
Income from equity investments 541 729  
Earnings before interest, income taxes and depreciation and amortization 5,424 5,889  
Depreciation and amortization (1,433) (1,408)  
Interest expense (1,222) (1,334)  
Earnings before income taxes 2,365 3,187  
Property, plant and equipment, net $ 134,408   $ 131,598
Number Of Reportable Segments Disclosed By Definition Flag true    
Business Segments      
Segmented Information      
Operating revenues $ 21,825 17,975  
Commodity and gas distribution costs (14,619) (10,492)  
Operating and administrative (2,518) (2,502)  
Income from equity investments 544 733  
Other income 192 175  
Capital expenditures 2,485 1,754  
Business Segments | Liquids Pipelines      
Segmented Information      
Operating revenues 15,462 12,184  
Commodity and gas distribution costs (12,623) (8,850)  
Operating and administrative (1,107) (1,128)  
Income from equity investments 225 368  
Other income 0 19  
Earnings before interest, income taxes and depreciation and amortization 1,957 2,593  
Capital expenditures 411 309  
Property, plant and equipment, net 52,149   51,689
Business Segments | Gas Transmission      
Segmented Information      
Operating revenues 1,781 1,715  
Commodity and gas distribution costs (19) (11)  
Operating and administrative (551) (524)  
Income from equity investments 232 232  
Other income 127 61  
Earnings before interest, income taxes and depreciation and amortization 1,570 1,473  
Capital expenditures 942 604  
Property, plant and equipment, net 36,748   35,421
Business Segments | Gas Distribution and Storage      
Segmented Information      
Operating revenues 4,408 3,956  
Commodity and gas distribution costs (1,977) (1,634)  
Operating and administrative (774) (772)  
Income from equity investments 0 1  
Other income 52 49  
Earnings before interest, income taxes and depreciation and amortization 1,709 1,600  
Capital expenditures 708 661  
Property, plant and equipment, net 40,277   39,644
Business Segments | Renewable Power Generation      
Segmented Information      
Operating revenues 174 120  
Commodity and gas distribution costs 0 3  
Operating and administrative (86) (78)  
Income from equity investments 87 132  
Other income 13 46  
Earnings before interest, income taxes and depreciation and amortization 188 223  
Capital expenditures 424 145  
Property, plant and equipment, net 4,882   4,439
Eliminations and Other      
Segmented Information      
Eliminations and Other (404) 40  
Capital expenditures 0 $ 35  
Property, plant and equipment, net $ 352   $ 405