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ACQUISITIONS AND DISPOSITIONS - Narrative (Details)
$ in Millions, $ in Millions
4 Months Ended
May 31, 2024
CAD ($)
May 31, 2024
USD ($)
Mar. 06, 2024
CAD ($)
Mar. 06, 2024
USD ($)
Jan. 02, 2024
CAD ($)
facility
Jan. 02, 2024
USD ($)
Apr. 03, 2023
CAD ($)
Apr. 03, 2023
USD ($)
Jun. 30, 2024
CAD ($)
Jan. 02, 2024
USD ($)
facility
Apr. 03, 2023
USD ($)
Questar Gas Company                      
Business Acquisition [Line Items]                      
Ownership interests acquired (percent) 100.00%                    
Purchase price $ 4,100 $ 3,000                  
Cash 4,107                    
Property, plant and equipment 5,921                    
Long-term debt $ 1,343                    
EOG Acquisition                      
Business Acquisition [Line Items]                      
Purchase price     $ 5,800 $ 4,300              
Revenues generated by acquiree                 $ 439    
Earnings generated by acquiree                 $ 83    
Cash     5,838                
Property, plant and equipment     7,253                
Long-term debt     $ 2,612                
RNG Facilities                      
Business Acquisition [Line Items]                      
Purchase price         $ 1,348 $ 1,000          
Number of facilities acquired | facility         6         6  
Cash         $ 584 $ 439          
Remaining consideration payable, payment period (in years)         2 years 2 years          
Contingent consideration payable         $ 757         $ 568  
Property, plant and equipment         $ 174            
Tres Palacios Holdings LLC                      
Business Acquisition [Line Items]                      
Cash             $ 451 $ 335      
Property, plant and equipment             790       $ 588
Cavern right-of-use assets             254       189
Lease liabilities             7       5
Long-term debt             $ 248       $ 184