v3.26.1
Segment Information - Other Financial Information (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Other financial information [Abstract]          
Total assets $ 28,515.1 [1] $ 23,512.8 [1] $ 28,515.1 [1] $ 23,512.8 [1] $ 25,218.4
Goodwill 118.9 45.2 118.9 45.2  
Capital expenditures 1,164.4 892.5 2,112.7 1,510.8  
Gathering and Processing [Member]          
Other financial information [Abstract]          
Goodwill   45.2   45.2  
Capital expenditures       894.2  
Operating Segments [Member]          
Other financial information [Abstract]          
Total assets [1] 28,200.3 23,270.9 28,200.3 23,270.9  
Goodwill 118.9 45.2 118.9 45.2  
Capital expenditures 1,151.2 882.8 2,091.7 1,490.7  
Operating Segments [Member] | Gathering and Processing [Member]          
Other financial information [Abstract]          
Total assets [1] 17,550.7 13,937.9 17,550.7 13,937.9  
Goodwill 118.9 45.2 118.9 45.2  
Capital expenditures 711.1 461.0 1,292.9    
Operating Segments [Member] | Logistics and Transportation [Member]          
Other financial information [Abstract]          
Total assets [1] 10,649.6 9,333.0 10,649.6 9,333.0  
Capital expenditures 440.1 421.8 798.8 596.5  
Operating Segments [Member] | Other [Member]          
Other financial information [Abstract]          
Total assets [1] 0.9 0.1 0.9 0.1  
Operating Segments [Member] | Corporate and Eliminations [Member]          
Other financial information [Abstract]          
Total assets [1] 313.9 241.8 313.9 241.8  
Capital expenditures $ 13.2 $ 9.7 $ 21.0 $ 20.1  
[1] Assets in the Corporate and Eliminations column primarily include tax-related assets, cash, prepaids and debt issuance costs for our revolving credit facilities.