v3.25.2
Segment Information - Reconciliation of Reportable Segment Operating Margin to Income (Loss) Before Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Reconciliation of reportable segment operating margin to income (loss) before income taxes:        
Depreciation and amortization expense $ (373.7) $ (348.6) $ (741.3) $ (689.1)
General and administrative expense (95.0) (98.3) (189.5) (184.8)
Other operating income (expense) 1.8 0.2 7.1 0.3
Interest expense, net (218.4) (176.0) (415.5) (404.6)
Equity earnings (loss) 5.1 2.9 10.6 5.6
Other, net 1.0 (0.7) 1.3 1.3
Income (loss) before income taxes 821.3 453.2 1,173.3 868.7
Total Reportable Segments Operating Margin [Member]        
Reconciliation of reportable segment operating margin to income (loss) before income taxes:        
Operating margin 1,220.0 1,120.3 2,468.9 2,208.7
Gathering and Processing [Member]        
Reconciliation of reportable segment operating margin to income (loss) before income taxes:        
Operating margin 587.6 572.6 1,189.8 1,128.9
Logistics and Transportation [Member]        
Reconciliation of reportable segment operating margin to income (loss) before income taxes:        
Operating margin 632.4 547.7 1,279.1 1,079.8
Other [Member]        
Reconciliation of reportable segment operating margin to income (loss) before income taxes:        
Operating margin $ 280.5 $ (46.6) $ 31.7 $ (68.7)