v3.25.4
Property, Plant and Equipment (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Property, Plant and Equipment [Line Items]      
Depreciation $ 1,008.9 $ 820.4 $ 756.9
Regulatory Deferral - Joint Venture 62.4 58.9 12.5
Capitalized Computer Software, Amortization 76.0 85.2 77.5
Capitalized Computer Software, Gross 390.3 236.1  
Capitalized Cloud Computing, Amortization 27.0 17.7 $ 12.6
Capitalized Cloud Computing, Gross $ 165.1 $ 77.5