v3.25.2
Long-lived Assets - Property and Equipment, Net (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross, excluding construction in progress $ 7,585.1 $ 7,422.3
Accumulated depreciation (3,998.1) (3,767.4)
Total depreciable assets 3,587.0 3,654.9
Total property and equipment, net 3,936.1 4,062.4
Distribution systems    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 5,337.6 5,181.1
Support equipment and buildings    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 1,313.1 1,292.6
CPE    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 934.4 948.6
CIP and land    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 349.1 $ 407.5