v3.25.4
Long-lived Assets - Schedule of Property and Equipment and the Related Accumulated Depreciation (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross, excluding construction in progress $ 7,648.9 $ 7,422.3  
Accumulated depreciation (4,105.2) (3,767.4)  
Total depreciable assets 3,543.7 3,654.9  
Property and equipment, net 3,847.8 4,062.4  
Depreciation expense 809.0 833.0 $ 840.0
Non-cash increases related to vendor financing arrangements 123.9 154.9 $ 143.8
Distribution systems      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 5,280.3 5,181.1  
Distribution systems | Minimum      
Property, Plant and Equipment [Line Items]      
Estimated useful life 3 years    
Distribution systems | Maximum      
Property, Plant and Equipment [Line Items]      
Estimated useful life 25 years    
Support equipment and buildings      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 1,403.2 1,292.6  
Support equipment and buildings | Minimum      
Property, Plant and Equipment [Line Items]      
Estimated useful life 3 years    
Support equipment and buildings | Maximum      
Property, Plant and Equipment [Line Items]      
Estimated useful life 40 years    
CPE      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 965.4 948.6  
CPE | Minimum      
Property, Plant and Equipment [Line Items]      
Estimated useful life 3 years    
CPE | Maximum      
Property, Plant and Equipment [Line Items]      
Estimated useful life 5 years    
CIP and land      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 304.1 $ 407.5