v3.26.1
OPERATING REVENUES - OTHER NON-UTILITY OPERATING REVENUES (Details) - Revenues from contracts with customers - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disaggregation of Operating Revenues        
Revenues from contracts with customers $ 2,010.8 $ 1,997.6 $ 5,381.7 $ 5,100.8
Other non-utility revenues        
Disaggregation of Operating Revenues        
Revenues from contracts with customers 84.4 59.6 164.1 125.0
Other non-utility revenues | We Power revenues        
Disaggregation of Operating Revenues        
Revenues from contracts with customers 6.3 6.1 12.4 12.2
Transferred over time | Other non-utility revenues | Renewable generation revenues        
Disaggregation of Operating Revenues        
Revenues from contracts with customers 72.7 48.1 140.7 101.9
Transferred over time | Other non-utility revenues | Appliance service revenues        
Disaggregation of Operating Revenues        
Revenues from contracts with customers $ 5.4 $ 5.4 $ 11.0 $ 10.9