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Property, Plant, and Equipment (Tables)
 12 Months Ended
Dec. 31, 2024
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment - Balances
Property, plant, and equipment consisted of the following at December 31:
(in millions)20242023
Electric – generation$6,976.3 $6,190.4 
Electric – distribution9,298.9 8,688.0 
Natural gas – distribution, storage, and transmission15,673.0 14,851.3 
Property, plant, and equipment to be retired, net906.3 1,043.5 
Other2,410.8 2,350.0 
Less: Accumulated depreciation9,411.0 8,907.9 
Net25,854.3 24,215.3 
CWIP1,653.6 1,118.3 
Net utility and non-utility property, plant, and equipment27,507.9 25,333.6 
We Power generation3,284.3 3,295.9 
Renewable generation4,720.8 3,667.7 
Natural gas storage298.6 291.6 
Net non-utility energy infrastructure8,303.7 7,255.2 
Corporate services172.3 169.8 
Other14.1 14.3 
Less: Accumulated depreciation1,393.9 1,227.5 
Net7,096.2 6,211.8 
CWIP41.3 36.1 
Net other property, plant, and equipment7,137.5 6,247.9 
Total property, plant, and equipment$34,645.4 $31,581.5 
Schedule of activity related to severance liability Activity related to these severance liabilities for the years ended December 31 was as follows:
(in millions)202420232022
Severance liability at January 1$17.8 $16.2 $4.9 
Severance expense(3.9)
(1)
1.6 11.3 
Severance payments(0.5)— — 
Total severance liability at December 31$13.4 $17.8 $16.2 

(1)    The severance accrual was decreased in 2024 due to workforce realignment efforts.