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Property, Plant, and Equipment (Tables)
12 Months Ended
Dec. 31, 2022
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment - Balances
Property, plant, and equipment consisted of the following at December 31:
(in millions)20222021
Electric – generation$5,480.5 $6,981.4 
Electric – distribution8,233.3 7,854.7 
Natural gas – distribution, storage, and transmission14,203.3 13,526.6 
Property, plant, and equipment to be retired, net1,085.6 277.0 
Other2,302.7 2,212.6 
Less: Accumulated depreciation8,416.2 8,894.9 
Net22,889.2 21,957.4 
CWIP972.1 406.0 
Net utility and non-utility property, plant, and equipment23,861.3 22,363.4 
We Power generation3,237.1 3,240.5 
Renewable generation2,537.1 1,837.5 
Natural gas storage292.2 289.9 
Net non-utility energy infrastructure6,066.4 5,367.9 
Corporate services163.0 188.7 
Other23.8 27.0 
Less: Accumulated depreciation1,082.3 994.4 
Net5,170.9 4,589.2 
CWIP81.6 29.8 
Net other property, plant, and equipment5,252.5 4,619.0 
Total property, plant, and equipment$29,113.8 $26,982.4 
Schedule of activity related to severance liability Activity related to these severance liabilities for the years ended December 31 was as follows:
(in millions)202220212020
Severance liability at January 1$4.9 $0.7 $2.1 
Severance expense11.3 4.6 — 
Severance payments (0.4)(0.1)
Other — (1.3)
Total severance liability at December 31$16.2 $4.9 $0.7