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Property, Plant, and Equipment
 12 Months Ended
Dec. 31, 2020
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT PROPERTY, PLANT, AND EQUIPMENT
Property, plant, and equipment consisted of the following at December 31:
(in millions)20202019
Electric – generation$7,015.3 $6,858.8 
Electric – distribution7,455.5 7,018.1 
Natural gas – distribution, storage, and transmission12,730.0 11,602.7 
Other1,896.1 1,696.7 
Less: Accumulated depreciation8,465.0 8,073.7 
Net20,631.9 19,102.6 
CWIP683.9 820.4 
Net utility and non-utility property, plant, and equipment21,315.8 19,923.0 
We Power generation3,238.8 3,245.7 
Renewable generation1,213.3 716.5 
Natural gas storage250.0 245.9 
Net non-utility energy infrastructure4,702.1 4,208.1 
Corporate services212.3 180.4 
Other41.8 88.8 
Less: Accumulated depreciation899.7 805.0 
Net4,056.5 3,672.3 
CWIP335.1 24.8 
Net other property, plant, and equipment4,391.6 3,697.1 
Total property, plant, and equipment$25,707.4 $23,620.1 

Public Service Building

During a significant rain event in May 2020, an underground steam tunnel in downtown Milwaukee flooded and steam vented into WE’s Public Service Building. The damage to the building from the flooding and steam was extensive and will require significant repairs and restorations. As of December 31, 2020, WE had incurred $35.2 million of costs related to these repairs and restorations. WE received $20.0 million of insurance proceeds to cover a portion of these costs and $2.7 million was recorded as a receivable for future insurance recoveries. The remaining $12.5 million of costs were included in other operation and maintenance expense. We anticipate that the majority of future capital expenditures required to restore the Public Service Building will either be covered by insurance or recovery will be requested from the PSCW. As such, we do not currently expect a significant impact to our future results of operations, and although we may experience differences between periods in the timing of cash flows, we also do not currently expect a significant impact to our long-term cash flows from this event.