PROPERTY, PLANT, AND EQUIPMENT	9 Months Ended
	Sep. 30, 2020
Property, Plant and Equipment [Abstract]
PROPERTY, PLANT, AND EQUIPMENT	PROPERTY, PLANT, AND EQUIPMENTDuring 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 September 30, 2020, WE had incurred $16.8 million of costs related to these repairs and restorations, and we have received insurance proceeds sufficient to cover these costs. We are working closely with our insurance carriers, and we anticipate that any current and future expenditures required to restore the Public Service Building will largely be covered by insurance. As such, we do not currently expect a significant impact to our 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.