Property, Plant, and Equipment (Tables)

12 Months Ended

Dec. 31, 2021

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment - Balances

Property, plant, and equipment consisted of the following at December 31:

(in millions)	2021		2020
Electric – generation	$	6,981.4	$	7,015.3
Electric – distribution	7,854.7		7,455.5
Natural gas – distribution, storage, and transmission	13,526.6		12,730.0
Property, plant, and equipment to be retired, net	277.0		—
Other	2,212.6		1,896.1
Less: Accumulated depreciation	8,894.9		8,465.0
Net	21,957.4		20,631.9
CWIP	406.0		683.9
Net utility and non-utility property, plant, and equipment	22,363.4		21,315.8
We Power generation	3,240.5		3,238.8
Renewable generation	1,837.5		1,213.3
Natural gas storage	289.9		250.0
Net non-utility energy infrastructure	5,367.9		4,702.1
Corporate services	188.7		212.3
Other	27.0		41.8
Less: Accumulated depreciation	994.4		899.7
Net	4,589.2		4,056.5
CWIP	29.8		335.1
Net other property, plant, and equipment	4,619.0		4,391.6
Total property, plant, and equipment	$	26,982.4	$	25,707.4

Schedule of activity related to severance liability

Activity related to these severance liabilities for the years ended December 31 was as follows:

(in millions)	2021		2020		2019
Severance liability at January 1	$	0.7	$	2.1	$	15.7
Severance expense	4.6		—		—
Severance payments	(0.4)		(0.1)		(7.2)
Other	—		(1.3)		(6.4)
Total severance liability at December 31	$	4.9	$	0.7	$	2.1