Property, Plant, and Equipment (Tables)

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment - Balances

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

(in millions)	2023		2022
Electric – generation	$	6,190.4	$	5,480.5
Electric – distribution	8,688.0		8,233.3
Natural gas – distribution, storage, and transmission	14,851.3		14,203.3
Property, plant, and equipment to be retired, net	1,043.5		1,085.6
Other	2,350.0		2,302.7
Less: Accumulated depreciation	8,907.9		8,416.2
Net	24,215.3		22,889.2
CWIP	1,118.3		972.1
Net utility and non-utility property, plant, and equipment	25,333.6		23,861.3
We Power generation	3,295.9		3,237.1
Renewable generation	3,667.7		2,537.1
Natural gas storage	291.6		292.2
Net non-utility energy infrastructure	7,255.2		6,066.4
Corporate services	169.8		163.0
Other	14.3		23.8
Less: Accumulated depreciation	1,227.5		1,082.3
Net	6,211.8		5,170.9
CWIP	36.1		81.6
Net other property, plant, and equipment	6,247.9		5,252.5
Total property, plant, and equipment	$	31,581.5	$	29,113.8

Schedule of activity related to severance liability

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

(in millions)	2023		2022		2021
Severance liability at January 1	$	16.2	$	4.9	$	0.7
Severance expense	1.6		11.3		4.6
Severance payments	—		—		(0.4)
Total severance liability at December 31	$	17.8	$	16.2	$	4.9