Property, Plant, and Equipment (Tables)

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment - Balances

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

(in millions)	2019		2018
Electric – generation	$	6,858.8	$	6,410.6
Electric – distribution	7,018.1		6,534.6
Natural gas – distribution, storage, and transmission	11,602.7		10,766.3
Property, plant, and equipment to be retired, net	—		174.8
Other	1,696.7		1,649.1
Less: Accumulated depreciation	8,073.7		7,573.6
Net	19,102.6		17,961.8
CWIP	820.4		707.5
Net utility property, plant, and equipment	19,923.0		18,669.3
We Power generation	3,245.7		3,244.4
Renewable generation	716.5		193.3
Natural gas storage	245.9		244.8
Net non-utility energy infrastructure	4,208.1		3,682.5
Corporate services	180.4		171.0
Other	88.8		127.1
Less: Accumulated depreciation	805.0		731.5
Net	3,672.3		3,249.1
CWIP	24.8		82.5
Net non-utility and other property, plant, and equipment	3,697.1		3,331.6
Total property, plant, and equipment	$	23,620.1	$	22,000.9

Schedule of changes to our severance liability

Activity related to this severance liability for the years ended December 31 was as follows:

(in millions)	2019			2018
Severance liability at January 1	$	15.7		$	29.4
Severance payments	(7.2		)	(10.7		)
Other	(6.4		)	(3.0		)
Total severance liability at December 31	$	2.1		$	15.7