Property, Plant, and Equipment

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

PROPERTY, PLANT AND EQUIPMENT

PROPERTY, PLANT, AND EQUIPMENT

Property, plant, and equipment consisted of the following utility and non-utility and other assets at December 31:

(in millions)	2016		2015
Utility property, plant, and equipment	$	24,185.1	$	22,803.7
Less: Accumulated depreciation	7,609.7		7,358.2
Net	16,575.4		15,445.5
CWIP	320.0		672.7
Net utility property, plant, and equipment	16,895.4		16,118.2
Non-utility and other property, plant, and equipment	3,520.3		3,482.2
Less: Accumulated depreciation	604.9		560.9
Net	2,915.4		2,921.3
CWIP	104.7		150.2
Net non-utility and other property, plant, and equipment	3,020.1		3,071.5
Total property, plant, and equipment	$	19,915.5	$	19,189.7