Property Plant and Equipment Property Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

Public Utility Property, Plant, and Equipment

Major classes of property, plant and equipment

(Millions of Dollars)	Dec. 31, 2023		Dec. 31, 2022
Property, plant and equipment, net
Electric plant	$	10,752	$	10,182
Plant to be retired (a)	248		266
CWIP	226		167
Total property, plant and equipment	11,226		10,615
Less accumulated depreciation	(2,690)		(2,486)
Property, plant and equipment, net	$	8,536	$	8,129

(a)Amounts include Tolk Unit 1 and 2 and coal generation assets at Harrington pending facility gas conversion. Amounts are reported net of accumulated depreciation.