Property, Plant And Equipment (Tables)

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

Schedule Of Property, Plant And Equipment

Our property, plant and equipment on the Consolidated Balance Sheets are classified as follows: 

At December 31, (in millions)	2023		2022
Property, Plant and Equipment
Gas Distribution Utility	$	18,154.5	$	16,576.4
Electric Utility	7,907.9		7,162.4
Corporate	274.2		271.7
Construction Work in Process	1,261.1		1,398.2
Renewable Generation Assets(1)	1,434.4		702.2
Non-Utility and Other	1,450.0		1,440.4
Total Property, Plant and Equipment	$	30,482.1	$	27,551.3
Accumulated Depreciation and Amortization
Gas Distribution Utility	$	(3,924.4)	$	(3,678.1)
Electric Utility	(2,709.5)		(2,557.4)
Corporate	(174.2)		(160.0)
Renewable Generation Assets(1)	(64.5)		(29.7)
Non-Utility and Other	(1,334.6)		(1,283.5)
Total Accumulated Depreciation and Amortization	$	(8,207.2)	$	(7,708.7)
Net Property, Plant and Equipment	$	22,274.9	$	19,842.6

(1)Our renewable generation assets are part of our electric segment and represent Non-Utility Property, owned and operated by JVs between NIPSCO and unrelated tax equity partners, and depreciated straight-line over 30 years. Refer to Note 4, "Noncontrolling Interest," for additional information.

Schedule Of Depreciation Provisions For Utility Plant As A Percentage Of The Original Cost

The weighted average depreciation provisions for utility plant, as a percentage of the original cost, for the periods ended December 31, 2023, 2022 and 2021 were as follows:

	2023		2022		2021
Electric Operations	3.5	%	3.1	%	3.4	%
Gas Distribution Operations	2.4	%	2.3	%	2.2	%