Property, Plant and Equipment

12 Months Ended

Sep. 30, 2024

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Note 11 — Property, Plant and Equipment

Property, plant and equipment comprise the following at September 30:

	2024		2023		Estimated Useful Life
Utility:
Distribution	$	5,595	$	5,204
Transmission	125		123
General and other	706		660
Work in process	94		95
Total Utility	6,520		6,082
Non-utility:
Land	172		174
Buildings and improvements	429		418		10 - 40 years
Transportation equipment	233		238		3 - 10 years
Equipment, primarily cylinders and tanks	3,985		3,903		5 - 30 years
Electric generation	48		190		25 - 40 years
Pipeline and related assets	1,598		1,577		25 - 40 years
Other	430		390		1 - 12 years
Work in process	258		156
Total non-utility	7,153		7,046
Total property, plant and equipment	$	13,673	$	13,128

The average composite depreciation rates at our Gas Utility and Electric Utility were as follows:

	2024		2023		2022
Regulated natural gas utilities	2.6	%	2.4	%	2.6	%
Electric Utility	2.5	%	2.3	%	2.4	%

Depreciation expense totaled $496, $476 and $460 for Fiscal 2024, Fiscal 2023 and Fiscal 2022, respectively.