Property, plant and equipment comprise the following at September 30:
20252024Estimated Useful Life
Utility:  
Distribution$6,024 $5,595 
Transmission134 125 
General and other746 706 
Work in process130 94 
Total utility7,034 6,520 
Non-utility:  
Land202 172 
Buildings and improvements445 429 
10 - 40 years
Transportation equipment242 233 
3 - 10 years
Equipment, primarily cylinders and tanks4,052 3,985 
5 - 30 years
Electric generation48 48 
25 - 40 years
Pipeline and related assets1,710 1,598 
25 - 40 years
Other467 430 
1 - 12 years
Work in process150 258 
Total non-utility7,316 7,153 
Total property, plant and equipment$14,350 $13,673 

Historical Timeline

Fiscal YearFiled
2025Nov 21, 2025Showing above
2024Nov 26, 2024
2023Nov 29, 2023
2022Nov 21, 2022
2021Nov 19, 2021
2020Nov 20, 2020
2019Nov 26, 2019
2018Nov 20, 2018
2017Nov 21, 2017
2016Nov 22, 2016
2015Nov 30, 2015

About PP&E Disclosures

The PP&E disclosure details a company's physical asset base — land, buildings, machinery, and equipment — along with the depreciation methods and useful life assumptions that determine how these costs flow through the income statement. Capitalization policy thresholds reveal management's judgment on the boundary between expense and asset, directly affecting both reported earnings and asset values.

Key signals: changes in estimated useful lives or depreciation methods can materially shift reported earnings without any operational change. Compare capital expenditures against depreciation expense — when capex consistently trails depreciation, the asset base may be aging and underinvested. Watch for large asset impairments or write-downs that signal overvalued carrying amounts. Asset retirement obligations reveal future environmental or decommissioning costs that are often underappreciated. Compare PP&E intensity (PP&E-to-revenue) against industry peers to assess capital efficiency and competitive positioning.