The depreciable lives and net book value of our property and equipment are as follows (dollars in millions):
Net Book Value at May 31,
Range20252024
Wide-body aircraft and related equipment
18 to 30 years
$18,202 $17,936 
Narrow-body and feeder aircraft and related equipment
5 to 30 years
1,750 1,849 
Package handling and ground support equipment
3 to 15 years
7,573 7,607 
Information technology
3 to 7 years
1,568 1,722 
Vehicles and trailers
3 to 15 years
4,075 4,053 
Facilities and other
1 to 33 years
8,474 8,324 

Historical Timeline

Fiscal YearFiled
2025Jul 21, 2025Showing above
2024Jul 15, 2024
2023Jul 17, 2023
2022Jul 18, 2022
2021Jul 19, 2021
2020Jul 20, 2020
2019Jul 16, 2019
2018Jul 16, 2018
2017Jul 17, 2017
2016Jul 18, 2016

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.