Land, buildings and equipment, net was as follows:
Estimated Useful LivesDecember 31,
(in millions except as noted)(Years)20252024
Land$$
Building and building equipment
25 to 50
Leasehold improvementsVaries223 214 
IT, other equipment and office furniture
3 to 15
907 831 
Other
4 to 20
Construction in progress13 12 
Subtotal1,151 1,066 
Accumulated depreciation(970)(899)
Land, Buildings and Equipment, Net$181 $167 

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.