Property, Plant and Equipment, Net:

In millions20242023
Land and Improvements
$188 $195 
Buildings(a)
1,068 1,122 
Machinery and Equipment(b)    
7,246 7,686 
Construction-in-Progress
1,428 657 
9,930 9,660 
Less: Accumulated Depreciation(a)(b)
(4,672)(4,668)
Total
$5,258 $4,992 
(a) Includes gross assets under finance lease of $142 million and related accumulated depreciation of $36 million as of December 31, 2024, and gross assets under finance lease of $146 million and related accumulated depreciation of $31 million as of December 31, 2023.
(b) Includes gross assets under finance lease of $40 million and related accumulated depreciation of $21 million as of December 31, 2024, and gross assets under finance lease of $51 million and related accumulated depreciation of $21 million as of December 31, 2023.

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.