The components of net property, plant, equipment and mine development costs follow:
 December 31,
 20252024
Machinery and equipment$21,585 $16,319 
Mine development and other13,446 12,828 
Buildings and infrastructure12,046 10,667 
Proven and probable mineral reserves7,164 7,159 
Mobile equipment6,313 5,598 
Construction in progress5,523 9,381 
VBPPa
353 358 
Oil and gas propertiesb
— 35 
Total66,430 62,345 
Accumulated DD&A(25,694)(23,831)
Property, plant, equipment and mine development costs, net$40,736 $38,514 
a.Represents VBPP primarily acquired in connection with the 2007 acquisition of FMC.
b.Oil and gas properties under the full cost method are net of accumulated amortization and impairments of $27.5 billion at December 31, 2025, and $27.4 billion at December 31, 2024.

Historical Timeline

Fiscal YearFiled
2025Feb 13, 2026Showing above
2024Feb 14, 2025
2023Feb 16, 2024
2022Feb 15, 2023
2021Feb 15, 2022
2020Feb 16, 2021
2019Feb 14, 2020
2018Feb 15, 2019
2017Feb 20, 2018
2016Feb 24, 2017
2015Feb 26, 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.