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Property, Plant and Equipment-Net (Tables)
 12 Months Ended
Dec. 31, 2024
Property, Plant and Equipment, Net [Abstract]  
Components of property, plant and equipment-net
Property, plant and equipment—net consists of the following:
 December 31,
 20242023
 (in millions)
Land$114 $114 
Machinery and equipment13,801 13,716 
Buildings and improvements1,011 1,020 
Construction in progress482 394 
Property, plant and equipment(1)
15,408 15,244 
Less: Accumulated depreciation and amortization8,673 8,103 
Property, plant and equipment—net$6,735 $7,141 
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(1)As of December 31, 2024 and 2023, we had property, plant and equipment that was accrued but unpaid of approximately $101 million and $68 million, respectively.
Summary of plant turnaround activity
The following is a summary of capitalized plant turnaround costs:
 Year ended December 31,
 202420232022
 (in millions)
Net capitalized turnaround costs as of January 1$352 $312 $355 
Additions186 165 118 
Depreciation(171)(138)(134)
Impairment related to U.K. operations— — (21)
Acquisition of Waggaman ammonia production facility— 16 — 
Effect of exchange rate changes and other(4)(3)(6)
Net capitalized turnaround costs as of December 31$363 $352 $312