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Property, Plant and Equipment-Net (Tables)
3 Months Ended
Mar. 31, 2023
Property, Plant and Equipment, Net [Abstract]  
Components of property, plant and equipment-net
Property, plant and equipment—net consists of the following:
 March 31, 
 2023
December 31, 
 2022
 (in millions)
Land$113 $113 
Machinery and equipment12,672 12,633 
Buildings and improvements920 914 
Construction in progress226 203 
Property, plant and equipment(1)
13,931 13,863 
Less: Accumulated depreciation and amortization7,637 7,426 
Property, plant and equipment—net$6,294 $6,437 
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(1)As of March 31, 2023 and December 31, 2022, we had property, plant and equipment that was accrued but unpaid of approximately $45 million and $53 million, respectively. As of March 31, 2022 and December 31, 2021, we had property, plant and equipment that was accrued but unpaid of approximately $22 million and $35 million, respectively.
Summary of plant turnaround activity
 Three months ended 
 March 31,
 20232022
 (in millions)
Net capitalized turnaround costs as of January 1$312 $355 
Additions
Depreciation(31)(36)
Effect of exchange rate changes— (1)
Net capitalized turnaround costs as of March 31
$288 $323