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Property, Plant and Equipment-Net (Tables)
 12 Months Ended
Dec. 31, 2022
Property, Plant and Equipment, Net [Abstract]  
Components of property, plant and equipment-net
Property, plant and equipment—net consists of the following:
 December 31,
 20222021
 (in millions)
Land$113 $68 
Machinery and equipment(1)
12,633 12,757 
Buildings and improvements(1)
914 915 
Construction in progress(1)
203 148 
Property, plant and equipment(2)
13,863 13,888 
Less: Accumulated depreciation and amortization7,426 6,807 
Property, plant and equipment—net$6,437 $7,081 
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(1)As of December 31, 2022, machinery and equipment, buildings and improvements, and construction in progress include impairment charges in 2022 of $354 million, $7 million and $25 million, respectively, which include impairment charges related to our U.K. operations of $204 million in 2022, and $182 million in 2021. As of December 31, 2021, machinery and equipment, buildings and improvements, and construction in progress include cumulative impairment charges related to our U.K. operations of $169 million, $5 million and $8 million, respectively, which were recorded in 2021.
(2)As of December 31, 2022 and 2021, we had property, plant and equipment that was accrued but unpaid of approximately $53 million and $35 million, respectively.
Summary of plant turnaround activity The following is a summary of capitalized plant turnaround costs:
 Year ended December 31,
 202220212020
 (in millions)
Net capitalized turnaround costs as of January 1$355 $226 $246 
Additions118 250 84 
Depreciation(134)(121)(104)
Impairment related to U.K. operations(21)— — 
Effect of exchange rate changes(6)— — 
Net capitalized turnaround costs as of December 31$312 $355 $226