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Property, Plant and Equipment-Net (Tables) | 12 Months Ended
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Dec. 31, 2021
Property, Plant and Equipment, Net [Abstract] |
Components of property, plant and equipment-net | Property, plant and equipment—net consists of the following:
| December 31,
| 2021 |  | 2020
| (in millions)
Land | $ | 68 |  |  | $ | 68 |
Machinery and equipment(1) | 12,757 |  |  | 12,539 |
Buildings and improvements(1) | 915 |  |  | 895 |
Construction in progress(1) | 148 |  |  | 275 |
Property, plant and equipment(2) | 13,888 |  |  | 13,777 |
Less: Accumulated depreciation and amortization | 6,807 |  |  | 6,145 |
Property, plant and equipment—net | $ | 7,081 |  |  | $ | 7,632 |
_______________________________________________________________________________ (1)As of December 31, 2021, machinery and equipment, buildings and improvements, and construction in progress include impairment charges in 2021 of $169 million, $5 million and $8 million, respectively. (2)As of December 31, 2021 and 2020, we had property, plant and equipment that was accrued but unpaid of approximately $35 million and $43 million, respectively.
Summary of plant turnaround activity | The following is a summary of capitalized plant turnaround costs:
| Year ended December 31,
| 2021 |  | 2020 |  | 2019
| (in millions)
Net capitalized turnaround costs at beginning of the year | $ | 226 |  |  | $ | 246 |  |  | $ | 252 |
Additions | 250 |  |  | 84 |  |  | 102 |
Depreciation | (121) |  |  | (104) |  |  | (112) |
Effect of exchange rate changes | — |  |  | — |  |  | 4 |
Net capitalized turnaround costs at end of the year | $ | 355 |  |  | $ | 226 |  |  | $ | 246 |

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- Definition Tabular disclosure of expenditures related to plant turnarounds, which are capitalized into property, plant and equipment when incurred. + References No definition available. + Details
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- Definition Tabular disclosure of the salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. + References No definition available. + Details
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- References No definition available. + Details
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