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Property, Plant, and Equipment | 12 Months Ended
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Dec. 31, 2021
Property, Plant and Equipment [Abstract] |
PROPERTY, PLANT, AND EQUIPMENT | 7. PROPERTY, PLANT, AND EQUIPMENT Summary by Major Class Major classes of property, plant, and equipment, including assets held under finance leases, consisted of the following (in millions):
| December 31,
| 2021 |  | 2020
Land | $ | 494 |  |  | $ | 485 |
Crude oil processing facilities | 32,744 |  |  | 32,246 |
Transportation and terminaling facilities | 5,747 |  |  | 5,290 |
Waste and renewable feedstocks processing facilities | 1,826 |  |  | 631 |
Corn processing facilities | 1,216 |  |  | 1,212 |
Administrative buildings | 1,055 |  |  | 1,038 |
Finance lease ROU assets (see Note 6) | 2,293 |  |  | 1,902 |
Other | 1,835 |  |  | 1,764 |
Construction in progress | 1,862 |  |  | 2,399 |
Property, plant, and equipment, at cost | 49,072 |  |  | 46,967 |
Accumulated depreciation | (18,225) |  |  | (16,578) |
Property, plant, and equipment, net | $ | 30,847 |  |  | $ | 30,389 |
Depreciation expense for the years ended December 31, 2021, 2020, and 2019 was $1.7 billion, $1.6 billion, and $1.5 billion, respectively. Changes in Useful Lives In September 2021 and 2020, we reduced the estimated useful lives of our ethanol plants in Jefferson, Wisconsin and Riga, Michigan, respectively, which reduced their net book values to estimated salvage value. The additional depreciation expense for the years ended December 31, 2021 and 2020 of $48 million and $30 million, respectively, resulting from these changes did not have a material impact on our results of operations nor was there a material impact to our financial position. The Jefferson plant was temporarily idled in 2020 at the onset of the COVID-19 pandemic in response to the decreased demand for ethanol resulting from the effects of the pandemic on our business, and we had previously evaluated this plant for potential impairment assuming that operations would resume. However, we completed an evaluation of the plant during the third quarter of 2021 and concluded that it was no longer a strategic asset for our ethanol business. The plant’s operations permanently ceased at that time. The Riga plant was temporarily idled in 2019 due to corn quality issues with the local third-party corn feedstock supply. Although we expected operations to resume after an improved corn harvest, we completed an evaluation of this plant during the third quarter of 2020 and concluded that it was no longer a strategic asset for our ethanol business. The plant’s operations permanently ceased at that time.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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