PROPERTY, PLANT AND EQUIPMENT
|12 Months Ended|
Dec. 31, 2021
|Property, Plant and Equipment [Abstract]|
|PROPERTY, PLANT AND EQUIPMENT||PROPERTY, PLANT AND EQUIPMENT
Property, plant and equipment, including both owned assets as well as assets subject to finance leases, consists of the following as of December 31, 2021 and 2020 (in millions):
Property, plant and equipment purchased on account was $248 and $319 million as of December 31, 2021 and 2020, respectively.
We continually monitor our aircraft fleet utilization in light of current and projected volume levels, aviation fuel prices and other factors. Additionally, we monitor all other property, plant and equipment categories for any indicators that the carrying value of the assets may not be recoverable. We recognized impairment charges of $71 million during the year ended December 31, 2021, due to the reevaluation of certain facility projects. There were no material impairment charges during the year ended December 31, 2020.
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.
Reference 1: http://www.xbrl.org/2003/role/disclosureRef