v3.22.4
Property, Plant and Equipment
 12 Months Ended
Dec. 31, 2022
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment PROPERTY, PLANT AND EQUIPMENT
Property, plant and equipment are comprised of the following at December 31:
Useful Life20222021
Land and improvements (1)
8 - 20 years (1)
$347 $350 
Buildings, structures and related equipment
5 - 40 years
2,120 2,271 
Machinery, equipment and other
2 - 20 years
7,192 7,259 
Total cost9,659 9,880 
Less: Accumulated depreciation (5,121)(5,003)
Property, plant and equipment, less accumulated depreciation
 $4,538 $4,877 
(1)Useful life excludes land.
Depreciation expense relating to property, plant and equipment was $839 million, $852 million and $1,009 million for the years ended December 31, 2022, 2021 and 2020, respectively. See "Note 18. Restructuring, Impairment and Other" for additional information on property, plant and equipment impairments.