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PROPERTY, PLANT AND EQUIPMENT
 6 Months Ended
Jun. 30, 2024
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT PROPERTY, PLANT AND EQUIPMENT
The following table summarizes our property, plant and equipment at June 30, 2024 and December 31, 2023:
Millions of dollarsJune 30, 2024December 31, 2023
Land$29 $29 
Buildings949 893 
Machinery and equipment6,631 6,571 
Accumulated depreciation(5,355)(5,259)
Property, plant and equipment, net $2,254 $2,234 
During the six months ended June 30, 2024, we disposed of land, buildings, machinery and equipment with a net book value of $16 million, compared to $10 million in the same period of 2023. The net gain on the disposals was not material for the six months ended June 30, 2024 and 2023, respectively.