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INVENTORIES
3 Months Ended
Mar. 31, 2025
Inventory Disclosure [Abstract]  
INVENTORIES
NOTE 3 - INVENTORIES

Finished goods primarily represent oil, which is carried at the lower of weighted-average cost or net realizable value, and caustic soda and chlorine, which are valued under the LIFO method. As of March 31, 2025 and December 31, 2024, inventories consisted of the following:
millionsMarch 31, 2025December 31, 2024
Raw materials$110 $113 
Materials and supplies1,274 1,279 
Commodity inventory and finished goods848 796 
2,232 2,188 
Revaluation to LIFO(93)(93)
Total
$2,139 $2,095