XML 21 R12.htm IDEA: XBRL DOCUMENT v3.23.2
INVENTORIES
6 Months Ended
Jun. 30, 2023
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 June 30, 2023 and December 31, 2022, inventories consisted of the following:

millionsJune 30, 2023December 31, 2022
Raw materials$120 $120 
Materials and supplies850 913 
Commodity inventory and finished goods1,172 1,147 
2,142 2,180 
Revaluation to LIFO(121)(121)
Total
$2,021 $2,059