XML 27 R14.htm IDEA: XBRL DOCUMENT v3.21.1
Inventories, Net
 3 Months Ended
Mar. 31, 2021
Inventory Disclosure [Abstract]  
Inventories, Net Inventories, Net
Inventories, net consisted of the following:
March 31,
2021		December 31,
2020
Raw materials$168 $170 
Work-in-process106 103 
Finished goods, net581 668 
Materials and supplies, net197 196 
Inventories, net – current$1,052 $1,137 
Materials and supplies, net consists of processing chemicals, maintenance supplies and spare parts, which will be consumed directly and indirectly in the production of our products.
At March 31, 2021 and December 31, 2020, inventory obsolescence reserves primarily for materials and supplies were $42 million and $41 million, respectively. Reserves for lower of cost or market and net realizable value were $16 million and $29 million at March 31, 2021 and December 31, 2020, respectively.