v3.25.2
Inventories
6 Months Ended
Jun. 30, 2025
Inventory Disclosure [Abstract]  
Inventories Inventories
June 30, 2025December 31, 2024
Finished goods$478 $458 
Work-in-process959 903 
Purchased raw materials455 408 
Operating supplies72 71 
Total inventories$1,964 $1,840 
As of June 30, 2025 and December 31, 2024, the portion of inventories valued on a last-in, first-out (“LIFO”) basis was $605 and $544, respectively. If valued on an average-cost basis, total inventories would have been $291 and $280 higher as of June 30, 2025 and December 31, 2024, respectively.