v3.26.3
INVENTORIES
 9 Months Ended
Sep. 30, 2026
Inventory Disclosure [Abstract]  
INVENTORIES
NOTE 7. INVENTORIES
Inventories consisted of the following:
September 30, 2026December 31, 2025September 30, 2025
Inventories($ in millions)
Supplies$162.7 $156.2 $155.5 
Raw materials214.8 204.7 200.9 
Work in process198.9 178.1 219.7 
Finished goods488.8 413.9 541.5 
Inventories excluding LIFO reserve1,065.2 952.9 1,117.6 
LIFO reserve(203.0)(168.4)(150.7)
Inventories, net$862.2 $784.5 $966.9 
Inventories under the last-in, first-out (LIFO) method are based on annual estimates of quantities and costs as of year-end; therefore, the condensed financial statements at September 30, 2026, reflect certain estimates relating to inventory quantities and costs at December 31, 2026. The replacement cost of our inventories would have been approximately $203.0 million, $168.4 million and $150.7 million higher than reported at September 30, 2026, December 31, 2025 and September 30, 2025, respectively.