Inventories

3 Months Ended

Mar. 31, 2025

Inventory Disclosure [Abstract]

Inventories

Inventories

($ in millions)	March 31, 2025	December 31, 2024
Finished products	$1,131	$949
Work in process	251	235
Raw materials	681	613
Supplies	52	49
Total Inventories	$2,115	$1,846

Most U.S. inventories are valued using the last-in, first-out method. If the first-in, first-out ("FIFO") method of inventory valuation had been used, inventories would have been $172 million and $169 million higher as of March 31, 2025 and December 31, 2024, respectively.