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Inventories
9 Months Ended
Sep. 30, 2023
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories consist of the following:
September 30, 2023December 31, 2022
Raw materials$113.8 $177.2 
Work in process865.8 844.8 
Finished goods1,229.5 2,158.3 
Final price deferred(a)
49.4 184.2 
Operating materials and supplies194.7 178.6 
$2,453.2 $3,543.1 
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(a)Final price deferred is product that has shipped to customers, but the price has not yet been agreed upon.