XML 77 R65.htm IDEA: XBRL DOCUMENT v3.20.2
Inventories (Details) - USD ($)
$ in Millions
Sep. 30, 2020
Dec. 31, 2019
Inventory Disclosure [Abstract]    
Finished goods $ 190.2 $ 372.2
Work in process 875.1 559.4
Raw materials, supplies and other 223.2 217.3
First-in, first-out inventory 1,288.5 1,148.9
Less: Excess of first-in, first-out cost over last-in, first-out cost (133.0) (131.9)
Net inventories $ 1,155.5 $ 1,017.0