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Inventories (Notes)
3 Months Ended
Dec. 31, 2025
Inventory [Abstract]  
Inventories INVENTORIES
December 31,
2025
September 30,
2025
Raw materials and supplies$92.7 $88.3 
Work in process0.1 0.1 
Finished products342.4 242.0 
   Inventories$435.2 $330.4