Inventories (Tables)

12 Months Ended

Sep. 30, 2018

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories are as follows (in millions):

	September 30,
	2018			2017
Finished goods and work in process	$	867.0		$	905.0
Raw materials		730.0			614.2
Supplies and spare parts		368.2			360.7
Inventories at FIFO cost		1,965.2			1,879.9
LIFO reserve		(135.6	)		(82.6	)
Net inventories	$	1,829.6		$	1,797.3