Inventories (Tables)

6 Months Ended

Mar. 31, 2019

Inventory Disclosure [Abstract]

Schedule of Inventories

The components of inventories were as follows (in millions):

	March 31, 2019			September 30, 2018
Finished goods and work in process	$	956.5		$	867.0
Raw materials		844.0			730.0
Spare parts and supplies		460.8			368.2
Inventories at FIFO cost		2,261.3			1,965.2
LIFO reserve		(164.4	)		(135.6	)
Net inventories	$	2,096.9		$	1,829.6