Inventories (Tables)

9 Months Ended

Jun. 30, 2019

Inventory Disclosure [Abstract]

Summary of inventories

Inventories are stated at the lower of cost (using FIFO or average methods) or market (determined on the basis of estimated realizable values) and are summarized as follows (in millions):

	June 30, 2019		September 30, 2018
Finished goods	$	154	$	170
Work in process	42		41
Raw materials, parts and supplies	295		266
Total	$	491	$	477