Note 3. Inventories (Tables)

12 Months Ended

Sep. 30, 2017

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories consisted of the following:

	September 30,
(in millions)	2017		2016
Raw materials and supplies	$	552	$	502
Work-in-process	37		35
Finished goods	146		123
Inventories	$	735	$	660