INVESTMENTS IN NON-CONSOLIDATED JOINT VENTURES - Income Statement Information Of Non-Consolidated Joint Ventures (Details) - USD ($) $ in Millions	12 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2017
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Sales	$ 1,231	$ 1,101	$ 1,156
Gross profit	147	154	200
Net income	$ 63	$ 59	$ 101

The amount of net income (loss) reported by an equity method investment of the entity.

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