OTHER CURRENT LIABILITIES - Schedule of Product Warranties (Details) - USD ($) $ in Millions	12 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2017
Other Liabilities, Current [Roll Forward]
Total product warranties - beginning of year	$ 54	$ 45	$ 44
Accruals for product warranties	23	22	14
Payments	(20)	(16)	(17)
Change in estimates and other	(7)	3	4
Total product warranties - end of year	50	54	45
Less: non-current product warranties (see Note 17)	(32)	(35)	(27)
Product warranties	$ 18	$ 19	$ 18

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and due after one year (or beyond the operating cycle if longer) for estimated claims under standard and extended warranty protection rights granted to customers.

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Amount of increase in the standard and extended product warranty accrual from warranties issued.

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