SHARE-BASED AND OTHER COMPENSATION, Employee Stock Purchase Plan (Details) - Employee Stock Purchase Plan - USD ($)	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for grant (in shares) (up to)	13,100,000
Limit on the number shares that eligible employees may purchase in any calendar year (lesser than) (in shares)	1,000
Limit on the value of shares that eligible employees may purchase in any calendar year	$ 25,000
Purchase price of the stock in relation to the market price (one day prior to the purchase)	85.00%
Number of shares sold during the period (in shares)	361,000	428,000	416,000
Discount from market value	15.00%	15.00%	15.00%
RSU share-based compensation amortization	$ 6,000,000	$ 7,000,000	$ 6,000,000