INCOME TAXES, U.S. and Foreign Components of Pre-Tax Income (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
U.S. and foreign components of income before income taxes [Abstract]
U.S.	$ 2,608	$ 2,534	$ 2,193
Foreign	106	109	87
Pre-tax income	$ 2,714	$ 2,643	$ 2,280