STOCK-BASED COMPENSATION - Schedule of Changes in Shares Subject to Options (Details) - Employee Stock Option $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Sep. 30, 2025 USD ($) $ / shares shares
Weighted- Average Exercise Price Per Share
Beginning of year (in dollars per share) | $ / shares	$ 51.71
Exercised (in dollars per share) | $ / shares	50.45
Canceled (in dollars per share) | $ / shares	46.92
End of year (in dollars per share) | $ / shares	54.16
Exercisable at end of year(in dollars per share) | $ / shares	$ 54.16
Shares
Beginning of year (in shares) | shares	288
Options exercised (in shares) | shares	(189)
Options canceled (in shares) | shares	(1)
End of year (in shares) | shares	98
Exercisable at end of year (in shares) | shares	98
Total Intrinsic Value of Shares
Total intrinsic value of awards, at end of year | $	$ 7
Total intrinsic value of awards, exercisable at end of year | $	$ 7
Average Remaining Life (Years)
Average remaining life, at end of year	1 year
Average remaining life, exercisable at year end	1 year