STOCK-BASED COMPENSATION - Schedule of Changes in Incentive Awards Outstanding (Details) - Incentive Shares Member shares in Thousands	12 Months Ended
	Sep. 30, 2025 $ / shares shares
Shares
Beginning of year (in shares) | shares	4,634
Granted (in shares) | shares	1,690
Assumed (in shares) | shares	1,097
Earned/vested (in shares) | shares	(2,291)
Canceled (in shares) | shares	(253)
End of year (in shares) | shares	4,877
Average Grant Date Fair Value Per Share
Beginning of year (in dollars per share) | $ / shares	$ 91.46
Granted (in dollars per share) | $ / shares	109.21
Assumed (in dollars per share) | $ / shares	114.57
Earned/vested (in dollars per share) | $ / shares	96.41
Canceled (in dollars per share) | $ / shares	105.99
End of year (in dollars per share) | $ / shares	$ 98.52