SHAREHOLDERS' EQUITY, Common Stock Dividends Declared and Paid (Details) - $ / shares	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Equity [Abstract]
Dividends declared (in dollars per share)	$ 2.00	$ 1.80	$ 1.68
Dividends paid (in dollars per share)	$ 1.95	$ 1.77	$ 1.60
Dividend payout ratio	19.40%	18.60%	21.10%