Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2023	Sep. 30, 2022
Statement of Financial Position [Abstract]
Common stock, par value (USD per share)	$ 1	$ 1
Common stock, shares authorized (shares)	640,000,000	640,000,000
Common stock, shares issued (shares)	370,594,401	364,639,901
Treasury Stock, Common, Shares	80,202,608	81,283,191