Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2024	Sep. 30, 2023
Statement of Financial Position [Abstract]
Deferred Tax Assets, Valuation Allowance	$ 14.7	$ 14.8
Preferred Stock, Par or Stated Value Per Share	$ 0.10	$ 0.10
Preferred Stock, Shares Authorized	30,000,000	30,000,000
Preferred Stock, Shares Issued	0	0
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	1,000,000,000	1,000,000,000
Common Stock, Shares, Issued	402,624,949	401,202,253
Common Stock, Shares, Outstanding	330,196,301	334,848,565
Treasury Stock, Common, Shares	72,428,648	66,353,688