Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2022	Sep. 30, 2021
Statement of Financial Position [Abstract]
Deferred Tax Assets, Valuation Allowance	$ 20.3	$ 4.2
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	399,040,704	397,190,100
Common Stock, Shares, Outstanding	347,377,037	356,015,843
Treasury Stock, Shares	51,663,667	41,174,257