Consolidated Balance Sheets (Parenthetical) (Unaudited) - USD ($) $ in Millions	Jun. 30, 2019	Sep. 30, 2018
ASSETS
Valuation allowance for deferred income taxes	$ 16.6	$ 17.7
Preferred Stock, Par or Stated Value Per Share	$ 0.1	$ 0.1
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	391,365,282	388,120,243
Common Stock, Shares, Outstanding	369,748,212	376,261,635
EQUITY
Treasury Stock, Shares	21,617,070	11,858,608

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