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Subsequent Events (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Nov. 15, 2018
Sep. 30, 2018
Subsequent Event [Line Items]    
Equity from divestiture   $ 1,546.8
Energizer [Member] | Global Battery And Lighting [Member] | Subsequent Event [Member]    
Subsequent Event [Line Items]    
Purchase price $ 200.0  
Energizer [Member] | Global Auto Care [Member] | Subsequent Event [Member]    
Subsequent Event [Line Items]    
Purchase price 1,250.0  
Cash from divestiture 937.5  
Equity from divestiture $ 312.5