Goodwill and Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Sep. 30, 2017
Indefinite-lived Intangible Assets [Line Items]
Amortization of intangibles	$ 4.6	$ 4.0	$ 13.2	$ 12.1
Indefinite-lived intangible assets	832.0		832.0
Indefinite-lived intangible assets, decrease			(1.9)
Wet Shave
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	182.2		182.2
Sun and Skin Care
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 476.1		$ 476.1
Feminine Care
Indefinite-lived Intangible Assets [Line Items]
Reporting unit, fair value in excess of carry value	100.00%		100.00%
Goodwill, weighted average cost of capital	9.70%		9.70%
Valuation, long term growth rate	0.50%		0.50%
Indefinite-lived intangible assets	$ 29.9		$ 29.9
All Other
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 143.8		$ 143.8
Skin Care
Indefinite-lived Intangible Assets [Line Items]
Reporting unit, fair value in excess of carry value	100.00%		100.00%
Goodwill, weighted average cost of capital	10.20%		10.20%
Valuation, long term growth rate	2.00%		2.00%
Wet Ones brand name
Indefinite-lived Intangible Assets [Line Items]
Valuation, long term growth rate	1.30%		1.30%
Indefinite-lived intangible, fair value in excess of carry value	100.00%		100.00%
Valuation, discount rate	9.80%		9.80%
Playtex brand name
Indefinite-lived Intangible Assets [Line Items]
Impairment charge					$ 312.0
Edge brand
Indefinite-lived Intangible Assets [Line Items]
Impairment charge					$ 7.0
Playtex brand name
Indefinite-lived Intangible Assets [Line Items]
Amortization of intangibles	$ 1.8		$ 5.4