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Significant Accounting Policies and Practices and Recent Accounting Pronouncements - Goodwill and Intangibles (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Finite-Lived Intangible Assets [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	14 years
Indefinite-lived Intangible Assets Acquired	$ 341.5	$ 46.7
Goodwill, Acquired During Period	1,054.7	$ 65.8
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	(31.9)
Goodwill and Intangible Asset Impairment	(60.2)
Goodwill, Impairment Loss	$ (28.3)
Customer Relationships [Member] | Weighted average
Finite-Lived Intangible Assets [Line Items]
Amortization period, intangible asset	18 years 6 months
Customer Relationships [Member] | Maximum
Finite-Lived Intangible Assets [Line Items]
Amortization period, intangible asset	20 years
Technology Assets [Member] | Weighted average
Finite-Lived Intangible Assets [Line Items]
Amortization period, intangible asset	11 years 1 month 7 days
Technology Assets [Member] | Maximum
Finite-Lived Intangible Assets [Line Items]
Amortization period, intangible asset	18 years
Trade Names [Member] | Weighted average
Finite-Lived Intangible Assets [Line Items]
Amortization period, intangible asset	16 years 2 months 12 days
Global batteries and appliances [Member]
Finite-Lived Intangible Assets [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	54.00%
Hardware and home improvement [Member]
Finite-Lived Intangible Assets [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	38.00%
Global Pet Supplies [Member]
Finite-Lived Intangible Assets [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	29.00%
Home and Garden [Member]
Finite-Lived Intangible Assets [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	66.00%
FOH [Member] | Trademarks and Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets Acquired	$ 9.9
Goodwill, Acquired During Period	$ 16.2

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