Guarantor and Non-Guarantor Financial Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended										3 Months Ended					3 Months Ended					3 Months Ended							3 Months Ended					3 Months Ended
	Dec. 31, 2012		Dec. 31, 2011	Sep. 30, 2012		Dec. 31, 2012 Senior Notes Due May 2021 [Member]	Sep. 30, 2012 Senior Notes Due May 2021 [Member]	Dec. 31, 2012 Senior Notes Due May 2022 [Member]	Sep. 30, 2012 Senior Notes Due May 2022 [Member]	Jun. 30, 2012 Senior Notes Due May 2022 [Member]	Dec. 31, 2012 Parent Company [Member]		Dec. 31, 2011 Parent Company [Member]	Sep. 30, 2012 Parent Company [Member]		Dec. 31, 2012 Guarantor Subsidiaries [Member]		Dec. 31, 2011 Guarantor Subsidiaries [Member]	Sep. 30, 2012 Guarantor Subsidiaries [Member]		Dec. 31, 2012 Non-Guarantor Subsidiaries [Member]		Dec. 31, 2011 Non-Guarantor Subsidiaries [Member]	Sep. 30, 2012 Non-Guarantor Subsidiaries [Member]		Dec. 31, 2012 Energizer Receivables Funding Corp. [Member]	Sep. 30, 2012 Energizer Receivables Funding Corp. [Member]	Dec. 31, 2012 Consolidation, Eliminations [Member]		Dec. 31, 2011 Consolidation, Eliminations [Member]	Sep. 30, 2012 Consolidation, Eliminations [Member]		Dec. 31, 2012 Parent [Member]	Dec. 31, 2011 Parent [Member]	Dec. 31, 2011 Scenario, Previously Reported [Member]	Dec. 31, 2011 Scenario, Previously Reported [Member] Parent Company [Member]	Dec. 31, 2011 Scenario, Previously Reported [Member] Guarantor Subsidiaries [Member]	Dec. 31, 2011 Scenario, Previously Reported [Member] Non-Guarantor Subsidiaries [Member]	Dec. 31, 2011 Scenario, Previously Reported [Member] Consolidation, Eliminations [Member]	Dec. 31, 2011 Restatement Adjustment [Member]	Dec. 31, 2011 Restatement Adjustment [Member] Parent Company [Member]	Dec. 31, 2011 Restatement Adjustment [Member] Guarantor Subsidiaries [Member]	Dec. 31, 2011 Restatement Adjustment [Member] Non-Guarantor Subsidiaries [Member]	Dec. 31, 2011 Restatement Adjustment [Member] Consolidation, Eliminations [Member]
Long-term Debt	$ 2,263.7			$ 2,370.1		$ 600.0	$ 600.0	$ 498.7	$ 498.6	$ 500.0
Debt Instrument, Interest Rate, Stated Percentage						4.70%	4.70%	4.70%
Income Statement [Abstract]
Net sales	1,192.5		1,198.1								0		0			690.9		704.2			640.4		653.5					(138.8)		(159.6)
Cost of products sold	630.9		633.6								0		0			413.5		415.5			357.2		376.2					(139.8)		(158.1)
Gross profit	561.6		564.5								0		0			277.4		288.7			283.2		277.3					1.0		(1.5)
Selling, general and administrative expense	200.5		214.1								0		0			89.6		103.3			110.9		110.8					0		0
Advertising and sales promotion expense	94.8		96.4								0		0			47.5		42.3			47.3		54.1					0		0
Research and development expense	24.6		25.6								0		0			24.5		25.5			0.1		0.1					0		0
2011 Household Products restructuring	0		(9.2)										0					0.2					(9.4)							0
2013 restructuring	49.0		0								0					44.5					4.5							0
Pension curtailment	(37.4)		0								0					(37.4)					0							0
Interest expense	33.5		29.9								32.0		28.8			0		(0.1)			1.5		1.2					0		0
Intercompany Interest (Income) Expense	0		0								(31.3)		(28.2)			31.4		28.0			(0.1)		0.2					0		0
Other financing income/(expense), net	7.9		(0.7)								0		0			2.2		1.0			5.7		(1.7)					0		0
Intercompany Dividends and Service Fees	0		0								0		0			4.4		3.5			(4.4)		(3.5)					0		0
Equity in Earnings of Subsidiaries	0		0								(131.5)		(145.4)			(83.6)		(90.0)			0		0					215.1		235.4
Earnings before income taxes	188.7		208.4								130.8		144.8			154.3		175.0			117.7		125.5					(214.1)		(236.9)					208.4	144.8	182.6	125.5	(244.5)	0	0	(7.6)	0	7.6
Income tax provision	58.9		64.6								1.0		1.0			28.8		35.7			28.1		28.0					1.0		(0.1)
Net earnings	129.8		143.8								129.8		143.8			125.5		139.3			89.6		97.5					(215.1)		(236.8)					143.8	143.8	146.9	97.5	(244.4)	0	0	(7.6)	0	7.6
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Other comprehensive income/(loss), net of tax	22.0		(23.9)								22.0		(23.9)			12.9		(5.4)			18.7		(25.7)					(31.6)		31.1
Total comprehensive income	151.8		119.9								151.8		119.9			138.4		133.9			108.3		71.8					(246.7)		(205.7)
Current Assets
Cash and cash equivalents	787.1		476.9								0		6.5			10.6		14.5			776.5		455.9					0		0
Accounts Receivable, Net, Current	684.8	[1]		676.7	[2]						0	[1]		0	[2]	3.6	[1]		4.1	[2]	681.2	[1]		672.6	[2]	368.8	369.1	0	[1]		0	[2]
Inventories	637.9			672.4							0			0		327.7			341.4		340.2			362.1				(30.0)			(31.1)
Other current assets	465.5			455.0							3.3			0.4		222.4			210.8		233.1			232.9				6.7			10.9
Total current assets	2,575.3			2,522.6							3.3			4.4		564.3			565.5		2,031.0			1,972.9				(23.3)			(20.2)
Investment in Subsidiaries	0			0							6,705.8			6,552.5		1,839.6			1,760.8		0			0				(8,545.4)			(8,313.3)
Intercompany Receivables	0	[3]		0	[3]						0	[3]		0	[3]	4,212.5	[3]		4,249.9	[3]	239.6	[3]		168.6	[3]			(4,452.1)	[3]		(4,418.5)	[3]
Intercompany Notes Receivable	0			0							2,345.0			2,413.3		22.4			22.4		8.8			11.0				(2,376.2)			(2,446.7)
Property, plant and equipment, net	806.8			848.5							0			0		514.7			553.1		292.1			295.4				0			0
Goodwill	1,473.3			1,469.5							0			0		1,104.9			1,104.9		368.4			364.6				0			0
Other Intangible assets, net	1,850.0			1,853.7							0			0		1,641.8			1,646.8		208.2			206.9				0			0
Other assets	39.9			36.9							11.7			12.4		12.7			9.7		15.5			14.8				0			0
Total assets	6,745.3			6,731.2							9,065.8			8,982.6		9,912.9			9,913.1		3,163.6			3,034.2				(15,397.0)			(15,198.7)
Liabilities [Abstract]
Liabilities, Current	1,233.3			1,307.5							207.2			300.0		357.2			372.2		671.7			635.2				(2.8)			0.1
Intercompany Payables	0	[3]		0	[3]						4,452.1	[3]		4,418.5	[3]	0	[3]		0	[3]	0	[3]		0	[3]			(4,452.1)	[3]		(4,418.5)	[3]
Intercompany Notes Payable	0			0							0			0		2,353.8			2,424.3		22.4			22.4				(2,376.2)			(2,446.7)
Long-term debt	2,138.7			2,138.6							2,138.7			2,138.6		0			0		0			0				0			0
Other liabilities	1,176.9			1,215.6							71.4			56.0		896.2			954.7		209.3			204.9				0			0
Liabilities	4,548.9			4,661.7							6,869.4			6,913.1		3,607.2			3,751.2		903.4			862.5				(6,831.1)			(6,865.1)
Stockholders' Equity Attributable to Parent [Abstract]
Stockholders' Equity Attributable to Parent	2,196.4			2,069.5							2,196.4			2,069.5		6,305.7			6,161.9		2,260.2			2,171.7				(8,565.9)			(8,333.6)
Total liabilities and shareholders' equity	6,745.3			6,731.2							9,065.8			8,982.6		9,912.9			9,913.1		3,163.6			3,034.2				(15,397.0)			(15,198.7)
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net Cash Provided by (Used in) Operating Activities	71.6		27.8								(21.9)		3.8			27.4		45.2			86.6		(13.6)					(20.5)		(7.6)					27.8	(17.8)	64.2	(18.6)	0	0	21.6	(19.0)	5.0	(7.6)
Cash flow from investing activities
Payments to Acquire Property, Plant, and Equipment	(15.4)		(18.0)								0		0			(10.3)		(12.3)			(5.1)		(5.7)					0		0
Proceeds from sale of assets	0.1		16.9								0		0			0		0			0.1		16.9					0		0
Proceeds From Intercompany Notes, Investing Activities	0		0													0		0			5.1		0					(111.6)		(1.5)			106.5	1.5
Payments for Intercompany Notes, Investing Activities	0		0													0		0			0		5.0					65.0		(5.0)			(65.0)	0
Change in Intercompany Receivable (Payable), Investing Activities	0		0													(33.6)		(137.0)			(60.0)		(105.0)					93.6		242.0			0	0
Payments For Intercompany Equity Contributions, Investing Activities			0										0					(3.0)					0							3.0
Payments for (Proceeds from) Other Investing Activities	(0.1)		(1.5)								0		0			0		(1.4)			(0.1)		(0.1)					0		0
Net Cash Provided by (Used in) Investing Activities	(15.4)		(2.6)								41.5		1.5			(43.9)		(153.7)			(60.0)		(98.9)					47.0		248.5					(2.6)	0	(13.7)	11.1	0	0	1.5	(140.0)	(110.0)	248.5
Cash flow from financing activities
Repayments of Short-term Debt, Maturing in More than Three Months	(106.5)		(1.5)								(106.5)		(1.5)			0		0			0		0					0		0
Net increase/(decrease) in debt with original maturities of 90 days or less	131.1		120.9								65.0		0			4.5		10.2			61.6		110.7					0		0
Proceeds From Intercompany Notes, Financing Activities	0		0								0		0			65.0		5.0			0		0					(65.0)		(5.0)
Payments for Intercompany Notes, Financing Activities	0		0								0		0			(111.6)		(1.5)			0		0					111.6		1.5
Payments for Repurchase of Common Stock	0		135.9										135.9					0					0							0
Proceeds from issuance of common stock	6.6		1.2								6.6		1.2			0		0			0		0					0		0
Excess tax benefits from share-based payments	2.5		0.4								2.5		0.4			0		0			0		0					0		0
Payments of Ordinary Dividends, Common Stock	(24.8)										(24.8)					0					0							0
Intercompany receivable/(payable)	0		0								33.6		137.0			60.0		105.0			0		0					(93.6)		(242.0)
Proceeds From Intercompany Equity Contributions, Financing Activities			0										0					0					3.0							(3.0)
Payment of Intercompany Dividend	0		0								0		0			0		0			(20.5)		(7.6)					20.5		7.6
Net Cash Provided by (Used in) Financing Activities	8.9		(14.9)								(23.6)		1.2			17.9		118.7			41.1		106.1					(26.5)		(240.9)					(14.9)	24.3	(40.3)	1.1	0	0	(23.1)	159.0	105.0	(240.9)
Effect of exchange rate changes on cash	3.5		(4.6)								0		0			0		0			3.5		(4.6)					0		0
Net increase/(decrease) in cash and cash equivalents	68.6		5.7								(4.0)		6.5			1.4		10.2			71.2		(11.0)					0		0
Cash and cash equivalents, beginning of period	718.5		471.2								4.0		0			9.2		4.3			705.3		466.9					0		0
Cash and cash equivalents, end of period	$ 787.1		$ 476.9								$ 0		$ 6.5			$ 10.6		$ 14.5			$ 776.5		$ 455.9					$ 0		$ 0

[1] Trade receivables, net for the Non-Guarantors includes $368.8 at December 31, 2012 of U.S. trade receivables sold from the Guarantors to Energizer Receivables Funding Corp ("ERF"), a wholly-owned, special purpose subsidiary, which is a non-guarantor of the Notes. These receivables are used by ERF to securitize the borrowings under the Company's receivable securitization facility. The trade receivables are short-term in nature (on average less than 90 days). As payment of the receivable obligation is received from the customer, ERF remits the cash to the Guarantors in payment for the purchase of the receivables. Cost and expenses paid by ERF related to the receivable securitization facility are re-billed to the Guarantors by way of intercompany services fees.

[2] Trade receivables, net for the Non-Guarantors includes $369.1 at September 30, 2012 of U.S. trade receivables sold from the Guarantors to Energizer Receivables Funding Corp ("ERF"), a wholly-owned, special purpose subsidiary, which is a non-guarantor of the Notes. These receivables are used by ERF to securitize the borrowings under the Company's receivable securitization facility. The trade receivables are short-term in nature (on average less than 90 days). As payment of the receivable obligation is received from the customer, ERF remits the cash to the Guarantors in payment for the purchase of the receivables. Cost and expenses paid by ERF related to the receivable securitization facility are re-billed to the Guarantors by way of intercompany services fees.

[3] Intercompany activity includes notes that bear interest due from the Guarantors to the Parent Company. Interest rates on these notes approximate the interest rates paid by the Parent on third party debt. Additionally, other intercompany activities include product purchases between Guarantors and Non-Guarantors, charges for services provided by the parent and various subsidiaries to other affiliates within the consolidated entity and other intercompany activities in the normal course of business.