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Document and Entity Information Document - shares	3 Months Ended
	Dec. 31, 2018	Feb. 01, 2019
Entity [Abstract]
Entity Registrant Name	ENERGIZER HOLDINGS, INC.
Entity Central Index Key	0001632790
Current Fiscal Year End Date	--09-30
Entity Filer Category	Large Accelerated Filer
Trading Symbol	ENR
Document Type	10-Q
Document Period End Date	Dec. 31, 2018
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Amendment Flag	false
Common stock outstanding, shares		69,874,672

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