Cover Page - USD ($)	12 Months Ended
	Sep. 30, 2022	Nov. 11, 2022	Mar. 31, 2022
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Sep. 30, 2022
Document Transition Report	false
Entity File Number	001-36837
Entity Registrant Name	ENERGIZER HOLDINGS, INC.
Entity Central Index Key	0001632790
Current Fiscal Year End Date	--09-30
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Incorporation, State or Country Code	MO
Entity Tax Identification Number	36-4802442
Entity Address, Address Line One	533 Maryville University Drive
Entity Address, City or Town	St. Louis,
Entity Address, State or Province	MO
Entity Address, Postal Zip Code	63141
City Area Code	(314)
Local Phone Number	985-2000
Title of 12(b) Security	Common Stock, par value $.01 per share
Trading Symbol	ENR
Security Exchange Name	NYSE
Entity Well Known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 2,200,000,000
Entity Common Stock, Shares Outstanding		71,292,040
Documents Incorporated by Reference	Portions of Energizer Holdings, Inc. Notice of Annual Meeting and Proxy Statement (“Proxy Statement”) for our Annual Meeting of Shareholders which will be held January 30, 2023, have been incorporated into Part III of this Annual Report on Form 10-K. The Proxy Statement will be filed within 120 days of the end of the fiscal year ended September 30, 2022.