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Segments - Narrative (Details)	Dec. 31, 2024 segment
Segment Reporting [Abstract]
Number of product segments	2

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- Definition

Number Of Product Segments

+ References

No definition available.

+ Details

Name:	enr_NumberOfProductSegments
Namespace Prefix:	enr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

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- References

No definition available.

+ Details

Name:	us-gaap_SegmentReportingAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration