Issue price per share.

No definition available.

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Namespace Prefix:	hln_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of preference shares issued.

+ References

No definition available.

+ Details

Name:	hln_NumberOfPreferenceSharesIssued
Namespace Prefix:	hln_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of dilutive potential ordinary shares that relate to the assumed exercise of the entity's share options.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 33
-IssueDate 2022-03-24
-Paragraph 70
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=33&code=ifrs-tx-2022-en-r&anchor=para_70_b&doctype=Standard
-URIDate 2022-03-24

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_EarningsPerShareLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during the period multiplied by a time-weighting factor.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 33
-IssueDate 2022-03-24
-Paragraph 70
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=33&code=ifrs-tx-2022-en-r&anchor=para_70_b&doctype=Standard
-URIDate 2022-03-24

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	hln_EarningsPerShareAxis=hln_NonVotingPreferenceSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

EARNINGS PER SHARE - Narratives (Details) - £ / shares	1 Months Ended	6 Months Ended
EARNINGS PER SHARE - Narratives (Details) - £ / shares	Jul. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Earnings per share [line items]
Basic weighted average number of shares		9,234,000,000	9,234,573,831
Dilutive shares		30,000,000
Non-voting preference shares
Earnings per share [line items]
Number of preference shares issued	25,000,000
Issue price per share	£ 1.00