Represents the average effective pre-swap interest rate of borrowings.

No definition available.

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

- Definition

The amount of outstanding funds that the entity is obligated to repay.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard
-URIDate 2022-03-24

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2022-03-24
-Paragraph 7
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_7&doctype=Standard
-URIDate 2022-03-24

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of current borrowings and current portion of non-current borrowings. [Refer: Borrowings]

+ References

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

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

- Definition

The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2022-03-24

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	ifrs-full_BorrowingsByNameAxis=hln_IfrsCommercialPaperMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CurrencyAxis=currency_EUR
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

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Data Type:	na
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- Details

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Namespace Prefix:
Data Type:	na
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- Details

Name:	ifrs-full_BorrowingsByNameAxis=hln_ShortTermBankLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=hln_PreSeparationProgrammeNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=hln_PreSeparationUsdNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
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BORROWINGS - Short term borrowings (Details) £ in Millions, $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2023 GBP (£)	Dec. 31, 2022 GBP (£)	Jun. 30, 2023 USD ($)
Borrowings
Current	£ 1,097	£ 437
Borrowings	9,865	10,440
Commercial paper
Borrowings
Current	463	302
Borrowings	463	£ 302
Commercial paper \| Euro
Borrowings
Nominal value	2,000
Commercial paper \| USD
Borrowings
Nominal value	£ 10,000
Commercial paper \| Weighted Average
Borrowings
Interest rate	4.81%	3.23%	4.81%
Short-term bank loans
Borrowings
Current	£ 15	£ 18
Short-term bank loans \| Weighted Average
Borrowings
Interest rate	6.85%	6.70%	6.85%
Pre-Separation Programme Notes
Borrowings
Current		£ 0
Average effective pre-swap interest rate	3.00%	3.07%
Pre-Separation USD Notes
Borrowings
Current	£ 553		$ 700
Average effective pre-swap interest rate	3.00%	0.00%