The average rate of a hedging instrument. [Refer: Hedging instruments [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2022-03-24
-Paragraph 23B
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_23B_b&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_AverageRateOfHedgingInstrument
Namespace Prefix:	ifrs-full_
Data Type:	dtr-types:percentItemType
Balance Type:	na
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

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

- Definition

The gains (losses) on hedging instruments in fair value hedges. [Refer: Fair value hedges [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2023-01-01
-Name IFRS
-Number 7
-IssueDate 2022-03-24
-Paragraph 24
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_24_a_i&doctype=Standard&book=b
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_GainsLossesOnHedgingInstrument
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

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

- Definition

A component of equity representing the accumulated gains and losses on hedging instruments that hedge investments in equity instruments that the entity has designated at fair value through other comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 78
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_78_e&doctype=Standard
-URIDate 2022-03-24

+ Details

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

- Details

Name:	ifrs-full_TypesOfHedgesAxis=ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_TypesOfHedgesAxis=pso_FxDerivativesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	ifrs-full_TypesOfHedgesAxis=ifrs-full_FairValueHedgesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_TypesOfHedgesAxis=pso_DesignatedInHedgingRelationshipMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_TypesOfHedgesAxis=ifrs-full_InterestRateSwapContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Derivative Financial Instruments and Hedge Accounting - Additional Information (Detail) € in Millions, £ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022 GBP (£)	Dec. 31, 2022 EUR (€)	Dec. 31, 2022 USD ($)	Jan. 01, 2022 GBP (£)	Dec. 31, 2021 GBP (£)
Disclosure of detailed information about financial instruments [line items]
Reserve Of Gains And Losses On Hedging Instruments	£ 1			£ 1
Gross notional amounts	1,448	€ 300			£ 1,146
Hedges of net investment in foreign operations [member]
Disclosure of detailed information about financial instruments [line items]
Net movement on hedging instrument in fair value hedges	£ 2
FX Derivatives [Member]
Disclosure of detailed information about financial instruments [line items]
Average rate of hedging instrument	1.24%	1.24%	1.24%
Gross notional amounts \| $			$ 378
Euro 2025 senior notes [member] \| Fair value hedges [member]
Disclosure of detailed information about financial instruments [line items]
Gross notional amounts \| €		€ 200
Euro 2025 senior notes [member] \| Designated in hedging relationship [member]
Disclosure of detailed information about financial instruments [line items]
Average rate of hedging instrument	3.51%	3.51%	3.51%
Gross notional amounts	£ 87	€ 100
Euro 2025 senior notes [member] \| Interest rate swap contract [member]
Disclosure of detailed information about financial instruments [line items]
Gross notional amounts	£ 160