XML 249 R153.htm IDEA: XBRL DOCUMENT
v3.25.1

Financial risk management objectives and policies - Additional Information (Details) € in Millions, £ in Millions, $ in Millions | 1 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2024 GBP (£) | Dec. 31, 2024 USD ($) | Dec. 31, 2024 EUR (€) | Nov. 30, 2024 GBP (£) | Nov. 30, 2024 USD ($) | Mar. 31, 2024 GBP (£) | Mar. 31, 2024 EUR (€) | Dec. 31, 2024 GBP (£) | Dec. 31, 2023 GBP (£) | Dec. 31, 2024 USD ($) | Dec. 31, 2024 EUR (€) | Sep. 30, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2023 EUR (€) | Dec. 31, 2022 GBP (£)
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | £ | £ 2,638 |  |  |  |  |  |  | £ 2,638 | £ 2,218 |  |  |  |  |  | £ 2,492
Borrowings | £ | £ 4,328 |  |  |  |  |  |  | £ 4,328 | £ 4,721 |  |  |  |  |  |
Percentage of trade receivables |  |  |  |  |  |  |  | 6.50% | 6.30% |  |  |  |  |  |
Weighted average growth rate | 21.50% |  |  |  |  |  |  | 21.50% | 14.30% | 21.50% | 21.50% |  | 14.30% | 14.30% |
Risk adjusted discount rate | 4.90% |  |  |  |  |  |  | 4.90% | 6.30% | 4.90% | 4.90% |  | 6.30% | 6.30% |
US Revolving Credit Facilities March 2026 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings term |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |
Notional amount of hedged items | £ 2,500 |  |  |  |  |  |  | £ 2,500 |  | $ 2,500 |  |  |  |  |
Number of extensions | 2 |  |  |  |  |  |  | 2 |  | 2 | 2 |  |  |  |
Extension option term |  |  |  |  |  |  |  | 2 years |  |  |  |  |  |  |
US Revolving Credit Facilities March 2026 | Refinanced Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of hedged items | £ |  |  |  |  |  |  |  |  | £ 2,500 |  |  |  |  |  |
US Revolving Credit Facilities March 2026, Extension 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Extension option term |  |  |  |  |  |  |  | 1 year |  |  |  |  |  |  |
Euro Bonds Due September 2029 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of hedged items | € |  |  |  |  |  |  | € 600 |  |  |  | € 351 |  |  |  |
Borrowings repurchased | € |  |  |  |  |  |  |  |  |  |  | 249 |  |  |  |
Eurobonds Due September 2033 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of hedged items | € |  |  |  |  |  |  | 650 |  |  |  | 500 |  |  |  |
Borrowings repurchased | € |  |  |  |  |  |  |  |  |  |  | 150 |  |  |  |
Eurobonds Due May 2028 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of hedged items | € |  |  |  |  |  |  |  |  |  |  | 550 |  |  |  |
Borrowings repurchased | € |  |  |  |  |  |  |  |  |  |  | € 200 |  |  |  |
USD Bonds Due September 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of hedged items | $ |  |  |  |  |  |  |  |  |  |  |  | $ 750 |  |  |
Cross Currency Swaps Due May 2028 | Net investment hedges of foreign currency risk |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of hedging instruments | $ |  |  |  |  |  |  |  |  |  | 595 |  |  |  |  |
Cross Currency Swaps Due May 2028 | Cash Flow Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of hedging instruments | € |  |  |  |  |  |  |  |  |  |  | 550 |  |  |  |
Cross Currency Swaps Due September 2029 | Net investment hedges of foreign currency risk |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of hedging instruments | $ |  |  |  |  |  |  |  |  |  | 377 |  |  |  |  |
Cross Currency Swaps Due September 2029 | Cash Flow Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of hedging instruments | € |  |  |  |  |  |  |  |  |  |  | 350 |  |  |  |
93 USD Million Bond | Net investment hedges of foreign currency risk |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of hedging instruments | $ |  |  |  |  |  |  |  |  |  | 93 |  |  |  |  |
220 USD Million Bond | Net investment hedges of foreign currency risk |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of hedging instruments | $ |  |  |  |  |  |  |  |  |  | 220 |  |  |  |  |
Cross Currency Interest Rate Swaps Due September 2033 | Fair value hedges of foreign currency and interest rate risk |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of hedging instruments | € |  |  |  |  |  |  |  |  |  |  | 500 |  |  |  |
Cross Currency Swaps Due March 2025 | Cash Flow Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of hedging instruments | € |  |  |  |  |  |  |  |  |  |  | 500 |  |  |  |
Interest Rate Swaps Due March 2025 | Cash Flow Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of hedging instruments | £ | 428 |  |  |  |  |  |  | 428 |  |  |  |  |  |  |
Bottom of Range | Earnout agreements for acquisitions completed in the current year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Potential undiscounted amount of future payments | £ | £ 0 |  |  |  |  |  |  | £ 0 | 0 |  |  |  |  |  |
Bottom of Range | All earn-out agreements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Potential undiscounted amount of future payments | £ | 0 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |
Top of Range | Earnout agreements for acquisitions completed in the current year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Potential undiscounted amount of future payments | £ | 51 |  |  |  |  |  |  | 51 | 326 |  |  |  |  |  |
Top of Range | All earn-out agreements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Potential undiscounted amount of future payments | £ | £ 594 |  |  |  |  |  |  | £ 594 | 753 |  |  |  |  |  |
Currency risk | Cash Flow Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Hedge ratio | 1 |  |  |  |  |  |  | 1 |  | 1 | 1 |  |  |  |
Interest rate risk |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage increase in market interest rate |  |  |  |  |  |  |  | 1.00% |  |  |  |  |  |  |
Potential amount of change due to an increase or decrease in risk | £ | £ (13) |  |  |  |  |  |  | £ (13) | 19 |  |  |  |  |  |
Percentage decrease in market interest rate |  |  |  |  |  |  |  | 1.00% |  |  |  |  |  |  |
US dollar borrowings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings | $ |  |  |  |  |  |  |  |  |  | $ 1,284 |  |  | $ 1,874 |  |
US dollar borrowings | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of debt |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |
US dollar borrowings | Weighted average |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings | $ |  |  |  |  |  |  |  |  |  | $ 1,683 |  |  | $ 2,511 |  |
Sterling Borrowings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings | £ | 1,501 |  |  |  |  |  |  | £ 1,501 | 1,094 |  |  |  |  |  |
Sterling Borrowings | Weighted average |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings | £ | £ 1,900 |  |  |  |  |  |  | £ 1,900 | £ 1,173 |  |  |  |  |  |
Sterling Borrowings | Currency risk |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage weakening of sterling against major currencies | 10.00% |  |  |  |  |  |  | 10.00% |  | 10.00% | 10.00% |  |  |  |
Percentage increase of sterling against major currencies | 10.00% |  |  |  |  |  |  | 10.00% |  | 10.00% | 10.00% |  |  |  |
Euro Borrowings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings | € |  |  |  |  |  |  |  |  |  |  | € 2,101 |  |  | € 2,100 |
Euro Borrowings | Weighted average |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings | € |  |  |  |  |  |  |  |  |  |  | € 2,100 |  |  | € 2,321 |
Contracts Due In September 2029 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Receipts |  |  | € 250 | £ 300 |  |  | 600 |  |  |  |  |  |  |  |
Payments | £ 214 |  |  |  | $ 377 | £ 513 |  |  |  |  |  |  |  |  |
Contracts Due In September 2033 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Receipts | € |  |  | 150 |  |  |  | € 650 |  |  |  |  |  |  |  |
Payments | £ | 128 |  |  |  |  | 556 |  |  |  |  |  |  |  |  |
Interest Rate Swap Contracts Due In March 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Receipts | £ | £ 128 |  |  |  |  | £ 556 |  |  |  |  |  |  |  |  |
Contracts Due In May 2028 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Receipts | € |  |  | € 200 |  |  |  |  |  |  |  |  |  |  |  |
Payments | $ |  | $ 216 |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign Exchange Contracts | Cash Flow Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of hedging instruments | £ | 63 |  |  |  |  |  |  | 63 |  |  |  |  |  |  |

X
- 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 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_Borrowings
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2024-01-01 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_45&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph B13 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_B13_a&doctype=Appendix&subtype=B -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_i&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_CashAndCashEquivalents
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition The nominal amount of a hedging instrument. [Refer: Hedging instruments [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 23B -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_23B_a&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 24A -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_24A_d&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_NominalAmountOfHedgingInstrument
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- 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 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_NotionalAmount
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of risk exposure associated with financial instruments with a shared characteristic that identifies a concentration of risks. [Refer: Classes of financial instruments [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph B8 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_B8_c&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
Name: | ifrs-full_RiskExposureAssociatedWithInstrumentsSharingCharacteristic
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Borrowings, Extension Option Term + References No definition available. + Details
Name: | wpp_BorrowingsExtensionOptionTerm
Namespace Prefix: | wpp_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Borrowings, Number of Extensions + References No definition available. + Details
Name: | wpp_BorrowingsNumberOfExtensions
Namespace Prefix: | wpp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Borrowings Repurchased + References No definition available. + Details
Name: | wpp_BorrowingsRepurchased
Namespace Prefix: | wpp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Borrowings, Term + References No definition available. + Details
Name: | wpp_BorrowingsTerm
Namespace Prefix: | wpp_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Estimated financial effect, contingent consideration in business combination. + References No definition available. + Details
Name: | wpp_EstimatedFinancialEffectContingentConsiderationInBusinessCombination
Namespace Prefix: | wpp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Hedge Ratio + References No definition available. + Details
Name: | wpp_HedgeRatio
Namespace Prefix: | wpp_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage decrease in market interest rate. + References No definition available. + Details
Name: | wpp_PercentageDecreaseInMarketInterestRate
Namespace Prefix: | wpp_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage increase in market interest rate. + References No definition available. + Details
Name: | wpp_PercentageIncreaseInMarketInterestRate
Namespace Prefix: | wpp_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage increase of sterling against major currencies. + References No definition available. + Details
Name: | wpp_PercentageIncreaseOfSterlingAgainstMajorCurrencies
Namespace Prefix: | wpp_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of debt. + References No definition available. + Details
Name: | wpp_PercentageOfDebt
Namespace Prefix: | wpp_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage weakening of sterling against major currencies. + References No definition available. + Details
Name: | wpp_PercentageWeakeningOfSterlingAgainstMajorCurrencies
Namespace Prefix: | wpp_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Proportion Of Trade Receivables + References No definition available. + Details
Name: | wpp_ProportionOfTradeReceivables
Namespace Prefix: | wpp_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Risk adjusted discount rate. + References No definition available. + Details
Name: | wpp_RiskAdjustedDiscountRate
Namespace Prefix: | wpp_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted average growth rate. + References No definition available. + Details
Name: | wpp_WeightedAverageGrowthRate
Namespace Prefix: | wpp_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Working capital Payment amount + References No definition available. + Details
Name: | wpp_WorkingCapitalPaymentAmount
Namespace Prefix: | wpp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Working capital receivable amount + References No definition available. + Details
Name: | wpp_WorkingCapitalReceivableAmount
Namespace Prefix: | wpp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=wpp_UsRevolvingCreditFacilitiesMarch2026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=wpp_RefinancedDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=wpp_USRevolvingCreditFacilitiesMarch2026Extension1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=wpp_EuroBondsDueSeptember2029Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=wpp_EurobondsDueSeptember2033Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=wpp_EurobondsDueMay2028Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=wpp_USDBondsDueSeptember2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=wpp_CrossCurrencySwapsDueMay2028Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_HedgedItemsAxis=ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfHedgesAxis=ifrs-full_CashFlowHedgesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=wpp_CrossCurrencySwapsDueSeptember2029Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=wpp_A93USDMillionBondMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=wpp_A220USDMillionBondMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=wpp_CrossCurrencyInterestRateSwapsDueSeptember2033Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=wpp_CrossCurrencySwapsDueMarch2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=wpp_InterestRateSwapsDueMarch2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ItemsOfContingentLiabilitiesAxis=wpp_EarnoutAgreementsInThePeriodMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ItemsOfContingentLiabilitiesAxis=wpp_ContingentConsiderationPayableToVendorsEarnoutAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=ifrs-full_CurrencyRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=ifrs-full_InterestRateRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=wpp_UsDollarBorrowingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfInterestRatesAxis=ifrs-full_FixedInterestRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_WeightedAverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=wpp_SterlingBorrowingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=wpp_EuroBorrowingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=wpp_ContractsDueInSeptember2029Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=wpp_ContractsDueInSeptember2033Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=wpp_InterestRateSwapContractsDueInMarch2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=wpp_ContractsDueInMay2028Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=wpp_ForeignExchangeContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |