XML 189 R177.htm IDEA: XBRL DOCUMENT
v3.20.4

Authorised and issued share capital - Options Granted, WPP Executive Share Option Scheme (Detail) - Ordinary shares [member] | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 shares £ / shares | Dec. 31, 2018 shares
Disclosure of range of exercise prices of outstanding share options [line items] |  |
Number of ordinary shares under option | 25,105,815 | 24,218,615
WPP Executive Share Option Scheme [member] |  |
Disclosure of range of exercise prices of outstanding share options [line items] |  |
Number of ordinary shares under option | 6,741 | 6,741
WPP Executive Share Option Scheme [member] | Exercise price group 1 [member] |  |
Disclosure of range of exercise prices of outstanding share options [line items] |  |
Number of ordinary shares under option | 3,696 |
Exercise price per share | £ / shares | £ 8.333 |
Exercise dates | 2015 - 2022 |
WPP Executive Share Option Scheme [member] | Exercise price group 2 [member] |  |
Disclosure of range of exercise prices of outstanding share options [line items] |  |
Number of ordinary shares under option | 3,045 |
Exercise price per share | £ / shares | £ 10.595 |
Exercise dates | 2016 - 2023 |

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The exercise price of outstanding share options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2019-01-01 -Paragraph 45 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2019-en-r&anchor=para_45_d&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_ExercisePriceOfOutstandingShareOptions2019
Namespace Prefix: | ifrs-full_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of share options outstanding in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2019-01-01 -Paragraph 45 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2019-en-r&anchor=para_45_d&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2019-01-01 -Paragraph 45 -Subparagraph b -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2019-en-r&anchor=para_45_b_i&doctype=Standard -URIDate 2019-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2019-01-01 -Paragraph 45 -Subparagraph b -Clause vi -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2019-en-r&anchor=para_45_b_vi&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_NumberOfOutstandingShareOptions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Exercise date range of share-based payment arrangement + References No definition available. + Details
Name: | wpp_ExerciseDateRangeOfSharebasedPaymentArrangement
Namespace Prefix: | wpp_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=ifrs-full_OrdinarySharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=wpp_WPPExecutiveShareOptionSchemeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsAxis=wpp_ExercisePriceOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsAxis=wpp_ExercisePriceTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |