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Finance and investment income, finance costs and revaluation and retranslation of financial instruments (Detail) - GBP (£) £ in Millions | 6 Months Ended
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Jun. 30, 2023 | Jun. 30, 2022
Finance and investment income, finance costs and revaluation and retranslation of financial instruments [Abstract] |  |
Income from equity investments | £ 3.4 | £ 20.1
Interest income | 99.0 | 35.4
Finance income | 102.4 | 55.5
Interest payable and similar charges1 | 180.2 | 98.9
Interest expense related to lease liabilities | 50.5 | 46.0
Finance costs | 230.7 | 144.9
Movements in fair value of treasury instruments | 4.4 | 1.9
Revaluation of investments held at fair value through profit or loss | (24.2) | 9.0
Revaluation of put options over non-controlling interests | 7.1 | 19.6
Revaluation of payments due to vendors (earnout agreements) | 25.7 | (1.1)
Retranslation of financial instruments | 12.5 | 3.7
Revaluation and retranslation of financial instruments | £ 25.5 | £ 33.1

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- Definition The amount of costs associated with financing activities of the entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 82 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_82_b&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of income associated with interest and other financing activities of the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 85 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_85&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of interest expense on borrowings. [Refer: Interest expense; Borrowings] + 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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- Definition The amount of interest expense on lease liabilities. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2022-03-24 -Paragraph 53 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&anchor=para_53_b&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of interest income on debt instruments held. [Refer: Interest income; Debt instruments held] + 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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- Definition The amount of investment income, such as interest and dividends. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 26 -IssueDate 2022-03-24 -Paragraph 35 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=26&code=ifrs-tx-2022-en-r&anchor=para_35_b_iii&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 85 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_85&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition Finance and investment income, finance costs and revaluation and retranslation of financial instruments + References No definition available. + Details
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- Definition Gains losses in fair value of treasury instruments. + References No definition available. + Details
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- Definition Gains (losses) on financial instruments. + References No definition available. + Details
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- Definition Revaluation and retranslation of financial instruments. + References No definition available. + Details
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- Definition Revaluation of earnout payments due to vendors. + References No definition available. + Details
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- Definition Revaluation of put options over noncontrolling interest. + References No definition available. + Details
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