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Adjusted Cash Flow and Free Cash Flow - Free Cash Flow (Details) - GBP (£) £ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Adjusted Cash Flow and Free Cash Flow |  |  |
Net cash from operating activities | £ 600 | £ 563 | £ 548
Purchase of property, plant, equipment and intangible fixed assets | (190) | (160) |
Capital element of lease payments and initial direct costs incurred | (104) | (88) | (83)
Proceeds from sale of property, plant, equipment and software | 5 | 7 | 6
Cash impact of one-off and adjusting items | 59 | 27 | 7
Dividends received from associates | 4 | 4 | 12
Free Cash Flow | £ 374 | £ 353 | £ 337

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- Definition The cash inflow representing dividends received from associates, classified as investing activities. [Refer: Associates [member]; Dividends received] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 16 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_16&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The cash inflow from sales of property, plant and equipment, classified as investing activities. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 16 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_16_b&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition Represents the cash impact of one-off and adjusting items. + References No definition available. + Details
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- Definition The cash outflow for the purchase of property, plant and equipment, intangible assets. + References No definition available. + Details
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