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Discontinued operations and assets and liabilities of disposal groups - Operating cash flows attributable to discontinued operations (Details) - GBP (£) £ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Noncurrent assets or disposal groups classified as held for sale |  |  |
Net cash flows from investing activities | £ 6,164 |  |
Discontinued operations |  |  |
Noncurrent assets or disposal groups classified as held for sale |  |  |
Net cash flows from operating activities | 1,090 | £ 2,212 | £ (816)
Net increase in cash and cash equivalents | £ 7,254 | £ 2,212 | £ (816)

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- Definition The cash flows from (used in) the entity's investing activities, related to discontinued operations. [Refer: Discontinued operations [member]; Cash flows from (used in) investing activities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 5 -IssueDate 2022-03-24 -Paragraph 33 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=5&code=ifrs-tx-2022-en-r&anchor=para_33_c&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The cash flows from (used in) the entity's operating activities, related to discontinued operations. [Refer: Discontinued operations [member]; Cash flows from (used in) operating activities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 5 -IssueDate 2022-03-24 -Paragraph 33 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=5&code=ifrs-tx-2022-en-r&anchor=para_33_c&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The increase (decrease) in cash and cash equivalents from discontinued operations. [Refer: Cash and cash equivalents; Discontinued operations [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 5 -IssueDate 2022-03-24 -Paragraph 33 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=5&code=ifrs-tx-2022-en-r&anchor=para_33_c&doctype=Standard -URIDate 2022-03-24 + Details
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- 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
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- Details
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