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Leases - Lessor Leases - Nature of operating lease assets on the balance sheet (Details) - GBP (£) £ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Disclosure of quantitative information about right-of-use assets [line items] |  |
Property, plant and equipment | £ 4,230 | £ 4,418
Operating lease assets |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Property, plant and equipment | 526 | 600
Rental income from investment property | 838 | 840
Transportation | Operating lease assets |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Property, plant and equipment | 282 | 327
Cars and light commercial vehicles | Operating lease assets |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Property, plant and equipment | 21 | 28
Other | Operating lease assets |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Property, plant and equipment | 223 | 245
Investment properties | Operating lease assets |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Lease income | £ 59 | £ 60

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- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2021-01-01 -Paragraph 73 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_e&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 54 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_a&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of rental income arising from investment property recognised in profit or loss. [Refer: Investment property] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 75 -Subparagraph f -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_75_f_i&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition Represents the amount of net lease income. + References No definition available. + Details
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