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Leases - Summary of Movement in Right of use Assets and Lease Liabilities (Detail) - GBP (£) £ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2019 | Jan. 01, 2019
Disclosure Of Leases [Line items] |  |
Additions | £ 119.0 |
Disposals and deletions | (20.5) |
Depreciation expenses | (168.4) |
Right-of-use assets | 1,825.2 |
Additions | 144.6 |
Interest expense related to lease liabilities | 51.7 |
Disposals | (21.3) |
Repayment of lease liabilities (including interest) | (155.5) |
Lease liabilities | 2,345.7 |
Impact on Initial Application of IFRS16 [member] |  |
Disclosure Of Leases [Line items] |  |
Right-of-use assets |  | £ 1,895.1
Lease liabilities |  | 2,326.2
Land and buildings [member] |  |
Disclosure Of Leases [Line items] |  |
Additions | 109.6 |
Disposals and deletions | (20.3) |
Depreciation expenses | (158.5) |
Right-of-use assets | 1,793.3 |
Additions | 136.7 |
Interest expense related to lease liabilities | 51.1 |
Disposals | (21.0) |
Repayment of lease liabilities (including interest) | (148.4) |
Lease liabilities | 2,312.8 |
Land and buildings [member] | Impact on Initial Application of IFRS16 [member] |  |
Disclosure Of Leases [Line items] |  |
Right-of-use assets |  | 1,862.5
Lease liabilities |  | 2,294.4
Plant and machinery [member] |  |
Disclosure Of Leases [Line items] |  |
Additions | 9.4 |
Disposals and deletions | (0.2) |
Depreciation expenses | (9.9) |
Right-of-use assets | 31.9 |
Additions | 7.9 |
Interest expense related to lease liabilities | 0.6 |
Disposals | (0.3) |
Repayment of lease liabilities (including interest) | (7.1) |
Lease liabilities | £ 32.9 |
Plant and machinery [member] | Impact on Initial Application of IFRS16 [member] |  |
Disclosure Of Leases [Line items] |  |
Right-of-use assets |  | 32.6
Lease liabilities |  | £ 31.8

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- Definition The amount of additions to right-of-use assets. [Refer: Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2019-01-01 -Name IFRS -Number 16 -IssueDate 2018-01-01 -Paragraph 53 -Subparagraph h -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=16&date=2018-03-01&anchor=para_53_h&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of depreciation of right-of-use assets. [Refer: Depreciation and amortisation expense; Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2019-01-01 -Name IFRS -Number 16 -IssueDate 2018-01-01 -Paragraph 53 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=16&date=2018-03-01&anchor=para_53_a&doctype=Standard -URIDate 2018-03-16 + 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 -Note Effective 2019-01-01 -Name IFRS -Number 16 -IssueDate 2018-01-01 -Paragraph 53 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=16&date=2018-03-01&anchor=para_53_b&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2019-01-01 -Name IFRS -Number 16 -IssueDate 2018-01-01 -Paragraph 47 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=16&date=2018-03-01&anchor=para_47_b&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of assets that represent a lessee's right to use an underlying asset for the lease term. Underlying asset is an asset that is the subject of a lease, for which the right to use that asset has been provided by a lessor to a lessee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2019-01-01 -Name IFRS -Number 16 -IssueDate 2018-01-01 -Paragraph 53 -Subparagraph j -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=16&date=2018-03-01&anchor=para_53_j&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition Additions to lease liabilities. + References No definition available. + Details
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