XML 34 R79.htm IDEA: XBRL DOCUMENT v3.19.2
Other intangible assets - Movements of Other Intangible Assets (Detail) - GBP (£)
£ in Millions
Jun. 30, 2019
Dec. 31, 2018
Jun. 30, 2018
Disclosure of detailed information about intangible assets [line items]      
Other intangibles £ 1,786.2 £ 1,842.0 £ 1,936.7
Brands with an indefinite useful life [member]      
Disclosure of detailed information about intangible assets [line items]      
Other intangibles 1,141.2 1,132.8 1,086.7
Acquired intangibles [member]      
Disclosure of detailed information about intangible assets [line items]      
Other intangibles 530.4 594.8 747.5
Other [member]      
Disclosure of detailed information about intangible assets [line items]      
Other intangibles £ 114.6 £ 114.4 £ 102.5