v3.25.4
Disposals and business closures - Schedule of Disposals Including Business Closures (Detail) - GBP (£)
£ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of disposal of subsidiaries [line items]      
Intangible assets, including goodwill £ (3,009) £ (3,026) £ (3,091)
Property, plant and equipment (210) (216)  
Inventories (66) (74)  
Trade and other receivables (1,082) (1,030)  
Current tax receivable (47) (32)  
Cash and cash equivalents (excluding overdrafts) (333) (543)  
Trade and other liabilities 1,043 1,054  
Net assets disposed 3,663 4,053  
Disposal of subsidiaries and associates [member]      
Disclosure of disposal of subsidiaries [line items]      
Intangible assets, including goodwill 0 0 (53)
Property, plant and equipment 0 0 (5)
Intangible assets – product development 0 0 (15)
Inventories 0 0 (1)
Trade and other receivables (1) 0 (65)
Deferred tax 0 0 8
Current tax receivable 0 0 (2)
Cash and cash equivalents (excluding overdrafts) 0 0 (12)
Trade and other liabilities 0 0 31
Net assets disposed (1) 0 (114)
Cumulative currency translation adjustment 0 0 122
Proceeds – current year disposals 9 0 1
Proceeds – prior year disposals 1 0 0
Deferred proceeds 2 0 12
Cash and cash equivalents disposed 0 0 (12)
Costs and other disposal liabilities paid (2) (7) (27)
Costs of disposals (2) (5) (30)
Net cash (outflow)/inflow 8 (7) (38)
Gain/(loss) on disposal £ 8 £ (5) £ (9)