v3.25.4
Net Finance Costs - Schedule of Information About Finance Income and Costs (Detail) - GBP (£)
£ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of finance income and costs [line items]      
Interest payable on financial liabilities at amortised cost and associated derivatives £ 51 £ 48 £ 34
Interest on lease liabilities (20) (22) (23)
Interest on deferred and contingent consideration (1) (2) (4)
Fair value movements on investments held at fair value (7) (11) 0
Interest on provisions for uncertain tax positions (3) (7) 0
Fair value movement on derivatives (9) (19) (20)
Net foreign exchange losses (7) (3) 0
Finance costs (98) (112) (81)
Interest receivable on financial assets at amortised cost 14 25 16
Interest on lease receivables 3 4 4
Net finance income in respect of retirement benefits 25 21 26
Fair value movements on investments held at fair value 0 0 13
Net foreign exchange gains 0 0 3
Interest on provisions for uncertain tax positions 0 5 4
Fair value movement on derivatives 6 26 10
Finance income 48 81 76
Net finance costs £ (50) £ (31) £ (5)