Events since the balance sheet date (Details)	Feb. 22, 2024 GBP (£)
Major ordinary share transactions
Disclosure of non-adjusting events after reporting period [line items]
Share repurchase program, authorised amount	£ 2,000,000,000.0

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

No definition available.

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Period Type:	duration