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Earnings per share (Details) - GBP (£) £ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Earnings per share
Anti-dilutive share options	1,290,294	0
LTIP
Earnings per share
Consideration for issuance of share options	£ 0

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- Definition

Amount of consideration receivable upon issuance of share options.

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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