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Authorised and issued share capital (Tables)

12 Months Ended

Dec. 31, 2023

Disclosure of classes of share capital [abstract]

Summary of Authorised and Issued Share Capital

			Equity ordinary shares						Nominal value £m
Authorised
At 1 January 2021			1,750,000,000						175.0
At 31 December 2021			1,750,000,000						175.0
At 31 December 2022			1,750,000,000						175.0
At 31 December 2023			1,750,000,000						175.0
Issued and fully paid
At 1 January 2021			1,296,080,242						129.6
Exercise of share options			534,800						—
Share cancellations			(72,155,492)						(7.2)
At 31 December 2021			1,224,459,550						122.4
Exercise of share options			125,700						—
Share cancellations			(83,157,954)						(8.3)
At 31 December 2022			1,141,427,296						114.1
Exercise of share options			85,900						—
Share cancellations			—						—
At 31 December 2023			1,141,513,196						114.1

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