v3.25.4

Earnings per share - Schedule of Earnings Per Share (Details) - GBP (£) £ / shares in Units, £ in Millions, shares in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024		Dec. 31, 2023
Disclosure of earnings per share [Abstract]
Profit attributable to ordinary shareholders – basic and diluted	£ 4,196	£ 3,923	[1]	£ 4,933	[1]
Weighted-average number of ordinary shares in issue – basic (in shares)	59,790	62,413		64,953
Adjustment for share options and awards (in shares)	723	661		807
Weighted-average number of ordinary shares in issue – diluted (in shares)	60,513	63,074		65,760
Basic earnings per share (in GBP per share)	£ 0.070	£ 0.063	[1]	£ 0.076	[1]
Diluted earnings per share (in GBP per share)	£ 0.069	£ 0.062	[1]	£ 0.075	[1]
[1] 1Comparative periods have been represented for presentational changes. See note 1.

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- Definition

The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

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The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator).

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The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator), divided by the weighted average number of ordinary shares outstanding during the period (the denominator), both adjusted for the effects of all dilutive potential ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

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