Earnings per share (Tables)

12 Months Ended

Dec. 31, 2017

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Summary of Earnings Per Share

All figures in £ millions	Notes		2017			2016			2015
Earnings/(loss) for the year from continuing operations				408			(2,335	)		(352	)
Non-controlling interest				(2	)		(2	)		—
Earnings/(loss) from continuing operations				406			(2,337	)		(352	)
Profit for the year from discontinued operations		2		—			—			1,175
Earnings/(loss) attributable to equity holders of the company				406			(2,337	)		823
Weighted average number of shares (millions)				813.4			814.8			813.3
Effect of dilutive share options (millions)				0.3			—			—
Weighted average number of shares (millions) for diluted earnings				813.7			814.8			813.3
Earnings/(loss) per share from continuing and discontinued operations
Basic				49.9p			(286.8)p			101.2p
Diluted				49.9p			(286.8)p			101.2p
Earnings/(loss) per share from continuing operations
Basic				49.9p			(286.8)p			(43.3)p
Diluted				49.9p			(286.8)p			(43.3)p
Earnings per share from discontinued operations
Basic				—			—			144.5p
Diluted				—			—			144.5p