Earnings per share (Tables)

12 Months Ended

Dec. 31, 2019

Earnings per share [abstract]

Disclosure of detailed information on earnings per share

Profit attributable to the ordinary shareholders of the parent company
	2019		2018		2017
	$m		$m		$m
Profit attributable to shareholders of the parent company	7,383		13,727		10,798
Dividend payable on preference shares classified as equity	(90	)	(90	)	(90	)
Coupon payable on capital securities classified as equity	(1,324	)	(1,029	)	(1,025	)
Year ended 31 Dec	5,969		12,608		9,683

Basic and diluted earnings per share
		2019			2018			2017
		Profit	Number of shares	Per share	Profit	Number of shares	Per share	Profit	Number of shares	Per share
	Footnotes	$m	(millions)	$	$m	(millions)	$	$m	(millions)	$
Basic	1	5,969	20,158	0.30	12,608	19,896	0.63	9,683	19,972	0.48
Effect of dilutive potential ordinary shares			75			87			100
Diluted	1	5,969	20,233	0.30	12,608	19,983	0.63	9,683	20,072	0.48

1 Weighted average number of ordinary shares outstanding (basic) or assuming dilution (diluted).