Dividends (Tables)

12 Months Ended

Dec. 31, 2019

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Summary of Dividends Paid and Proposed

	2019 cents per share		2018 cents per share		2017 cents per share		2019 $m		2018 $m		2017 $m
Paid during the year:
Final (declared for previous year)		78.1		71.0		64.0		139		130		127
Interim		39.9		36.3		33.0		72		69		62
Special (note 29)		262.1		—		202.5		510		—		404
		380.1		107.3		299.5		721		199		593
Proposed (not recognised as a liability at 31 December):
Final		85.9		78.1		71.0		156		141		135