Finance costs (Tables)

12 Months Ended

Dec. 31, 2017

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Summary of Financial Income and Expenses

	2017 $m		2016 $m			2015 $m
Financial income
Interest income on deposits		1		3			2
Interest income on loans and receivables		3		3			3
		4		6			5
Financial expenses
Interest expense on borrowings		69		74			74
Finance charge payable under finance leases		20		20			20
Capitalised interest		—		(1	)		(2	)
		89		93			92