Other financial assets (Tables)

12 Months Ended

Dec. 31, 2017

Text block1 [abstract]

Summary of Other Financial Assets

	2017 $m		2016 $m
Equity securities available-for-sale
Quoted equity shares		10		14
Unquoted equity shares		117		142
		127		156
Loans and receivables
Trade deposits and loans		43		43
Restricted funds		32		31
Bank accounts pledged as security		42		38
		117		112
Total other financial assets		244		268
Analysed as:
Current		16		20
Non-current		228		248
		244		268

Schedule of Movement in Provision for Impairment of Other Financial Assets

The movement in the provision for impairment of other financial assets during the year is as follows:

	2017 $m			2016 $m
At 1 January		(22	)		(28	)
Disposals		4			6
At 31 December		(18	)		(22	)