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Other financial assets (including non-quasi equity loans to equity accounted units) (Tables)

12 Months Ended

Dec. 31, 2018

Disclosure Of Other Financial Assets [Abstract]

Summary of other financial assets including non-quasi equity loans to equity accounted units

	Non-current			Current			Total			Non-current			Current			Total
		2018			2018			2018			2017			2017			2017
	US$m			US$m			US$m			US$m			US$m			US$m
Derivative financial instruments		468			88			556			238			29			267
Equity shares and quoted funds		53			77			130			45			91			136
Other investments, including loans ^(a)		255			2,527			2,782			188			964			1,152
Loans to equity accounted units		38			-			38			39			-			39
Total		814			2,692			3,506			510			1,084			1,594

(a)	Current “Other investments, including loans” comprise US$2,522 million (2017: US$958 million) of highly liquid financial assets held in managed investment funds classified as held for trading.