Consolidated net cash/(debt) (Tables)

12 Months Ended

Dec. 31, 2018

Disclosure Of Consolidated Net Debt [Abstract]

Analysis of changes in consolidated net cash/(debt)

	Financing liabilities ^(b)						Other assets
	Borrowings (including finance leases) excluding			Debt-related derivatives (included in Other financial assets/			Cash/			Other		Net
	overdrafts ^(a)			liabilities)			overdrafts ^(b)			investments ^(c)		(debt)/cash
Year ended 31 December 2018	US$m			US$m			US$m			US$m		US$m
Analysis of changes in consolidated net cash/(debt)
Opening balance		(15,173	)		(177	)		10,547			958		(3,845	)
Foreign exchange adjustment		126			(64	)		151			-		213
Cash movements excluding exchange movements		2,246			51			191			1,557		4,045
Other non-cash movements		50			(98	)		(117	)		7		(158	)
Closing balance		(12,751	)		(288	)		10,772			2,522		255

	Financing liabilities ^(b)						Other assets
	Borrowings (including finance leases) excluding			Debt-related derivatives (included in Other financial assets/			Cash/			Other		Net
	overdrafts ^(a)			liabilities)			overdrafts ^(b)			investments ^(c)		debt
Year ended 31 December 2017	US$m			US$m			US$m			US$m		US$m
Analysis of changes in consolidated net debt
Opening balance		(17,618	)		(408	)		8,189			250		(9,587	)
Foreign exchange adjustment		(303	)		245			(12	)		-		(70	)
Cash movements excluding exchange movements		2,777			7			2,370			705		5,859
Other non-cash movements		(29	)		(21	)		-			3		(47	)
Closing balance		(15,173	)		(177	)		10,547			958		(3,845	)

(a)

Borrowings (including finance leases) at 31 December 2018 differ from total borrowings on the balance sheet as they exclude overdrafts of US$1 million (31 December 2017: US$3 million), other current financial liabilities of US$761 million (31 December 2017: US$352 million) and other non-current financial liabilities US$407 million (31 December 2017: US$524 million).

(b)

Closing cash/overdrafts at 31 December 2018 differ from cash and cash equivalents on the balance sheet as they include overdrafts of US$1 million which have been classified as a financial liability (31 December 2017: US$3 million). Other non-cash movements represents the reclassification of cash and cash equivalents in disposal groups to assets held for sale.

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