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Dividends (Tables)

12 Months Ended

Dec. 31, 2018

Disclosure Of Dividends [Abstract]

Summary of dividends paid

		2018			2017			2016
	US$m			US$m			US$m
Rio Tinto plc previous year final dividend paid		2,446			1,725			1,443
Rio Tinto plc interim dividend paid		1,666			1,530			604
Rio Tinto Limited previous year final dividend paid		731			523			473
Rio Tinto Limited interim dividend paid		513			472			205
Dividends paid during the year		5,356			4,250			2,725

Dividends per share: paid during the year		307.0	c		235.0	c		152.5	c
Final dividends per share: proposed in the announcement of the results for the year	180.0c				180.0	c		125.0	c
Special dividends per share: proposed in the announcement of the results for the year	243.0c				-			-

Summary of dividends per share

	Dividends			Dividends			Dividends
	per share			per share			per share
		2018			2017			2016
Rio Tinto plc previous year final (pence)		129.43	p		100.56	p		74.21	p
Rio Tinto plc interim (pence)		96.82	p		83.13	p		33.80	p
Rio Tinto Limited previous year final – fully franked at 30% (Australian cents)		228.53	c		163.62	c		151.89	c
Rio Tinto Limited interim – fully franked at 30% (Australian cents)		170.84	c		137.72	c		59.13	c

Summary of number of shares dividend distributed

	Number			Number			Number
	of shares			of shares			of shares
		2018			2017			2016
	(millions)			(millions)			(millions)
Rio Tinto plc previous year final		1,334.8			1,374.6			1,373.9
Rio Tinto plc interim		1,308.4			1,366.1			1,374.4
Rio Tinto Limited previous year final		412.4			424.0			423.5
Rio Tinto Limited interim		412.4			424.0			424.0