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Group income statement (Parenthetical) - USD ($) shares in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Earnings per share [line items]
Borrowing costs capitalised	$ 175	$ 166
PLC And Limited
Earnings per share [line items]
Weighted average number of ordinary shares outstanding (in shares)	1,617.3	1,635.6
Rio Tinto Plc
Earnings per share [line items]
Weighted average number of ordinary shares outstanding (in shares)	1,246.5	1,265.1
Rio Tinto Limited
Earnings per share [line items]
Weighted average number of ordinary shares outstanding (in shares)	370.8	370.5

X

- Definition

The amount of interest and other costs that an entity incurs in connection with the borrowing of funds that are directly attributable to the acquisition, construction or production of a qualifying asset and which form part of the cost of that asset.

+ References

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The number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during the period multiplied by a time-weighting factor.

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