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Group income statement (Parenthetical) - USD ($) shares in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Earnings per share [line items]
Borrowing costs capitalised	$ 174	$ 175
PLC And Limited
Earnings per share [line items]
Weighted average number of ordinary shares outstanding (in shares)	1,618.1	1,617.3
Rio Tinto Plc
Earnings per share [line items]
Weighted average number of ordinary shares outstanding (in shares)	1,246.9	1,246.5
Rio Tinto Limited
Earnings per share [line items]
Weighted average number of ordinary shares outstanding (in shares)	371.2	370.8

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.

+ References

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