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Dividends (Tables) | 12 Months Ended
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Dec. 31, 2019
Disclosure Of Dividends [Abstract] |
Summary of dividends paid |
| 2019 US$m |  | 2018 US$m |  | 2017 US$m |
Rio Tinto plc previous year final dividend paid | 2,245 |  | 2,446 |  | 1,725 |
Rio Tinto plc previous year special dividend paid | 3,032 |  | — |  | — |
Rio Tinto plc interim dividend paid | 1,930 |  | 1,666 |  | 1,530 |
Rio Tinto plc interim special dividend paid | 780 |  | — |  | — |
Rio Tinto Limited previous year final dividend paid | 666 |  | 731 |  | 523 |
Rio Tinto Limited previous year special dividend paid | 900 |  | — |  | — |
Rio Tinto Limited interim dividend paid | 556 |  | 513 |  | 472 |
Rio Tinto Limited interim special dividend paid | 225 |  | — |  | — |
Dividends paid during the year | 10,334 |  | 5,356 |  | 4,250 |
Dividends per share: paid during the year | 635.0 | c | 307.0 | c | 235.0 | c
Final dividends per share: proposed in the announcement of the results for the year | 231.0 | c | 180.0 | c | 180.0 | c
Special dividends per share: proposed in the announcement of the results for the year | — |  | 243.0 | c | — |
Summary of dividends per share |
| Dividends per share 2019 |  | Dividends per share 2018 |  | Dividends per share 2017 |
Rio Tinto plc previous year final (pence) | 135.96 | p | 129.43 | p | 100.56 | p
Rio Tinto plc previous year special (pence) | 183.55 | p | — |  | — |
Rio Tinto plc interim (pence) | 123.32 | p | 96.82 | p | 83.13 | p
Rio Tinto plc interim special (pence) | 49.82 | p | — |  | — |
Rio Tinto Limited previous year final – fully franked at 30% (Australian cents) | 250.89 | c | 228.53 | c | 163.62 | c
Rio Tinto Limited previous year special – fully franked at 30% (Australian cents) | 338.70 | c | — |  | — |
Rio Tinto Limited interim – fully franked at 30% (Australian cents) | 219.08 | c | 170.84 | c | 137.72 | c
Rio Tinto Limited interim special – fully franked at 30% (Australian cents) | 88.50 | c | — |  | — |
Summary of number of shares dividend distributed |
| Number of shares 2019 (millions) |  | Number of shares 2018 (millions) |  | Number of shares 2017 (millions) |
Rio Tinto plc previous year final | 1,265.0 |  | 1,334.8 |  | 1,374.6 |
Rio Tinto plc previous year special | 1,265.0 |  | N/A |  | N/A |
Rio Tinto plc interim | 1,256.4 |  | 1,308.4 |  | 1,366.1 |
Rio Tinto plc interim special | 1,256.4 |  | N/A |  | N/A |
Rio Tinto Limited previous year final | 371.2 |  | 412.4 |  | 424.0 |
Rio Tinto Limited previous year special | 371.2 |  | N/A |  | N/A |
Rio Tinto Limited interim | 371.2 |  | 412.4 |  | 424.0 |
Rio Tinto Limited interim special | 371.2 |  | N/A |  | N/A |

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