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Dividends (Tables) | 12 Months Ended
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Dec. 31, 2019
Text block [abstract] |
Summary of Dividends Paid and Proposed |
|  | 2019 cents per share |  |  | 2018 cents per share |  |  | 2017 cents per share |  |  | 2019 $m |  |  | 2018 $m |  |  | 2017 $m |
Paid during the year: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Final (declared for previous year) |  |  | 78.1 |  |  |  | 71.0 |  |  |  | 64.0 |  |  |  | 139 |  |  |  | 130 |  |  |  | 127 |
Interim |  |  | 39.9 |  |  |  | 36.3 |  |  |  | 33.0 |  |  |  | 72 |  |  |  | 69 |  |  |  | 62 |
Special (note 29) |  |  | 262.1 |  |  |  | — |  |  |  | 202.5 |  |  |  | 510 |  |  |  | — |  |  |  | 404 |
|  |  | 380.1 |  |  |  | 107.3 |  |  |  | 299.5 |  |  |  | 721 |  |  |  | 199 |  |  |  | 593 |
Proposed (not recognised as a liability at 31 December): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Final |  |  | 85.9 |  |  |  | 78.1 |  |  |  | 71 .0 |  |  |  | 156 |  |  |  | 141 |  |  |  | 135 |

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