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Statements of Changes in Equity (Parenthetical) - $ / shares | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Statement of changes in equity [abstract] |  |  |
Interim dividends, paid per share |  | $ 0.20 | $ 0.56
Proposed dividends, per share | $ 0.44 | $ 0.24 | $ 0.70

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- References No definition available. + Details
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- Definition Interim dividends per share. + References No definition available. + Details
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- Definition Proposed dividends per share. + References No definition available. + Details
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