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Statements of Changes in Equity (Parenthetical) - $ / shares
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Equity      
Interest on shareholder's equity $ 1.08455 $ 0.80122 $ 0.33820
Additional proposed dividends, approved 0.08139 0.03859 0.11847
Additional proposed dividends, per share $ 0.19145 $ 0.14148 $ 0.05970