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Condensed Consolidated Statements of Changes in Common Shareholders' Equity (Unaudited) (Parentheticals) - $ / shares
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dividends per share (in dollars per share) $ 1.3 $ 1.3 $ 2.6 $ 2.6