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Earnings and Dividends per Share Dividends Per Share (Details) - $ / shares
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Earnings and Dividends Per Share [Abstract]        
Dividends per common share (in usd per share) $ 0.2975 $ 0.2700 $ 0.5950 $ 0.5400