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CONSOLIDATED STATEMENT OF EQUITY - (Parenthetical) - $ / shares
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Cash dividends declared per common share (in dollars per share) $ 2.405      
Common Stock [Member]        
Cash dividends declared per common share (in dollars per share) $ 0.620 $ 0.600 $ 0.600 $ 0.585