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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) - $ / shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]      
Cash dividends (in dollars per share) $ 0.96 $ 0.92 $ 0.90
Common stock purchased by directors' deferred compensation plan (in shares) (31,748) 14,600 16,950