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Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Repurchased of common stock shares |  | $ 200,000 |
Initial delivery of shares under accelerated share repurchase agreement, shares | 3,611,870 |  |
Retained Earnings [Member] |  |  |
Cash dividends declared, per common share | $ 1.08 | $ 1.02 | $ 0.96

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