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Consolidated Statements of Changes in Shareholders' Equity (unaudited) (Parenthetical) - $ / shares | 3 Months Ended
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Mar. 31, 2019 | Mar. 31, 2018
Restricted stock award grants (in shares) | 37,708,000 | 39,790,000
Purchase of treasury stock (in shares) | 10,769,000 |
Cash dividends declared (in dollars per share) | $ 165.000 | $ 170.00
Restricted Stock |  |
Purchase of treasury stock (in shares) | 6,040,000 | 7,700,000

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