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Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Consolidated Statements of Changes in Stockholders' Equity [Abstract] |  |  |
Cash dividends - per share (in dollars per share) | $ 1.05 | $ 0.99 | $ 0.92
Net issuance of shares to employee benefit plans and other stock plans (in shares) | 123,645 | 130,157 | 285,059

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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