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CONSOLIDATED STATEMENT OF CHANGES IN EQUITY AND OTHER COMPREHENSIVE INCOME (Unaudited) (Parenthetical) $ in Millions | 3 Months Ended | 6 Months Ended
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Jun. 30, 2018 USD ($) $ / shares | Jun. 30, 2018 USD ($) $ / shares
Statement of Stockholders' Equity [Abstract] |  |
Cash dividends, per share (in dollars per share) | $ / shares | $ 0.39 | $ 0.78
Common stock authorized, amount for future purchases | $ | $ 590.1 | $ 590.1

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- Definition Aggregate dividends paid 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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- Definition Amount of stock repurchase plan authorized. + References No definition available. + Details
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