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Acquisitions - Pro Forma Information (Details) - DuPont - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Business Acquisition [Line Items] |  |  |  |
Pro forma Revenue | $ 1,035.6 | $ 974.6 | $ 3,508.6 | $ 3,160.7
Pro forma Diluted earnings per share from continuing operations (in USD per share) | $ 0.57 | $ 1.15 | $ 3.48 | $ 4.09

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