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Restructuring Reserve (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and acquisition-related costs | $ 78.9 | $ 110.7 | $ 26.2
Restructuring charges | 44.2 | 17.4 | 15.3
Employee Severance [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | 2.5 | 2.0 | 0.6
Other Restructuring [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | 11.7 | 13.9 | 10.2
Facility Closing [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | 30.0 | $ 1.5 | $ 4.5
Maximum [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related cost, expected cost remaining | 35.0 |  |
Minimum [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related cost, expected cost remaining | $ 25.0 |  |

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