| **Inventories (Tables)**            | 6 Months Ended                                                                                                                                                                                                                     |
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| **Inventory Disclosure [Abstract]** |                                                                                                                                                                                                                               |
| Components of Inventory             | The components of inventories were as follows:(in millions)June 30, 2019 December 31, 2018Raw materials$49.1 $55.4Work in process4.9 4.3Finished goods316.7 280.9Total inventories$370.7 $340.6 |

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| - References
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| - Definition
Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.
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