| **Segment Results (Details) $ in Millions**    | 3 Months Ended | 6 Months Ended |
|------------------------------------------------|----------------|----------------|
||
| **Segment Reporting [Abstract]**               |           |           |   |   |
| Number of reporting segments | segment         |           |           | 2 |   |
| **Segment Reporting Information [Line Items]** |           |           |   |   |
| Net sales                                      | $ 960.8        | $ 965.9        | $ 1,927.2 | $ 1,943.6 |
| Segment earnings                               | 227.4          | 178.0          | 421.3 | 354.5 |
| Corporate expense                              | 9.0            | (0.3)          | 13.0 | (4.0) |
| Interest expense                               | (4.5)          | (2.1)          | (8.5) | (3.6) |
| Earnings before income taxes                   | 208.9          | 165.3          | 380.2 | 321.9 |
| Provision for income taxes                     | 51.9           | 39.1           | 96.3 | 75.9 |
| Net Earnings                                   | 157.0          | 126.2          | 283.9 | 246.0 |
| Impairment expense                             | 0.0            | 0.0            | 15.6 | 0.0 |
| Pension Plan                                   |           |           |   |   |
| **Segment Reporting Information [Line Items]** |           |           |   |   |
| Settlement income                              | (6.0)          | 0.0            | (6.0) | 0.0 |
| Pension expense                                | 0.4            | 3.7            | 0.7 | 7.3 |
| Inter-segment                                  |           |           |   |   |
| **Segment Reporting Information [Line Items]** |           |           |   |   |
| Net sales                                      | (5.7)          | (8.1)          | (11.1) | (16.5) |
| Segment earnings                               | 0.0            | 0.0            | 0.0 | (0.1) |
| Corporate                                      |           |           |   |   |
| **Segment Reporting Information [Line Items]** |           |           |   |   |
| Corporate expense                              | (14.0)         | (10.6)         | (32.6) | (29.0) |
| Impairment expense                             | 0.0            | 0.0            | 3.1 | 0.0 |
| Corporate | Pension Plan                       |           |           |   |   |
| **Segment Reporting Information [Line Items]** |           |           |   |   |
| Settlement income                              | (1.0)          | 0.0            | (1.0) | 0.0 |
| Pension expense                                | 0.0            | 0.4            | 0.0 | 0.7 |
| North America | Pension Plan                   |           |           |   |   |
| **Segment Reporting Information [Line Items]** |           |           |   |   |
| Settlement income                              | (5.0)          | 0.0            | (5.0) | 0.0 |
| Pension expense                                | 0.0            | 2.6            | 0.0 | 5.2 |
| North America | Operating Segments             |           |           |   |   |
| **Segment Reporting Information [Line Items]** |           |           |   |   |
| Net sales                                      | 722.3          | 744.1          | 1,475.0 | 1,474.2 |
| Segment earnings                               | 199.1          | 159.9          | 387.7 | 311.7 |
| Rest of World                                  |           |           |   |   |
| **Segment Reporting Information [Line Items]** |           |           |   |   |
| Impairment expense                             | 0.0            | 0.0            | 12.5 | 0.0 |
| Rest of World | Operating Segments             |           |           |   |   |
| **Segment Reporting Information [Line Items]** |           |           |   |   |
| Net sales                                      | 244.2          | 229.9          | 463.3 | 485.9 |
| Segment earnings                               | $ 28.3         | $ 18.1         | $ 33.6 | $ 42.9 |

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Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement.
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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.
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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.
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Amount of the cost of borrowed funds accounted for as interest expense.
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