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Changes in Accumulated Other Comprehensive Loss - Reclassifications from Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 28, 2018 | Sep. 29, 2017 | Sep. 28, 2018 | Sep. 29, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Reclassifications, tax | $ 0.2 | $ 0.0 | $ 0.4 | $ 0.0
Other income and expense | 25.6 | 8.7 | 58.2 | 87.6
Net income | (167.1) | (108.9) | (463.9) | (282.0)
Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Net income | (1.0) | (0.3) | (1.8) | (0.1)
Effects of Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Other income and expense | $ (1.0) | $ (0.3) | $ (1.8) | $ (0.1)

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