Taxes Based on Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Income (loss) before taxes	$ 103.3	$ 188.7	$ 284.2	$ (95.7)
Provision for (benefit from) income taxes	$ 22.2	$ 44.9	$ 68.5	$ (93.5)
Effective tax rate (as a percent)	21.50%	23.80%	24.10%	97.70%
Net tax charge related to the tax on global intangible low-taxed income (GILTI) of our foreign subsidiaries and the recognition of foreign withholding taxes on current year earnings, partially offset by the benefit from foreign-derived intangible income (FDII)	$ 3.3	$ 4.9	$ 10.5	$ 10.3
Net discrete tax benefit primarily from decreases in certain tax reserves, including associated interest and penalties, as a result of closing tax years and effective settlements of certain foreign tax audits	11.8		11.8
Tax benefit from decreases in certain tax reserves, including interest and penalties, as a result of closing tax years				11.5
Tax benefits related to excess tax benefits associated with stock-based payments			2.8	6.8
Reasonably possible decrease in uncertain tax positions, including interest and penalties, primarily as a result of audit settlements and closing tax years during the next 12 months	$ 10.0		$ 10.0
ADPP
Discrete tax benefits related to the effective settlement of the ADPP				179.0
Tax benefits related to the effective settlement of the ADPP on the tax effect of the pretax charge				102.0
Pretax charge related to the effective settlement of the ADPP				446.9
Tax benefit related to release of stranded tax effects in AOCI through income statement				$ 77.0