Revenue from Contracts with Customers (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 27, 2020	Mar. 29, 2019	Dec. 27, 2019	Dec. 28, 2018
Disaggregation of Revenue [Line Items]
Revenue Reserves	$ 291.9	$ 205.8	$ 337.4	$ 405.4
Revenue Reserve Provision	475.3	626.8
Revenue Reserve Payments or Credits	(520.8)	(826.4)
Deferred Revenue, Revenue Recognized	2.3	4.5
Contract with Customer, Liability	5.3		6.2
Contract with Customer, Liability, Current	4.7		5.6
Capitalized Contract Cost, Gross	28.4		26.5
Capitalized Contract Cost, Amortization	1.5	1.5
Contract with Customer, Liability, Noncurrent	0.6		0.6
Net sales	$ 665.8	$ 790.6
Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue	78.50%	80.70%
Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Revenue	21.50%	19.30%
Royalty [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 15.6	$ 17.4
Rebates and Chargebacks [Member]
Disaggregation of Revenue [Line Items]
Revenue Reserves	254.8	151.4	295.8	354.3
Revenue Reserve Provision	457.8	602.9
Revenue Reserve Payments or Credits	(498.8)	(805.8)
Allowance for Sales Returns [Member]
Disaggregation of Revenue [Line Items]
Revenue Reserves	26.1	32.0	28.4	34.0
Revenue Reserve Provision	3.8	6.2
Revenue Reserve Payments or Credits	(6.1)	(8.2)
Other Sales Deductions [Member]
Disaggregation of Revenue [Line Items]
Revenue Reserves	11.0	22.4	$ 13.2	$ 17.1
Revenue Reserve Provision	13.7	17.7
Revenue Reserve Payments or Credits	$ (15.9)	$ (12.4)
Minimum
Disaggregation of Revenue [Line Items]
Royalty Rate Percentage	18.00%
Maximum
Disaggregation of Revenue [Line Items]
Royalty Rate Percentage	26.00%