Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Oct. 03, 2021	Sep. 27, 2020	Jan. 03, 2021
Income Tax [Line Items]
Income (Loss) incurred before provision for income taxes	$ 20.7	$ (38.8)	$ (20.0)	$ (173.4)
Provision for income taxes	$ 6.0	$ (10.3)	$ 24.4	$ (2.4)
Effective tax rate	29.10%	26.50%	(122.20%)	1.40%
Net Cost Impact Due To Valuation Allowances	$ 27.5	$ 39.0	$ 27.5	$ 39.0
Net Benefit Due to Increase In Interest Expenses	10.9			12.0
Net Cost Due to Tax Rate Difference	10.6			$ 9.7
Unrecognized tax benefits	28.3		28.3
Unrecognized tax benefits that would affect effective income tax rate	23.8		23.8
Accrued interest and penalties	6.7		6.7
Johnson and Johnson
Income Tax [Line Items]
Indemnification receivable	17.6		17.6		$ 17.0
Interest and penalties	$ 0.2		$ 0.6