Restructuring, Asset Impairments and Other, Net - Narrative (Details) $ in Millions	3 Months Ended
	Apr. 03, 2020 USD ($) employee	Mar. 29, 2019 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring program expense	$ 32.8	$ 5.6
Charges	$ 31.3
Voluntary separation program
Restructuring Cost and Reserve [Line Items]
Number of Positions Eliminated | employee	243
Restructuring program expense	$ 27.5
Involuntary separation program
Restructuring Cost and Reserve [Line Items]
Expected Number of Positions Eliminated | employee	215
Charges	$ 15.0
Other general workforce reduction
Restructuring Cost and Reserve [Line Items]
Restructuring program expense	$ 3.4
Post-Quantenna acquisition restructuring
Restructuring Cost and Reserve [Line Items]
Number of Positions Eliminated | employee	10
Restructuring program expense	$ 0.4
Employee severance | Other general workforce reduction
Restructuring Cost and Reserve [Line Items]
Number of Positions Eliminated | employee	88