Business Combinations Business Combinations - Purchase Price Allocation, SuperSonic (Details) - USD ($) $ in Millions	Dec. 28, 2019	Nov. 21, 2019	Sep. 28, 2019
Business Acquisition [Line Items]
Goodwill	$ 2,594.2		$ 2,563.7
SuperSonic Imagine
Business Acquisition [Line Items]
Cash		$ 2.6
Accounts receivable		7.1
Inventory		10.0
Other assets		6.5
Other assets		4.4
Accounts payable and accrued expenses		13.0
Deferred revenue		1.8
Short and long-term debt		(8.8)
Other liabilities		(3.8)
Developed technology		33.2
Customer relationships		3.1
Trade names		3.5
Deferred income taxes, net		(2.4)
Goodwill		28.7
Purchase Price		$ 69.3