Business Acquisitions - Schedule of Purchased Intangible Assets, Microsemi (Details) - Microsemi Corporation - USD ($) $ in Millions		12 Months Ended
	May 29, 2018	Mar. 31, 2019
Business Acquisition [Line Items]
Useful life (in years)	13 years
Purchased intangible assets	$ 5,634.5
Core and developed technology
Business Acquisition [Line Items]
Useful life (in years)	15 years	15 years
Purchased intangible assets	$ 4,569.1	$ 4,570.0
Customer-related
Business Acquisition [Line Items]
Useful life (in years)	12 years	12 years
Purchased intangible assets	$ 200.2	$ 200.2
Backlog
Business Acquisition [Line Items]
Useful life (in years)	1 year	1 year
Purchased intangible assets	$ 12.3	$ 12.3
Other
Business Acquisition [Line Items]
Useful life (in years)	4 years	4 years
Purchased intangible assets	$ 5.8	$ 5.8
In-process research and development
Business Acquisition [Line Items]
In-process research and development	$ 847.1