Business Acquisitions - Schedule of Purchased Intangible Assets (Details) - Microsemi Corporation - USD ($) $ in Millions		9 Months Ended
May 29, 2018	Dec. 31, 2018
Business Acquisition [Line Items]
Useful life (in years)	9 years
Purchased intangible assets	$ 5,466.9
Core and developed technology
Business Acquisition [Line Items]
Useful life (in years)	15 years	15 years
Purchased intangible assets	$ 4,312.1	$ 4,310.0
Customer-related
Business Acquisition [Line Items]
Useful life (in years)	12 years
Purchased intangible assets	$ 326.9
Backlog
Business Acquisition [Line Items]
Useful life (in years)	1 year	1 year
Purchased intangible assets	$ 27.9	$ 27.9
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	$ 794.2

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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