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Business Acquisitions - Schedule of Purchased Intangible Assets, Atmel (Details) - Atmel Corporation $ in Millions | Apr. 04, 2016 USD ($)
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Business Acquisition [Line Items] |
Useful life (in years) | 9 years
Purchased intangible assets | $ 1,888.4
Core/developed technology |
Business Acquisition [Line Items] |
Useful life (in years) | 11 years
Purchased intangible assets | $ 1,075.0
Customer-related |
Business Acquisition [Line Items] |
Useful life (in years) | 6 years
Purchased intangible assets | $ 630.6
Backlog |
Business Acquisition [Line Items] |
Useful life (in years) | 1 year
Purchased intangible assets | $ 40.3
Other intangible assets |
Business Acquisition [Line Items] |
Useful life (in years) | 5 years
Purchased intangible assets | $ 1.8
In-process research and development |
Business Acquisition [Line Items] |
In-process research and development | $ 140.7

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