Business Acquisitions - Narrative, Atmel (Details) - Atmel Corporation shares in Millions, $ in Millions	Apr. 04, 2016 USD ($) shares
Business Acquisition [Line Items]
Cash paid for shares	$ 2,980.0
Shares issued in acquisition (in shares) \| shares	10.1
Equity interest issued or issuable, value assigned	$ 486.1
Separately recognized transactions, expenses and losses recognized	14.9
Consideration transferred, share based payment awards	7.5
Total consideration transferred	3,470.0
Recognized identifiable assets acquired and liabilities assumed, liabilities	653.0
Payments to acquire businesses portion funded by foreign subsidiaries cash balances	2,040.0
Payments to acquire businesses portion funded by additional line of credit borrowings	$ 940.0
Useful life (in years)	9 years
Net deferred tax liability for future amortization expense of acquired intangible assets	$ 178.1

Business Combination, Consideration Transferred, Share-based Payment Awards

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Payments to Acquire Businesses Portion Funded by Additional Line of Credit Borrowings

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Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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