Acquisitions - Narrative (Details) $ / shares in Units, $ in Millions		12 Months Ended
Mar. 10, 2017 $ / shares	Oct. 28, 2017 USD ($)
Business Acquisition [Line Items]
Acquisition related costs		$ 47.5
Linear Technology Corporation [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date		$ 913.2
Common Stock [Member] \| Linear Technology Corporation [Member]
Business Acquisition [Line Items]
Business acquisition, share price \| $ / shares	$ 46
Interests issued conversion ratio per share	0.2321

Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Conversion Ratio

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

+ References

No definition available.

+ Details

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 23
-URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e1043-128460

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- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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