Acquisition Pro Forma Results (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Business Acquisition, Pro Forma Information [Abstract]
Revenues	$ 18,988.4	$ 18,230.0
Income from Continuing Operations	2,045.8	1,688.8
Net Income	$ 2,042.3	$ 1,683.9
Earnings per Share from Continuing Operations:
Basic (in dollars per share)	$ 5.18	$ 4.24
Diluted (in dollars per share)	5.15	4.20
Earnings per Share:
Basic (in dollars per share)	5.17	4.22
Diluted (in dollars per share)	$ 5.14	$ 4.19
Affymetrix, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	$ 385.0
Business Combination, Pro Forma Information, Operating Income (Loss) of Acquiree since Acquisition Date, Actual	(38.0)
FEI Company [Member]
Business Acquisition [Line Items]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	251.0
Business Combination, Pro Forma Information, Operating Income (Loss) of Acquiree since Acquisition Date, Actual	(125.0)
Non-recurring Pro Forma Adjustments, Deferred Revenue [Member]
Business Acquisition, Pro Forma Information [Abstract]
Income from Continuing Operations	$ (6.0)	$ (14.0)
Non-recurring Pro Forma Adjustments, Fair Value Adjustment to Inventories [Member]
Business Acquisition, Pro Forma Information [Abstract]
Income from Continuing Operations		(99.0)
Non-recurring Pro Forma Adjustments, Transaction Costs [Member]
Business Acquisition, Pro Forma Information [Abstract]
Income from Continuing Operations		(102.0)
Non-recurring Pro Forma Adjustments, Conform Accounting Policies [Member]
Business Acquisition, Pro Forma Information [Abstract]
Income from Continuing Operations		(33.0)
Non-recurring Pro Forma Adjustments, Initial Restructuring Charges [Member]
Business Acquisition, Pro Forma Information [Abstract]
Income from Continuing Operations		$ (46.0)

Business Acquisition, Pro Forma Earnings Per Share

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Business Acquisition, Pro Forma Earnings Per Share From Continuing Operations

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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Per basic share amount of pro forma income from continuing operations, after tax, as if the business combination had been completed at the beginning of a period.

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Per diluted share amount of pro forma income from continuing operations, after tax, as if the business combination had been completed at the beginning of a period.

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Amount after tax of pro forma income from continuing operations as if the business combination had been completed at the beginning of a period.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
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This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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-Name Accounting Standards Codification
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