Acquisitions Purchase Price (Details) - USD ($)			9 Months Ended		12 Months Ended
	Sep. 19, 2016	Mar. 31, 2016	Oct. 01, 2016	Sep. 26, 2015	Dec. 31, 2015
Purchase Price
Cash paid			$ 5,599,200,000	$ 307,600,000
Debt Assumed			254,800,000
Purchase Price Payable			21,800,000
Cash acquired			(447,100,000)
Total Purchase Price			5,428,700,000
Net Assets Acquired [Abstract]
Current assets			787,300,000
Property, plant and equipment			181,900,000
Goodwill			2,762,500,000
Other assets			64,400,000
Liabilities assumed			(1,093,900,000)
Total Purchase Price			$ 5,428,700,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (in years)			13 years
Other Information
Purchase Price Paid For Acquisitions Completed In A Prior Year			$ 1,000,000
In-Process Research and Development [Member]
Net Assets Acquired [Abstract]
Indefinite-lived intangible assets			115,700,000
Customer Relationships [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets			$ 1,466,000,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (in years)			16 years
Product Technology [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets			$ 973,200,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (in years)			8 years
Tradenames and other [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets			$ 171,600,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (in years)			8 years
FEI Company [Member]
Purchase Price
Cash paid	$ 4,432,800,000
Purchase Price Payable	18,400,000
Cash acquired	(369,100,000)
Total Purchase Price	4,082,100,000
Net Assets Acquired [Abstract]
Current assets	625,600,000
Property, plant and equipment	162,600,000
Goodwill	2,057,300,000
Other assets	56,500,000
Liabilities assumed	(845,500,000)
Total Purchase Price	4,082,100,000
Other Information
Revenue Reported by Acquired Entity					$ 930,000,000
Goodwill, Expected Tax Deductible Amount	65,000,000
FEI Company [Member] | In-Process Research and Development [Member]
Net Assets Acquired [Abstract]
Indefinite-lived intangible assets	104,700,000
FEI Company [Member] | Customer Relationships [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets	1,051,100,000
FEI Company [Member] | Product Technology [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets	739,800,000
FEI Company [Member] | Tradenames and other [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets	$ 130,000,000
Affymetrix, Inc. [Member]
Purchase Price
Cash paid		$ 1,162,200,000
Debt Assumed		254,200,000
Purchase Price Payable		3,300,000
Cash acquired		(77,900,000)
Total Purchase Price		1,341,800,000
Net Assets Acquired [Abstract]
Current assets		160,600,000
Property, plant and equipment		19,300,000
Goodwill		702,100,000
Other assets		7,800,000
Liabilities assumed		(246,500,000)
Total Purchase Price		1,341,800,000
Other Information
Revenue Reported by Acquired Entity					$ 360,000,000
Goodwill, Expected Tax Deductible Amount		0
Deferred Tax Liabilities, Undistributed Foreign Earnings		156,000,000
Affymetrix, Inc. [Member] | In-Process Research and Development [Member]
Net Assets Acquired [Abstract]
Indefinite-lived intangible assets		11,000,000
Affymetrix, Inc. [Member] | Customer Relationships [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets		413,200,000
Affymetrix, Inc. [Member] | Product Technology [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets		232,700,000
Affymetrix, Inc. [Member] | Tradenames and other [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets		$ 41,600,000
Other [Member]
Purchase Price
Cash paid			$ 4,200,000
Debt Assumed			600,000
Purchase Price Payable			100,000
Cash acquired			(100,000)
Total Purchase Price			4,800,000
Net Assets Acquired [Abstract]
Current assets			1,100,000
Goodwill			3,100,000
Other assets			100,000
Liabilities assumed			(1,900,000)
Total Purchase Price			4,800,000
Other [Member] | Customer Relationships [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets			1,700,000
Other [Member] | Product Technology [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets			$ 700,000