Acquisitions (Narrative) (Details) $ in Millions	3 Months Ended	9 Months Ended
Mar. 31, 2017 USD ($)	Sep. 29, 2017 USD ($) Businesses	Sep. 30, 2016 USD ($)
Business Acquisition [Line Items]
Number of businesses acquired \| Businesses		5
Net cash consideration		$ 112.0	$ 99.6
Revenue reported by acquired entity for last annual period		70.0
Goodwill		73.2
Payment for purchase of noncontrolling interests	$ 64.0	$ 64.4	0.0
Decrease in noncontrolling interests	(63.0)
Decrease in additional paid-in capital	$ (1.0)
Fair value adjustment to inventory \| Cepheid
Business Acquisition [Line Items]
Fair value adjustment to inventory			$ 23.0

Amount of other increase (decrease) in additional paid in capital (APIC).

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Total revenue reported by the acquired entity for its previous full fiscal year before the business acquisition.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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-Publisher FASB
-Name Accounting Standards Codification
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Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

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The number of businesses acquired by the entity during the period.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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Amount of cash outflow to a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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