Danaher Separation And Discontinued Operations (Components Of Income Related To Discontinued Operations) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jul. 01, 2016	Jul. 03, 2015	Jul. 01, 2016	Jul. 03, 2015
Discontinued Operations and Disposal Groups [Abstract]
Sales		$ 166.9		$ 345.5
Costs of sales		(50.7)		(97.5)
Selling, general, and administrative expenses		(79.2)		(152.2)
Research and development expenses		(40.3)		(80.0)
Interest expense		(0.7)		(1.6)
(Loss) earnings from discontinued operations before income taxes		(4.0)		14.2
Income taxes		(15.8)		(22.2)
Loss from discontinued operations, net of income taxes	$ 0.0	$ (19.8)	$ 0.0	$ (8.0)

Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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- Definition

Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
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Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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