Discontinued Operations, Danaher Separation And Other Disposition Discontinued Operations, Danaher Separation And Other Disposition (Summary Of Major Classes Of Assets And Liabilities Of Discontinued Operations) (Details) - Communications business - USD ($) $ in Millions	Oct. 02, 2015	Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Accounts receivable, net	$ 0.0	$ 188.1
Inventories	0.0	48.7
Prepaid expenses and other	0.0	14.9
Property, plant and equipment	0.0	31.1
Goodwill and other intangibles, net	0.0	1,600.7
Total assets, discontinued operations	0.0	1,883.5
Trade accounts payable	0.0	50.0
Accrued expenses and other liabilities	42.4	417.6
Total liabilities, discontinued operations	$ 42.4	$ 467.6