Goodwill and Other Intangible Assets (Goodwill) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2017	Sep. 30, 2017
Goodwill [Roll Forward]
December 31, 2016		$ 8,647,142
Additions	$ 58,000	57,518
Other		25,649
Currency translation adjustments		63,647
September 30, 2017	8,793,956	8,793,956
RF Technology
Goodwill [Roll Forward]
December 31, 2016		4,687,670
Additions		38,349
Other		22,385
Currency translation adjustments		20,528
September 30, 2017	4,768,932	4,768,932
Medical & Scientific Imaging
Goodwill [Roll Forward]
December 31, 2016		3,185,071
Additions		0
Other		3,264
Currency translation adjustments		19,922
September 30, 2017	3,208,257	3,208,257
Industrial Technology
Goodwill [Roll Forward]
December 31, 2016		363,978
Additions		0
Other		0
Currency translation adjustments		13,656
September 30, 2017	377,634	377,634
Energy Systems & Controls
Goodwill [Roll Forward]
December 31, 2016		410,423
Additions		19,169
Other		0
Currency translation adjustments		9,541
September 30, 2017	$ 439,133	$ 439,133

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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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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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
-Paragraph 1
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=73531572&loc=d3e961-128460

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