Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Other Intangible Assets

Schedule of changes in the carrying amount of goodwill by segment

	Interconnect		Cable
	Products and		Products and
	Assemblies		Solutions		Total
Goodwill at December 31, 2015	$	2,569.2	$	123.7	$	2,692.9
Acquisition-related		1,008.7		22.6		1,031.3
Foreign currency translation		(45.4)		—		(45.4)
Goodwill at December 31, 2016		3,532.5		146.3		3,678.8
Acquisition-related		233.6		0.2		233.8
Foreign currency translation		130.0		—		130.0
Goodwill at December 31, 2017	$	3,896.1	$	146.5	$	4,042.6

Summary of the Company's intangible assets

		December 31, 2017						December 31, 2016
	Weighted	Gross				Net		Gross				Net
	Average	Carrying		Accumulated		Carrying		Carrying		Accumulated		Carrying
	Life (years)	Amount		Amortization		Amount		Amount		Amortization		Amount
Customer relationships	10	$	398.1	$	199.8	$	198.3	$	381.1	$	159.1	$	222.0
Proprietary technology	11		107.5		50.7		56.8		106.7		40.9		65.8
Backlog and other	2		34.0		33.6		0.4		34.0		33.5		0.5
Total intangible assets (definite-lived)	10		539.6		284.1		255.5		521.8		233.5		288.3
Trade names (indefinite-lived)	-		186.1		—		186.1		186.1		—		186.1
		$	725.7	$	284.1	$	441.6	$	707.9	$	233.5	$	474.4