Revenue Recognition (Details) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2018 USD ($)	Jun. 30, 2018 USD ($) item
Revenue recognition
Practical expedient, performance obligation		true
Practical expedient, incremental cost of obtaining contract		true
Net sales	$ 1,981.4	$ 3,848.3
Minimum
Revenue recognition
Payment terms		30 days
Number of reporting periods that may be extended across for multiple delivery dates \| item		1
Maximum
Revenue recognition
Payment terms		120 days
Percentage of net sales recognized over time		5.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-04-01 \| Minimum
Revenue recognition
Remaining performance obligation term		3 months
Interconnect Products and Assemblies
Revenue recognition
Net sales	1,870.2	$ 3,640.2
Cable Products and Solutions
Revenue recognition
Net sales	111.2	208.1
End customers and contract manufacturers
Revenue recognition
Net sales	1,671.3	3,256.8
End customers and contract manufacturers \| Interconnect Products and Assemblies
Revenue recognition
Net sales	1,587.5	3,103.0
End customers and contract manufacturers \| Cable Products and Solutions
Revenue recognition
Net sales	83.8	153.8
Distributors and resellers
Revenue recognition
Net sales	310.1	591.5
Distributors and resellers \| Interconnect Products and Assemblies
Revenue recognition
Net sales	282.7	537.2
Distributors and resellers \| Cable Products and Solutions
Revenue recognition
Net sales	27.4	54.3
United States
Revenue recognition
Net sales	576.3	1,103.3
United States \| Interconnect Products and Assemblies
Revenue recognition
Net sales	522.4	1,001.6
United States \| Cable Products and Solutions
Revenue recognition
Net sales	53.9	101.7
China
Revenue recognition
Net sales	537.0	1,065.1
China \| Interconnect Products and Assemblies
Revenue recognition
Net sales	535.9	1,063.2
China \| Cable Products and Solutions
Revenue recognition
Net sales	1.1	1.9
Other foreign locations
Revenue recognition
Net sales	868.1	1,679.9
Other foreign locations \| Interconnect Products and Assemblies
Revenue recognition
Net sales	811.9	1,575.4
Other foreign locations \| Cable Products and Solutions
Revenue recognition
Net sales	$ 56.2	$ 104.5

The number of reporting periods that may extended across for multiple delivery dates relating to customer contracts.

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- Definition

The percentage of net sales recognized over time.

+ References

No definition available.

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- Definition

Payment terms for contract with customer. Includes, but is not limited to, timing of payment, existence of financing component, variability of consideration and constraint on variable consideration.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 32
-Paragraph 2A
-URI http://asc.fasb.org/extlink&oid=82859839&loc=SL82860478-203043

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- Definition

Indicates (true/false) whether practical expedient is elected to recognize incremental cost of obtaining contract as expense when incurred if amortization period would have been one year or less.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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- Definition

Indicates (true/false) whether practical expedient is elected not to disclose amount of transaction price allocated to remaining performance obligation and explanation of expected timing of revenue recognition, when contract has expected duration of one year or less or right to consideration corresponds directly to performance completed.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130558-203045

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- Definition

Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 606
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