Represents the after tax amount of acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

No definition available.

+ Details

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Namespace Prefix:	aph_
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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.

+ Details

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 23
-URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e1043-128460

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- Definition

The number of businesses acquired by the entity during the period.

+ References

No definition available.

+ Details

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Name:	us-gaap_BusinessAcquisitionAxis=aph_FCIAsiaPteLtdMember
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Acquisitions, Acquisition-related Expenses (Details) $ in Millions	3 Months Ended				12 Months Ended
	Dec. 31, 2018 USD ($)	Jun. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2018 USD ($) item	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Acquisitions
Number of acquisitions \| item					3
Acquisition-related expenses	$ 8.5	$ 4.0	$ 6.3		$ 8.5	$ 4.0	$ 36.6
Acquisition-related expenses, net of tax	$ 7.2	$ 3.7	$ 5.8
FCI Asia Pte Ltd (“FCI”)
Acquisitions
Acquisition-related expenses				$ 30.3
Acquisition-related expenses, net of tax				$ 27.3