Revenue Recognition (Details)	3 Months Ended
Mar. 31, 2019 item
Revenue recognition
Remaining performance obligation, expected timing for substantial portion of performance obligations	3 months
Practical expedient, performance obligation	true
Minimum
Revenue recognition
Number of reporting periods that may be extended across for multiple delivery dates	1
Maximum
Revenue recognition
Percentage of net sales recognized over time	5.00%
Remaining performance obligation, expected timing for nearly all performance obligations	1 year

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

No definition available.

Name:	aph_NumberOfReportingPeriodsMultipleDeliveriesDates
Namespace Prefix:	aph_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of net sales recognized over time.

+ References

No definition available.

+ Details

Name:	aph_PercentageOfNetSalesRecognizedOverTime
Namespace Prefix:	aph_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	aph_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriodForNearlyAllPerformanceObligations
Namespace Prefix:	aph_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Period in which a substantial portion of the remaining performance obligations 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

No definition available.

+ Details

Name:	aph_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriodSubstantialPortion
Namespace Prefix:	aph_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- 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

Name:	us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Indicates (true false) whether optional exemption was applied not to disclose amount of transaction price allocated to and explanation of expected timing of revenue recognition for remaining performance obligation, when contract has expected duration of one year or less or right to consideration corresponds directly to performance completed.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130558-203045

+ Details

Name:	us-gaap_RevenuePracticalExpedientRemainingPerformanceObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:booleanItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: