Represents the percentage of the face value of debt instrument net of discount, at which debt instrument is issued.

No definition available.

Name:	aph_DebtInstrumentPercentageOfFaceAmountNetOfDiscount
Namespace Prefix:	aph_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

States whether the entity was in compliance with the debt covenants throughout the reporting period, and describes facts and circumstances of any compliance failure.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

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

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

+ Details

Name:	us-gaap_DebtInstrumentMaturityDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

+ Details

Name:	us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=aph_EuroNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=aph_EuroSeniorNotes0.750PercentDueMay2026Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=aph_EuroSeniorNotes2.00PercentDueOctober2028Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt, Euro Senior Notes (Details) € in Millions, $ in Millions		9 Months Ended
	May 04, 2020 USD ($)	Sep. 30, 2021	May 04, 2020 EUR (€)
Euro Notes [Member]
Debt
Redemption price as a percentage of principal amount		100.00%
Debt instrument, covenant compliance		At September 30, 2021, the Company was in compliance with the financial covenants under its Euro Notes
0.750% Euro Senior Notes Due May 2026 [Member]
Debt
Debt instrument, principal amount	$ 545.4		€ 500.0
Stated interest rate (as a percent)	0.75%		0.75%
Debt maturity date		May 04, 2026
Debt instrument, face amount, net of discount (as a percent)	99.563%		99.563%
Redemption price as a percentage of principal amount	100.00%
2.000% Euro Senior Notes due October 2028 [Member]
Debt
Stated interest rate (as a percent)		2.00%