XML 78 R62.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Benefit Plans and Other Postretirement Benefits, Weighted-average assumptions (Details) - Pension Benefits - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016
U.S. |  |
Weighted-average assumptions used to determine benefit obligations |  |
Benefit obligation discount rate (as a percent) | 3.48% | 3.93%
Increase (decrease) in benefit obligation due to change in discount rate | $ 24.0 |
International Plans |  |
Weighted-average assumptions used to determine benefit obligations |  |
Benefit obligation discount rate (as a percent) | 2.21% | 2.28%

X
- Definition The increase (decrease) in the plan benefit obligation during the reporting period due to change in the discount rate. + References No definition available. + Details
Name: | aph_DefinedBenefitPlanBenefitObligationIncreaseDecreaseDueToChangeInDiscountRate
Namespace Prefix: | aph_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RetirementPlanSponsorLocationAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RetirementPlanSponsorLocationAxis=us-gaap_ForeignPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |