XML 48 R37.htm IDEA: XBRL DOCUMENT
v3.22.2

Income taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Apr. 28, 2022 | May 31, 2021
Income Tax Examination [Line Items] |  |  |  |  |  |
Effective income tax rate | 14.00% | 16.80% | 12.90% | 12.60% |  |
Increase in unrecognized tax benefits resulting from tax positions taken during the current period | $ 50 |  | $ 95 |  |  |
Domestic Tax Authority |  |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |  |
Proposed additional income tax |  |  |  |  |  | $ 3,600
Repatriation tax on proposed additional tax |  |  |  |  |  | $ 900
Proposed additional income tax 2013-2015 |  |  |  |  | $ 5,100 |
Penalties on proposed additional income tax 2013-2015 |  |  |  |  | 2,000 |
Repatriation tax on proposed additional tax 2013-2015 |  |  |  |  | $ 2,200 |

X
- Definition Penalties on proposed additional income tax 2013-2015 + References No definition available. + Details
Name: | amgn_PenaltiesOnProposedAdditionalIncomeTax20132105
Namespace Prefix: | amgn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Proposed additional income tax + References No definition available. + Details
Name: | amgn_ProposedAdditionalIncomeTax
Namespace Prefix: | amgn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Proposed additional income tax 2013-2015 + References No definition available. + Details
Name: | amgn_ProposedAdditionalIncomeTax20132015
Namespace Prefix: | amgn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Repatriation tax on proposed additional tax + References No definition available. + Details
Name: | amgn_RepatriationTaxOnProposedAdditionalTax
Namespace Prefix: | amgn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Repatriation tax on proposed additional tax 2013-2015 + References No definition available. + Details
Name: | amgn_RepatriationTaxOnProposedAdditionalTax20132015
Namespace Prefix: | amgn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
Name: | us-gaap_EffectiveIncomeTaxRateContinuingOperations
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- 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_IncomeTaxExaminationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(2) -URI https://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319 + Details
Name: | us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=us-gaap_DomesticCountryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |