XML 44 R37.htm IDEA: XBRL DOCUMENT
v3.25.3

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Income Taxes [Line Items] |  |  |  |
Effective income tax rate | 26.90% | 29.60% | 26.40% | 27.00%
Increase/(decrease) in effective tax rate due to impact of discrete tax items | 1.30% | 1.20% | 1.80% | 2.80%
Net increase to income tax reserves for unrecognized tax benefits based on tax positions related to current and prior years |  |  | $ 3 |
Unrecognized tax benefits reserve that would impact effective tax rate if released into income | $ 39 |  | 39 |
Net Decrease To Income Tax Reserves For Unrecognized Tax Benefits Based on Tax Positions Related to Current and Prior Years |  |  | 9 |
Current Tax Payable Within Other Current Liabilities |  |  |  |
Income Taxes [Line Items] |  |  |  |
Unrecognized tax benefits reserve that would impact effective tax rate if released into income | 11 |  | 11 |
Non-Current Tax Payable Within Other Non-current Liabilities |  |  |  |
Income Taxes [Line Items] |  |  |  |
Unrecognized tax benefits reserve that would impact effective tax rate if released into income | $ 27 |  | $ 27 |

X
- Definition Effective income tax rate reconciliation discrete tax items. + References No definition available. + Details
Name: | alv_EffectiveIncomeTaxRateReconciliationDiscreteTaxItems
Namespace Prefix: | alv_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Income tax reconciliation change in reserves for uncertain tax positions. + References No definition available. + Details
Name: | alv_IncomeTaxReconciliationChangeInReservesForUncertainTaxPositions
Namespace Prefix: | alv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Income taxes. + References No definition available. + Details
Name: | alv_IncomeTaxesLineItems
Namespace Prefix: | alv_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Net Decrease To Income Tax Reserves For Unrecognized Tax Benefits Based on Tax Positions Related to Current and Prior Years + References No definition available. + Details
Name: | alv_NetDecreaseToIncomeTaxReservesForUnrecognizedTaxBenefitsBasedOnTaxPositionsRelatedToCurrentAndPriorYears
Namespace Prefix: | alv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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 -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 231 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231 + Details
Name: | us-gaap_EffectiveIncomeTaxRateContinuingOperations
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 217 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-217 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-15A + Details
Name: | us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherCurrentLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherNoncurrentLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |