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Revenue Recognition - Narratives (Details) | 3 Months Ended
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Dec. 31, 2023
Revenue from Contract with Customer [Abstract] |
Revenues related to prior year sales, percent | 1.00%

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- Definition Revenue From Contract With Customer, Excluding Assessed Tax, Related To Prior Year Sales, Percent + References No definition available. + Details
Name: | adnt_RevenueFromContractWithCustomerExcludingAssessedTaxRelatedToPriorYearSalesPercent
Namespace Prefix: | adnt_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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