XML 17 R1.htm IDEA: XBRL DOCUMENT v3.25.3
Cover - USD ($)
$ in Billions
 12 Months Ended
Sep. 30, 2025
Mar. 31, 2025
Cover [Abstract]    
Document Type 10-K  
Document Annual Report true  
Document Period End Date Sep. 30, 2025  
Current Fiscal Year End Date --09-30  
Document Transition Report false  
Entity File Number 001-37757  
Entity Registrant Name Adient plc  
Entity Incorporation, State or Country Code L2  
Entity Tax Identification Number 98-1328821  
Entity Address, Address Line One 25 North Wall Quay  
Entity Address, City or Town Dublin 1  
Entity Address, Country IE  
Entity Address, Postal Zip Code D01 H104  
City Area Code 734  
Local Phone Number 254-5000  
Title of 12(b) Security Ordinary Shares, par value $0.001  
Trading Symbol ADNT  
Security Exchange Name NYSE  
Entity Well-known Seasoned Issuer Yes  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
ICFR Auditor Attestation Flag true  
Document Financial Statement Error Correction Flag false  
Entity Shell Company false  
Entity Public Float   $ 1.1
Entity Common Stock, Shares Outstanding 79,151,497  
Documents Incorporated by Reference
Documents Incorporated by Reference

Portions of the Registrant's definitive proxy statement relating to its 2026 annual general meeting of shareholders to be held on March 10, 2026 (the “2026 Proxy Statement”) are incorporated by reference into Part III of this Annual Report on Form 10-K where indicated. The 2026 Proxy Statement will be filed with the U.S. Securities and Exchange Commission within 120 days after the end of the fiscal year to which this report relates.
  
Entity Central Index Key 0001670541  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus FY  
Amendment Flag false