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Nonconsolidated Partially-Owned Affiliates - Partially-owned Affiliates (Details) | Sep. 30, 2020 | Jan. 31, 2020 | Sep. 30, 2019
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Adient Yanfeng Seating Mechanism Co., Ltd. (AYM) |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
% ownership | 50.00% |  | 50.00%
Changchun FAWAY Adient Automotive Systems Co. Ltd. (CFAA) |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
% ownership | 49.00% |  | 49.00%
Yanfeng Adient Seating Co., Ltd. (YFAS) |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
% ownership | 49.90% |  | 49.90%
Yanfeng Global Automotive Interiors Systems Co., Ltd. (YFAI) |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
% ownership | 0.00% | 30.00% | 30.00%

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