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v3.24.3

Acquisitions and Divestitures (Details) ¥ in Millions, ¥ in Millions, $ in Millions | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Apr. 30, 2023 USD ($) | Apr. 30, 2023 JPY (¥) | Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2023 JPY (¥) | Sep. 30, 2022 USD ($) affiliate | Sep. 30, 2022 JPY (¥) affiliate | Nov. 30, 2023 USD ($) | Nov. 30, 2023 CNY (¥) | Oct. 31, 2023
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Goodwill |  |  | $ 2,164 | $ 2,094 |  | $ 2,057 |  |  |  |
TURKEY |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Expected proceeds assets held for sale |  |  |  |  |  | 46 |  |  |  |
YFAS |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Expected proceeds assets held for sale |  |  |  |  |  | $ 693 |  |  |  |
Number of nonconsolidated partially-owned affiliates | affiliate |  |  |  |  |  | 2 | 2 |  |  |
YFAT |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Business combination, deposit to acquire interest in joint venture |  |  |  | 11 | ¥ 75 | $ 12 | ¥ 75 |  |  |
Business combination, deposit, percent of total consideration |  |  |  |  |  | 50.00% |  |  |  |
Goodwill | $ 13 |  |  |  |  |  |  |  |  |
Cash acquired | 5 |  |  |  |  |  |  |  |  |
KEIPER Seating Mechanisms Co., Ltd | YFAT |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Net purchase consideration | $ 23 | ¥ 150 |  |  |  |  |  |  |  |
Asia |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Goodwill |  |  | 1,217 | $ 1,168 |  | $ 1,155 |  |  |  |
Disposed of By Sale | Adient (Langfang) Seating Co., Ltd |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Subsidiary, ownership percentage disposed |  |  |  |  |  |  |  | 51.00% | 51.00% |
Consideration for disposal group |  |  |  |  |  |  |  | $ 6 | ¥ 44 |
Deconsolidated cash |  |  |  |  |  |  |  | 9 |  |
Loss on disposal |  |  | $ 8 |  |  |  |  |  |  |
Disposed of By Sale | Adient (Langfang) Seating Co., Ltd | Asia |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Disposal group, including discontinued operation, goodwill |  |  |  |  |  |  |  | $ 5 |  |
Assets Held for Sale | Adient (Langfang) Seating Co., Ltd |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Subsidiary, ownership percentage disposed |  |  |  |  |  |  |  |  |  | 100.00%
Assets Held for Sale | Entities in China and Properties in U.S. |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Impairment of assets held for sale |  |  |  |  |  | $ 6 |  |  |  |

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