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Retirement Plans | 3 Months Ended
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Dec. 31, 2025
Retirement Benefits [Abstract] |
Retirement Plans |
12. Retirement Plans
Adient maintains non-contributory defined benefit pension plans covering primarily non-U.S. employees and a limited number of U.S. employees. The following table contains the components of net periodic benefit cost:
|  | Three Months Ended December 31, |  |
(in millions) |  | 2025 |  | 2024 |  |  |  |
Service cost |  | $ | 2 |  |  | $ | 1 |  |  |  |  |
Interest cost |  | 4 |  |  | 4 |  |  |  |  |
Expected return on plan assets |  | (3) |  |  | (3) |  |  |  |  |
Net periodic benefit cost |  | $ | 3 |  |  | $ | 2 |  |  |  |  |
The interest cost, expected return on plan assets, and net actuarial and settlement/curtailment (gain) loss components of net periodic benefit cost are included in other pension expense in the consolidated statements of income (loss).

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