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v3.25.2

Dispositions (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Current assets held-for-sale |  | $ 61.0 |  | $ 61.0 |  | $ 58.1
Current liabilities held-for-sale |  | 30.4 |  | 30.4 |  | $ 24.4
Proceeds from Divestiture of Businesses, Net of Cash Divested |  |  |  | 30.1 | $ 0.0 |
Impairment charge |  | 8.0 | $ 0.0 | 8.0 | $ 0.0 |
AAM India Manufacturing Corporation Pvt., Ltd. |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Disposal Group, Including Discontinued Operation, Consideration |  | 65.0 |  | 65.0 |  |
Current assets held-for-sale |  | 61.0 |  | 61.0 |  |
Current liabilities held-for-sale |  | 30.4 |  | 30.4 |  |
Impairment charge |  | $ 8.0 |  | 8.0 |  |
AAM India Manufacturing Corporation Pvt., Ltd. | Subsequent Event |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Disposal Group, Including Discontinued Operation, Consideration | $ 65.0 |  |  |  |  |
Proceeds from Divestiture of Businesses, Net of Cash Divested | $ 58.0 |  |  |  |  |
Hefei AAM Automotive Driveline & Chassis System Co., Ltd. and Liuzhou AAM Automotive Driveline System Co., Ltd. |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Proceeds from Divestiture of Interest in Joint Venture |  |  |  | $ 30.1 |  |

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