| Line Item | Jun 30, 2026 | Mar 31, 2026 | Dec 31, 2025 | Sep 30, 2025 | Jun 30, 2025 | Mar 31, 2025 | Dec 31, 2024 | Sep 30, 2024 | Jun 30, 2024 | Mar 31, 2024 | Dec 31, 2023 | Sep 30, 2023 | Jun 30, 2023 | Mar 31, 2023 | Dec 31, 2022 | Sep 30, 2022 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Revenues and other: | ||||||||||||||||
| Sales | ||||||||||||||||
| Other income (expense), net | ||||||||||||||||
| Total revenues, net of other expenses | ||||||||||||||||
| Costs and expenses: | ||||||||||||||||
| Selling, general and administrative | ||||||||||||||||
| Research and development | ||||||||||||||||
| Amortization of identifiable intangibles | ||||||||||||||||
| Pension and postretirement benefits | ||||||||||||||||
| Interest expense | ||||||||||||||||
| Asset impairments and costs associated with exit and disposal activities, net of adjustments | ||||||||||||||||
| Total | ||||||||||||||||
| Income (loss) from continuing operations before income taxes | ||||||||||||||||
| Income tax expense (benefit) | ||||||||||||||||
| Net income (loss) from continuing operations | ||||||||||||||||
| Net income (loss) | ||||||||||||||||
| Basic earnings (loss) per share (in dollars per share) | — | |||||||||||||||
| Diluted earnings (loss) per share (in dollars per share) | — |