| Note | Dec. 31, 2024 | Dec. 31, 2025 | |
| € million | € million | ||
| Noncurrent assets | |||
| Goodwill | 13 | 719 | 652 |
| Other intangible assets | 13 | 471 | 432 |
| Property, plant and equipment | 13 | 5,898 | 5,596 |
| Investments accounted for using the equity method | 14 | 269 | 235 |
| Other financial assets | 15 | 107 | 99 |
| Other receivables | 17 | 125 | 236 |
| Deferred taxes | 11 | 276 | 310 |
| 7,865 | 7,560 | ||
| Current assets | |||
| Inventories | 16 | 2,851 | 2,503 |
| Trade accounts receivable | 1,749 | 1,503 | |
| Other financial assets | 15 | 48 | 722 |
| Other receivables | 17 | 517 | 456 |
| Claims for income tax refunds | 11 | 92 | 67 |
| Cash and cash equivalents | 509 | 648 | |
| Assets held for sale | – | 8 | |
| 5,766 | 5,907 | ||
| Total assets | 13,631 | 13,467 | |
| Equity | 18 | ||
| Capital stock of Covestro AG | 189 | 208 | |
| Capital reserves of Covestro AG | 3,740 | 4,893 | |
| Retained earnings incl. total income | 2,171 | 1,679 | |
| Accumulated other comprehensive income | 558 | 218 | |
| Equity attributable to Covestro AG shareholders | 6,658 | 6,998 | |
| Equity attributable to noncontrolling interest | 21 | 18 | |
| 6,679 | 7,016 | ||
| Noncurrent liabilities | |||
| Provisions for pensions and other post-employment benefits | 19 | 387 | 252 |
| Other provisions | 20 | 253 | 351 |
| Financial debt | 21 | 2,444 | 1,668 |
| Other financial liabilities | 22 | 12 | 16 |
| Income tax liabilities | 11 | 49 | 39 |
| Other nonfinancial liabilities | 23 | 27 | 26 |
| Deferred taxes | 11 | 204 | 232 |
| 3,376 | 2,584 | ||
| Current liabilities | |||
| Other provisions | 20 | 348 | 284 |
| Financial debt | 21 | 712 | 1,473 |
| Trade accounts payable | 2,101 | 1,729 | |
| Other financial liabilities | 22 | 133 | 137 |
| Income tax liabilities | 11 | 61 | 52 |
| Other nonfinancial liabilities | 23 | 221 | 192 |
| 3,576 | 3,867 | ||
| Total equity and liabilities | 13,631 | 13,467 | |