Cover |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Document Information [Line Items] | |
| Document Type | 11-K |
| Entity Registrant Name | Thermo Fisher Scientific Inc. |
| Entity Central Index Key | 0000097745 |
| Amendment Flag | false |
| Document Period End Date | Dec. 31, 2025 |
| Document Fiscal Year Focus | 2025 |
| Document Fiscal Period Focus | FY |
| EBP 001 | |
| Document Information [Line Items] | |
| Document Type | 11-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 31, 2025 |
| Document Fiscal Year Focus | 2025 |
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- Definition This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006. No definition available.
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- Definition For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD. No definition available.
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- Details
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