Segment, Geographic and Other Revenue Information - Schedule of Significant Biopharma Segment Expenses (Details) - USD ($) $ in Millions |
12 Months Ended | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Segment Reporting Information [Line Items] | |||||||||||||||||||
| Total revenues | [1] | $ 62,579 | $ 63,627 | $ 59,553 | |||||||||||||||
| Cost of sales | [2],[3] | 16,067 | 17,851 | 24,954 | |||||||||||||||
| Selling, informational and administrative expenses | [2] | 13,794 | 14,730 | 14,771 | |||||||||||||||
| Research and development expenses | [2] | 10,437 | 10,822 | 10,679 | |||||||||||||||
| Acquired in-process research and development expenses | 1,613 | 108 | 194 | ||||||||||||||||
| Other (income)/deductions––net | 6,724 | 4,388 | 222 | ||||||||||||||||
| Income from continuing operations before provision/(benefit) for taxes on income | [4],[5],[6] | 7,520 | 8,023 | 1,058 | |||||||||||||||
| Biopharma [Member] | |||||||||||||||||||
| Segment Reporting Information [Line Items] | |||||||||||||||||||
| Total revenues | 61,199 | 62,400 | 58,237 | ||||||||||||||||
| Cost of sales | 13,505 | 14,997 | 22,666 | ||||||||||||||||
| Selling, informational and administrative expenses | [7] | 9,637 | 10,210 | 10,391 | |||||||||||||||
| Research and development expenses | 9,183 | 9,532 | 9,763 | ||||||||||||||||
| Acquired in-process research and development expenses | 113 | 108 | 194 | ||||||||||||||||
| Other (income)/deductions––net | (581) | (416) | (543) | ||||||||||||||||
| Income from continuing operations before provision/(benefit) for taxes on income | [7] | 29,342 | 27,969 | 15,767 | |||||||||||||||
| Biopharma [Member] | Primary Care [Member] | |||||||||||||||||||
| Segment Reporting Information [Line Items] | |||||||||||||||||||
| Total revenues | 26,820 | 30,135 | 30,799 | ||||||||||||||||
| Biopharma [Member] | Comirnaty [Member] | Primary Care [Member] | |||||||||||||||||||
| Segment Reporting Information [Line Items] | |||||||||||||||||||
| Total revenues | 4,367 | 5,353 | 11,220 | ||||||||||||||||
| Biopharma [Member] | Paxlovid [Member] | Primary Care [Member] | |||||||||||||||||||
| Segment Reporting Information [Line Items] | |||||||||||||||||||
| Total revenues | [8] | 2,362 | 5,716 | 1,279 | |||||||||||||||
| Biopharma [Member] | Excluding Comirnaty and Paxlovid [Member] | Primary Care [Member] | |||||||||||||||||||
| Segment Reporting Information [Line Items] | |||||||||||||||||||
| Total revenues | $ 54,470 | $ 51,331 | $ 45,738 | ||||||||||||||||
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