Intangible assets and goodwill - Goodwill (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 28, 2025 |
Dec. 29, 2024 |
|
| Goodwill [Roll Forward] | ||
| Goodwill beginning of period | $ 44,200 | $ 36,558 |
| Goodwill, related to acquisitions | 3,488 | 8,209 |
| Goodwill, related to divestitures | (29) | (56) |
| Currency translation/other | 1,113 | (511) |
| Goodwill end of period | 48,772 | 44,200 |
| Innovative Medicine | ||
| Goodwill [Roll Forward] | ||
| Goodwill beginning of period | 10,692 | 10,407 |
| Goodwill, related to acquisitions | 3,488 | 640 |
| Goodwill, related to divestitures | 0 | 0 |
| Currency translation/other | 787 | (355) |
| Goodwill end of period | 14,967 | 10,692 |
| MedTech | ||
| Goodwill [Roll Forward] | ||
| Goodwill beginning of period | 33,508 | 26,151 |
| Goodwill, related to acquisitions | 0 | 7,569 |
| Goodwill, related to divestitures | (29) | (56) |
| Currency translation/other | 326 | (156) |
| Goodwill end of period | $ 33,805 | $ 33,508 |
| X | ||||||||||
- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) of asset representing future economic benefit from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized, classified as other. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Amount of divestiture of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|