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Goodwill and Other Intangible Assets (Rollforward of Goodwill) (Details) - USD ($) $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 29, 2023 | Dec. 31, 2024
Goodwill [Roll Forward] |  |
Balance at beginning of year | $ 37,276 | $ 41,608
Attributable to acquisitions | 3,851 | 305
Adjustments due to finalization of purchase price allocations | 7 | (23)
Foreign currency translation and other | 474 | (1,393)
Balance at end of year |  | 40,497
Operating segments | Biotechnology |  |
Goodwill [Roll Forward] |  |
Balance at beginning of year | 22,087 | 22,477
Attributable to acquisitions | 0 | 0
Adjustments due to finalization of purchase price allocations | 2 | 0
Foreign currency translation and other | 388 | (1,040)
Balance at end of year |  | 21,437
Operating segments | Life Sciences |  |
Goodwill [Roll Forward] |  |
Balance at beginning of year | 8,314 | 12,221
Attributable to acquisitions | 3,851 | 305
Adjustments due to finalization of purchase price allocations | 5 | (23)
Foreign currency translation and other | 51 | (198)
Balance at end of year |  | 12,305
Operating segments | Diagnostics |  |
Goodwill [Roll Forward] |  |
Balance at beginning of year | 6,875 | 6,910
Attributable to acquisitions | 0 | 0
Adjustments due to finalization of purchase price allocations | 0 | 0
Foreign currency translation and other | $ 35 | (155)
Balance at end of year |  | $ 6,755

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