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Segments of Business and Geographic Areas - Operating Profit by Segment of Business (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 29, 2024 | Oct. 01, 2023 | Sep. 29, 2024 | Oct. 01, 2023
Segment Reporting Information [Line Items] |  |  |  |
Worldwide income (loss) before tax | $ 3,338 | $ 5,217 | $ 12,800 | $ 10,236
Percent Change | (36.00%) |  | 25.00% |
Charge for purchase of in-process research and development assets |  |  | $ 1,252 | 0
Proceeds from Royalties Received | $ 300 |  | 300 |
Restructuring charges | 41 | 158 | 192 | 433
Loss on shares outstanding |  | 600 | 400 |
Yellow Jersey Therapeutics |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Charge for purchase of in-process research and development assets | 1,250 |  | 1,250 |
Baby Powder | Talc |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Loss contingency, loss in period | 2,000 |  | 5,100 | 7,000
Innovative Medicine |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Restructuring charges |  | 100 | 100 | 400
Impairment of intangible assets |  | 200 | 200 | 200
Changes in the fair value of securities gain (loss) |  | (400) |  | (500)
Litigation expense | 400 |  | 400 |
Gain related to litigation settlement |  |  |  | 100
MedTech |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Restructuring charges |  | 200 | 100 | 200
Acquisition related costs | 300 |  | 900 | 100
Gain from divestiture of business |  |  | 200 |
Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total segment operating income | $ 5,541 | 5,979 | $ 18,578 | 18,273
Percent Change | (7.30%) |  | 1.70% |
Restructuring charges | $ 47 | 384 | $ 207 | 659
Operating Segments | Innovative Medicine |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total segment operating income | $ 4,482 | 4,794 | $ 14,910 | 14,008
Percent Change | (6.50%) |  | 6.40% |
Amortization | $ 700 | 700 | $ 2,100 | 2,200
Other cost of operating revenue |  | 100 |  | 700
Restructuring charges | 19 | 149 | 100 | 424
Operating Segments | MedTech |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total segment operating income | $ 1,059 | 1,185 | $ 3,668 | 4,265
Percent Change | (10.60%) |  | (14.00%) |
Amortization | $ 500 | 400 | $ 1,300 | 1,100
Restructuring charges | 28 | 235 | 107 | 235
Corporate, Non-Segment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total segment operating income | $ 2,203 | $ 762 | $ 5,778 | $ 8,037

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