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Restructuring - Schedule of Restructuring Reserve (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 29, 2024 | Oct. 01, 2023 | Sep. 29, 2024 | Oct. 01, 2023
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ 41 | $ 158 | $ 192 | $ 433
Operating Segments |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 47 | 384 | 207 | 659
Innovative Medicine |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 100 | 100 | 400
Innovative Medicine | Operating Segments |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 19 | 149 | 100 | 424
MEDTECH |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 200 | 100 | 200
MEDTECH | Operating Segments |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 28 | 235 | 107 | 235
MEDTECH | Restructuring Charges |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 22 | 9 | 92 | 9
MEDTECH | Costs of Goods and Services Sold |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ 6 | $ 226 | $ 15 | $ 226

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