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Intangible assets and goodwill (Tables) | 9 Months Ended
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Sep. 28, 2025
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets and Goodwill |
(Dollars in Millions) | September 28, 2025 |  | December 29, 2024
Intangible assets with definite lives: |  |  |
Patents and trademarks — gross | $54,026 |  | 44,695
Less accumulated amortization | (31,339) |  | (26,124)
Patents and trademarks — net | $22,687 |  | 18,571
Customer relationships and other intangibles — gross | 21,179 |  | 20,310
Less accumulated amortization | (14,710) |  | (13,544)
Customer relationships and other intangibles — net(1) | $6,469 |  | 6,766
Intangible assets with indefinite lives: |  |  |
Purchased in-process research and development | 19,581 |  | 12,281
Total intangible assets — net | $48,737 |  | 37,618
(1)The majority is comprised of customer relationships
Goodwill | Goodwill as of September 28, 2025 was allocated by segment of business as follows:
(Dollars in Millions) |  |  | Innovative Medicine |  | MedTech |  | Total
Goodwill at December 29, 2024 |  |  | $10,692 |  | 33,508 |  | 44,200
Goodwill, related to acquisitions |  |  | 2,846 |  | — |  | 2,846
Goodwill, related to divestitures |  |  | — |  | (29) |  | (29)
Currency translation/Other |  |  | 730 |  | 301 |  | 1,031
Goodwill at September 28, 2025 |  |  | $14,268 |  | 33,780 |  | 48,048
Intangible Asset Amortization Expense | The estimated amortization expense for approved products, before tax, for the five succeeding years is approximately:
(Dollars in Millions) |  |  |  |  |  |
2025 |  | 2026 |  | 2027 |  | 2028 |  | 2029
$4,500 |  | 4,000 |  | 3,300 |  | 2,600 |  | 2,500

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