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Segments of Business and Geographic Areas - Income Before Tax by Segment (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 29, 2024 | Dec. 31, 2023 | Jan. 01, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Sales to Customers | $ 88,821 | $ 85,159 | $ 79,990
Cost of products sold | 27,471 | 26,553 | 24,596
Selling, marketing and administrative expenses | 22,869 | 21,512 | 20,246
Research and development expense | 17,232 | 15,085 | 14,135
Other (income) expense, net | (4,694) | (6,634) | (810)
Earnings before provision for taxes on income | 16,687 | 15,062 | 19,359
Less: Expense not allocated to segments | 5,972 | 7,853 | 735
Operating Segments |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Sales to Customers | 88,821 | 85,159 | 79,990
Earnings before provision for taxes on income | 22,659 | 22,915 | 20,094
Innovative Medicine |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Sales to Customers | 56,964 | 54,759 | 52,563
Innovative Medicine | Operating Segments |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Sales to Customers | 56,964 | 54,759 | 52,563
Cost of products sold | 14,036 | 13,715 | 14,066
Selling, marketing and administrative expenses | 10,906 | 9,842 | 9,714
Research and development expense | 13,529 | 11,963 | 11,642
Other (income) expense, net | (426) | 993 | 1,494
Earnings before provision for taxes on income | 18,919 | 18,246 | 15,647
MedTech |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Sales to Customers | 31,857 | 30,400 | 27,427
MedTech | Operating Segments |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Sales to Customers | 31,857 | 30,400 | 27,427
Cost of products sold | 13,345 | 12,722 | 10,397
Selling, marketing and administrative expenses | 10,812 | 10,476 | 9,537
Research and development expense | 3,703 | 3,122 | 2,493
Other (income) expense, net | 257 | (589) | 553
Earnings before provision for taxes on income | $ 3,740 | $ 4,669 | $ 4,447

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