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Segments of Business and Geographic Areas - Operating Profit by Segment of Business (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2019 | Apr. 01, 2018
Segment Reporting Information [Line Items] |  |
Percentage Change In Sales By Geographic Area | 0.10% |
Sales to customers (Note 9) | $ 20,021 | $ 20,009
Percentage Change in Operating Income Loss | (19.30%) |
Earnings before provision for taxes on income | $ 4,422 | 5,481
In-process research and development | 890 | 0
Restructuring charges | 36 | 42
Unrealized Gain (Loss) on Securities | 100 |
CONSUMER |  |
Segment Reporting Information [Line Items] |  |
Sales to customers (Note 9) | 3,318 | 3,398
PHARMACEUTICAL |  |
Segment Reporting Information [Line Items] |  |
Sales to customers (Note 9) | 10,244 | 9,844
Litigation expense | 300 |
Research and Development Expense | 300 |
Medical Devices |  |
Segment Reporting Information [Line Items] |  |
Sales to customers (Note 9) | 6,459 | 6,767
Restructuring charges | 100 | 100
Litigation expense | 100 |
Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Total Segment Operating Income | $ 4,569 | 5,793
Percentage Change in Operating Income Loss | (21.10%) |
Operating Segments | CONSUMER |  |
Segment Reporting Information [Line Items] |  |
Total Segment Operating Income | $ 741 | 548
Percentage Change in Operating Income Loss | 35.20% |
Amortization | $ 100 | 100
Operating Segments | PHARMACEUTICAL |  |
Segment Reporting Information [Line Items] |  |
Total Segment Operating Income | $ 2,331 | 3,666
Percentage Change in Operating Income Loss | (36.40%) |
Amortization | $ 800 | 800
Operating Segments | Medical Devices |  |
Segment Reporting Information [Line Items] |  |
Total Segment Operating Income | $ 1,497 | 1,579
Percentage Change in Operating Income Loss | (5.20%) |
Amortization | $ 200 | 300
Corporate, Non-Segment |  |
Segment Reporting Information [Line Items] |  |
Total Segment Operating Income | 147 | 312
Ci:z Holdings Co. Ltd. |  |
Segment Reporting Information [Line Items] |  |
Gain on sale of equity investments | $ 300 |
Actelion | PHARMACEUTICAL |  |
Segment Reporting Information [Line Items] |  |
Acquisition related costs |  | 100
United States |  |
Segment Reporting Information [Line Items] |  |
Percentage Change In Sales By Geographic Area | 1.80% |
Sales to customers (Note 9) | $ 10,129 | 9,951
United States | CONSUMER |  |
Segment Reporting Information [Line Items] |  |
Sales to customers (Note 9) | 1,438 | 1,436
United States | PHARMACEUTICAL |  |
Segment Reporting Information [Line Items] |  |
Sales to customers (Note 9) | 5,582 | 5,354
United States | Medical Devices |  |
Segment Reporting Information [Line Items] |  |
Sales to customers (Note 9) | $ 3,109 | 3,161
Europe |  |
Segment Reporting Information [Line Items] |  |
Percentage Change In Sales By Geographic Area | (3.90%) |
Sales to customers (Note 9) | $ 4,609 | 4,797
Western Hemisphere, excluding U.S. |  |
Segment Reporting Information [Line Items] |  |
Percentage Change In Sales By Geographic Area | (4.10%) |
Sales to customers (Note 9) | $ 1,503 | 1,567
Asia-Pacific, Africa |  |
Segment Reporting Information [Line Items] |  |
Percentage Change In Sales By Geographic Area | 2.30% |
Sales to customers (Note 9) | $ 3,780 | $ 3,694

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