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Segments of Business and Geographic Areas - Operating Profit by Segment of Business (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Apr. 01, 2018 | Apr. 02, 2017
Segment Reporting Information [Line Items] |  |
Percentage Change in Operating Income Loss | (1.70%) |
Restructuring charges | $ 42 | $ 85
Medical Devices |  |
Segment Reporting Information [Line Items] |  |
Restructuring charges | 100 | 200
Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Total Segment Operating Income | $ 5,793 | 5,822
Percentage Change in Operating Income Loss | (0.50%) |
Operating Segments | CONSUMER |  |
Segment Reporting Information [Line Items] |  |
Total Segment Operating Income | $ 548 | 596
Percentage Change in Operating Income Loss | (8.10%) |
Amortization | $ 100 | 100
Operating Segments | PHARMACEUTICAL |  |
Segment Reporting Information [Line Items] |  |
Total Segment Operating Income | $ 3,666 | 3,663
Percentage Change in Operating Income Loss | 0.10% |
Amortization | $ 800 | 100
Gain on sale of equity investments |  | 200
Operating Segments | Medical Devices |  |
Segment Reporting Information [Line Items] |  |
Total Segment Operating Income | $ 1,579 | 1,563
Percentage Change in Operating Income Loss | 1.00% |
Amortization | $ 300 | 200
Corporate, Non-Segment |  |
Segment Reporting Information [Line Items] |  |
Total Segment Operating Income | 312 | $ 247
Actelion |  |
Segment Reporting Information [Line Items] |  |
Business Combination, Acquisition Related Costs | 100 |
Actelion | PHARMACEUTICAL |  |
Segment Reporting Information [Line Items] |  |
Business Combination, Acquisition Related Costs | $ 100 |

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