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Segments of Business and Geographic Areas - Operating Profit by Segment of Business (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 29, 2019 | Sep. 30, 2018 | Sep. 29, 2019 | Sep. 30, 2018
Segment Reporting Information [Line Items] |  |  |  |
Percentage Change In Sales By Geographic Area | 1.90% |  | 0.20% |
Sales to customers | $ 20,729 | $ 20,348 | $ 61,312 | $ 61,187
Percentage Change in Operating Income Loss | (62.80%) |  | (11.90%) |
Earnings before provision for taxes on income | $ 1,647 | 4,423 | $ 13,110 | 14,877
In-process research and development | 0 | 1,126 | 890 | 1,126
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability |  |  | (129) | 162
Restructuring charges | 69 | 88 | 162 | 187
CONSUMER |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales to customers | 3,469 | 3,415 | 10,331 | 10,317
Restructuring charges |  |  | 100 |
Litigation expense |  |  | 200 |
PHARMACEUTICAL |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales to customers | 10,877 | 10,346 | 31,650 | 30,544
In-process research and development |  | 1,100 | 900 | 1,100
Restructuring charges |  |  | 100 |
Litigation expense | 4,000 |  | 4,300 |
Research and Development Expense |  |  | 300 |
Medical Devices |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales to customers | 6,383 | 6,587 | 19,331 | 20,326
Restructuring charges | 100 | 200 | 200 | 400
Litigation expense |  |  | 300 | 700
Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total Segment Operating Income | $ 1,823 | 4,653 | $ 13,664 | 15,722
Percentage Change in Operating Income Loss | (60.80%) |  | (13.10%) |
Operating Segments | CONSUMER |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total Segment Operating Income | $ 653 | 510 | $ 1,800 | 1,887
Percentage Change in Operating Income Loss | 28.00% |  | (4.60%) |
Amortization | $ 100 | 100 | $ 300 | 200
Gain (Loss) on Disposition of Assets |  |  |  | 300
Operating Segments | PHARMACEUTICAL |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total Segment Operating Income | (222) | 2,876 | $ 5,786 | 10,193
Percentage Change in Operating Income Loss |  |  | (43.20%) |
Amortization | 800 | 700 | $ 2,400 | 2,300
Gain (Loss) on Disposition of Assets |  |  |  | 100
Unrealized Gain (Loss) on Securities | (100) |  | 200 |
Operating Segments | Medical Devices |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total Segment Operating Income | $ 1,392 | 1,267 | $ 6,078 | 3,642
Percentage Change in Operating Income Loss | 9.90% |  | 66.90% |
Amortization | $ 200 | 300 | $ 700 | 800
Corporate, Non-Segment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total Segment Operating Income | $ 176 | 230 | 554 | 845
Ci:z Holdings Co. Ltd. | CONSUMER |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Gain on sale of equity investments |  |  | 300 |
Actelion | PHARMACEUTICAL |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Acquisition related costs |  |  | $ 100 | 200
XO1 [Member] | PHARMACEUTICAL |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability |  | 200 |  | (200)
United States |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percentage Change In Sales By Geographic Area | 1.20% |  | 0.20% |
Sales to customers | $ 10,791 | 10,664 | $ 31,323 | 31,255
United States | CONSUMER |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales to customers | 1,394 | 1,370 | 4,369 | 4,282
United States | PHARMACEUTICAL |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales to customers | 6,340 | 6,097 | 17,705 | 17,350
United States | Medical Devices |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales to customers | $ 3,057 | 3,197 | $ 9,249 | 9,623
Europe |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percentage Change In Sales By Geographic Area | 1.00% |  | (1.60%) |
Sales to customers | $ 4,461 | 4,416 | $ 13,803 | 14,023
Western Hemisphere, excluding U.S. |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percentage Change In Sales By Geographic Area | (4.00%) |  | (4.50%) |
Sales to customers | $ 1,488 | 1,550 | $ 4,446 | 4,657
Asia-Pacific, Africa |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percentage Change In Sales By Geographic Area | 7.30% |  | 4.30% |
Sales to customers | $ 3,989 | $ 3,718 | $ 11,740 | $ 11,252
ADVANCED | Operating Segments | Medical Devices |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Gain (Loss) on Disposition of Business |  |  | $ 2,000 |

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