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Segments of Business and Geographic Areas - Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 02, 2016 | Sep. 27, 2015 | Oct. 02, 2016 | Sep. 27, 2015
Sales by geographic area |  |  |  |
Sales | $ 17,820 | $ 17,102 | $ 53,784 | $ 52,263
Percentage Change In Sales By Geographic Area | 4.20% |  | 2.90% |
UNITED STATES |  |  |  |
Sales by geographic area |  |  |  |
Sales | $ 9,381 | 8,791 | $ 28,274 | 26,394
Percentage Change In Sales By Geographic Area | 6.70% |  | 7.10% |
Europe |  |  |  |
Sales by geographic area |  |  |  |
Sales | $ 3,832 | 3,802 | $ 11,769 | 11,993
Percentage Change In Sales By Geographic Area | 0.80% |  | (1.90%) |
Western Hemisphere, excluding U.S. |  |  |  |
Sales by geographic area |  |  |  |
Sales | $ 1,396 | 1,463 | $ 4,269 | 4,603
Percentage Change In Sales By Geographic Area | (4.60%) |  | (7.30%) |
Asia-Pacific, Africa |  |  |  |
Sales by geographic area |  |  |  |
Sales | $ 3,211 | 3,046 | $ 9,472 | 9,273
Percentage Change In Sales By Geographic Area | 5.40% |  | 2.10% |
Medical Devices [Member] |  |  |  |
Sales by geographic area |  |  |  |
Sales | $ 6,159 | 6,094 | $ 18,677 | 18,710
Medical Devices [Member] | UNITED STATES |  |  |  |
Sales by geographic area |  |  |  |
Sales | $ 3,048 | $ 3,005 | $ 9,118 | $ 8,980

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