Goodwill and Intangible Assets - Goodwill (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
|
| Goodwill and Intangible Assets | ||
| Goodwill | $ 23,195 | $ 23,254 |
| Decrease in goodwill due to foreign currency translation adjustments | 103 | 440 |
| Established Pharmaceutical Products | ||
| Goodwill and Intangible Assets | ||
| Goodwill | 3,000 | |
| Nutritional Products | ||
| Goodwill and Intangible Assets | ||
| Goodwill | 286 | |
| Diagnostic Products | ||
| Goodwill and Intangible Assets | ||
| Goodwill | 3,700 | |
| Medical Devices | ||
| Goodwill and Intangible Assets | ||
| Goodwill | $ 16,100 | |
| St Jude Medical Inc and Alere Inc. | ||
| Goodwill and Intangible Assets | ||
| Decrease in goodwill due to purchase price accounting adjustments | $ 326 | |