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Goodwill and Other Intangible Assets (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Goodwill and Other Intangible Assets |  |  |
Finite-Lived Intangible Assets, Gross | $ 13,345 | $ 14,299 |
Finite-Lived Intangible Assets, Accumulated Amortization | (7,806) | (7,195) |
Goodwill, Gross | 19,924 | 20,076 |
Goodwill, Impaired, Accumulated Impairment Loss | (9,973) | (9,900) |
Indefinite-lived Intangible Assets (Excluding Goodwill) | 377 | 782 |
Intangible asset impairment charges | 460 | 105 | $ 35
Goodwill (Roll Forward) |  |  |
Goodwill | 9,951 | 10,176 | 7,911
Goodwill, Translation and Purchase Accounting Adjustments | 22 | 66 |
Goodwill, Acquired During Period |  | 2,218 |
Goodwill, Impairment Loss | (73) | 0 | 0
Goodwill, Written off Related to Sale of Business Unit |  | (19) |
Goodwill, Transfers | (175) |  |
Other Intangible Assets (Textuals) [Abstract] |  |  |
Future Amortization Expense, Year One | 689 |  |
Future Amortization Expense, Year Two | 664 |  |
Future Amortization Expense, Year Three | 651 |  |
Future Amortization Expense, Year Four | 613 |  |
Future Amortization Expense, Year Five | 560 |  |
MedSurg [Member] |  |  |
Goodwill (Roll Forward) |  |  |
Goodwill | 2,059 | 2,061 | 2,063
Goodwill, Translation and Purchase Accounting Adjustments | (2) | (1) |
Goodwill, Acquired During Period |  | 0 |
Goodwill, Impairment Loss | 0 |  |
Goodwill, Written off Related to Sale of Business Unit |  | 0 |
Rhythm and Neuro [Member] |  |  |
Goodwill (Roll Forward) |  |  |
Goodwill | 2,194 | 2,192 | 1,924
Goodwill, Translation and Purchase Accounting Adjustments | 3 | 0 |
Goodwill, Acquired During Period |  | 268 |
Goodwill, Impairment Loss | 0 |  |
Goodwill, Written off Related to Sale of Business Unit |  | 0 |
Cardiovascular [Member] |  |  |
Goodwill (Roll Forward) |  |  |
Goodwill | 5,697 | 5,676 | 3,925
Goodwill, Translation and Purchase Accounting Adjustments | 22 | 58 |
Goodwill, Acquired During Period |  | 1,712 |
Goodwill, Impairment Loss | 0 |  |
Goodwill, Written off Related to Sale of Business Unit |  | (19) |
Specialty Pharmaceuticals [Member] |  |  |
Goodwill (Roll Forward) |  |  |
Goodwill | 0 | 247 | $ 0
Goodwill, Translation and Purchase Accounting Adjustments | 0 | 9 |
Goodwill, Acquired During Period |  | 238 |
Goodwill, Impairment Loss | 73 |  |
Goodwill, Written off Related to Sale of Business Unit |  | 0 |
Goodwill, Transfers | (175) |  |
In Process Research and Development [Member] |  |  |
Goodwill and Other Intangible Assets |  |  |
Indefinite-lived Intangible Assets (Excluding Goodwill) | 257 | 662 |
Technology-Based Intangible Assets [Member] |  |  |
Goodwill and Other Intangible Assets |  |  |
Indefinite-lived Intangible Assets (Excluding Goodwill) | 120 | 120 |
Technology-Based Intangible Assets [Member] |  |  |
Goodwill and Other Intangible Assets |  |  |
Finite-Lived Intangible Assets, Gross | 11,059 | 12,020 |
Finite-Lived Intangible Assets, Accumulated Amortization | (6,179) | (5,706) |
Patents [Member] |  |  |
Goodwill and Other Intangible Assets |  |  |
Finite-Lived Intangible Assets, Gross | 511 | 525 |
Finite-Lived Intangible Assets, Accumulated Amortization | (407) | (408) |
Other Intangible Assets [Member] |  |  |
Goodwill and Other Intangible Assets |  |  |
Finite-Lived Intangible Assets, Gross | 1,775 | 1,754 |
Finite-Lived Intangible Assets, Accumulated Amortization | $ (1,220) | $ (1,081) |

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