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Acquisitions (Details) £ / shares in Units, $ / shares in Units, £ in Millions, $ in Millions |  |  |  | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Aug. 19, 2019 USD ($) | Aug. 19, 2019 GBP (£) £ / shares | Jun. 11, 2019 USD ($) | Jan. 29, 2019 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($) | Dec. 31, 2019 USD ($) | Aug. 19, 2019 $ / shares
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability |  |  |  |  | $ 214 |  | $ 354 |
Goodwill |  |  |  |  | 10,137 |  | 10,176 |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High |  |  |  |  | 627 |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  | 3 | $ 4,382 |  |
Specialty Pharmaceuticals [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Goodwill |  |  |  |  | 241 |  | $ 247 |
BTG Acquisition [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Business Acquisition, Share Price | (per share) |  | £ 8.40 |  |  |  |  |  | $ 10.20
Payments to Acquire Businesses, Gross | $ 4,023 | £ 3,312 |  |  |  |  |  |
Cash Acquired from Acquisition | $ 404 |  |  |  |  |  |  |
Goodwill |  |  |  |  | 1,644 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables |  |  |  |  | 108 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory |  |  |  |  | 232 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets |  |  |  |  | 252 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  |  |  |  | 1,785 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  |  |  |  | 537 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities |  |  |  |  | (308) |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities |  |  |  |  | (274) |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities |  |  |  |  | (358) |  |  |
Business Combination, Consideration Transferred, Including Equity Interest in Acquiree Held Prior to Combination |  |  |  |  | 3,619 |  |  |
BTG Acquisition [Member] | Global Peripheral Interventions (PI) Reporting Unit [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Goodwill |  |  |  |  | 1,406 |  |  |
BTG Acquisition [Member] | Specialty Pharmaceuticals [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Goodwill |  |  |  |  | 238 |  |  |
BTG Acquisition [Member] | Technology-Based Intangible Assets [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  |  |  |  | $ 1,709 |  |  |
BTG Acquisition [Member] | Technology-Based Intangible Assets [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Discount Rate, Fair Value Input |  |  |  |  | 11.00% |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  |  | 10 years |  |  |
BTG Acquisition [Member] | Technology-Based Intangible Assets [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Discount Rate, Fair Value Input |  |  |  |  | 12.00% |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  |  | 18 years |  |  |
BTG Acquisition [Member] | Other Intangible Assets [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  |  |  |  | $ 75 |  |  |
BTG Acquisition [Member] | Other Intangible Assets [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  |  | 2 years |  |  |
BTG Acquisition [Member] | Other Intangible Assets [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  |  | 11 years |  |  |
BTG Acquisition [Member] | Other Intangible Assets [Member] | Weighted Average [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Discount Rate, Fair Value Input |  |  |  |  | 11.00% |  |  |
Vertiflex, Inc. [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross |  |  | $ 465 |  |  |  |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low |  |  | 0 |  |  |  |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High |  |  | $ 100 |  |  |  |  |
Millipede, Inc. [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross |  |  |  | $ 325 |  |  |  |
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage |  |  |  | 20.00% |  |  |  |
Business Combination, Consideration Transferred |  |  |  | $ 90 |  |  |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High |  |  |  | $ 125 |  |  |  |
2019 Acquisitions (Vertiflex and Millipede) [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability |  |  |  |  | $ 127 |  |  |
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value |  |  |  |  | 102 |  |  |
Goodwill |  |  |  |  | 577 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  |  |  |  | 220 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets |  |  |  |  | 240 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets |  |  |  |  | 24 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities |  |  |  |  | (12) |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities |  |  |  |  | (58) |  |  |
Business Combination, Consideration Transferred, Including Equity Interest in Acquiree Held Prior to Combination |  |  |  |  | 992 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  |  |  |  | 461 |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  | 763 |  |  |
2019 Acquisitions (Vertiflex and Millipede) [Member] | In Process Research and Development [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets |  |  |  |  | $ 240 |  |  |
2019 Acquisitions (Vertiflex and Millipede) [Member] | In Process Research and Development [Member] | Weighted Average [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Discount Rate, Fair Value Input |  |  |  |  | 19.00% |  |  |
2019 Acquisitions (Vertiflex and Millipede) [Member] | Technology-Based Intangible Assets [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  |  |  |  | $ 210 |  |  |
2019 Acquisitions (Vertiflex and Millipede) [Member] | Technology-Based Intangible Assets [Member] | Weighted Average [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Discount Rate, Fair Value Input |  |  |  |  | 15.00% |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  |  | 12 years |  |  |
2019 Acquisitions (Vertiflex and Millipede) [Member] | Other Intangible Assets [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  |  |  |  | $ 10 |  |  |
2019 Acquisitions (Vertiflex and Millipede) [Member] | Other Intangible Assets [Member] | Weighted Average [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Discount Rate, Fair Value Input |  |  |  |  | 15.00% |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  |  | 12 years |  |  |

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