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Acquisitions (Allocation Of The Preliminary Purchase Price To The Acquired Net Assets (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2019
Goodwill | $ 8,563 | $ 8,704
K2M |  |
Accounts receivable | 58 |
Inventory | 131 |
Other assets | 122 |
Contingent consideration | 0 |
Other liabilities | (247) |
Goodwill | 794 |
Assets and liabilities acquired, net | $ 1,380 |
Weighted-average life of intangible assets | 14 years |
K2M | Customer relationship |  |
Intangible assets acquired | $ 34 |
K2M | Distributor relationship |  |
Intangible assets acquired | 1 |
K2M | Trade name |  |
Intangible assets acquired | 10 |
K2M | Developed technology and patents |  |
Intangible assets acquired | 475 |
K2M | Internally developed software |  |
Intangible assets acquired | 2 |
Entellus |  |
Accounts receivable | 17 |
Inventory | 14 |
Other assets | 62 |
Contingent consideration | (79) |
Other liabilities | (76) |
Goodwill | 465 |
Assets and liabilities acquired, net | $ 697 |
Weighted-average life of intangible assets | 16 years |
Entellus | Customer relationship |  |
Intangible assets acquired | $ 33 |
Entellus | Distributor relationship |  |
Intangible assets acquired | 0 |
Entellus | Trade name |  |
Intangible assets acquired | 0 |
Entellus | Developed technology and patents |  |
Intangible assets acquired | 261 |
Entellus | Internally developed software |  |
Intangible assets acquired | $ 0 |

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