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Acquisitions and Acquisition-Related Items , Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions | Apr. 28, 2017 | Aug. 23, 2016 | Aug. 05, 2016 | Apr. 29, 2016 | Apr. 24, 2015
--- | --- | --- | --- | --- | ---
Business Acquisition [Line Items] |  |  |  |  |
Goodwill | $ 38,515 |  |  | $ 41,500 | $ 40,530
Total |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Other current assets | 374 |  |  |  |
Property, plant, and equipment | 21 |  |  |  |
Other intangible assets | 857 |  |  |  |
Goodwill | 732 |  |  |  |
Other assets | 71 |  |  |  |
Total assets acquired | 2,055 |  |  |  |
Current liabilities | 153 |  |  |  |
Deferred tax liabilities | 13 |  |  |  |
Long-term debt | 245 |  |  |  |
Other liabilities | 10 |  |  |  |
Total liabilities assumed | 421 |  |  |  |
Net assets acquired | 1,634 |  |  |  |
HeartWare International, Inc. |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Other current assets |  | $ 351 |  |  |
Property, plant, and equipment |  | 14 |  |  |
Other intangible assets |  | 625 |  |  |
Goodwill |  | 427 |  |  |
Other assets |  | 55 |  |  |
Total assets acquired |  | 1,472 |  |  |
Current liabilities |  | 143 |  |  |
Deferred tax liabilities |  | 6 |  |  |
Long-term debt |  | 245 |  |  |
Other liabilities |  | 6 |  |  |
Total liabilities assumed |  | 400 |  |  |
Net assets acquired |  | $ 1,072 |  |  |
Smith & Nephew's Gynecology Business |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Other current assets |  |  | $ 0 |  |
Property, plant, and equipment |  |  | 3 |  |
Other intangible assets |  |  | 167 |  |
Goodwill |  |  | 180 |  |
Other assets |  |  | 0 |  |
Total assets acquired |  |  | 350 |  |
Current liabilities |  |  | 0 |  |
Deferred tax liabilities |  |  | 0 |  |
Long-term debt |  |  | 0 |  |
Other liabilities |  |  | 0 |  |
Total liabilities assumed |  |  | 0 |  |
Net assets acquired |  |  | $ 350 |  |
All Other |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Other current assets | 23 |  |  |  |
Property, plant, and equipment | 4 |  |  |  |
Other intangible assets | 65 |  |  |  |
Goodwill | 125 |  |  |  |
Other assets | 16 |  |  |  |
Total assets acquired | 233 |  |  |  |
Current liabilities | 10 |  |  |  |
Deferred tax liabilities | 7 |  |  |  |
Long-term debt | 0 |  |  |  |
Other liabilities | 4 |  |  |  |
Total liabilities assumed | 21 |  |  |  |
Net assets acquired | $ 212 |  |  |  |

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