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Acquisitions and Acquisition-Related Items - Narrative (Details) - USD ($) $ in Millions |  | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Aug. 23, 2016 | Jul. 28, 2017 | Jul. 29, 2016 | Apr. 28, 2017 | Aug. 31, 2016 | Apr. 29, 2016
Business Acquisition [Line Items] |  |  |  |  |  |
Goodwill |  | $ 39,196 |  | $ 38,515 |  |
Cost of products sold |  | 2,349 | $ 2,261 |  |  |
Acquisition-related items |  | 44 | 52 |  |  |
Fair value of contingent consideration |  | 242 | 379 | 246 |  | $ 377
Other liabilities |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Fair value of contingent consideration |  | 173 |  | 180 |  |
Other accrued expenses |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Fair value of contingent consideration |  | 69 |  | $ 66 |  |
Heartware International, Inc. |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquisition consideration | $ 1,100 |  |  |  |  |
Other intangible assets | 625 |  |  |  |  |
Goodwill | 481 |  |  |  |  |
Long-term debt | 245 |  |  |  |  |
Debt redeemed |  |  |  |  | $ 203 |
Heartware International, Inc. | Bank borrowings | Debt due December 2017 |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Long-term debt |  | 42 |  |  |  |
Heartware International, Inc. | Customer-related and technology-related |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Other intangible assets | $ 602 |  |  |  |  |
Estimated useful lives | 15 years |  |  |  |  |
Heartware International, Inc. | Tradenames |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Other intangible assets | $ 23 |  |  |  |  |
Estimated useful lives | 5 years |  |  |  |  |
Business acquisitions |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquisition-related items and other |  | 53 |  |  |  |
Cost of products sold |  | 9 |  |  |  |
Acquisition-related items |  | $ 46 | 52 |  |  |
Integration costs |  |  | 44 |  |  |
Accelerated and incremental stock compensation expense |  |  | $ 8 |  |  |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e1043-128460 + Details
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