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Segment and Geographic Information (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Jul. 28, 2017 | Jul. 29, 2016
Segment Reporting Information [Line Items] |  |
Net sales | $ 7,390 | $ 7,166
Income before Income Taxes by Reportable Segment |  |
Restructuring charges, net | (8) | (94)
Acquisition-related items | (44) | (52)
Divestiture-related items | (47) | 0
Certain litigation charges | 0 | (82)
Amortization of intangible assets | (454) | (487)
Interest expense, net | (194) | (179)
Income from operations before income taxes | 1,195 | 988
Americas |  |
Segment Reporting Information [Line Items] |  |
Net sales | 4,367 | 4,297
U.S. |  |
Segment Reporting Information [Line Items] |  |
Net sales | 4,000 | 4,000
EMEA |  |
Segment Reporting Information [Line Items] |  |
Net sales | 1,732 | 1,650
Asia-Pacific |  |
Segment Reporting Information [Line Items] |  |
Net sales | 857 | 822
Greater China |  |
Segment Reporting Information [Line Items] |  |
Net sales | 434 | 397
Operating Segments |  |
Income before Income Taxes by Reportable Segment |  |
Income from operations before income taxes | 2,678 | 2,606
Segment Reconciling Items |  |
Income before Income Taxes by Reportable Segment |  |
Restructuring charges, net | (14) | (104)
Acquisition-related items | (53) | (52)
Divestiture-related items | (48) | 0
Certain litigation charges | 0 | (82)
Amortization of intangible assets | (454) | (487)
Centralized distribution costs | (442) | (401)
Interest expense, net | (194) | (179)
Corporate, Non-Segment |  |
Income before Income Taxes by Reportable Segment |  |
Corporate | (278) | (313)
Cardiac and Vascular Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | 2,646 | 2,518
Cardiac and Vascular Group | Operating Segments |  |
Income before Income Taxes by Reportable Segment |  |
Income from operations before income taxes | 1,011 | 954
Minimally Invasive Therapies Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | 2,486 | 2,424
Minimally Invasive Therapies Group | Operating Segments |  |
Income before Income Taxes by Reportable Segment |  |
Income from operations before income taxes | 875 | 824
Restorative Therapies Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | 1,809 | 1,772
Restorative Therapies Group | Operating Segments |  |
Income before Income Taxes by Reportable Segment |  |
Income from operations before income taxes | 680 | 669
Diabetes Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | 449 | 452
Diabetes Group | Operating Segments |  |
Income before Income Taxes by Reportable Segment |  |
Income from operations before income taxes | $ 112 | $ 159

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