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Segment and Geographic Information (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 30, 2015 | Oct. 24, 2014 | Oct. 30, 2015 | Oct. 24, 2014
Segment Reporting Information [Line Items] |  |  |  |
Net sales | $ 7,058 | $ 4,366 | $ 14,332 | $ 8,639
Income before Income Taxes by Reportable Segment |  |  |  |
Special charges | 0 | (100) | 0 | (100)
Restructuring charges, net | (73) | 0 | (140) | (30)
Certain litigation charges | (26) | 0 | (26) | 0
Acquisition-related items | (49) | (61) | (120) | (102)
Interest expense, net | (217) | (8) | (408) | (13)
Income from operations before income taxes | 1,083 | 1,022 | 2,023 | 2,105
Americas [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 4,390 | 2,643 | 8,835 | 5,133
U.S. [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 4,098 | 2,456 | 8,240 | 4,789
EMEA [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 1,567 | 1,069 | 3,236 | 2,202
Asia Pacific [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 736 | 433 | 1,506 | 866
Greater China [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 365 | 221 | 755 | 438
Operating Segments [Member] |  |  |  |
Income before Income Taxes by Reportable Segment |  |  |  |
Income from operations before income taxes | 1,708 | 1,257 | 3,458 | 2,499
Segment Reconciling Items [Member] |  |  |  |
Income before Income Taxes by Reportable Segment |  |  |  |
Special charges | 0 | (100) | 0 | (100)
Impact of inventory step-up | 0 | 0 | (226) | 0
Restructuring charges, net | (73) | 0 | (140) | (30)
Certain litigation charges | (26) | 0 | (26) | 0
Acquisition-related items | (49) | (61) | (120) | (102)
Interest expense, net | (217) | (8) | (408) | (13)
Corporate, Non-Segment [Member] |  |  |  |
Income before Income Taxes by Reportable Segment |  |  |  |
Corporate | (260) | (66) | (515) | (149)
Cardiac and Vascular Group [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 2,482 | 2,286 | 5,050 | 4,540
Cardiac and Vascular Group [Member] | Operating Segments [Member] |  |  |  |
Income before Income Taxes by Reportable Segment |  |  |  |
Income from operations before income taxes | 755 | 714 | 1,572 | 1,426
Minimally Invasive Therapies Group [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 2,356 | 0 | 4,812 | 0
Minimally Invasive Therapies Group [Member] | Operating Segments [Member] |  |  |  |
Income before Income Taxes by Reportable Segment |  |  |  |
Income from operations before income taxes | 348 | 0 | 682 | 0
Restorative Therapies Group [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 1,770 | 1,650 | 3,576 | 3,253
Restorative Therapies Group [Member] | Operating Segments [Member] |  |  |  |
Income before Income Taxes by Reportable Segment |  |  |  |
Income from operations before income taxes | 483 | 426 | 964 | 836
Diabetes Group [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 450 | 430 | 894 | 846
Diabetes Group [Member] | Operating Segments [Member] |  |  |  |
Income before Income Taxes by Reportable Segment |  |  |  |
Income from operations before income taxes | $ 122 | $ 117 | $ 240 | $ 237

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- Definition The following items are included within acquisition-related items: The change in the fair value of the contingent milestone consideration for the reporting period, certain-related acquisition costs, such as banker fees, legal fees, severance, and other professional fees, and impairment losses of recently acquired in-process research and development (IPR&D). + References No definition available. + Details
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