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Segment and Geographic Information (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 28, 2017 USD ($) | Jan. 27, 2017 USD ($) | Oct. 28, 2016 USD ($) | Jul. 29, 2016 USD ($) | Apr. 29, 2016 USD ($) | Jan. 29, 2016 USD ($) | Oct. 30, 2015 USD ($) | Jul. 31, 2015 USD ($) | Apr. 28, 2017 USD ($) subsegment | Apr. 29, 2016 USD ($) | Apr. 24, 2015 USD ($)
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Total | $ 7,916,000,000 | $ 7,283,000,000 | $ 7,345,000,000 | $ 7,166,000,000 | $ 7,567,000,000 | $ 6,934,000,000 | $ 7,058,000,000 | $ 7,274,000,000 | $ 29,710,000,000 | $ 28,833,000,000 | $ 20,261,000,000
Special charge (gain), net |  |  |  |  |  |  |  |  | (100,000,000) | (70,000,000) | 38,000,000
Certain litigation charges |  |  |  |  |  |  |  |  | (300,000,000) | (26,000,000) | (42,000,000)
Acquisition-related items |  |  |  |  |  |  |  |  | (220,000,000) | (283,000,000) | (550,000,000)
Amortization of intangible assets |  |  |  |  |  |  |  |  | (1,980,000,000) | (1,931,000,000) | (733,000,000)
Centralized distribution costs |  |  |  |  |  |  |  |  | (1,543,000,000) | (1,177,000,000) | (794,000,000)
Income before provision for income taxes |  |  |  |  |  |  |  |  | 4,602,000,000 | 4,336,000,000 | 3,486,000,000
Total Assets | 99,816,000,000 |  |  |  | 99,644,000,000 |  |  |  | 99,816,000,000 | 99,644,000,000 |
Property, plant, and equipment, net | 4,361,000,000 |  |  |  | 4,841,000,000 |  |  |  | 4,361,000,000 | 4,841,000,000 |
Americas |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  | 17,939,000,000 | 17,578,000,000 | 12,125,000,000
Property, plant, and equipment, net | 3,270,000,000 |  |  |  | 3,728,000,000 |  |  |  | 3,270,000,000 | 3,728,000,000 |
U.S. |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  | 16,700,000,000 | 16,400,000,000 | 11,300,000,000
Property, plant, and equipment, net | 2,500,000,000 |  |  |  | 3,300,000,000 |  |  |  | 2,500,000,000 | 3,300,000,000 |
EMEA |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  | 6,739,000,000 | 6,700,000,000 | 5,064,000,000
Property, plant, and equipment, net | 709,000,000 |  |  |  | 708,000,000 |  |  |  | 709,000,000 | 708,000,000 |
Asia Pacific |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  | 3,443,000,000 | 3,060,000,000 | 2,059,000,000
Property, plant, and equipment, net | 192,000,000 |  |  |  | 220,000,000 |  |  |  | 192,000,000 | 220,000,000 |
Greater China |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  | 1,589,000,000 | 1,495,000,000 | 1,013,000,000
Property, plant, and equipment, net | 190,000,000 |  |  |  | 185,000,000 |  |  |  | 190,000,000 | 185,000,000 |
Ireland |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Property, plant, and equipment, net | 171,000,000 |  |  |  | 169,000,000 |  |  |  | $ 171,000,000 | 169,000,000 |
Cardiac and Vascular Group |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Number of divisions | subsegment |  |  |  |  |  |  |  |  | 3 |  |
Minimally Invasive Therapies Group |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Number of divisions | subsegment |  |  |  |  |  |  |  |  | 2 |  |
Restorative Therapies Group |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Number of divisions | subsegment |  |  |  |  |  |  |  |  | 4 |  |
Reportable segments |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Reportable segments' EBITA before other adjustments |  |  |  |  |  |  |  |  | $ 11,126,000,000 | 10,697,000,000 | 7,719,000,000
Total Assets | 82,523,000,000 |  |  |  | 82,946,000,000 |  |  |  | 82,523,000,000 | 82,946,000,000 |
Reportable segments | Cardiac and Vascular Group |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  | 10,498,000,000 | 10,196,000,000 | 9,361,000,000
Reportable segments' EBITA before other adjustments |  |  |  |  |  |  |  |  | 4,134,000,000 | 3,986,000,000 | 3,836,000,000
Total Assets | 15,192,000,000 |  |  |  | 13,563,000,000 |  |  |  | 15,192,000,000 | 13,563,000,000 |
Reportable segments | Minimally Invasive Therapies Group |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  | 9,919,000,000 | 9,563,000,000 | 2,387,000,000
Reportable segments' EBITA before other adjustments |  |  |  |  |  |  |  |  | 3,434,000,000 | 3,373,000,000 | 775,000,000
Total Assets | 49,249,000,000 |  |  |  | 52,227,000,000 |  |  |  | 49,249,000,000 | 52,227,000,000 |
Reportable segments | Restorative Therapies Group |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  | 7,366,000,000 | 7,210,000,000 | 6,751,000,000
Reportable segments' EBITA before other adjustments |  |  |  |  |  |  |  |  | 2,868,000,000 | 2,671,000,000 | 2,445,000,000
Total Assets | 15,441,000,000 |  |  |  | 14,564,000,000 |  |  |  | 15,441,000,000 | 14,564,000,000 |
Reportable segments | Diabetes Group |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  | 1,927,000,000 | 1,864,000,000 | 1,762,000,000
Reportable segments' EBITA before other adjustments |  |  |  |  |  |  |  |  | 690,000,000 | 667,000,000 | 663,000,000
Total Assets | 2,641,000,000 |  |  |  | 2,592,000,000 |  |  |  | 2,641,000,000 | 2,592,000,000 |
Segment reconciling items |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Impact of inventory step-up |  |  |  |  |  |  |  |  | (38,000,000) | (226,000,000) | (623,000,000)
Impact of product technology upgrade commitment |  |  |  |  |  |  |  |  | 0 | 0 | (74,000,000)
Special charge (gain), net |  |  |  |  |  |  |  |  | (100,000,000) | (70,000,000) | 38,000,000
Restructuring charges, net |  |  |  |  |  |  |  |  | (373,000,000) | (299,000,000) | (252,000,000)
Certain litigation charges |  |  |  |  |  |  |  |  | (300,000,000) | (26,000,000) | (42,000,000)
Acquisition-related items |  |  |  |  |  |  |  |  | (230,000,000) | (283,000,000) | (550,000,000)
Interest expense, net |  |  |  |  |  |  |  |  | (728,000,000) | (955,000,000) | (280,000,000)
Corporate |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Corporate |  |  |  |  |  |  |  |  | (1,232,000,000) | (1,394,000,000) | $ (923,000,000)
Total Assets | 17,293,000,000 |  |  |  | 16,698,000,000 |  |  |  | 17,293,000,000 | 16,698,000,000 |
Disposal Group, Held-for-sale, Not Discontinued Operations | Patient Care, Deep Vein Thrombosis, and Nutritional Insufficiency Business |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Assets held for sale | $ 6,290,000,000 |  |  |  | $ 0 |  |  |  | $ 6,290,000,000 | $ 0 |

X
- 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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