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Revenue - Disaggregation of Net Sales by Segment and Division (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 26, 2024	Apr. 28, 2023	Apr. 29, 2022
Disaggregation of Revenue [Line Items]
Net sales	$ 32,364	$ 31,227	$ 31,686
Reportable segment net sales
Disaggregation of Revenue [Line Items]
Net sales	32,142	30,731	30,959
Cardiovascular
Disaggregation of Revenue [Line Items]
Net sales	11,831	11,522	11,368
Cardiovascular | Cardiac Rhythm & Heart Failure
Disaggregation of Revenue [Line Items]
Net sales	5,995	5,783	5,852
Cardiovascular | Structural Heart & Aortic
Disaggregation of Revenue [Line Items]
Net sales	3,358	3,363	3,055
Cardiovascular | Coronary & Peripheral Vascular
Disaggregation of Revenue [Line Items]
Net sales	2,478	2,375	2,460
Neuroscience
Disaggregation of Revenue [Line Items]
Net sales	9,406	8,959	8,784
Neuroscience | Cranial & Spinal Technologies
Disaggregation of Revenue [Line Items]
Net sales	4,756	4,451	4,456
Neuroscience | Specialty Therapies
Disaggregation of Revenue [Line Items]
Net sales	2,905	2,815	2,592
Neuroscience | Neuromodulation
Disaggregation of Revenue [Line Items]
Net sales	1,746	1,693	1,735
Medical Surgical
Disaggregation of Revenue [Line Items]
Net sales	8,417	7,989	8,469
Medical Surgical | Surgical & Endoscopy
Disaggregation of Revenue [Line Items]
Net sales	6,508	6,152	6,543
Medical Surgical | Acute Care & Monitoring
Disaggregation of Revenue [Line Items]
Net sales	1,908	1,837	1,926
Diabetes
Disaggregation of Revenue [Line Items]
Net sales	2,488	2,262	2,338
Other operating segment
Disaggregation of Revenue [Line Items]
Net sales	$ 221	$ 495	$ 727

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