Revenue - Disaggregation of Net Sales by Market Geography for Each Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Jul. 29, 2022	Jul. 30, 2021
Disaggregation of Revenue [Line Items]
Net sales	$ 7,371	$ 7,987
U.S.
Disaggregation of Revenue [Line Items]
Net sales	3,766	4,101
Non-U.S. Developed Markets
Disaggregation of Revenue [Line Items]
Net sales	2,328	2,601
Emerging Markets
Disaggregation of Revenue [Line Items]
Net sales	1,276	1,286
Cardiovascular
Disaggregation of Revenue [Line Items]
Net sales	2,713	2,890
Cardiovascular | U.S.
Disaggregation of Revenue [Line Items]
Net sales	1,298	1,420
Cardiovascular | Non-U.S. Developed Markets
Disaggregation of Revenue [Line Items]
Net sales	892	1,003
Cardiovascular | Emerging Markets
Disaggregation of Revenue [Line Items]
Net sales	523	467
Medical Surgical
Disaggregation of Revenue [Line Items]
Net sales	2,001	2,322
Medical Surgical | U.S.
Disaggregation of Revenue [Line Items]
Net sales	843	990
Medical Surgical | Non-U.S. Developed Markets
Disaggregation of Revenue [Line Items]
Net sales	767	869
Medical Surgical | Emerging Markets
Disaggregation of Revenue [Line Items]
Net sales	392	463
Neuroscience
Disaggregation of Revenue [Line Items]
Net sales	2,115	2,204
Neuroscience | U.S.
Disaggregation of Revenue [Line Items]
Net sales	1,419	1,446
Neuroscience | Non-U.S. Developed Markets
Disaggregation of Revenue [Line Items]
Net sales	407	465
Neuroscience | Emerging Markets
Disaggregation of Revenue [Line Items]
Net sales	290	293
Diabetes
Disaggregation of Revenue [Line Items]
Net sales	541	572
Diabetes | U.S.
Disaggregation of Revenue [Line Items]
Net sales	206	245
Diabetes | Non-U.S. Developed Markets
Disaggregation of Revenue [Line Items]
Net sales	264	263
Diabetes | Emerging Markets
Disaggregation of Revenue [Line Items]
Net sales	$ 72	$ 63