Segment and Geographic Information - Reconciliation of Assets and Depreciation Expense from Segments to Consolidated (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 25, 2025	Apr. 26, 2024	Apr. 28, 2023
Segment Reporting Information [Line Items]
Total Assets	$ 91,680	$ 89,981
Depreciation Expense	1,054	954	$ 999
Reportable segments
Segment Reporting Information [Line Items]
Total Assets	72,476	71,980
Depreciation Expense	823	739	759
Reportable segments \| Cardiovascular
Segment Reporting Information [Line Items]
Total Assets	16,548	16,128
Depreciation Expense	225	199	209
Reportable segments \| Neuroscience
Segment Reporting Information [Line Items]
Total Assets	18,476	18,270
Depreciation Expense	282	252	267
Reportable segments \| Medical Surgical
Segment Reporting Information [Line Items]
Total Assets	33,317	33,586
Depreciation Expense	205	194	203
Reportable segments \| Diabetes
Segment Reporting Information [Line Items]
Total Assets	4,136	3,996
Depreciation Expense	112	94	80
Reportable segments \| Other operating segment
Segment Reporting Information [Line Items]
Total Assets	296	547
Depreciation Expense	1	0	2
Corporate
Segment Reporting Information [Line Items]
Total Assets	18,906	17,455
Depreciation Expense	$ 229	$ 215	$ 238