Segment and Geographic Information - Reconciliation of Assets and Depreciation Expense from Segments to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jan. 23, 2026	Jan. 24, 2025	Jan. 23, 2026	Jan. 24, 2025	Apr. 25, 2025
Segment Reporting Information [Line Items]
Total Assets	$ 91,485		$ 91,485		$ 91,680
Depreciation Expense	308	$ 268	878	$ 778
Operating Segments
Segment Reporting Information [Line Items]
Total Assets	72,255		72,255		72,476
Depreciation Expense	240	211	685	610
Operating Segments | Cardiovascular
Segment Reporting Information [Line Items]
Total Assets	16,748		16,748		16,548
Depreciation Expense	66	56	186	167
Operating Segments | Neuroscience
Segment Reporting Information [Line Items]
Total Assets	18,447		18,447		18,476
Depreciation Expense	80	73	235	210
Operating Segments | Medical Surgical
Segment Reporting Information [Line Items]
Total Assets	32,748		32,748		33,317
Depreciation Expense	62	51	169	152
Operating Segments | Diabetes
Segment Reporting Information [Line Items]
Total Assets	4,312		4,312		4,136
Depreciation Expense	32	30	95	81
Operating Segments | Other operating segment
Segment Reporting Information [Line Items]
Total Assets	207		207		296
Depreciation Expense	0	0	0	1
Corporate
Segment Reporting Information [Line Items]
Total Assets	19,023		19,023		$ 18,906
Depreciation Expense	$ 68	$ 57	$ 193	$ 167