Stock Purchase and Award Plans - Stock-based Compensation Expense (Details) - USD ($) $ in Millions	12 Months Ended
Apr. 25, 2025	Apr. 26, 2024	Apr. 28, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 429	$ 393	$ 355
Income tax benefits	(70)	(64)	(60)
Total stock-based compensation expense, net of tax	358	329	295
Cost of products sold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	46	35	36
Research and development expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	52	47	39
Selling, general, and administrative expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	331	310	280
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	66	76	77
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	216	184	166
Performance share units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	111	97	74
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 35	$ 36	$ 38

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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