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Segment and Geographic Information - Reconciliation of Assets and Depreciation Expense from Segments to Consolidated (Details) - USD ($)
$ in Millions
 12 Months Ended
Apr. 26, 2024
Apr. 28, 2023
Apr. 29, 2022
Segment Reporting Information [Line Items]      
Total Assets $ 89,981 $ 90,948  
Depreciation Expense 954 999 $ 974
Reportable segments      
Segment Reporting Information [Line Items]      
Total Assets 71,980 73,238  
Depreciation Expense 739 759 728
Reportable segments | Cardiovascular      
Segment Reporting Information [Line Items]      
Total Assets 16,128 16,036  
Depreciation Expense 199 209 210
Reportable segments | Neuroscience      
Segment Reporting Information [Line Items]      
Total Assets 18,270 18,346  
Depreciation Expense 252 267 265
Reportable segments | Medical Surgical      
Segment Reporting Information [Line Items]      
Total Assets 33,586 34,926  
Depreciation Expense 194 203 186
Reportable segments | Diabetes      
Segment Reporting Information [Line Items]      
Total Assets 3,996 3,930  
Depreciation Expense 94 80 67
Reportable segments | Other operating segment      
Segment Reporting Information [Line Items]      
Total Assets 547 1,337  
Depreciation Expense 0 2 18
Corporate      
Segment Reporting Information [Line Items]      
Total Assets 17,455 16,373  
Depreciation Expense $ 215 $ 238 $ 228