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Retirement Benefit Plans - Narative (Details) - USD ($)
$ in Millions
 12 Months Ended
Apr. 26, 2024
Apr. 28, 2023
Apr. 29, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Cost of retirement benefit plans $ 451 $ 494 $ 459
Net underfunded status of the plans (484) 103  
Incremental expense related to acceptance of voluntary early retirement packages   94  
Expense under defined contribution plans 471 390 403
Pension benefits | U.S. Pension Benefits      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Net underfunded status of the plans $ (357) 53  
Target allocations 100.00%    
Post-retirement benefit plans, fair value of plan assets $ 3,551 3,398 3,559
Employer contributions 32 22  
Estimated future employer contributions in next fiscal year 30    
Post-retirement benefit plans, net periodic benefit cost, income 22 (89) (39)
Post-retirement benefit plans, benefit obligations 3,194 3,451 3,526
Pension benefits | U.S. Pension Benefits | Level 3      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Post-retirement benefit plans, fair value of plan assets $ 0 992  
Pension benefits | U.S. Pension Benefits | Equity      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Target allocations 34.00%    
Pension benefits | U.S. Pension Benefits | Debt      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Target allocations 51.00%    
Pension benefits | U.S. Pension Benefits | Other      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Target allocations 15.00%    
Pension benefits | Non-U.S.      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Net underfunded status of the plans $ (54) (115)  
Post-retirement benefit plans, fair value of plan assets 1,659 1,614 1,732
Employer contributions 40 57  
Estimated future employer contributions in next fiscal year 45    
Post-retirement benefit plans, net periodic benefit cost, income (18) (26) (37)
Post-retirement benefit plans, benefit obligations 1,604 1,499 1,740
Pension benefits | Non-U.S. | Level 3      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Post-retirement benefit plans, fair value of plan assets $ 42 44  
Pension benefits | Non-U.S. | Equity      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Target allocations 42.00%    
Pension benefits | Non-U.S. | Debt      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Target allocations 34.00%    
Pension benefits | Non-U.S. | Other      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Target allocations 24.00%    
Other post-retirement benefits      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Post-retirement benefit plans, fair value of plan assets $ 308 302  
Post-retirement benefit plans, net periodic benefit cost, income 16 11 $ 20
Post-retirement benefit plans, benefit obligations $ 235 $ 261