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Retirement Benefit Plans - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Apr. 25, 2025 | Apr. 26, 2024 | Apr. 28, 2023
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Cost of retirement benefit plans | $ 466 | $ 451 | $ 494
Net underfunded status of the plans | (440) | (484) |
Incremental expense related to acceptance of voluntary early retirement packages |  |  | 94
Expense under defined contribution plans | 478 | 471 | 390
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 | $ (341) | (357) |
Target allocations | 100.00% |  |
Post-retirement benefit plans, fair value of plan assets | $ 3,610 | 3,551 | 3,398
Employer contributions | 31 | 32 |
Estimated future employer contributions in next fiscal year | 29 |  |
Post-retirement benefit plans, net periodic benefit cost, income | 24 | 22 | (89)
Post-retirement benefit plans, benefit obligations | 3,269 | 3,194 | 3,451
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 | 0 |
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 | $ (27) | (54) |
Post-retirement benefit plans, fair value of plan assets | 1,823 | 1,659 | 1,614
Employer contributions | 45 | 40 |
Estimated future employer contributions in next fiscal year | 55 |  |
Post-retirement benefit plans, net periodic benefit cost, income | (28) | (18) | (26)
Post-retirement benefit plans, benefit obligations | 1,797 | 1,604 | 1,499
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 | $ 48 | 42 |
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 | 35.00% |  |
Pension benefits | Non-U.S. | Other |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Target allocations | 23.00% |  |
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 | $ 303 | 308 |
Post-retirement benefit plans, net periodic benefit cost, income | 16 | 16 | $ 11
Post-retirement benefit plans, benefit obligations | $ 231 | $ 235 |

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- Definition Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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