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Retirement Benefit Plans (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 27, 2025 | Dec. 28, 2024 | Dec. 30, 2023
Defined Benefit Plan Disclosure [Line Items] |  |  |
Deferred compensation liabilities | $ 3,200 | $ 3,300 |
Projected benefit obligation | $ 2,657 | $ 2,646 | $ 2,825
Discount rate | 4.80% | 4.60% |
Fair value of plan assets | $ 2,198 | $ 2,142 | 2,212
Defined Benefit Plan, Expected Future Benefit Payment [Abstract] |  |  |
2026 | 108 |  |
2027 | 97 |  |
2028 | 99 |  |
2029 | 108 |  |
2030 | 115 |  |
2031-2035 | 668 |  |
Changes in projected benefit obligation for pension benefit plans: |  |  |
Beginning projected benefit obligation | 2,646 | 2,825 |
Service cost | 35 | 33 |
Interest cost | 124 | 122 |
Actuarial (gain) loss | (137) | (40) |
Currency exchange rate changes | 249 | (107) |
Plan curtailments | (12) | (4) |
Plan settlements | (182) | (143) |
Other changes in projected benefit obligation | (66) | (40) |
Ending projected benefit obligation | $ 2,657 | $ 2,646 | 2,825
Defined Benefit Plan Net Periodic Benefit Cost Credit Interest Cost Statement Of Income Or Comprehensive Income Extensible ListNotDisclosedFlag | Interest cost | Interest cost |
Changes in fair value of plan assets for pension benefit plans: |  |  |
Beginning fair value of plan assets | $ 2,142 | $ 2,212 |
Actual return on plan assets | 34 | 121 |
Currency exchange rate changes | 178 | (74) |
Defined Benefit Plan, Plan Assets, Payment for Settlement | (182) | (143) |
Other | 26 | 26 |
Ending fair value of plan assets | 2,198 | 2,142 | $ 2,212
Net unfunded status of pension benefit plans | 459 | 504 |
Amounts recognized in the Consolidated Balance Sheets: |  |  |
Other long-term assets | 217 | 135 |
Current liabilities | 12 | 7 |
Other long-term liabilities | 664 | 632 |
Accumulated other comprehensive loss (income), before tax | 240 | 337 |
Accumulated benefit obligation | $ 2,479 | 2,509 |
Defined Benefit Plan, Additional Information [Abstract] |  |  |
Net Actuarial (Gain) Loss Amortization Percent | 10.00% |  |
Accumulated benefit obligations | $ 2,479 | 2,509 |
Defined Benefit Plan, Funded Status Percentage [Abstract] |  |  |
Defined Benefit Plan, Funded Percentage | 87.00% |  |
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract] |  |  |
Accumulated benefit obligation | $ 888 | 850 |
Plan assets | 366 | 348 |
Defined Benefit Plan, Pension Plan with Project Benefit Obligation in Excess of Plan Assets [Abstract] |  |  |
Projected benefit obligation | 1,042 | 987 |
Plan assets | $ 366 | $ 348 |
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract] |  |  |
Discount rate | 4.80% | 4.60% |
Rate of compensation increase | 3.80% | 3.40% |
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] |  |  |
Discount rate | 4.60% | 4.50% | 4.90%
Expected long-term rate of return on plan assets | 4.80% | 5.10% | 5.00%
Rate of compensation increase | 3.40% | 3.30% | 3.70%
Pension Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | $ 471 | $ 510 |
Changes in fair value of plan assets for pension benefit plans: |  |  |
Beginning fair value of plan assets | 510 |  |
Ending fair value of plan assets | 471 | 510 |
United States |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Contribution Plan, Employer Discretionary Contribution Amount | 347 | 541 | $ 272
Amounts recognized in the Consolidated Balance Sheets: |  |  |
Accumulated benefit obligation | $ 728 | $ 763 |
Projected Benefit Obligations Percentage Split | 30.00% |  |
Fair Value of Plan Assets Percentage Split | 35.00% | 40.00% |
AOCI Percentage Split | 95.00% | 80.00% |
Defined Benefit Plan, Additional Information [Abstract] |  |  |
Accumulated benefit obligations | $ 728 | $ 763 |
United States | Pension Plan |  |  |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] |  |  |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) | 82 | 69 | $ 107
United States | Postretirement Health Coverage |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Projected benefit obligation | $ 505 | $ 493 |
Discount rate | 5.30% | 5.70% |
Fair value of plan assets | $ 549 | $ 542 |
Defined Benefit Plan, Expected Future Benefit Payment [Abstract] |  |  |
2026 | 47 |  |
2027 | 46 |  |
2028 | 46 |  |
2029 | 45 |  |
2030 | 44 |  |
2031-2035 | 208 |  |
Changes in projected benefit obligation for pension benefit plans: |  |  |
Beginning projected benefit obligation | 493 |  |
Ending projected benefit obligation | 505 | 493 |
Changes in fair value of plan assets for pension benefit plans: |  |  |
Beginning fair value of plan assets | 542 |  |
Ending fair value of plan assets | $ 549 | $ 542 |
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract] |  |  |
Discount rate | 5.30% | 5.70% |
Foreign Plan [Member] |  |  |
Amounts recognized in the Consolidated Balance Sheets: |  |  |
Accumulated benefit obligation | $ 1,800 | $ 1,700 |
Projected Benefit Obligations Percentage Split | 70.00% |  |
Fair Value of Plan Assets Percentage Split | 65.00% | 60.00% |
AOCI Percentage Split | 5.00% | 20.00% |
Defined Benefit Plan, Additional Information [Abstract] |  |  |
Accumulated benefit obligations | $ 1,800 | $ 1,700 |
Equity Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 259 | 344 |
Changes in fair value of plan assets for pension benefit plans: |  |  |
Beginning fair value of plan assets | 344 |  |
Ending fair value of plan assets | $ 259 | $ 344 |
Equity Securities | United States |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Target Plan Asset Allocations (percent) | 10.00% |  |
Equity Securities | United States | Postretirement Health Coverage |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Target Plan Asset Allocations (percent) | 50.00% |  |
Equity Securities | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Target Plan Asset Allocations (percent) | 30.00% | 35.00% |
Fixed income |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | $ 212 | $ 166 |
Changes in fair value of plan assets for pension benefit plans: |  |  |
Beginning fair value of plan assets | 166 |  |
Ending fair value of plan assets | $ 212 | $ 166 |
Fixed income | United States |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Target Plan Asset Allocations (percent) | 90.00% |  |
Fixed income | United States | Postretirement Health Coverage |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Target Plan Asset Allocations (percent) | 50.00% |  |
Fixed income | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Target Plan Asset Allocations (percent) | 60.00% | 50.00% |
Assets measured at net asset value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | $ 1,712 | $ 1,618 |
Changes in fair value of plan assets for pension benefit plans: |  |  |
Beginning fair value of plan assets | 1,618 |  |
Ending fair value of plan assets | 1,712 | 1,618 |
Cash and Cash Equivalents |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 15 | 14 |
Changes in fair value of plan assets for pension benefit plans: |  |  |
Beginning fair value of plan assets | 14 |  |
Ending fair value of plan assets | $ 15 | $ 14 |
Hedge Funds | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Target Plan Asset Allocations (percent) | 10.00% | 15.00% |
Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | $ 0 | $ 0 |
Changes in fair value of plan assets for pension benefit plans: |  |  |
Beginning fair value of plan assets | 0 |  |
Ending fair value of plan assets | 0 | 0 |
Level 1 | Equity Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 0 |
Changes in fair value of plan assets for pension benefit plans: |  |  |
Beginning fair value of plan assets | 0 |  |
Ending fair value of plan assets | 0 | 0 |
Level 1 | Fixed income |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 0 |
Changes in fair value of plan assets for pension benefit plans: |  |  |
Beginning fair value of plan assets | 0 |  |
Ending fair value of plan assets | 0 | 0 |
Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 443 | 486 |
Changes in fair value of plan assets for pension benefit plans: |  |  |
Beginning fair value of plan assets | 486 |  |
Ending fair value of plan assets | 443 | 486 |
Level 2 | Equity Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 259 | 344 |
Changes in fair value of plan assets for pension benefit plans: |  |  |
Beginning fair value of plan assets | 344 |  |
Ending fair value of plan assets | 259 | 344 |
Level 2 | Fixed income |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 184 | 142 |
Changes in fair value of plan assets for pension benefit plans: |  |  |
Beginning fair value of plan assets | 142 |  |
Ending fair value of plan assets | 184 | 142 |
Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 28 | 24 |
Changes in fair value of plan assets for pension benefit plans: |  |  |
Beginning fair value of plan assets | 24 |  |
Ending fair value of plan assets | 28 | 24 |
Level 3 | Equity Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 0 |
Changes in fair value of plan assets for pension benefit plans: |  |  |
Beginning fair value of plan assets | 0 |  |
Ending fair value of plan assets | 0 | 0 |
Level 3 | Fixed income |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 28 | 24 |
Changes in fair value of plan assets for pension benefit plans: |  |  |
Beginning fair value of plan assets | 24 |  |
Ending fair value of plan assets | $ 28 | $ 24 |

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