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v3.25.2

Pension, Retiree Medical and Savings Plans (Categorized Plan Assets Measured at Fair Value) (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 28, 2024 | Dec. 30, 2023 | Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items] |  |  |
Maximum Real estate notice period | 90 days |  |
Minimum Real estate notice period | 30 days |  |
Cash Collateral for Borrowed Securities | $ 447 |  |
US Plan Assets [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 10,772 | $ 11,724 |
Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 3,397 | 3,528 | $ 3,195
Domestic Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 10,609 | 11,541 | 11,148
Securities Loaned | 630 |  |
Postretirement Health Coverage [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | $ 163 | $ 183 | $ 196
Defined Benefit Plan, Equity Securities, Large Cap [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Representation of one fund in total U.S. plan assets | 12.00% | 13.00% |
Fixed Income Commingled funds [Member] | Level 1 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | $ 557 | $ 526 |
Mortgage-backed Securities, Issued by Private Enterprises [Member] | Level 2 | Domestic Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 125 | 133 |
US Government Agencies Debt Securities [Member] | Level 2 | Domestic Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 1,538 | 1,812 |
Corporate Bonds [Member] | Level 2 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 469 | 267 |
Corporate Bonds [Member] | Level 2 | Domestic Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 3,903 | 4,233 |
Government Securities | Level 2 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | $ 932 | $ 1,207 |
Corporate Bonds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Percentage | 31.00% | 31.00% |
Contracts With Insurance Companies | Level 3 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | $ 29 | $ 30 |
Contracts With Insurance Companies | Level 3 | Domestic Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 1 | 1 |
Cash And Cash Equivalents | Level 1 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 128 | 143 |
Cash And Cash Equivalents | Level 1 | Domestic Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 456 | 3 |
Cash And Cash Equivalents | Level 2 | Domestic Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 276 | 346 |
Cash And Cash Equivalents | Fair Value, Inputs, Level 1, 2 and 3 | Domestic Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 732 | 349 |
Real Estate Funds [Member] | Fair Value Measured at Net Asset Value Per Share | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 79 | 162 |
Real Estate Funds [Member] | Fair Value Measured at Net Asset Value Per Share | Domestic Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 561 | 411 |
Dividends And Interest Receivable | Fair Value Measured at Net Asset Value Per Share | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 31 | 18 |
Dividends And Interest Receivable | Fair Value Measured at Net Asset Value Per Share | Domestic Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | (358) | 87 |
Equity Securities [Member] | Level 1 | Domestic Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 4,270 | 4,698 |
Equity Securities [Member] | Fair Value, Inputs, Level 1, 2 and 3 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 1,172 | 1,175 |
Sub-Total U.S. Plan Assets | Fair Value, Inputs, Level 1, 2 and 3 | Domestic Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 10,569 | 11,226 |
Sub-Total International Plan Assets | Fair Value, Inputs, Level 1, 2 and 3 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Amount | $ 3,287 | $ 3,348 |

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