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Fair Value Measurements - Pension Plan Assets (Details) - USD ($) $ in Millions | Dec. 29, 2024 | Dec. 31, 2023 | Jan. 01, 2023
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | $ 1,498 | $ 1,551 | $ 1,518
Fair Value, Recurring |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 1,498 | 1,551 |
Fair Value, Recurring | Defined Benefit Plan, Assets Before Unsettled Transactions, Net |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 1,452 | 1,568 |
Fair Value, Recurring | Cash and cash equivalents |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 153 | 176 |
Fair Value, Recurring | Defined Benefit Plan, Equity Securities, US, Health Care |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 1 | 3 |
Fair Value, Recurring | Defined Benefit Plan, Equity Securities, US, Financial Services |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 1 | 10 |
Fair Value, Recurring | Defined Benefit Plan, Equity Securities, US, Retail and Consumer Products |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 1 | 6 |
Fair Value, Recurring | Defined Benefit Plan, Equity Securities, US, Energy |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 1 |
Fair Value, Recurring | Defined Benefit Plan, Equity Securities, US, Information Techology |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 1 | 16 |
Fair Value, Recurring | Defined Benefit Plan, Equity Securities, US, Manufacturing And Industrials |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 1 | 8 |
Fair Value, Recurring | Defined Benefit Plan, Equity Securities, US, Telecommunications |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 1 |
Fair Value, Recurring | International common stock |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 2 | 14 |
Fair Value, Recurring | Corporate debt securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 250 | 253 |
Fair Value, Recurring | US Treasury and Government |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 77 | 171 |
Fair Value, Recurring | Unsettled transactions, net |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 46 | (17) |
Fair Value, Recurring | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 513 | 611 |
Fair Value, Recurring | Level 1 | Cash and cash equivalents |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 153 | 176 |
Fair Value, Recurring | Level 1 | Defined Benefit Plan, Equity Securities, US, Health Care |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 1 | 3 |
Fair Value, Recurring | Level 1 | Defined Benefit Plan, Equity Securities, US, Financial Services |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 2 | 9 |
Fair Value, Recurring | Level 1 | Defined Benefit Plan, Equity Securities, US, Retail and Consumer Products |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 1 | 6 |
Fair Value, Recurring | Level 1 | Defined Benefit Plan, Equity Securities, US, Energy |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 1 |
Fair Value, Recurring | Level 1 | Defined Benefit Plan, Equity Securities, US, Information Techology |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 1 | 16 |
Fair Value, Recurring | Level 1 | Defined Benefit Plan, Equity Securities, US, Manufacturing And Industrials |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 1 | 8 |
Fair Value, Recurring | Level 1 | Defined Benefit Plan, Equity Securities, US, Telecommunications |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 1 |
Fair Value, Recurring | Level 1 | International common stock |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 2 | 14 |
Fair Value, Recurring | Level 1 | Corporate debt securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 248 | 252 |
Fair Value, Recurring | Level 1 | US Treasury and Government |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 105 | 125 |
Fair Value, Recurring | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | (27) | 49 |
Fair Value, Recurring | Level 2 | Cash and cash equivalents |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 2 | Defined Benefit Plan, Equity Securities, US, Health Care |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 2 | Defined Benefit Plan, Equity Securities, US, Financial Services |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | (1) | 1 |
Fair Value, Recurring | Level 2 | Defined Benefit Plan, Equity Securities, US, Retail and Consumer Products |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 2 | Defined Benefit Plan, Equity Securities, US, Energy |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 2 | Defined Benefit Plan, Equity Securities, US, Information Techology |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 2 | Defined Benefit Plan, Equity Securities, US, Manufacturing And Industrials |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 2 | Defined Benefit Plan, Equity Securities, US, Telecommunications |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 2 | International common stock |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 2 | Corporate debt securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 1 | 2 |
Fair Value, Recurring | Level 2 | US Treasury and Government |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | (27) | 46 |
Fair Value, Recurring | Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 3 | Cash and cash equivalents |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 3 | Defined Benefit Plan, Equity Securities, US, Health Care |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 3 | Defined Benefit Plan, Equity Securities, US, Financial Services |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 3 | Defined Benefit Plan, Equity Securities, US, Retail and Consumer Products |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 3 | Defined Benefit Plan, Equity Securities, US, Energy |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 3 | Defined Benefit Plan, Equity Securities, US, Information Techology |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 3 | Defined Benefit Plan, Equity Securities, US, Manufacturing And Industrials |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 3 | Defined Benefit Plan, Equity Securities, US, Telecommunications |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 3 | International common stock |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 3 | Corporate debt securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Level 3 | US Treasury and Government |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 0 | 0 |
Fair Value, Recurring | Fair Value Measured at Net Asset Value Per Share | Global equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 504 | 449 |
Fair Value, Recurring | Fair Value Measured at Net Asset Value Per Share | Corporate debt securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 166 | 157 |
Fair Value, Recurring | Fair Value Measured at Net Asset Value Per Share | Defined Benefit Plan, Diversified Investment Funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | 3 | 4 |
Fair Value, Recurring | Fair Value Measured at Net Asset Value Per Share | Defined Benefit Plan, Limited Partnerships |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets | $ 293 | $ 298 |

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