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Retirement Benefits (Schedule of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Jan. 02, 2026 | Jan. 03, 2025
United States |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Unrecognized actuarial loss, net of tax of $6 and $238, $6 and $226, respectively | $ 10 | $ 12
Total in accumulated other comprehensive loss | 10 | 12
Unrecognized actuarial loss, tax | 6 | 6
International |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Unrecognized actuarial loss, net of tax of $6 and $238, $6 and $226, respectively | 678 | 643
Total in accumulated other comprehensive loss | 678 | 643
Unrecognized actuarial loss, tax | $ 238 | $ 226

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