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Pension and Other Retirement Plans - Net Periodic Cost (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 29, 2024
Dec. 31, 2023
Jan. 01, 2023
Retirement Benefits [Abstract]      
Service cost $ 12 $ 13 $ 23
Interest cost 99 98 77
Expected return on plan assets (107) (107) (128)
Amortization 18 18 22
Net periodic pension cost (benefit) $ 22 $ 22 $ (7)