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Pension and Other Retirement Plans - Funded Status (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 29, 2024
Dec. 31, 2023
Jan. 01, 2023
Defined Benefit Plan Disclosure [Line Items]      
Benefit obligation at beginning of year $ 1,829 $ 1,815  
Service cost 12 13 $ 23
Interest cost 99 98 77
Benefits paid (116) (118)  
Unrecognized actuarial loss (24) 21  
Benefit obligation at end of year 1,799 1,829 1,815
Change in plan assets:      
Fair value of plan assets at beginning of year 1,551 1,518  
Actual return on plan assets 6 129  
Employer contributions 56 22  
Benefits paid (116) (118)  
Fair value of plan assets at end of year 1,498 1,551 $ 1,518
Funded status 302 278  
Amounts recognized in the consolidated balance sheets:      
Net long-term pension obligation 279 255  
Accrued expenses and other current liabilities 23 22  
Net long-term pension obligation 302 278  
Nonqualified Plan      
Change in plan assets:      
Fair value of plan assets at beginning of year 128    
Fair value of plan assets at end of year $ 141 $ 128