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Retirement Benefits (Narrative) (Details)
 12 Months Ended
Jan. 02, 2026
USD ($)
plan
Jan. 03, 2025
USD ($)
Dec. 29, 2023
USD ($)
Defined Benefit Plan Disclosure [Line Items]      
Defined contribution plan expenses $ 148,000,000 $ 131,000,000 $ 119,000,000
Contributions by employer for defined benefit plan 0 61,000,000  
Funded amount 7,000,000 6,000,000  
Employee deferred compensation plan $ 80,000,000 74,000,000  
United States      
Defined Benefit Plan Disclosure [Line Items]      
Number of frozen defined benefit plans | plan 2    
Accumulated benefit obligation $ 54,000,000 55,000,000  
International      
Defined Benefit Plan Disclosure [Line Items]      
Accumulated benefit obligation $ 1,180,000,000 $ 1,115,000,000  
U.K.      
Defined Benefit Plan Disclosure [Line Items]      
Number of frozen defined benefit plans | plan 1    
Number of active defined benefit plans | plan 1    
Germany      
Defined Benefit Plan Disclosure [Line Items]      
Number of frozen defined benefit plans | plan 1