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Shareholders' Equity (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 29, 2023
Dec. 31, 2021
Class of Stock    
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Other Nonoperating Income (Expense) Other Nonoperating Income (Expense)
Pension settlement losses $ 42 $ 12
Cumulative Preferred Stock    
Class of Stock    
Preferred stock authorized (in shares) 22,549  
Preferred stock par value (in dollars per share) $ 100  
Preferred Stock    
Class of Stock    
Preferred stock authorized (in shares) 3,000,000  
Preferred stock par value (in dollars per share) $ 1