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Share Plans (Schedule of Performance Share Unit Activity) (Details) - $ / shares
12 Months Ended
Dec. 31, 2021
Dec. 25, 2020
Dec. 27, 2019
Dec. 28, 2018
Performance Shares        
Performance Share Unit Activity [Roll Forward]        
Beginning balance [1] 0 1,195,505 1,161,529  
Granted     448,363  
Expired/Forfeited [1]   (1,195,505) (414,387)  
Ending balance [1]   0 1,195,505  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]        
Weighted-average grant date fair value, restricted share units   $ 0 $ 23.85 $ 28.61
Weighted-average grant date fair value, granted restricted share units     32.46  
Weighted-average grant date fair value, forfeited restricted share units   $ 23.85 $ 30.54  
Phantom Share Units (PSUs)        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]        
Performance Shares Award, Performance Period 3 years      
[1] The number of shares disclosed within this table are at the target number of 100.0%.