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Common Stock - Common Stock and Treasury Stock Activity (Detail) - shares
 12 Months Ended
Dec. 27, 2025
Dec. 28, 2024
Common shares    
Balance at the beginning of the year 123,637,515 126,287,327
Stock plan shares issued 464,410 783,060
Shares surrendered by optionees (131,485) (181,045)
Common stock repurchases (4,014,193) (3,251,827)
Balance at the end of the year 119,956,247 123,637,515
Treasury shares    
Balance at the beginning of the year 64,281,743 60,848,871
Stock plan shares issued 0 0
Shares surrendered by optionees 131,485 181,045
Common stock repurchases 4,014,193 3,251,827
Balance at the end of the year 68,427,421 64,281,743