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Earnings Per Share (Narrative) (Details)
shares in Millions
3 Months Ended 9 Months Ended
Jun. 28, 2025
shares
Jun. 29, 2024
shares
Jun. 28, 2025
Classes
shares
Jun. 29, 2024
shares
Earnings Per Share, Basic and Diluted [Line Items]        
Number Of Classes Of Common Stock | Classes     2  
Percentage amount of per share cash dividends paid to holders of Class B stock that cannot exceed paid to holders of Class A stock 90.00%   90.00%  
Class A [Member]        
Earnings Per Share, Basic and Diluted [Line Items]        
Undistributed earnings (losses), ratio used to calculate allocation to class of stock     1.0  
Class B [Member]        
Earnings Per Share, Basic and Diluted [Line Items]        
Undistributed earnings (losses), ratio used to calculate allocation to class of stock     0.9  
Share-based Payment Arrangement [Member]        
Earnings Per Share, Basic and Diluted [Line Items]        
Antidilutive securities excluded from computation of earnings per share, shares | shares 6 5 6 7