v3.25.1
Equity (Schedule of Share Repurchases) (Details) - Class A [Member] - USD ($)
shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Mar. 29, 2025
Mar. 30, 2024
Mar. 29, 2025
Mar. 30, 2024
Class of Stock [Line Items]        
Treasury Stock, Shares, Acquired 0.0 0.3 0.3 0.6
Payments for Repurchase of Common Stock $ 1 $ 18 $ 16 $ 31
Under share repurchase program        
Class of Stock [Line Items]        
Treasury Stock, Shares, Acquired 0.0 0.0 0.0 0.0
Payments for Repurchase of Common Stock $ 0 $ 0 $ 0 $ 0
To fund certain obligations under equity compensation plans        
Class of Stock [Line Items]        
Treasury Stock, Shares, Acquired 0.0 0.3 0.3 0.6
Payments for Repurchase of Common Stock $ 1 $ 18 $ 16 $ 31