Corporate Expense Allocation (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 29, 2025	Mar. 30, 2024	Mar. 29, 2025	Mar. 30, 2024
Corporate Expense Allocations [Line Items]
Corporate expense allocation	$ 0	$ 5	$ 3	$ 9
Treasure Holdco, Inc.
Corporate Expense Allocations [Line Items]
Corporate expense allocation			$ 3	$ 9