Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 28, 2025	Dec. 29, 2024	Sep. 27, 2026
Income Taxes
Effective income tax rate (benefit)	15.00%	13.00%
Income Tax Expense	$ 543	$ 455
Internal Revenue Service (IRS)
Income Taxes
Income Tax Expense		$ 107
Forecast
Income Taxes
Effective income tax rate (benefit)			15.00%
Forecast | FDDEI effective Tax Rate
Income Taxes
Effective income tax rate (benefit)			13.00%
Forecast | Corporate alternative minimum tax
Income Taxes
Effective income tax rate (benefit)			15.00%