Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 30, 2023
Income Taxes [Abstract]
U.S. income (loss) from continuing operations before income taxes	$ (186)	$ 18	$ 15
Non-U.S. income (loss) from continuing operations before income taxes	20	(153)	57
Income taxes paid	22	9	$ 29
Net deferred tax liabilities	46	78
Valuation allowance	199	36
Unrecognized tax benefits that would affect effective tax rate if recognized	45
Interest and penalties accrued for uncertain tax positions	11
Other Assets [Member]
Income Taxes [Abstract]
Net deferred tax assets	$ 76	$ 57