Consolidated and Combined Statements of Operations - USD ($) $ in Millions	12 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 30, 2023
Consolidated and Combined Statements of Operations [Abstract]
Net sales	$ 3,204	$ 2,187	$ 2,275
Costs and expenses:
Cost of goods sold	2,867	1,950	1,995
Selling, general and administrative	190	107	110
Amortization of intangibles	50	48	51
Goodwill and other impairment	0	172	0
Restructuring and other activities	89	30	24
Corporate expense allocation	3	21	26
Operating income (loss)	5	(141)	69
Other expense (income), net	30	(9)	(3)
Interest expense, net	141	3	0
Income (loss) before income taxes	(166)	(135)	72
Income tax expense (benefit)	(7)	19	34
Net income (loss)	$ (159)	$ (154)	$ 38
Net income (loss) per share: Basic (in Dollars per share)	$ (4.47)	$ (4.84)	$ 1.19
Net income (loss) per share: diluted (in Dollars per share)	$ (4.47)	$ (4.84)	$ 1.19