Consolidated and Combined Statements of Operations - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 28, 2026	Mar. 29, 2025	Mar. 28, 2026	Mar. 29, 2025
Consolidated and Combined Statements of Operations [Abstract]
Net sales	$ 796	$ 824	$ 1,588	$ 1,526
Costs and expenses:
Cost of goods sold	701	736	1,396	1,367
Selling, general and administrative	50	47	100	94
Amortization of intangibles	12	14	23	28
Restructuring and other activities	16	23	38	55
Operating income (loss)	17	4	31	(18)
Other (income) expense, net	(1)	5	2	26
Interest expense, net	35	39	75	65
Loss before income taxes	(17)	(40)	(46)	(109)
Income tax expense (benefit)	1	1	6	(8)
Net loss	$ (18)	$ (41)	$ (52)	$ (101)
Net loss per share: Basic (in Dollars per share)	$ (0.5)	$ (1.15)	$ (1.45)	$ (2.85)
Net loss per share: Diluted (in Dollars per share)	$ (0.5)	$ (1.15)	$ (1.45)	$ (2.85)