Consolidated and Combined Statements of Changes in Equity - USD ($) $ in Millions	Common Stock [Member]	Berry Net Investment [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) - Currency Translation [Member]	Retained Loss [Member]	Total
Balance at Oct. 02, 2022	$ 0	$ 2,724	$ 0	$ (237)	$ 0	$ 2,487
Net income (loss)	0	38	0	0	0	38
Other comprehensive income (loss)	0	0	0	66	0	66
Transfers to Berry, net	0	(201)	0	0	0	(201)
Balance at Sep. 30, 2023	0	2,561	0	(171)	0	2,390
Net income (loss)	0	(154)	0	0	0	(154)
Other comprehensive income (loss)	0	0	0	3	0	3
Transfers to Berry, net	0	(100)	0	0	0	(100)
Balance at Sep. 28, 2024	0	2,307	0	(168)	0	2,139
Net income (loss)	0	0	0	0	(159)	(159)
Other comprehensive income (loss)	0	0	0	(27)	0	(27)
Transfers to Berry, net	0	(1,111)	0	0	0	(1,111)
October net investment	0	129	0	0	0	129
Distribution of Berry’s net investment	1	(1,325)	1,324	0	0	0
Acquisition of GLT	0	0	74	0	0	74
Share-based compensation	0	0	19	0	0	19
Balance at Sep. 27, 2025	$ 1	$ 0	$ 1,417	$ (195)	$ (159)	$ 1,064