Restructuring and Transaction Activities, Restructuring Charges by Segment (Details) $ in Millions	12 Months Ended
	Sep. 30, 2023 USD ($) Segment	Oct. 01, 2022 USD ($) Facility	Oct. 02, 2021 USD ($) Facility
Restructuring Charges [Abstract]
Number of reporting segments | Segment	4
Estimated cost of plant rationalizations	$ 200
Number of facilities shut down | Facility		0	0
Restructuring and transaction activities	102	$ 23	$ 51
Consumer Packaging International [Member]
Restructuring Charges [Abstract]
Restructuring and transaction activities	50	10	56
Consumer Packaging North America [Member]
Restructuring Charges [Abstract]
Restructuring and transaction activities	23	5	0
Engineered Materials [Member]
Restructuring Charges [Abstract]
Restructuring and transaction activities	7	2	(4)
Health, Hygiene & Specialties [Member]
Restructuring Charges [Abstract]
Restructuring and transaction activities	$ 22	$ 6	$ (1)