Restructuring and Transaction Activities, Restructuring Charges by Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Restructuring Charges [Abstract]
Restructuring and transaction activities	$ 4	$ 19	$ 41	$ 55
Consumer Packaging International [Member]
Restructuring Charges [Abstract]
Restructuring and transaction activities	3	14	44	37
Consumer Packaging North America [Member]
Restructuring Charges [Abstract]
Restructuring and transaction activities	0	2	1	6
Health, Hygiene & Specialties [Member]
Restructuring Charges [Abstract]
Restructuring and transaction activities	0	1	0	6
Engineered Materials [Member]
Restructuring Charges [Abstract]
Restructuring and transaction activities	$ 1	$ 2	$ (4)	$ 6