Restructuring and Transaction Activities, Restructuring Charges by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Restructuring Charges [Abstract]
Restructuring and transaction activities	$ (1)	$ 17
Consumer Packaging International [Member]
Restructuring Charges [Abstract]
Restructuring and transaction activities	3	10
Consumer Packaging North America [Member]
Restructuring Charges [Abstract]
Restructuring and transaction activities	1	2
Engineered Materials [Member]
Restructuring Charges [Abstract]
Restructuring and transaction activities	(5)	3
Health, Hygiene & Specialties [Member]
Restructuring Charges [Abstract]
Restructuring and transaction activities	$ 0	$ 2