Segment and Geographic Data, Selected Information by Product Line (Details) - Net Sales [Member] - Product Concentration Risk [Member]	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Consumer Packaging International [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	100.00%	100.00%
Consumer Packaging International [Member] | Packaging [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	81.00%	82.00%
Consumer Packaging International [Member] | Non-packaging [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	19.00%	18.00%
Consumer Packaging North America [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	100.00%	100.00%
Consumer Packaging North America [Member] | Rigid Open Top [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	55.00%	57.00%
Consumer Packaging North America [Member] | Rigid Closed Top [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	45.00%	43.00%
Engineered Materials [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	100.00%	100.00%
Engineered Materials [Member] | Core Films [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	58.00%	59.00%
Engineered Materials [Member] | Retail & Industrial [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	42.00%	41.00%
Health, Hygiene & Specialties [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	100.00%	100.00%
Health, Hygiene & Specialties [Member] | Health [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	19.00%	14.00%
Health, Hygiene & Specialties [Member] | Hygiene [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	46.00%	49.00%
Health, Hygiene & Specialties [Member] | Specialties [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	35.00%	37.00%