Segment and Geographic Data, Selected Information by Product Line (Details) - Net Sales [Member] - Product Concentration Risk [Member]	3 Months Ended		9 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Consumer Packaging International [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	100.00%	100.00%	100.00%	100.00%
Consumer Packaging International [Member] | Packaging [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	81.00%	83.00%	80.00%	82.00%
Consumer Packaging International [Member] | Non-packaging [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	19.00%	17.00%	20.00%	18.00%
Consumer Packaging North America [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	100.00%	100.00%	100.00%	100.00%
Consumer Packaging North America [Member] | Rigid Open Top [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	58.00%	54.00%	56.00%	55.00%
Consumer Packaging North America [Member] | Rigid Closed Top [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	42.00%	46.00%	44.00%	45.00%
Health, Hygiene & Specialties [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	100.00%	100.00%	100.00%	100.00%
Health, Hygiene & Specialties [Member] | Health [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	19.00%	19.00%	19.00%	16.00%
Health, Hygiene & Specialties [Member] | Hygiene [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	47.00%	47.00%	46.00%	48.00%
Health, Hygiene & Specialties [Member] | Specialties [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	34.00%	34.00%	35.00%	36.00%
Engineered Materials [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	100.00%	100.00%	100.00%	100.00%
Engineered Materials [Member] | Core Films [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	66.00%	64.00%	63.00%	62.00%
Engineered Materials [Member] | Retail & Industrial [Member]
Selected Information by Product Line [Abstract]
Concentration risk percentage	34.00%	36.00%	37.00%	38.00%