Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Segment and Geographic Data, Selected Information by Reportable Segment (Details) $ in Millions	3 Months Ended								12 Months Ended
	Sep. 28, 2019 USD ($)	Jun. 29, 2019 USD ($)	Mar. 30, 2019 USD ($)	Dec. 29, 2018 USD ($)	Sep. 29, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 30, 2017 USD ($)	Sep. 28, 2019 USD ($) Segment	Sep. 29, 2018 USD ($)	Sep. 30, 2017 USD ($)
Segment and Geographic Data [Abstract]
Number of reportable segments \| Segment									4
Selected Information by Reportable Segment [Abstract]
Net sales	$ 3,019	$ 1,937	$ 1,950	$ 1,972	$ 2,054	$ 2,072	$ 1,967	$ 1,776	$ 8,878	$ 7,869	$ 7,095
Operating income									974	761	732
Depreciation and amortization									613	538	521
Total assets	16,469				9,131				16,469	9,131
Consumer Packaging North America [Member]
Selected Information by Reportable Segment [Abstract]
Net sales										15	12
Engineered Materials [Member]
Selected Information by Reportable Segment [Abstract]
Net sales										10
Health, Hygiene & Specialties [Member]
Selected Information by Reportable Segment [Abstract]
Net sales										30	5
Operating Segment [Member] \| Consumer Packaging International [Member]
Selected Information by Reportable Segment [Abstract]
Net sales									1,229	215	200
Operating income									12	17	23
Depreciation and amortization									93	15	14
Total assets	7,085				203				7,085	203
Operating Segment [Member] \| Consumer Packaging North America [Member]
Selected Information by Reportable Segment [Abstract]
Net sales									2,636	2,463	2,351
Operating income									234	190	200
Depreciation and amortization									216	229	231
Total assets	4,243				3,220				4,243	3,220
Operating Segment [Member] \| Engineered Materials [Member]
Selected Information by Reportable Segment [Abstract]
Net sales									2,538	2,633	2,337
Operating income									318	365	311
Depreciation and amortization									116	108	101
Total assets	1,862				1,968				1,862	1,968
Operating Segment [Member] \| Health, Hygiene & Specialties [Member]
Selected Information by Reportable Segment [Abstract]
Net sales									2,475	2,558	2,207
Operating income									410	189	198
Depreciation and amortization									188	186	$ 175
Total assets	$ 3,279				$ 3,740				$ 3,279	$ 3,740