Acquisitions and Dispositions, RPC Group Plc (Details) $ in Millions		1 Months Ended	3 Months Ended		9 Months Ended
		Jul. 31, 2019 USD ($)	Jun. 27, 2020 USD ($) Site Country	Jun. 29, 2019 USD ($)	Jun. 27, 2020 USD ($) Site Country	Jun. 29, 2019 USD ($)
RPC Group Plc [Abstract]
Net sales			$ 2,910	$ 1,937	$ 8,701	$ 5,859
Operating income			$ 347	215	$ 830	576
First Priority Senior Secured Notes due 2026 [Member]
RPC Group Plc [Abstract]
Face amount of debt issued		$ 1,250
Second Priority Senior Secured Notes due 2027 [Member]
RPC Group Plc [Abstract]
Face amount of debt issued		500
RPC [Member]
RPC Group Plc [Abstract]
Number of operating sites | Site			189		189
Number of countries where operating sites are located | Country			34		34
Net sales			$ 1,092		$ 3,346
Operating income			111		245
Remeasurement Adjustments [Abstract]
Working capital					70
Property, plant and equipment					(224)
Deferred tax liabilities					(67)
Noncontrolling interest					22
Consideration [Abstract]
Cash consideration transferred		$ 6,084
Identifiable Assets Acquired and Liabilities Assumed [Abstract]
Working capital	[1]		770		770
Property, plant and equipment			2,151		2,151
Identifiable intangible assets			1,670		1,670
Other assets			2		2
Other long-term liabilities			(859)		(859)
Goodwill			2,372		2,372
Net assets acquired and liabilities assumed			6,106		6,106
Noncontrolling interest			(22)		(22)
Total consideration transferred			6,084		6,084
Step up of inventory to fair value			58		58
Pro Forma Information [Abstract]
Pro forma net sales				3,300		9,600
Pro forma net income				$ 38		$ 217
RPC [Member] | Customer Relationships [Member]
Remeasurement Adjustments [Abstract]
Intangible assets					(135)
RPC [Member] | Trade Names [Member]
Remeasurement Adjustments [Abstract]
Intangible assets					93
RPC [Member] | Consumer Packaging International [Member]
RPC Group Plc [Abstract]
Net sales			968		2,972
Operating income			$ 90		$ 196

[1] Includes a $58 million step up of inventory to fair value