Dispositions (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020	Sep. 26, 2020
Dispositions [Abstract]
Proceeds from sale of business			$ 165	$ 0
Net sales	$ 3,675	$ 2,910	10,181	$ 8,701
Restructuring and Transaction Activities [Member]
Dispositions [Abstract]
Net pretax loss on divestitures			(22)
U.S. Flexible Packaging Converting Business [Member]
Dispositions [Abstract]
Proceeds from sale of business			140
Net sales					$ 203
Non-core Czech Republic Reaction Injection Molding Business [Member]
Dispositions [Abstract]
Proceeds from sale of business			$ 22
Net sales					$ 41