Income Taxes, Net Deferred Income Tax Liability (Details) - USD ($) $ in Millions	Sep. 28, 2019	Sep. 29, 2018
Deferred Tax Assets [Abstract]
Allowance for doubtful accounts	$ 3	$ 4
Deferred gain on sale-leaseback	5	6
Accrued liabilities and reserves	64	28
Inventories	9	9
Net operating loss carryforward	348	212
Interest expense carryforward	35	0
Alternative minimum tax (AMT) credit carryforward	0	8
Research and development credit carryforward	12	13
Federal and state tax credits	11	10
Other	40	19
Total deferred tax assets	527	309
Valuation allowance	(141)	(93)
Total deferred tax assets, net of valuation allowance	386	216
Deferred Tax Liabilities [Abstract]
Property, plant and equipment	487	239
Intangible assets	597	306
Other	63	5
Total deferred tax liabilities	1,147	550
Net deferred tax liability	(761)	(334)
Net deferred tax assets	42
Net deferred tax liabilities	$ 803	$ 365