The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Name:	us-gaap_RetainedEarningsAccumulatedDeficit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Significant Accounting Policies Recently Adopted Accounting Pronouncements (Details) - USD ($) $ in Millions	Sep. 26, 2021	Sep. 27, 2020	Oct. 01, 2018
New Accounting Pronouncements or Change in Accounting Principle
Retained earnings	$ 9,822	$ 5,284
Accounting Standards Update 2016-16 [Member]
New Accounting Pronouncements or Change in Accounting Principle
Retained earnings			$ 2,600