Financial Instruments and Fair Value Measurements, Effect of Derivatives on Consolidated Statements of Income (Details) - Interest Expense, Net [Member] - USD ($) $ in Millions	3 Months Ended
Dec. 28, 2019	Dec. 29, 2018
Cross-Currency Swaps [Member]
Derivative Instruments [Abstract]
Loss (gain) on derivative instruments	$ (2)	$ (4)
Interest Rate Swaps [Member]
Derivative Instruments [Abstract]
Loss (gain) on derivative instruments	$ 17	$ (2)

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959

Name:	us-gaap_DerivativeGainLossOnDerivativeNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration