Derivative Financial Instruments (Pretax Impact Of Cash Flow Hedge Derivative Instruments On The Consolidated Statements Of Income) (Details) - Cash Flow Hedging [Member] - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Mar. 28, 2020	Mar. 30, 2019	Mar. 28, 2020	Mar. 30, 2019
Derivative [Line Items]
Gain/(Loss) Recognized in OCI on Derivatives	$ (12)	$ (10)	$ (12)	$ (30)
Commodity contracts
Derivative [Line Items]
Gain/(Loss) Recognized in OCI on Derivatives	(11)	(5)	(11)	(7)
Interest rate hedges
Derivative [Line Items]
Gain/(Loss) Recognized in OCI on Derivatives	$ (1)	$ (5)	$ (1)	$ (23)

Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e637-108580

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=109978405&loc=d3e80720-113993

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580

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