Derivative Financial Instruments (Pretax Impact Of Undesignated Derivative Instruments On The Consolidated Statements Of Income) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Apr. 03, 2021	Mar. 28, 2020	Apr. 03, 2021	Mar. 28, 2020
Derivative [Line Items]
Cost of Sales	$ 10,047	$ 9,867	$ 19,330	$ 19,242
Other Nonoperating Income (Expense)	(12)	(106)	(31)	(122)
Interest expense	110	119	220	239
Cost of Sales
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(15)	(100)	80	(57)
Not Designated as Hedging Instrument \| Commodity contracts \| Cost of Sales
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(2)	(126)	96	(97)
Not Designated as Hedging Instrument \| Foreign exchange contracts \| Other income/expense
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net	0	(3)	1	1
Fair Value Hedging [Member] \| Commodity contracts \| Cost of Sales
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(13)	31	(15)	47
Cash Flow Hedging [Member] \| Commodity contracts \| Cost of Sales
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net	0	(5)	(1)	(7)
Cash Flow Hedging [Member] \| Interest Rate Contract [Member] \| Interest Expense [Member]
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ (1)	$ (1)	$ (1)	$ (2)

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 924
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856

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-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2(a),(d))
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

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+ References

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=121590274&loc=SL5618551-113959

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No definition available.

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Interest and debt related expenses associated with nonoperating financing activities of the entity.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 20
-Section 50
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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 220
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