Business Segments Information (Financial Information By Geographic Area) (Details) - USD ($) $ in Millions	12 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016
Segment Reporting Information [Line Items]
Property, Plant and Equipment, Total	$ 3,562	$ 3,321
United States
Segment Reporting Information [Line Items]
Net sales	7,939	7,273	$ 6,940
Property, Plant and Equipment	2,027	1,840	1,772
China
Segment Reporting Information [Line Items]
Net sales	1,955	1,540	1,320
Reportable Geographical Components [Member]
Segment Reporting Information [Line Items]
Net sales	17,408	15,264	14,522
Property, Plant and Equipment, Total	3,562	3,321	2,931
Reportable Geographical Components [Member] \| United States And Canada [Member]
Segment Reporting Information [Line Items]
Net sales	8,620	7,854	7,505
Property, Plant and Equipment	2,036	1,852	1,780
Reportable Geographical Components [Member] \| Asia [Member]
Segment Reporting Information [Line Items]
Net sales	3,936	3,253	2,926
Property, Plant and Equipment	547	525	459
Reportable Geographical Components [Member] \| Europe [Member]
Segment Reporting Information [Line Items]
Net sales	2,898	2,434	2,300
Property, Plant and Equipment	676	626	435
Reportable Geographical Components [Member] \| Latin America [Member]
Segment Reporting Information [Line Items]
Net sales	849	767	834
Property, Plant and Equipment	198	203	203
Reportable Geographical Components [Member] \| Middle East/Africa [Member]
Segment Reporting Information [Line Items]
Net sales	1,105	956	957
Property, Plant and Equipment	$ 105	$ 115	$ 54

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (b)
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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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