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Goodwill And Other Intangibles (Schedule Of Change In Carry Amount Of Goodwill By Business Segment) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Sep. 30, 2019 | Sep. 30, 2018
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | $ 6,455 | $ 5,316
Acquisitions | 210 | 1,188
Divestitures | (2) |
Foreign currency translation and other | (127) | (49)
Goodwill, ending balance | 6,536 | 6,455
Automation Solutions [Member] |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | 5,355 | 4,704
Acquisitions | 210 | 696
Divestitures | 0 |
Foreign currency translation and other | (98) | (45)
Goodwill, ending balance | 5,467 | 5,355
Commercial & Residential Solutions [Member] |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | 1,100 | 612
Acquisitions | 0 | 492
Divestitures | (2) |
Foreign currency translation and other | (29) | (4)
Goodwill, ending balance | 1,069 | 1,100
Climate Technologies [Member] |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | 670 | 555
Acquisitions | 0 | 118
Divestitures | 0 |
Foreign currency translation and other | (2) | (3)
Goodwill, ending balance | 668 | 670
Tools & Home Products [Member] |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | 430 | 57
Acquisitions | 0 | 374
Divestitures | (2) |
Foreign currency translation and other | (27) | (1)
Goodwill, ending balance | $ 401 | $ 430

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e961-128460 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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- Definition Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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