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Goodwill and Other Intangible Assets (Tables) | 3 Months Ended
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Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract] |
Changes in Carrying Amount of Goodwill | The following table summarizes changes in the carrying amount of goodwill in each of the Company’s reportable segments (in millions):
|  | Three Months Ended December 31, 2024
|  | Building Solutions North America |  | Building Solutions EMEA/LA |  | Building Solutions Asia Pacific |  | Global Products |  | Total
Goodwill |  | $ | 10,050 |  |  | $ | 2,039 |  |  | $ | 1,227 |  |  | $ | 4,604 |  |  | 17,920 |
Accumulated impairment loss |  | (659) |  |  | (277) |  |  | — |  |  | (259) |  |  | (1,195) |
Balance at beginning of period |  | 9,391 |  |  | 1,762 |  |  | 1,227 |  |  | 4,345 |  |  | 16,725 |
Foreign currency translation |  | (41) |  |  | (107) |  |  | (84) |  |  | (81) |  |  | (313) |
Balance at end of period |  | $ | 9,350 |  |  | $ | 1,655 |  |  | $ | 1,143 |  |  | $ | 4,264 |  |  | $ | 16,412 |
Other Intangible Assets | Other intangible assets, primarily from business acquisitions, consisted of (in millions):
| December 31, 2024 |  | September 30, 2024
| Gross Carrying Amount |  | Accumulated Amortization |  | Net |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net
Definite-lived intangible assets |  |  |  |  |  |  |  |  |  |  |
Technology | $ | 1,570 |  |  | $ | (973) |  |  | $ | 597 |  |  | $ | 1,592 |  |  | $ | (955) |  |  | $ | 637 |
Customer relationships | 2,571 |  |  | (1,534) |  |  | 1,037 |  |  | 2,632 |  |  | (1,517) |  |  | 1,115 |
Miscellaneous | 877 |  |  | (479) |  |  | 398 |  |  | 886 |  |  | (480) |  |  | 406 |
| 5,018 |  |  | (2,986) |  |  | 2,032 |  |  | 5,110 |  |  | (2,952) |  |  | 2,158 |
Indefinite-lived intangible assets |  |  |  |  |  |  |  |  |  |  |
Trademarks/trade names | 1,931 |  |  | — |  |  | 1,931 |  |  | 1,972 |  |  | — |  |  | 1,972 |
Total intangible assets | $ | 6,949 |  |  | $ | (2,986) |  |  | $ | 3,963 |  |  | $ | 7,082 |  |  | $ | (2,952) |  |  | $ | 4,130 |

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- Definition Tabular disclosure of amortizable and unamortizable intangible assets other than goodwill, in total and by major class, including the gross carrying amount and accumulated amortization. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. + References No definition available. + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482548/350-20-55-24 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482573/350-20-50-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482573/350-20-50-1 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482573/350-20-50-1 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482573/350-20-50-1 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482573/350-20-50-1 Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482573/350-20-50-1 Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482573/350-20-50-1 Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482573/350-20-50-1 Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482573/350-20-50-1 Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482573/350-20-50-1A Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482573/350-20-50-2 + Details
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