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Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Changes in Carrying Amount of Goodwill | The changes in the carrying amount of goodwill in each of the Company’s reportable segments for the fiscal years ended September 30, 2021 and 2020 were as follows (in millions):
| September 30, 2019 |  | Business Acquisitions |  | Business Divestitures |  | Impairments |  | Currency Translation and Other |  | September 30, 2020
Building Solutions North America | $ | 9,588 |  |  | $ | — |  |  | $ | — |  |  | $ | (424) |  |  | $ | (4) |  |  | $ | 9,160 |
Building Solutions EMEA/LA | 1,849 |  |  | 35 |  |  | — |  |  | — |  |  | 83 |  |  | 1,967 |
Building Solutions Asia Pacific | 1,194 |  |  | — |  |  | (11) |  |  | — |  |  | 43 |  |  | 1,226 |
Global Products | 5,547 |  |  | 21 |  |  | — |  |  | — |  |  | 11 |  |  | 5,579 |
Total | $ | 18,178 |  |  | $ | 56 |  |  | $ | (11) |  |  | $ | (424) |  |  | $ | 133 |  |  | $ | 17,932 |
| September 30, 2020 |  | Business Acquisitions |  | Business Divestitures |  | Impairments |  | Currency Translation and Other |  | September 30, 2021
Building Solutions North America | $ | 9,160 |  |  | $ | 21 |  |  | $ | — |  |  | $ | — |  |  | $ | 34 |  |  | $ | 9,215 |
Building Solutions EMEA/LA | 1,967 |  |  | 35 |  |  | — |  |  | — |  |  | 19 |  |  | 2,021 |
Building Solutions Asia Pacific | 1,226 |  |  | — |  |  | (7) |  |  | — |  |  | 21 |  |  | 1,240 |
Global Products | 5,579 |  |  | 244 |  |  | — |  |  | — |  |  | 36 |  |  | 5,859 |
Total | $ | 17,932 |  |  | $ | 300 |  |  | $ | (7) |  |  | $ | — |  |  | $ | 110 |  |  | $ | 18,335 |
Other Intangible Assets | The Company’s other intangible assets, primarily from business acquisitions valued based on independent appraisals, consisted of (in millions):
| September 30, 2021 |  | September 30, 2020
| Gross Carrying Amount |  | Accumulated Amortization |  | Net |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net
Definite-lived intangible assets |  |  |  |  |  |  |  |  |  |  |
Technology | $ | 1,464 |  |  | $ | (629) |  |  | $ | 835 |  |  | $ | 1,332 |  |  | $ | (497) |  |  | $ | 835 |
Customer relationships | 3,097 |  |  | (1,191) |  |  | 1,906 |  |  | 2,773 |  |  | (969) |  |  | 1,804 |
Miscellaneous | 750 |  |  | (354) |  |  | 396 |  |  | 657 |  |  | (268) |  |  | 389 |
| 5,311 |  |  | (2,174) |  |  | 3,137 |  |  | 4,762 |  |  | (1,734) |  |  | 3,028 |
Indefinite-lived intangible assets |  |  |  |  |  |  |  |  |  |  |
Trademarks/tradenames | 2,332 |  |  | — |  |  | 2,332 |  |  | 2,248 |  |  | — |  |  | 2,248 |
Miscellaneous | 80 |  |  | — |  |  | 80 |  |  | 80 |  |  | — |  |  | 80 |
| 2,412 |  |  | — |  |  | 2,412 |  |  | 2,328 |  |  | — |  |  | 2,328 |
Total intangible assets | $ | 7,723 |  |  | $ | (2,174) |  |  | $ | 5,549 |  |  | $ | 7,090 |  |  | $ | (1,734) |  |  | $ | 5,356 |

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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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- 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 + Details
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