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Goodwill and Other Intangible Assets (Tables) | 9 Months Ended
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Jun. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | Changes in the carrying amount of Goodwill for the nine months ended June 30, 2024, were (in millions):
| Intelligent Devices |  | Software & Control |  | Lifecycle Services |  | Total
Balance as of September 30, 2023 | $ | 595.8 |  |  | $ | 2,420.1 |  |  | $ | 513.3 |  |  | $ | 3,529.2 |
Acquisition of businesses | 282.8 |  |  | — |  |  | 133.5 |  |  | 416.3 |
Translation | 3.7 |  |  | 2.9 |  |  | 1.6 |  |  | 8.2 |
Balance as of June 30, 2024 | $ | 882.3 |  |  | $ | 2,423.0 |  |  | $ | 648.4 |  |  | $ | 3,953.7 |
Gross carrying value of goodwill | $ | 882.3 |  |  | $ | 2,423.0 |  |  | $ | 805.9 |  |  | $ | 4,111.2 |
Accumulated impairment losses | — |  |  | — |  |  | (157.5) |  |  | (157.5) |
Goodwill | $ | 882.3 |  |  | $ | 2,423.0 |  |  | $ | 648.4 |  |  | $ | 3,953.7 |
Schedule of Finite Lived and Indefinite Lived Intangible Assets by Major Class | Other intangible assets consist of (in millions):
| June 30, 2024
| Carrying Amount |  | Accumulated Amortization |  | Net
Amortized intangible assets |  |  |  |  |
Software products | $ | 103.4 |  |  | $ | 72.2 |  |  | $ | 31.2 |
Customer relationships | 616.6 |  |  | 174.1 |  |  | 442.5 |
Technology | 726.8 |  |  | 235.2 |  |  | 491.6 |
Trademarks | 130.9 |  |  | 40.0 |  |  | 90.9 |
Other | 5.7 |  |  | 5.2 |  |  | 0.5 |
Total amortized intangible assets | 1,583.4 |  |  | 526.7 |  |  | 1,056.7 |
Allen-Bradley® trademark not subject to amortization | 43.7 |  |  | — |  |  | 43.7 |
Other intangible assets | $ | 1,627.1 |  |  | $ | 526.7 |  |  | $ | 1,100.4 |
| September 30, 2023
| Carrying Amount |  | Accumulated Amortization |  | Net
Amortized intangible assets |  |  |  |  |
Software products | $ | 100.4 |  |  | $ | 65.1 |  |  | $ | 35.3 |
Customer relationships | 606.1 |  |  | 141.3 |  |  | 464.8 |
Technology | 424.1 |  |  | 173.1 |  |  | 251.0 |
Trademarks | 86.3 |  |  | 29.3 |  |  | 57.0 |
Other | 6.0 |  |  | 5.4 |  |  | 0.6 |
Total amortized intangible assets | 1,222.9 |  |  | 414.2 |  |  | 808.7 |
Allen-Bradley® trademark not subject to amortization | 43.7 |  |  | — |  |  | 43.7 |
Other intangible assets | $ | 1,266.6 |  |  | $ | 414.2 |  |  | $ | 852.4 |

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- Definition Tabular disclosure of amortizable finite-lived intangible assets, including the gross carrying amount and accumulated amortization along with the disclosure of the carrying value of indefinite-lived intangible assets not subject to amortization, excluding goodwill, in total and by major class. + References No definition available. + Details
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