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Business Segment Information - Depreciation & Amortization (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | $ 257 | $ 222 | $ 780 | $ 571
Corporate, non-segment [Member] | Corporate and Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 12 | 9 | 24 | 26
Operating Segments [Member] | Final Control |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 39 | 53 | 129 | 156
Operating Segments [Member] | Measurement & Analytical Instrumentation [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 26 | 27 | 84 | 88
Operating Segments [Member] | Discrete Automation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 20 | 22 | 63 | 67
Operating Segments [Member] | Safety & Productivity [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 15 | 15 | 44 | 44
Operating Segments [Member] | Intelligent Devices |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 100 | 117 | 320 | 355
Operating Segments [Member] | AspenTech |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 123 | 72 | 369 | 119
Operating Segments [Member] | Control Systems & Software |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 22 | 24 | 67 | 71
Operating Segments [Member] | Software and Control |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | $ 145 | $ 96 | $ 436 | $ 190

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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-22 + Details
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