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Business Segment Information (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | $ 231 | $ 244
Corporate, non-segment [Member] | Corporate and Other [Member] |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 9 | 20
Operating Segments [Member] | Automation Solutions [Member] |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 155 | 156
Operating Segments [Member] | Commercial & Residential Solutions [Member] |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 67 | 68
Operating Segments [Member] | Climate Technologies [Member] |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 47 | 49
Operating Segments [Member] | Tools & Home Products [Member] |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | $ 20 | $ 19

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