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Segment Information - Financial Information Related to Company's Reportable Segments (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Segment Reporting Information [Line Items] |  |
Total net sales | $ 5,426 | $ 5,209
Total segment EBITA | 815 | 678
Corporate expenses | 171 | 139
Amortization of intangible assets | 120 | 119
Restructuring and impairment costs | 33 | 35
Water systems AFFF insurance recoveries | (4) | 0
Net mark-to-market losses (gains) | 1 | (22)
Net financing charges | 86 | 87
Income from continuing operations before income taxes | 408 | 320
Building Solutions North America |  |
Segment Reporting Information [Line Items] |  |
Total net sales | 2,744 | 2,487
Total segment EBITA | 332 | 285
Building Solutions EMEA/LA |  |
Segment Reporting Information [Line Items] |  |
Total net sales | 1,073 | 1,038
Total segment EBITA | 108 | 80
Building Solutions Asia Pacific |  |
Segment Reporting Information [Line Items] |  |
Total net sales | 527 | 507
Total segment EBITA | 49 | 46
Global Products |  |
Segment Reporting Information [Line Items] |  |
Total net sales | 1,082 | 1,177
Total segment EBITA | $ 326 | $ 267

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- Definition Amount of income or loss from continuing operations before income taxes and noncontrolling interests, excluding general corporate expenses, intangible asset amortization, net financing charges, significant restructuring and impairment costs, and net mark-to-market adjustments on pension and postretirement plans. + References No definition available. + Details
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