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Segment Information - Financial Information Related to Company's Reportable Segments (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Segment Reporting Information [Line Items] |  |
Net sales | $ 5,862 | $ 5,341
Segment EBITA | 723 | 642
Corporate expenses | (70) | (67)
Amortization of intangible assets | (118) | (104)
Restructuring and impairment costs | (49) | 0
Net mark-to-market adjustments | 57 | 21
Net financing charges | (53) | (59)
Income from continuing operations before income taxes | 490 | 433
Building Solutions North America |  |
Segment Reporting Information [Line Items] |  |
Net sales | 2,152 | 2,034
Segment EBITA | 250 | 255
Building Solutions EMEA/LA |  |
Segment Reporting Information [Line Items] |  |
Net sales | 959 | 948
Segment EBITA | 104 | 98
Building Solutions Asia Pacific |  |
Segment Reporting Information [Line Items] |  |
Net sales | 675 | 604
Segment EBITA | 68 | 77
Global Products |  |
Segment Reporting Information [Line Items] |  |
Net sales | 2,076 | 1,755
Segment EBITA | $ 301 | $ 212

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