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Significant Restructuring and Impairment Costs - Schedule of Restructuring Reserve by Segment (Details) - 2021 Restructuring Plan $ in Millions | 12 Months Ended
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Sep. 30, 2022 USD ($)
Restructuring Cost and Reserve [Line Items] |
Restructuring, settlement and impairment provisions | $ 182
Restructuring and impairment costs, costs incurred to date | 424
Building Solutions North America |
Restructuring Cost and Reserve [Line Items] |
Restructuring, settlement and impairment provisions | 41
Restructuring and impairment costs, costs incurred to date | 111
Building Solutions EMEA/LA |
Restructuring Cost and Reserve [Line Items] |
Restructuring, settlement and impairment provisions | 33
Restructuring and impairment costs, costs incurred to date | 62
Building Solutions Asia Pacific |
Restructuring Cost and Reserve [Line Items] |
Restructuring, settlement and impairment provisions | 21
Restructuring and impairment costs, costs incurred to date | 49
Global Products |
Restructuring Cost and Reserve [Line Items] |
Restructuring, settlement and impairment provisions | 75
Restructuring and impairment costs, costs incurred to date | 166
Corporate |
Restructuring Cost and Reserve [Line Items] |
Restructuring, settlement and impairment provisions | 12
Restructuring and impairment costs, costs incurred to date | $ 36

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