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PROPERTY, PLANT AND EQUIPMENT - Schedule of Property, Plant and Equipment (Detail) - USD ($)
$ in Millions
Sep. 30, 2026
Sep. 30, 2025
Property, Plant, and Equipment [Abstract]    
Land and improvements $ 203 $ 192
Buildings and improvements 924 794
Machinery, equipment and other 1,869 1,621
Construction-in-progress 193 163
Total 3,189 2,770
Accumulated depreciation (1,357) (1,191)
Property, plant and equipment—Net $ 1,832 $ 1,579