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Property, net
12 Months Ended
Sep. 30, 2023
Property, Plant and Equipment [Abstract]  
Property, net Property, net
Property consists of (in millions):
 September 30,
 20232022
Land$4.6 $4.6 
Buildings and improvements434.1 399.0 
Machinery and equipment1,312.7 1,201.6 
Internal-use software569.4 540.7 
Construction in progress191.7 142.9 
Total2,512.5 2,288.8 
Less: Accumulated depreciation(1,828.3)(1,702.3)
Property, net$684.2 $586.5