Property and Equipment (Tables)

12 Months Ended

Sep. 30, 2021

Property, Plant and Equipment, Net [Abstract]

Summary of property and equipment

Property and equipment, net consisted of the following:

(in millions)					Useful Lives In Years
as of September 30,	2021		2020
Buildings and leasehold improvements	$	868.2	$	877.4	5-35
Software	609.4		576.2		3-10
Equipment and furniture	390.6		374.0		3-10
Land	82.5		83.0		N/A
Total cost	1,950.7		1,910.6
Less: accumulated depreciation and amortization	(1,180.7)		(1,096.8)
Property and Equipment, Net	$	770.0	$	813.8