Interim Financial Data by Segment (Tables)

9 Months Ended

Mar. 31, 2021

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Segment Results:

	Revenues
	Three Months Ended				Nine Months Ended
	March 31,				March 31,
	2021		2020		2021		2020
Employer Services	$	2,780.0	$	2,811.7	$	7,667.4	$	7,790.6
PEO Services	1,324.1		1,238.3		3,606.1		3,429.8
Other	(2.1)		(2.2)		(5.1)		(7.4)
	$	4,102.0	$	4,047.8	$	11,268.4	$	11,213.0

	Earnings before Income Taxes
	Three Months Ended				Nine Months Ended
	March 31,				March 31,
	2021		2020		2021		2020
Employer Services	$	980.0	$	1,023.7	$	2,427.8	$	2,469.4
PEO Services	198.7		173.6		545.5		490.9
Other	(112.5)		(120.6)		(309.2)		(309.0)
	$	1,066.2	$	1,076.7	$	2,664.1	$	2,651.3