Interim Financial Data by Segment (Tables)

9 Months Ended

Mar. 31, 2023

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Segment Results:

	Revenues
	Three Months Ended				Nine Months Ended
	March 31,				March 31,
	2023		2022		2023		2022
Employer Services	$	3,339.1	$	3,002.0	$	9,021.3	$	8,244.8
PEO Services	1,592.0		1,513.8		4,524.7		4,136.7
Other	(3.3)		(2.8)		(11.6)		(10.9)
	$	4,927.8	$	4,513.0	$	13,534.4	$	12,370.6

  

	Earnings before Income Taxes
	Three Months Ended				Nine Months Ended
	March 31,				March 31,
	2023		2022		2023		2022
Employer Services	$	1,244.5	$	1,095.7	$	3,042.6	$	2,697.0
PEO Services	261.0		227.2		747.0		632.9
Other	(141.5)		(133.0)		(357.6)		(329.2)
	$	1,364.0	$	1,189.9	$	3,432.0	$	3,000.7