Interim Financial Data by Segment (Tables)

6 Months Ended

Dec. 31, 2023

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Segment Results:

	Revenues
	Three Months Ended				Six Months Ended
	December 31,				December 31,
	2023		2022		2023		2022
Employer Services	$	3,125.2	$	2,891.9	$	6,171.6	$	5,682.2
PEO Services	1,546.1		1,503.3		3,015.7		2,932.7
Other	(3.3)		(4.2)		(7.0)		(8.3)
	$	4,668.0	$	4,391.0	$	9,180.3	$	8,606.6

  

	Earnings before Income Taxes
	Three Months Ended				Six Months Ended
	December 31,				December 31,
	2023		2022		2023		2022
Employer Services	$	1,061.9	$	934.6	$	2,070.4	$	1,798.1
PEO Services	255.0		255.6		477.9		485.9
Other	(173.1)		(132.1)		(311.7)		(215.9)
	$	1,143.8	$	1,058.1	$	2,236.6	$	2,068.1