Interim Financial Data by Segment (Tables)

6 Months Ended

Dec. 31, 2020

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Segment Results:

	Revenues
	Three Months Ended				Six Months Ended
	December 31,				December 31,
	2020		2019		2020		2019
Employer Services	$	2,510.6	$	2,537.5	$	4,887.4	$	4,978.9
PEO Services	1,186.1		1,134.7		2,282.0		2,191.5
Other	(1.0)		(2.7)		(2.9)		(5.2)
	$	3,695.7	$	3,669.5	$	7,166.5	$	7,165.2

	Earnings before Income Taxes
	Three Months Ended				Six Months Ended
	December 31,				December 31,
	2020		2019		2020		2019
Employer Services	$	758.6	$	766.3	$	1,447.8	$	1,445.7
PEO Services	187.4		168.0		346.8		317.3
Other	(113.4)		(98.8)		(196.8)		(188.4)
	$	832.6	$	835.5	$	1,597.8	$	1,574.6