Interim Financial Data by Segment (Tables)

6 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Segment Results:

	Revenues
	Three Months Ended						Six Months Ended
	December 31,						December 31,
	2018			2017			2018			2017
Employer Services	$	2,450.4		$	2,297.8		$	4,788.6		$	4,477.2
PEO Services	1,058.2			942.4			2,046.0			1,842.2
Other	(2.7		)	(1.9		)	(5.5		)	(3.9		)
	$	3,505.9		$	3,238.3		$	6,829.1		$	6,315.5

	Earnings before Income Taxes
	Three Months Ended						Six Months Ended
	December 31,						December 31,
	2018			2017			2018			2017
Employer Services	$	733.3		$	581.1		$	1,371.0		$	1,118.3
PEO Services	157.0			133.2			303.0			256.5
Other	(149.3		)	(126.8		)	(286.2		)	(222.4		)
	$	741.0		$	587.5		$	1,387.8		$	1,152.4