Interim Financial Data by Segment (Tables)

9 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Segment Results:

	Revenues
	Three Months Ended						Nine Months Ended
	March 31,						March 31,
	2018			2017			2018			2017
Employer Services	$	2,804.1		$	2,627.2		$	7,558.1		$	7,197.8
PEO Services	1,071.1			974.4			2,919.9			2,592.0
Other	0.2			(2.1		)	(3.7		)	(8.2		)
Reconciling item:
Client fund interest	(182.4		)	(188.7		)	(467.1		)	(466.7		)
	$	3,693.0		$	3,410.8		$	10,007.2		$	9,314.9

	Earnings before Income Taxes
	Three Months Ended						Nine Months Ended
	March 31,						March 31,
	2018			2017			2018			2017
Employer Services	$	1,022.5		$	963.0		$	2,375.5		$	2,300.1
PEO Services	136.3			120.0			381.3			341.5
Other	(123.8		)	(66.4		)	(323.2		)	(32.2		)
Reconciling item:
Client fund interest	(182.4		)	(188.7		)	(467.1		)	(466.7		)
	$	852.6		$	827.9		$	1,966.5		$	2,142.7