Interim Financial Data by Segment (Tables)

9 Months Ended

Mar. 31, 2019

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Segment Results:

	Revenues
	Three Months Ended					Nine Months Ended
	March 31,					March 31,
	2019			2018		2019			2018
Employer Services	$	2,719.1		$	2,628.5	$	7,507.7		$	7,105.7
PEO Services	1,134.7			1,067.3		3,180.7			2,909.5
Other	(6.4		)	0.2		(11.9		)	(3.7		)
	$	3,847.4		$	3,696.0	$	10,676.5		$	10,011.5

	Earnings before Income Taxes
	Three Months Ended						Nine Months Ended
	March 31,						March 31,
	2019			2018			2019			2018
Employer Services	$	962.1		$	870.1		$	2,333.0		$	1,988.4
PEO Services	155.7			147.1			458.6			403.6
Other	(133.3		)	(142.0		)	(419.3		)	(364.3		)
	$	984.5		$	875.2		$	2,372.3		$	2,027.7