Statements Of Consolidated Earnings (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended				6 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2011		Dec. 31, 2010
REVENUES:
Revenues, other than interest on funds held for clients and PEO revenues	$ 2,054.0		$ 1,921.0		$ 4,056.7		$ 3,684.8
Interest on funds held for clients	117.9		129.0		239.8		255.8
PEO revenues	411.1	[1]	355.7	[1]	809.0	[1]	694.6	[1]
TOTAL REVENUES	2,583.0		2,405.7		5,105.5		4,635.2
EXPENSES:
Operating expenses	1,307.7		1,173.6		2,600.3		2,290.3
Systems development and programming costs	149.1		142.1		298.8		277.0
Depreciation and amortization	63.1		64.6		126.9		124.9
TOTAL COSTS OF REVENUES	1,519.9		1,380.3		3,026.0		2,692.2
Selling, general and administrative expenses	577.5		570.1		1,166.7		1,085.7
Interest expense	2.1		2.8		4.2		5.6
TOTAL EXPENSES	2,099.5		1,953.2		4,196.9		3,783.5
Other income, net	(96.2)		(32.1)		(130.4)		(69.3)
EARNINGS BEFORE INCOME TAXES	579.7		484.6		1,039.0		921.0
Provision for income taxes	204.7		174.5		361.3		332.4
NET EARNINGS	$ 375.0		$ 310.1		$ 677.7		$ 588.6
BASIC EARNINGS PER SHARE	$ 0.77		$ 0.63		$ 1.39		$ 1.20
DILUTED EARNINGS PER SHARE	$ 0.76		$ 0.62		$ 1.38		$ 1.19
Basic weighted average shares outstanding	486.7		492.0		487.3		491.7
Diluted weighted average shares outstanding	492.4		496.9		492.8		495.9
Dividends declared per common share	$ 0.3950		$ 0.3600		$ 0.7550		$ 0.7000

[1] Professional Employer Organization ("PEO") revenues are net of direct pass-through costs, primarily consisting of payroll wages and payroll taxes, of $4,810.4 and $4,231.3 for the three months ended December 31, 2011 and 2010, respectively, and $8,745.7 and $7,582.7 for the six months ended December 31, 2011 and 2010, respectively.