Fair Value Measurements (Tables)

9 Months Ended

Mar. 31, 2012

Fair Value Measurements [Abstract]

Schedule Of Assets Measured At Fair Value On A Recurring Basis

The following table presents the Company's assets measured at fair value on a recurring basis at March 31, 2012. Included in the table are available-for-sale securities within corporate investments of $124.8 million and funds held for clients of $17,594.1 million.

		Level 1		Level 2		Level 3		Total
U.S Treasury and direct obligations of
U.S. government agencies	$	-	$	6,683.6	$	-	$	6,683.6
Corporate bonds		-		7,142.9		-		7,142.9
Asset-backed securities		-		414.4		-		414.4
Commercial mortgage-backed securities		-		337.2		-		337.2
Municipal bonds		-		539.3		-		539.3
Canadian government obligations and
Canadian government agency obligations		-		1,043.3		-		1,043.3
Other securities		22.9		1,535.3		-		1,558.2
Total available-for-sale securities	$	22.9	$	17,696.0	$	-	$	17,718.9

The following table presents the Company's assets measured at fair value on a recurring basis at June 30, 2011. Included in the table are available-for-sale securities within corporate investments of $134.3 million and funds held for clients of $16,793.2 million.

		Level 1		Level 2		Level 3		Total
U.S Treasury and direct obligations of
U.S. government agencies	$	-	$	6,759.1	$	-	$	6,759.1
Corporate bonds		-		6,126.6		-		6,126.6
Asset-backed securities		-		447.8		-		447.8
Commercial mortgage-backed securities		-		492.5		-		492.5
Municipal bonds		-		516.2		-		516.2
Canadian government obligations and
Canadian government agency obligations		-		1,101.5		-		1,101.5
Other securities		20.1		1,463.7		-		1,483.8
Total available-for-sale securities	$	20.1	$	16,907.4	$	-	$	16,927.5