Marketable Securities And Cash Equivalents (Tables)

12 Months Ended

Jun. 30, 2012

Marketable Securities And Cash Equivalents [Abstract]

Investments In Debt And Equity Securities

			Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value
			(In millions)
2012
United States government obligations
Maturity less than 1 year	$	562	$	-	$	-	$	562
Maturity 1 to 5 years		87		1		-		88
Corporate debt securities
Maturity 1 to 5 years		24		-		-		24
Other debt securities
Maturity less than 1 year		385		-		-		385
Maturity 1 to 5 years		4		-		-		4
Equity securities
Available-for-sale		124		2		(4)		122
Trading		24		-		-		24
	$	1,210	$	3	$	(4)	$	1,209
			Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value
			(In millions)
2011
United States government obligations
Maturity less than 1 year	$	753	$	-	$	-	$	753
Maturity 1 to 5 years		72		1		-		73
Government–sponsored enterprise obligations
Maturity less than 1 year		20		-		-		20
Maturity 1 to 5 years		54		-		-		54
Maturity 5 to 10 years		5		-		-		5
Maturity greater than 10 years		218		8		-		226
Corporate debt securities
Maturity less than 1 year		1		-		-		1
Maturity 1 to 5 years		35		1		-		36
Other debt securities
Maturity less than 1 year		215		-		-		215
Maturity 1 to 5 years		3		-		-		3
Maturity 5 to 10 years		7		-		-		7
Equity securities
Available-for-sale		159		83		(4)		238
Trading		24		-		-		24
	$	1,566	$	93	$	(4)	$	1,655