Marketable Securities And Cash Equivalents (Tables)

3 Months Ended

Sep. 30, 2012

Marketable Securities And Cash Equivalents [Abstract]

Investments In Debt And Equity Securities

			Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value
			(In millions)
September 30, 2012
United States government obligations
Maturity less than 1 year	$	698	$	-	$	-	$	698
Maturity 1 to 5 years		96		1		-		97
Government-sponsored enterprise obligations
Maturity 1 to 5 years		3		-		-		3
Corporate debt securities
Maturity 1 to 5 years		8		-		-		8
Other debt securities
Maturity less than 1 year		671		-		-		671
Maturity 1 to 5 years		3		-		-		3
Equity securities
Available-for-sale		122		-		(12)		110
Trading		25		-		-		25
	$	1,626	$	1	$	(12)	$	1,615
			Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value
			(In millions)
June 30, 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