INVESTMENTS (Tables)

12 Months Ended

Jun. 30, 2018

Investments Debt And Equity Securities [Abstract]

Investment Components, Including Associated Derivatives

The components of investments, including associated derivatives, were as follows:

(In millions)	Cost Basis		Unrealized Gains		Unrealized Losses			Recorded Basis		Cash and Cash Equivalents		Short-term Investments		Equity and Other Investments
June 30, 2018
Cash	$	3,942	$	0	$	0		$	3,942	$	3,942	$	0	$	0
Mutual funds		246		0		0			246		246		0		0
Commercial paper		2,513		0		0			2,513		2,215		298		0
Certificates of deposit		2,058		0		0			2,058		1,865		193		0
U.S. government and agency securities		109,862		62		(1,167	)		108,757		3,678		105,079		0
Foreign government bonds		5,182		1		(10	)		5,173		0		5,173		0
Mortgage- and asset-backed securities		3,868		4		(13	)		3,859		0		3,859		0
Corporate notes and bonds		6,947		21		(56	)		6,912		0		6,912		0
Municipal securities		271		37		(1	)		307		0		307		0
Common and preferred stock		1,220		95		(10	)		1,305		0		0		1,305
Other investments		558		0		0			558		0		1		557
Total	$	136,667	$	220	$	(1,257	)	$	135,630	$	11,946	$	121,822	$	1,862

(In millions)	Cost Basis		Unrealized Gains		Unrealized Losses			Recorded Basis		Cash and Cash Equivalents		Short-term Investments		Equity and Other Investments
June 30, 2017
Cash	$	3,624	$	0	$	0		$	3,624	$	3,624	$	0	$	0
Mutual funds		1,478		0		0			1,478		1,478		0		0
Commercial paper		319		0		0			319		69		250		0
Certificates of deposit		1,358		0		0			1,358		972		386		0
U.S. government and agency securities		112,119		85		(360	)		111,844		16		111,828		0
Foreign government bonds		5,276		2		(13	)		5,265		1,504		3,761		0
Mortgage- and asset-backed securities		3,921		14		(4	)		3,931		0		3,931		0
Corporate notes and bonds		4,786		61		(12	)		4,835		0		4,835		0
Municipal securities		284		43		0			327		0		327		0
Common and preferred stock		2,472		3,062		(34	)		5,500		0		0		5,500
Other investments		523		0		0			523		0		0		523
Total	$	136,160	$	3,267	$	(423	)	$	139,004	$	7,663	$	125,318	$	6,023

Unrealized Losses on Investments

Investments with continuous unrealized losses for less than 12 months and 12 months or greater and their related fair values were as follows:

	Less than 12 Months					12 Months or Greater							Total Unrealized Losses
(In millions)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Total Fair Value
June 30, 2018
U.S. government and agency securities	$	82,352	$	(1,064	)	$	4,459	$	(103	)	$	86,811	$	(1,167	)
Foreign government bonds		3,457		(7	)		13		(3	)		3,470		(10	)
Mortgage- and asset-backed securities		2,072		(9	)		96		(4	)		2,168		(13	)
Corporate notes and bonds		3,111		(43	)		301		(13	)		3,412		(56	)
Municipal securities		45		(1	)		0		0			45		(1	)
Common and preferred stock		75		(6	)		8		(4	)		83		(10	)
Total	$	91,112	$	(1,130	)	$	4,877	$	(127	)	$	95,989	$	(1,257	)

	Less than 12 Months					12 Months or Greater							Total Unrealized Losses
(In millions)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Total Fair Value
June 30, 2017
U.S. government and agency securities	$	87,558	$	(348	)	$	371	$	(12	)	$	87,929	$	(360	)
Foreign government bonds		4,006		(2	)		23		(11	)		4,029		(13	)
Mortgage- and asset-backed securities		1,068		(3	)		198		(1	)		1,266		(4	)
Corporate notes and bonds		669		(8	)		177		(4	)		846		(12	)
Common and preferred stock		69		(6	)		148		(28	)		217		(34	)
Total	$	93,370	$	(367	)	$	917	$	(56	)	$	94,287	$	(423	)

Debt Investment Maturities

Debt Investment Maturities

(In millions)	Cost Basis		Estimated Fair Value
June 30, 2018
Due in one year or less	$	31,590	$	31,451
Due after one year through five years		76,422		75,810
Due after five years through 10 years		21,765		21,396
Due after 10 years		924		922
Total	$	130,701	$	129,579