POSTRETIREMENT BENEFITS AND EMPLOYEE STOCK OWNERSHIP PLAN - COMPONENTS OF NET PERIODIC BENEFIT COST (DETAILS) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2010
Pension Benefits
Service cost	$ 267	[1]	$ 270	[1]	$ 218
Interest cost	611	[1]	588	[1]	579
Expected return on plan assets	(573)		(492)		(437)
Prior service cost (credit) amortization	21		18		15
Net actuarial loss amortization	102		154		91
Curtailments, settlements and other	6		0		3
GROSS BENEFIT COST (CREDIT)	434		538		469
Dividends on ESOP preferred stock	0		0		0
NET PERIODIC BENEFIT COST (CREDIT)	434		538		469
Other Retiree Benefits
Service cost	142	[2]	146	[2]	103
Interest cost	276	[2]	270	[2]	253
Expected return on plan assets	(434)		(431)		(429)
Prior service cost (credit) amortization	(20)		(18)		(21)
Net actuarial loss amortization	99		96		20
Curtailments, settlements and other	27		3		14
GROSS BENEFIT COST (CREDIT)	90		66		(60)
Dividends on ESOP preferred stock	(74)		(79)		(83)
NET PERIODIC BENEFIT COST (CREDIT)	$ 16		$ (13)		$ (143)

[1] Primarily non-U.S.-based defined benefit retirement plans.

[2] Primarily U.S.-based other postretirement benefit plans.