POSTRETIREMENT BENEFITS AND EMPLOYEE STOCK OWNERSHIP PLAN - DEFINED CONTRIBUTION RETIREMENT PLANS (Details) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Defined Contribution Plan Disclosure [Line Items]
Defined Contribution Plan, Cost Recognized	$ 270	$ 292	$ 305
UNITED STATES
Defined Contribution Plan Disclosure [Line Items]
Defined Contribution Plan Contribution Rate	14.00%	14.00%	14.00%

The amount of the cost recognized during the period for defined contribution plans.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

Name:	us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration