RISK MANAGEMENT ACTIVITIES AND FAIR VALUE MEASUREMENTS - DERIVATIVE NOTIONAL AMOUNTS AND FAIR VALUE (Details) - USD ($) $ in Millions	Dec. 31, 2016	Jun. 30, 2016
Derivatives Not Designated as Hedging Instruments \| Foreign Currency Contracts
Derivative [Line Items]
Notional Amount	$ 3,745	$ 6,482
Fair Value Asset/(Liability)	(20)	(10)
Derivatives in Cash Flow Hedging Relationships \| Foreign Currency Contracts
Derivative [Line Items]
Notional Amount	798	798
Fair Value Asset/(Liability)	116	31
Derivatives in Fair Value Hedging Relationships \| Interest Rate Contracts
Derivative [Line Items]
Notional Amount	4,393	4,993
Fair Value Asset/(Liability)	191	371
Derivatives in Net Investment Hedging Relationships
Derivative [Line Items]
Notional Amount	3,044	3,013
Fair Value Asset/(Liability)	$ 147	$ (87)

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

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- Definition

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+ References

No definition available.

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