RESTRUCTURING PROGRAM - RESTRUCTURING RESERVE BY TYPE OF COSTS (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2017
Restructuring Reserve [Roll Forward]
Accrual Balance June 30, 2017		$ 277	$ 277
Restructuring Charges	$ 154	157	311
Cash Spent			(138)
Charges Against Assets			(144)
Accrual Balance December 31, 2017	306		306
Separations
Restructuring Reserve [Roll Forward]
Accrual Balance June 30, 2017		228	228
Restructuring Charges	67	46
Cash Spent			(74)
Charges Against Assets			0
Accrual Balance December 31, 2017	267		267
Asset-related Costs
Restructuring Reserve [Roll Forward]
Accrual Balance June 30, 2017		0	0
Restructuring Charges	58	86
Cash Spent			0
Charges Against Assets			(144)
Accrual Balance December 31, 2017	0		0
Other Costs
Restructuring Reserve [Roll Forward]
Accrual Balance June 30, 2017		49	49
Restructuring Charges	29	$ 25
Cash Spent			(64)
Charges Against Assets			0
Accrual Balance December 31, 2017	$ 39		$ 39

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3536-108585

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.P.3)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of decrease in the reserve for full or partial settlement through consideration other than cash.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Topic 420
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