RETIREMENT BENEFITS - Sensitivities of Certain Key Assumptions (Details) $ in Millions	3 Months Ended
Jun. 30, 2015 USD ($)
U.S. Pension Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Effect of one-percentage-point increase in discount rates	$ 8
Effect of one-percentage-point decrease in discount rates	(13)
Non - U.S. Pension Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Effect of one-percentage-point increase in discount rates	(6)
Effect of one-percentage-point decrease in discount rates	8
U.S. Postretirement Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Effect of one-percentage-point increase on benefits earned and interest cost for U.S. postretirement plans	1
Effect of one-percentage-point decrease on benefits earned and interest cost for U.S. postretirement plans	(1)
Non-U.S. Postretirement Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Effect of one-percentage-point increase on benefits earned and interest cost for U.S. postretirement plans	(3)
Effect of one-percentage-point decrease on benefits earned and interest cost for U.S. postretirement plans	$ 3

The effect of a one-percentage-point decrease in the discount rates on pension expenses.

No definition available.

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- Definition

The effect of a one-percentage-point increase in the discount rates on pension expenses.

+ References

No definition available.

+ Details

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- Definition

Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (m)

-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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- Definition

The effect of a one-percentage-point increase in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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