RETIREMENT BENEFITS - Contributions (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Pension Plans
Amounts that will be amortized from accumulated other comprehensive income (loss) into net expense in next fiscal year
Future amortization of gain (loss)	$ (245)
Future amortization of prior service cost (credit)	1
U.S. Pension Plans
Defined Benefit Plan, Estimated Future Employer Contributions [Abstract]
Estimated future cash contributions	0
Estimated benefits paid directly by Company	60
Estimated total company contributions	60
Actual Company contributions
Cash contributions paid by the Company	100	0
Benefits paid directly by the Company	58	51
Total Company contributions	158	51
Non - U.S. Pension Plans
Defined Benefit Plan, Estimated Future Employer Contributions [Abstract]
Estimated future cash contributions	86
Estimated benefits paid directly by Company	47
Estimated total company contributions	133
Actual Company contributions
Cash contributions paid by the Company	130	308
Benefits paid directly by the Company	100	49
Total Company contributions	230	357
Postretirement Benefit Plans
Amounts that will be amortized from accumulated other comprehensive income (loss) into net expense in next fiscal year
Future amortization of gain (loss)	45
Future amortization of prior service cost (credit)	12
U.S. Postretirement Benefit Plans
Defined Benefit Plan, Estimated Future Employer Contributions [Abstract]
Estimated future cash contributions	0
Estimated benefits paid directly by Company	63
Estimated total company contributions	63
Actual Company contributions
Cash contributions paid by the Company	0	0
Benefits paid directly by the Company	56	52
Total Company contributions	56	52
Non-U.S. Postretirement Benefit Plans
Defined Benefit Plan, Estimated Future Employer Contributions [Abstract]
Estimated future cash contributions	77
Estimated benefits paid directly by Company	6
Estimated total company contributions	83
Actual Company contributions
Cash contributions paid by the Company	6	251
Benefits paid directly by the Company	6	5
Total Company contributions	$ 12	$ 256

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Represents the amount of benefits paid directly to plan participants by the entity during the period.

+ References

No definition available.

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Represents the amount of cash contributions to plan assets made by the entity during the period.

+ References

No definition available.

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Defined Benefit Plan Estimated Future Employer Contributions Cash Payment

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Defined Benefit Plan Estimated Future Employer Contributions Direct Payment

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The increase in the fair value of plan assets from contributions made by the employer.

+ 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 (b)(3)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

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Amount included in accumulated other comprehensive income (AOCI) related to gain (loss) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position.

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No definition available.

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Amount included in accumulated other comprehensive income (AOCI) related to prior service cost (credit) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position.

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No definition available.

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Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.

+ 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 (g)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

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