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ENVIRONMENTAL MATTERS AND ASSET RETIREMENT OBLIGATIONS (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Site Contingency [Line Items]
Portion Of Environmental Reserve Related To Previously Closed, Impaired, And Divested Sites	$ 8	$ 8
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning of period	336
End of period	325
Accrual for Environmental Loss Contingencies, Balance Sheet Classification [Abstract]
Accrued Environmental Loss Contingencies, Current	30	35
Accrued Environmental Loss Contingencies, Noncurrent	295	301
Environmental Remediation [Member]
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning of period	308
Changes in estimates recognized in earnings and other	10
Cash reductions	(18)
End of period	$ 300
Expected Payment Period of Environmental Contingencies	approximately 30 years
Environmental ARO [Member]
Site Contingency [Line Items]
Best Estimate Accrued to-date For Asset Retirement Obligation	$ 25	28
Non Environmental ARO [Member]
Site Contingency [Line Items]
Best Estimate Accrued to-date For Asset Retirement Obligation	46	46
Minimum [Member] | Environmental Remediation [Member]
Site Contingency [Line Items]
Loss Contingency, Estimate of Possible Loss	300	308
Maximum [Member] | Environmental Remediation [Member]
Site Contingency [Line Items]
Loss Contingency, Estimate of Possible Loss	$ 510	$ 516

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Expected period over which payments for aggregated environmental contingent liabilities will be paid.

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Total costs accrued as of the balance sheet date for environmental loss contingencies.

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Amount of expense (reversal of expense) which increases (decreases) the accrual for environmental loss contingencies from revisions in estimates to existing obligations. Excludes changes related to business acquisitions, divestitures, or currency movement.

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Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.

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