FINANCIAL INSTRUMENTS (Schedule of Fair Values of Derivative Instruments) (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	$ 99	$ 122
Derivative liability, fair value	350	281
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	2	29
Derivative liability, fair value	261	118
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	97	93
Derivative liability, fair value	89	163
Accounts and Notes Receivable - Other [Member] | Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	1	25
Accounts and Notes Receivable - Other [Member] | Not Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	93	91
Other Current Assets [Member] | Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	1	4
Other Current Assets [Member] | Not Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	4	2
Accounts Payable - Other [Member] | Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	10	12
Accounts Payable - Other [Member] | Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	29	58
Accounts Payable - Other [Member] | Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	8	0
Accounts Payable - Other [Member] | Not Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	3	2
Accounts Payable - Other [Member] | Not Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	86	161
Other Noncurrent Obligations [Member] | Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	$ 214	$ 48