FAIR VALUE MEASUREMENTS (Additional Information) (Details) (Significant Unobservable Inputs (Level 3) [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period, fair value measurements using Level 3 inputs	$ 1,328	[1]	$ 1,227	[1]
Loss included in earnings, fair value measurements using Level 3 inputs	1	[1],[2]	(1)	[1],[2]
Purchases, fair value measurements using Level 3 inputs	219	[1]	263	[1]
Settlements, fair value measurements using Level 3 inputs	(285)	[1]	(150)	[1]
Balance at end of period, fair value measurements using Level 3 inputs	$ 1,263	[1]	$ 1,339	[1]

[1] Included in “Accounts and notes receivable – Other” in the consolidated balance sheets.

[2] Included in “Selling, general and administrative expenses” in the consolidated statements of income.