PENSION AND POSTRETIREMENT BENEFIT PLANS (Net Periodic Benefit Cost) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Pension, Postretirement And Postemployment Liabilities Statement [Line Items]
Percentage of plan assets and obligations attributable to the principal defined benefit pension plan	70.00%
Net actuarial loss and prior service cost expected to be amortized from accumulated other comprehensive income into net prierodic benefit cost during 2012	$ 147
Expected weighted-average remaining lives of plan participants, which is the period over which actuarial gain/loss is amortized	30
Defined contribution plan expense	190	181	188
Postemployment benefits liability	90	92
Postemployment benefit expense	17	18	18
Termination indemnity plan obligations	29	25
Pension Benefits [Member]
Pension, Postretirement And Postemployment Liabilities Statement [Line Items]
Service cost - benefits earned during the year	32	43	44
Interest cost on projected benefit obligation	319	337	347
Expected return on plan assets	(508)	(464)	(453)
Amortization of prior service cost/(benefit)	(3)	(1)
Amortization of net actuarial loss	129	112	95
Curtailments	(1)	(3)	5
Settlements	160	15	22
Special termination benefits			1
Net periodic benefit cost	128	39	61
Expected contributions to pension plans	100
Other Benefits [Member]
Pension, Postretirement And Postemployment Liabilities Statement [Line Items]
Service cost - benefits earned during the year	8	8	6
Interest cost on projected benefit obligation	22	26	30
Expected return on plan assets	(25)	(26)	(24)
Amortization of prior service cost/(benefit)	(2)	(3)	(3)
Amortization of net actuarial loss	10	7	10
Curtailments		(1)
Net periodic benefit cost	13	11	19
United States Pension Plans [Member]
Pension, Postretirement And Postemployment Liabilities Statement [Line Items]
Settlements	151
Contributions to pension plan	335	343	341
International Pension Plans [Member]
Pension, Postretirement And Postemployment Liabilities Statement [Line Items]
Contributions to pension plan	$ 61	$ 88	$ 90