PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Defined Benefit Pension Plans [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	$ 7	$ 6	$ 21	$ 18
Interest cost	47	50	141	150
Expected return on plan assets	(59)	(64)	(177)	(190)
Amortization of prior service cost	2	2	6	6
Amortization of net loss	15	21	45	63
Net periodic benefit cost	12	15	36	47
Other Postretirement Benefits [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Interest cost	4	5	12	15
Net periodic benefit cost	$ 4	$ 5	$ 12	$ 15