EMPLOYEE BENEFIT PLANS, Net Periodic Benefit Cost and Amounts Recognized in Other Comprehensive Loss (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Pension Benefits [Member]
Components of Net Periodic Benefit Cost [Abstract]
Service cost	$ 9	$ 8	$ 8
Interest cost	20	19	19
Expected return on plan assets	(23)	(21)	(20)
Amortization of net loss	9	8	12
Amortization of prior service cost	1	1	1
Net periodic benefit cost	16	15	20
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (net of tax) [Abstract]
Net loss (gain)	45	5	(10)
Amortization of unrecognized (loss) gain	(5)	(5)	(7)
Prior service (credit) cost	(22)	0	1
Amortization of prior service cost	(1)	(1)	(1)
Total recognized in other comprehensive income	17	(1)	(17)
Total recognized in net periodic benefit cost and other comprehensive income	33	14	3
Other Post-retirement Benefits [Member]
Components of Net Periodic Benefit Cost [Abstract]
Service cost	1	1	1
Interest cost	4	3	3
Expected return on plan assets	0	0	0
Amortization of net loss	2	0	0
Amortization of prior service cost	0	0	0
Net periodic benefit cost	7	4	4
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (net of tax) [Abstract]
Net loss (gain)	(4)	6	1
Amortization of unrecognized (loss) gain	(1)	(2)	0
Prior service (credit) cost	0	0	0
Amortization of prior service cost	0	0	0
Total recognized in other comprehensive income	(5)	4	1
Total recognized in net periodic benefit cost and other comprehensive income	2	8	5
Non-qualified Benefit Plans [Member]
Components of Net Periodic Benefit Cost [Abstract]
Net periodic benefit cost	$ 2	$ 9	$ 3