INCOME TAXES (Reserve for Unrecognized tax benefits, interest and penalties) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Reserve for unrecognized tax benefits, interest and penalties, type [Line Items]
High Range Unrecognized Tax Benefit Decrease	$ 101
Low Range Unrecognized Tax Benefit Decrease	25
Unrecognized Tax Benefits [Member]
Reserve for unrecognized tax benefits, interest and penalties, type [Line Items]
Unrecognized Tax Benefits, Beginning Balance	200	253
Additions: [Abstract]
Prior year tax positions	25	9
Current year tax positions	16	24
Interest and penalties	0	0
Decreases: [Abstract]
Prior year tax positions	(34)	(26)
Current year tax positions	(8)	0
Lapse of statute of limitations	(53)	(60)
Interest and penalties	0	0
Unrecognized Tax Benefits, Ending Balance	146	200
Interest [Member]
Reserve for unrecognized tax benefits, interest and penalties, type [Line Items]
Unrecognized Tax Benefits, Beginning Balance	33	34
Additions: [Abstract]
Interest and penalties	7	2
Decreases: [Abstract]
Interest and penalties	(6)	(3)
Unrecognized Tax Benefits, Ending Balance	34	33
Penalties [Member]
Reserve for unrecognized tax benefits, interest and penalties, type [Line Items]
Unrecognized Tax Benefits, Beginning Balance	0	0
Additions: [Abstract]
Interest and penalties	0	0
Decreases: [Abstract]
Interest and penalties	0	0
Unrecognized Tax Benefits, Ending Balance	$ 0	$ 0