PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Basis of Fair Value Measurements of Other Postretirement Benefit Plan Assets) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 154		$ 238		$ 367
Other Postretirement Benefits [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	41		70
Other Postretirement Benefits [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	113		168
Other Postretirement Benefits [Member] | Total [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	154		238
Cash and Cash Equivalents [Member] | Other Postretirement Benefits [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
Cash and Cash Equivalents [Member] | Other Postretirement Benefits [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	63		39
Cash and Cash Equivalents [Member] | Other Postretirement Benefits [Member] | Total [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	63		39
Equity Securities [Member] | Other Postretirement Benefits [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	41	[1],[2]	66	[1]
Equity Securities [Member] | Other Postretirement Benefits [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	17	[1],[2]	0	[1]
Equity Securities [Member] | Other Postretirement Benefits [Member] | Total [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	58	[1],[2]	66	[1]
Company common stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			13
Company common stock [Member] | Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
Fixed Income Securities [Member] | Other Postretirement Benefits [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[2]	4
Fixed Income Securities [Member] | Other Postretirement Benefits [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	33	[2]	129
Fixed Income Securities [Member] | Other Postretirement Benefits [Member] | Total [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 33	[2]	$ 133

[1] Included no common stock of the Company.

[2] In 2011, convertible bonds were moved from fixed income securities to equity securities for asset allocation purposes.