PENSION AND POSTRETIREMENT BENEFIT PLANS (Estimated Future Benefit Payments) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011
Pension Benefits [Member]
Pension, Postretirement And Postemployment Liabilities Statement [Line Items]
Expected future benefit payments, 2012	$ 384
Expected future benefit payments, 2013	395
Expected future benefit payments, 2014	406
Expected future benefit payments, 2015	407
Expected future benefit payments, 2016	415
Expected future benefit payments, 2017-2021	2,083
Other Benefits [Member]
Pension, Postretirement And Postemployment Liabilities Statement [Line Items]
Expected future benefit payments, 2012	50
Expected future benefit payments, 2013	51
Expected future benefit payments, 2014	47
Expected future benefit payments, 2015	45
Expected future benefit payments, 2016	44
Expected future benefit payments, 2017-2021	$ 202