ACCOUNTING POLICIES (Details 4)	12 Months Ended
Dec. 31, 2012
Nonunion Defined Benefit Pension, Supplemental Benefit Pension, and Postretirement Health Plans
Period of estimate of future compensation rates used to establish the assumed rate of compensation increase	2 years
Restricted Stock Awards
Share-Based Compensation
Vesting period	5 years
Restricted Stock Awards \| Nonemployee director
Share-Based Compensation
Vesting period	3 years
Stock Options
Share-Based Compensation
Vesting period	5 years
Expiration period	10 years

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Period Type:	duration