EMPLOYEE BENEFIT PLANS (Details 4) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011
Pension Benefits
Expected Benefit Payments
2012	$ 73.4
2013	66.8
2014	61.8
2015	63.3
2016	65.5
2017 - 2021	315.5
Excluding Medicare Subsidy
Expected Benefit Payments
2012	11.1
2013	11.8
2014	12.6
2015	13.4
2016	14.0
2017 - 2021	78.6
Including Medicare Subsidy
Expected Benefit Payments
2012	10.8
2013	11.5
2014	12.3
2015	13.1
2016	13.7
2017 - 2021	$ 77.3

The amount of the aggregate benefits expected to be paid in the five fiscal years thereafter (the aggregate amount of benefits expected to be paid in years 6 through 10 after the date of the latest statement of financial position).

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph f

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant