STOCK OWNERSHIP AND COMPENSATION PLANS (Supplemental Deferred Compensation Plans) (Details) (USD $)	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Prior company match percentage of employee contributions	6.00%
Amended company match percentage of employee contributions	5.00%
Cash surrender value of life insurance policies	$ 25,018,000	$ 20,936,000
Supplemental Deferred Compensation Plan [Member]
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
SDCP salary deferral	50.00%
SDCP variable incentive compensation deferral	95.00%
Company match percentage of employee contributions	6.00%
Prior company match percentage of employee contributions	6.00%
Amended company match percentage of employee contributions	5.00%
SDCP accrual	52,000,000	47,000,000
Funds in a trust pertaining to all participant deferrals and company matching amounts related to the SDCP	52,000,000	47,000,000
SDCP II [Member]
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Company match percentage of employee contributions	25.00%
SDCP accrual	30,000,000	25,000,000
SDCP salary deferral monetary	20,000
Deferred compensation arrangement with individual, employer contribution	5,000
SDCP II vesting period	four
SDCP II graded vesting percentage	25.00%
Cash surrender value of life insurance policies	$ 25,000,000	$ 21,000,000

Amended Company Match Percentage of Employee Contributions

No definition available.

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- Definition

The maximum matching contribution percentage made by employer of a participant's contributions into its or supplemental deferred compensation plans.

+ References

No definition available.

+ Details

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- Definition

Funds in a trust pertaining to all participant deferrals and company matching amounts related to the Supplemental Deferred Compensation Plan.

+ References

No definition available.

+ Details

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- Definition

Prior Company Match Percentage of Employee Contributions

+ References

No definition available.

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- Definition

SDCP II graded vesting percentage

+ References

No definition available.

+ Details

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- Definition

Monetary amount of salary deferral under the Supplemental Deferred Compensation Plan. This plan is anon-qualified plans that provides for certain management and highly compensated employees to defer up to this percentage or monetary amount of their annual salary in excess of their defined contribution plan limits.

+ References

No definition available.

+ Details

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- Definition

Percentage of salary deferral under the Supplemental Deferred Compensation Plan. This plans is an unfunded, non-qualified plan that provides for certain management and highly compensated employees to defer up to this percentage of their annual salary in excess of their defined contribution plan limits.

+ References

No definition available.

+ Details

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- Definition

Deferral percentage of the variable incentive compensation under the Supplemental Deferred Compensation Plan. The plan is an unfunded, non-qualified plan that provides for certain management and highly compensated eligible employees to defer up to this percentage of their variable incentive compensation.

+ References

No definition available.

+ Details

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This element represents the portion of a balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount that could be realized under a life insurance contract or contracts owned by the Company as of the date of the statement of financial position. Such Company-owned life insurance policies are commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Surrender Value

-URI http://asc.fasb.org/extlink&oid=6507153

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-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 88-5

-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.

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-Publisher FASB

-Name FASB Technical Bulletin (FTB)

-Number 85-4

-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.

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- Definition

The amount of payment into the fund established for purposes of making future disbursements to the individual in accordance with the terms and understanding of the deferred compensation arrangement.

+ References

No definition available.

+ Details

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- Definition

The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64, 65

-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.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 710

-SubTopic 10

-Section 30

-Paragraph 1

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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 6, 7

-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.

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- Definition

The minimum period that the individual is required to perform services in order to be fully vested under the deferred compensation arrangement.

+ References

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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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph a

-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 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64, 65, A240

-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.

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