The decrease in plans' discount rate during the period.

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The percentage of other hedge funds included in investment.

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The increase in the fair value of plan assets from cash contributions made by the employer.

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No definition available.

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Contribution to an individual retirement account as a percentage of employee's eligible compensation age 45 and older.

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Contribution to an individual retirement account as a percentage of employee's eligible compensation under age 45.

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- Definition

The historic rate of return on plan assets for last fifteen years.

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The historic rate of return on plan assets.

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The historic rate of return on plan assets in for last ten years.

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The percentage of alternative investment included in asset allocation.

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The percentage of cash and fixed income investment included in asset allocation.

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The percentage of equity investment included in asset allocation.

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- Definition

The percentage of event driven hedge fund included in investments.

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The percentage of market neutral hedge funds included in investment.

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- Definition

Aftertax change in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan, that has not been recognized in net periodic benefit cost.

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No definition available.

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- Definition

The minimum par value of non-callable bonds used to determine the hypothetical yield curve used to determine that discount rate.

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No definition available.

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- Definition

The amount of acquisition cost of a business combination allocated to other noncurrent liabilities of the acquired entity.

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The net increase or decrease of changes in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan.

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The amounts in accumulated other comprehensive income related to gains and losses that are not recognized immediately and are expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented.

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1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

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The employer's best estimate, as soon as it can be reasonably determined, of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions.

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The amount of the benefits expected to be paid in Year 5.

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The amount of the benefits expected to be paid in Year 4.

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The amount of the benefits expected to be paid in Year 1.

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The amount of the benefits expected to be paid in Year 3.

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The amount of the benefits expected to be paid in Year 2.

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The aggregate amount of net gain (loss) recognized in net periodic benefit cost due to settlements and curtailments. Curtailments result from an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services. Settlements result from an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include (a) making lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and (b) purchasing nonparticipating annuity contracts to cover vested benefits.

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Amount of a recognized obligation to a multiemployer plan in the event that the employer withdraws from the plan. In some situations, withdrawal from a multiemployer plan may result in an employer having an obligation to the plan for a portion of the unfunded benefit obligation of the pension plans and other postretirement benefit plans.

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Pretax change in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan, that has not been recognized in net periodic benefit cost.

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The amount of pension benefit costs recognized during the period for (1) defined benefit plans and (2) defined contribution plans. For defined benefit plans, pension expense includes the following components: service cost, interest cost, expected return on plan assets, gain (loss) on plan assets, prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. For defined contribution plans, the pension expense generally equals the firm's contribution to employees' accounts (if the firm contributes) during the period.

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PENSION PLANS (Detail textuals) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Mar. 31, 2010
Compensation and Retirement Disclosure [Abstract]
Contribution to an individual retirement account as a percentage of employee's eligible compensation under age 45 (in hundredths)	5.00%
Contribution to an individual retirement account as a percentage of employee's eligible compensation age 45 and older (in hundredths)	7.50%
Expenses of the defined contribution pension plans	$ 16.1	$ 14.6	$ 13.3
Business Acquisition, Purchase Price Allocation, Other Noncurrent Liabilities	10.0
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Amortization of Net Gains (Losses)	30
After-tax charge to shareholders' equity	99.0	25.9
Pretax amount of after-tax charge recorded in shareholders' equity	162.0	41.8	38.7
Actuarial loss	223.1	136.3
Defined Benefit Plan, Benefit Obligation	2,139.2	1,949.4	1,845.6
Basis point decrease in the plans' discount rate reflected in charge to shareholders' equity	100	40
Projected benefit payments [Abstract]
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments	0	1.1	3.2
Par outstanding value of bonds used to determine the discount rate yield curve	250
Historic rate of return on plan assets in the last 5 year period (in hundredths)	9.50%
Historic rate of return on plan assets in the last 10 year period (in hundredths)	12.30%
Historic rate of return on plan assets in the last 15 year period (in hundredths)	9.00%
Cash Employer contributions	0.9	0.9
Percentage of event driven hedge funds included in asset allocation (in hundredths)	20.00%	20.00%
Percentage of market neutral hedge funds included in asset allocation (in hundredths)	35.00%	35.00%
Percentage of other hedge funds investments included in asset allocation (in hundredths)	45.00%	45.00%
Percentage of equities investment included in asset allocation (in hundredths)	25.00%	25.00%
Percentage of cash and fixed income investment included in asset allocation (in hundredths)	65.00%	60.00%
Percentage of alternative investments included in asset allocation (in hundredths)	10.00%	15.00%
Withdrawal from a multi-employer defined benefit pension plan				1.3
Anticipated employer contribution for next year	5
Qualified Pension Plan [Member]
Projected benefit payments [Abstract]
2013	121.8
2014	117.3
2015	113.8
2016	110.6
2017	107.5
Non-Qualified Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Benefit Obligation	66.8	61.7
Projected benefit payments [Abstract]
2013	6.2
2014	14.5
2015	3.3
2016	5.5
2017	$ 4.7