ÐÇ¿Õ´«Ã½

Annual report pursuant to Section 13 and 15(d)

Pensions And Other Postretirement Benefits

v2.4.0.6
Pensions And Other Postretirement Benefits
12 Months Ended
Dec. 31, 2011
Pensions And Other Postretirement Benefits [Abstract] Ìý
Pensions And Other Postretirement Benefits

NOTE 10 — PENSIONS AND OTHER POSTRETIREMENT BENEFITS

We offer defined benefit pension plans, defined contribution pension plans and other postretirement benefit plans, primarily consisting of retiree healthcare benefits, to most employees in North America as part of a total compensation and benefits program. This includes employees of CLCC who became employees of the Company through the July 2010 acquisition. Upon the acquisition of the remainingÌý73.2 percent interest in Wabush in February 2010, we fully consolidated the related Canadian plans into our pension and OPEB obligations. We do not have employee retirement benefit obligations at our Asia Pacific Iron Ore operations. The defined benefit pension plans largely are noncontributory and benefits generally are based on employees' years of service and average earnings for a defined period prior to retirement or a minimum formula.

On October 6, 2008, the USW ratified four-year labor contracts, which replaced the labor agreements that expired on September 1, 2008. The agreements cover approximatelyÌý2,400 USW-represented employees at our Empire and Tilden mines in Michigan and our United Taconite and Hibbing mines in Minnesota, orÌý32 percent of our total workforce. The changes enhanced the minimum pension formula by increasing the benefit dollar multipliers and renewed the lump sum special payments for certain employees retiring in the near future. The changes also included renewal of payments to surviving spouses of certain retirees. These agreements are effective through August 31, 2012.

In addition, we currently provide various levels of retirement health care and OPEB to most full-time employees who meet certain length of service and age requirements (a portion of which are pursuant to collective bargaining agreements). Most plans require retiree contributions and have deductibles, co-pay requirements and benefit limits. Most bargaining unit plans require retiree contributions and co-pays for major medical and prescription drug coverage. There is an annual limit on our cost for medical coverage under the U.S. salaried plans. The annual limit applies to each covered participant and equals $7,000 for coverage prior to age 65 and $3,000 for coverage after age 65, with the retiree's participation adjusted based on the age at which the retiree's benefits commence. For participants at our Northshore operation, the annual limit ranges from $4,020 to $4,500 for coverage prior to age 65, and equals $2,000 for coverage after age 65. Covered participants pay an amount for coverage equal to the excess of (i) the average cost of coverage for all covered participants, over (ii) the participant's individual limit, but in no event will the participant's cost be less thanÌý15 percent of the average cost of coverage for all covered participants. For Northshore participants, the minimum participant cost is a fixed dollar amount. We do not provide OPEB for most U.S. salaried employees hired after January 1, 1993. OPEB are provided through programs administered by insurance companies whose charges are based on benefits paid.

Our North American Coal segment is required under an agreement with the UMWA to pay amounts into the UMWA pension trusts based principally on hours worked by UMWA-represented employees. This agreement covers 810 UMWA-represented employees at our Pinnacle Complex in West Virginia and our Oak Grove mine in Alabama, orÌý11 percent of our total workforce. These multi-employer pension trusts provide benefits to eligible retirees through a defined benefit plan. The UMWA 1993 Benefit Plan is a defined contribution plan that was created as the result of negotiations for the NBCWA of 1993. The plan provides healthcare insurance to orphan UMWA retirees who are not eligible to participate in the UMWA Combined Benefit Fund or the 1992 Benefit Fund or whose last employer signed the 1993 or later NBCWA and who subsequently goes out of business. Contributions to the trust were at rates of $6.50, $6.42 and $5.27 per hour worked in 2011, 2010 and 2009, respectively. These amounted to $9.5 million, $10.3 million and $6.1 million in 2011, 2010 and 2009, respectively.

Pursuant to the four-year labor agreements reached with the USW for U.S. employees, effective January 1, 2009, negotiated plan changes removed the cap on our share of future bargaining unit retirees' healthcare premiums and provided a maximum on the amount retirees will contribute for health care benefits during the term of the respective agreement. The agreements also provide that we and our partners fund an estimated $90 million into bargaining unit pension plans and VEBAs during the term of the agreements.

In December 2003, The Medicare Prescription Drug, Improvement, and Modernization Act of 2003 was enacted. This act introduced a prescription drug benefit under Medicare Part D as well as a federal subsidy to sponsors of retiree healthcare benefit plans that provide a benefit that at least actuarially is equivalent to Medicare Part D. Our measures of the accumulated postretirement benefit obligation and net periodic postretirement benefit cost as of December 31, 2004 and for periods thereafter reflect amounts associated with the subsidy. We elected to adopt the retroactive transition method for recognizing the OPEB cost reduction in 2004. The following table summarizes the annual costs related to the retirement plans for 2011, 2010 and 2009:

Ìý

Ìý ÌýÌý (In Millions) Ìý
Ìý ÌýÌý 2011 Ìý ÌýÌý 2010 Ìý ÌýÌý 2009 Ìý

Defined benefit pension plans

ÌýÌý $ 37.8 ÌýÌý ÌýÌý $ 45.6 ÌýÌý ÌýÌý $ 50.8 ÌýÌý

Defined contribution pension plans

ÌýÌý Ìý 5.7 ÌýÌý ÌýÌý Ìý 4.2 ÌýÌý ÌýÌý Ìý 2.1 ÌýÌý

Other postretirement benefits

ÌýÌý Ìý 26.8 ÌýÌý ÌýÌý Ìý 24.2 ÌýÌý ÌýÌý Ìý 25.5 ÌýÌý
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Ìý ÌýÌý

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Total

ÌýÌý $ 70.3 ÌýÌý ÌýÌý $ 74.0 ÌýÌý ÌýÌý $ 78.4 ÌýÌý
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The following tables and information provide additional disclosures for our consolidated plans.

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Obligations and Funded Status

The following tables and information provide additional disclosures for the years ended December 31, 2011 and 2010:

Ìý ÌýÌý (In Millions) Ìý
Ìý ÌýÌý Pension Benefits Ìý Ìý Other Benefits Ìý

Change in benefit obligations:

ÌýÌý 2011 Ìý Ìý 2010 Ìý Ìý 2011 Ìý Ìý 2010 Ìý

Benefit obligations — beginning of year

ÌýÌý $ 1,022.3 ÌýÌý Ìý $ 750.8 ÌýÌý Ìý $ 440.2 ÌýÌý Ìý $ 333.0 ÌýÌý

Service cost (excluding expenses)

ÌýÌý Ìý 23.6 ÌýÌý Ìý Ìý 18.5 ÌýÌý Ìý Ìý 11.1 ÌýÌý Ìý Ìý 7.5 ÌýÌý

Interest cost

ÌýÌý Ìý 51.4 ÌýÌý Ìý Ìý 52.9 ÌýÌý Ìý Ìý 22.3 ÌýÌý Ìý Ìý 22.0 ÌýÌý

Plan amendments

ÌýÌý Ìý —ÌýÌý ÌýÌý Ìý Ìý 3.7 ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý

Actuarial loss

ÌýÌý Ìý 117.3 ÌýÌý Ìý Ìý 57.5 ÌýÌý Ìý Ìý 36.5 ÌýÌý Ìý Ìý 43.6 ÌýÌý

Benefits paid

ÌýÌý Ìý (67.3 )Ìý Ìý Ìý (67.0 )Ìý Ìý Ìý (25.5 )Ìý Ìý Ìý (28.2 )Ìý

Participant contributions

ÌýÌý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý 4.6 ÌýÌý Ìý Ìý 6.2 ÌýÌý

Federal subsidy on benefits paid

ÌýÌý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý 0.9 ÌýÌý Ìý Ìý 0.9 ÌýÌý

Exchange rate gain

ÌýÌý Ìý (5.9 )Ìý Ìý Ìý 10.2 ÌýÌý Ìý Ìý (1.7 )Ìý Ìý Ìý 2.9 ÌýÌý

Acquired through business combinations

ÌýÌý Ìý —ÌýÌý ÌýÌý Ìý Ìý 195.7 ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý 52.3 ÌýÌý
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Benefit obligations — end of year

ÌýÌý $ 1,141.4 ÌýÌý Ìý $ 1,022.3 ÌýÌý Ìý $ 488.4 ÌýÌý Ìý $ 440.2 ÌýÌý
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Change in plan assets:

ÌýÌý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý

Fair value of plan assets — beginning of year

ÌýÌý $ 734.3 ÌýÌý Ìý $ 483.4 ÌýÌý Ìý $ 174.2 ÌýÌý Ìý $ 136.7 ÌýÌý

Actual return on plan assets

ÌýÌý Ìý 10.8 ÌýÌý Ìý Ìý 87.1 ÌýÌý Ìý Ìý 1.9 ÌýÌý Ìý Ìý 20.1 ÌýÌý

Participant contributions

ÌýÌý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý 1.6 ÌýÌý Ìý Ìý 1.6 ÌýÌý

Employer contributions

ÌýÌý Ìý 70.1 ÌýÌý Ìý Ìý 45.6 ÌýÌý Ìý Ìý 23.2 ÌýÌý Ìý Ìý 23.7 ÌýÌý

Asset transfers

ÌýÌý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý

Benefits paid

ÌýÌý Ìý (67.3 )Ìý Ìý Ìý (67.0 )Ìý Ìý Ìý (7.4 )Ìý Ìý Ìý (7.9 )Ìý

Exchange rate gain

ÌýÌý Ìý (3.8 )Ìý Ìý Ìý 8.9 ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý

Acquired through business combinations

ÌýÌý Ìý —ÌýÌý ÌýÌý Ìý Ìý 176.3 ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý
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Fair value of plan assets — end of year

ÌýÌý $ 744.1 ÌýÌý Ìý $ 734.3 ÌýÌý Ìý $ 193.5 ÌýÌý Ìý $ 174.2 ÌýÌý
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Funded status at DecemberÌý31:

ÌýÌý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý

Fair value of plan assets

ÌýÌý $ 744.1 ÌýÌý Ìý $ 734.3 ÌýÌý Ìý $ 193.5 ÌýÌý Ìý $ 174.2 ÌýÌý

Benefit obligations

ÌýÌý Ìý (1,141.4 )Ìý Ìý Ìý (1,022.3 )Ìý Ìý Ìý (488.4 )Ìý Ìý Ìý (440.2 )Ìý
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Funded status (plan assets less benefit obligations)

ÌýÌý $ (397.3 )Ìý Ìý $ (288.0 )Ìý Ìý $ (294.9 )Ìý Ìý $ (266.0 )Ìý
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Amount recognized at DecemberÌý31

ÌýÌý $ (397.3 )Ìý Ìý $ (288.0 )Ìý Ìý $ (294.9 )Ìý Ìý $ (266.0 )Ìý
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Amounts recognized in Statements of Financial Position:

ÌýÌý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý

Current liabilities

ÌýÌý $ (2.6 )Ìý Ìý $ (3.1 )Ìý Ìý $ (23.8 )Ìý Ìý $ (22.9 )Ìý

Noncurrent liabilities

ÌýÌý Ìý (394.7 )Ìý Ìý Ìý (284.9 )Ìý Ìý Ìý (271.1 )Ìý Ìý Ìý (243.1 )Ìý
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Net amount recognized

ÌýÌý $ (397.3 )Ìý Ìý $ (288.0 )Ìý Ìý $ (294.9 )Ìý Ìý $ (266.0 )Ìý
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Amounts recognized in accumulated other comprehensive income:

ÌýÌý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý

Net actuarial loss

ÌýÌý $ 409.1 ÌýÌý Ìý $ 269.3 ÌýÌý Ìý $ 182.9 ÌýÌý Ìý $ 152.3 ÌýÌý

Prior service cost

ÌýÌý Ìý 18.8 ÌýÌý Ìý Ìý 24.2 ÌýÌý Ìý Ìý 8.1 ÌýÌý Ìý Ìý 11.8 ÌýÌý

Transition asset

ÌýÌý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý (3.0 )Ìý Ìý Ìý (5.7 )Ìý
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Net amount recognized

ÌýÌý $ 427.9 ÌýÌý Ìý $ 293.5 ÌýÌý Ìý $ 188.0 ÌýÌý Ìý $ 158.4 ÌýÌý
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The estimated amounts that will be amortized from accumulated other
comprehensive income into net periodic benefit cost in 2012:

ÌýÌý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý

Net actuarial loss

ÌýÌý $ 29.5 ÌýÌý Ìý Ìý $ 11.4 ÌýÌý Ìý

Prior service cost

ÌýÌý Ìý 3.9 ÌýÌý Ìý Ìý Ìý 3.0 ÌýÌý Ìý

Transition asset

ÌýÌý Ìý —ÌýÌý ÌýÌý Ìý Ìý Ìý (3.0 )Ìý Ìý
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Ìý Ìý Ìý

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Net amount recognized

ÌýÌý $ 33.4 ÌýÌý Ìý Ìý $ 11.4 ÌýÌý Ìý
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Ìý ÌýÌý (In Millions) Ìý
Ìý ÌýÌý 2011 Ìý
Ìý ÌýÌý Pension Plans Ìý Ìý Other Benefits Ìý
Ìý ÌýÌý Salaried Ìý Ìý Hourly Ìý Ìý Mining Ìý Ìý SERP Ìý Ìý Total Ìý Ìý Salaried Ìý Ìý Hourly Ìý Ìý Total Ìý

Fair value of plan assets

ÌýÌý $ 289.1 ÌýÌý Ìý $ 451.8 ÌýÌý Ìý $ 3.2 ÌýÌý Ìý Ìý $—ÌýÌý ÌýÌý Ìý $ 744.1 ÌýÌý Ìý $ —ÌýÌý ÌýÌý Ìý $ 193.5 ÌýÌý Ìý $ 193.5 ÌýÌý

Benefit obligation

ÌýÌý Ìý (419.3 )Ìý Ìý Ìý (708.0 )Ìý Ìý Ìý (5.3 )Ìý Ìý Ìý (8.8 )Ìý Ìý Ìý (1,141.4 )Ìý Ìý Ìý (70.7 )Ìý Ìý Ìý (417.7 )Ìý Ìý Ìý (488.4 )Ìý

Funded status

ÌýÌý $ (130.2 )Ìý Ìý $ (256.2 )Ìý Ìý $ (2.1 )Ìý Ìý $ (8.8 )Ìý Ìý $ (397.3 )Ìý Ìý $ (70.7 )Ìý Ìý $ (224.2 )Ìý Ìý $ (294.9 )Ìý
Ìý ÌýÌý 2010 Ìý
Ìý ÌýÌý Pension Plans Ìý Ìý Other Benefits Ìý
Ìý ÌýÌý Salaried Ìý Ìý Hourly Ìý Ìý Mining Ìý Ìý SERP Ìý Ìý Total Ìý Ìý Salaried Ìý Ìý Hourly Ìý Ìý Total Ìý

Fair value of plan assets

ÌýÌý $ 275.3 ÌýÌý Ìý $ 456.7 ÌýÌý Ìý $ 2.3 ÌýÌý Ìý Ìý $—ÌýÌý ÌýÌý Ìý $ 734.3 ÌýÌý Ìý $ —ÌýÌý ÌýÌý Ìý $ 174.2 ÌýÌý Ìý $ 174.2 ÌýÌý

Benefit obligation

ÌýÌý Ìý (373.8 )Ìý Ìý Ìý (635.3 )Ìý Ìý Ìý (4.4 )Ìý Ìý Ìý (8.8 )Ìý Ìý Ìý (1,022.3 )Ìý Ìý Ìý (63.7 )Ìý Ìý Ìý (376.5 )Ìý Ìý Ìý (440.2 )Ìý

Funded status

ÌýÌý $ (98.5 )Ìý Ìý $ (178.6 )Ìý Ìý $ (2.1 )Ìý Ìý $ (8.8 )Ìý Ìý $ (288.0 )Ìý Ìý $ (63.7 )Ìý Ìý $ (202.3 )Ìý Ìý $ (266.0 )Ìý

The accumulated benefit obligation for all defined benefit pension plans was $1,114.7 million and $997.2 million at December 31, 2011 and 2010, respectively. The increase in the accumulated benefit obligation primarily is a result of a decrease in the discount rates and actual asset returns lower than the previously assumed rate.

Components of Net Periodic Benefit Cost

Ìý

Ìý ÌýÌý (In Millions) Ìý
Ìý ÌýÌý Pension Benefits Ìý Ìý Other Benefits Ìý
Ìý ÌýÌý 2011 Ìý Ìý 2010 Ìý Ìý 2009 Ìý Ìý 2011 Ìý Ìý 2010 Ìý Ìý 2009 Ìý

Service cost

ÌýÌý $ 23.6 ÌýÌý Ìý $ 18.5 ÌýÌý Ìý $ 14.3 ÌýÌý Ìý $ 11.1 ÌýÌý Ìý $ 7.5 ÌýÌý Ìý $ 5.4 ÌýÌý

Interest cost

ÌýÌý Ìý 51.4 ÌýÌý Ìý Ìý 52.9 ÌýÌý Ìý Ìý 42.6 ÌýÌý Ìý Ìý 22.3 ÌýÌý Ìý Ìý 22.0 ÌýÌý Ìý Ìý 18.9 ÌýÌý

Expected return on plan assets

ÌýÌý Ìý (61.2 )Ìý Ìý Ìý (53.3 )Ìý Ìý Ìý (37.1 )Ìý Ìý Ìý (16.1 )Ìý Ìý Ìý (12.9 )Ìý Ìý Ìý (9.1 )Ìý

Amortization:

ÌýÌý Ìý Ìý Ìý Ìý Ìý

Net asset

ÌýÌý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý (3.0 )Ìý Ìý Ìý (3.0 )Ìý Ìý Ìý (3.0 )Ìý

Prior service costs (credits)

ÌýÌý Ìý 4.4 ÌýÌý Ìý Ìý 4.4 ÌýÌý Ìý Ìý 4.2 ÌýÌý Ìý Ìý 3.7 ÌýÌý Ìý Ìý 1.7 ÌýÌý Ìý Ìý 1.8 ÌýÌý

Net actuarial loss

ÌýÌý Ìý 19.6 ÌýÌý Ìý Ìý 23.1 ÌýÌý Ìý Ìý 26.8 ÌýÌý Ìý Ìý 8.8 ÌýÌý Ìý Ìý 8.9 ÌýÌý Ìý Ìý 11.5 ÌýÌý
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Net periodic benefit cost

ÌýÌý $ 37.8 ÌýÌý Ìý $ 45.6 ÌýÌý Ìý $ 50.8 ÌýÌý Ìý $ 26.8 ÌýÌý Ìý $ 24.2 ÌýÌý Ìý $ 25.5 ÌýÌý

Acquired through business combinations

ÌýÌý Ìý —ÌýÌý ÌýÌý Ìý Ìý 17.7 ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý 2.4 ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý

Current year actuarial (gain)/loss

ÌýÌý Ìý 165.3 ÌýÌý Ìý Ìý (3.1 )Ìý Ìý Ìý 12.1 ÌýÌý Ìý Ìý 46.8 ÌýÌý Ìý Ìý 34.6 ÌýÌý Ìý Ìý 2.2 ÌýÌý

Amortization of net loss

ÌýÌý Ìý (19.6 )Ìý Ìý Ìý (23.1 )Ìý Ìý Ìý (26.8 )Ìý Ìý Ìý (8.8 )Ìý Ìý Ìý (8.9 )Ìý Ìý Ìý (11.5 )Ìý

Current year prior service cost

ÌýÌý Ìý —ÌýÌý ÌýÌý Ìý Ìý 3.7 ÌýÌý Ìý Ìý 3.0 ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý

Amortization of prior service (cost) credit

ÌýÌý Ìý (4.4 )Ìý Ìý Ìý (4.4 )Ìý Ìý Ìý (4.2 )Ìý Ìý Ìý (3.7 )Ìý Ìý Ìý (1.7 )Ìý Ìý Ìý (1.8 )Ìý

Amortization of transition asset

ÌýÌý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý 3.0 ÌýÌý Ìý Ìý 3.0 ÌýÌý Ìý Ìý 3.0 ÌýÌý
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Total recognized in other comprehensive income

ÌýÌý $ 141.3 ÌýÌý Ìý $ (9.2 )Ìý Ìý $ (15.9 )Ìý Ìý $ 37.3 ÌýÌý Ìý $ 29.4 ÌýÌý Ìý $ (8.1 )Ìý
ÌýÌý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý

Total recognized in net periodic cost and other comprehensive income

ÌýÌý $ 179.1 ÌýÌý Ìý $ 36.4 ÌýÌý Ìý $ 34.9 ÌýÌý Ìý $ 64.1 ÌýÌý Ìý $ 53.6 ÌýÌý Ìý $ 17.4 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý

Additional Information

Ìý

Ìý Ìý (In Millions) Ìý
Ìý Ìý Pension Benefits Ìý Ìý Other Benefits Ìý
Ìý Ìý 2011 Ìý Ìý 2010 Ìý Ìý 2009 Ìý Ìý 2011 Ìý Ìý 2010 Ìý Ìý 2009 Ìý

Effect of change in mine ownership & noncontrolling interest

Ìý $ 53.3 ÌýÌý Ìý $ 49.9 ÌýÌý Ìý $ 50.9 ÌýÌý Ìý $ 12.5 ÌýÌý Ìý $ 10.7 ÌýÌý Ìý $ 10.1 ÌýÌý

Actual return on plan assets

Ìý Ìý 10.8 ÌýÌý Ìý Ìý 87.1 ÌýÌý Ìý Ìý 63.0 ÌýÌý Ìý Ìý 1.9 ÌýÌý Ìý Ìý 20.1 ÌýÌý Ìý Ìý 27.8 ÌýÌý

Ìý

Assumptions

For our U.S. plans, we used a discount rate as of December 31, 2011 ofÌý4.28 percent, compared with a discount rate ofÌý5.11 percent as of December 31, 2010. The U.S. discount rates are determined by matching the projected cash flows used to determine the PBO and APBO to a projected yield curve of over 425 Aa graded bonds in the 10th to 90th percentiles. These bonds are either noncallable or callable with make-whole provisions. The duration matching produced rates ranging fromÌý4.12 percent toÌý4.43 percent for our plans. Based upon these results, we selected a December 31, 2011 discount rate of 4.28 percent for our plans.

For our Canadian plans, we used a discount rate as of December 31, 2011 ofÌý4.00 percent for the pension plans and 4.25 percent for the other postretirement benefit plans. Similar to the U.S. plans, the Canadian discount rates are determined by matching the projected cash flows used to determine the PBO and APBO to a projected yield curve of over 225 corporate bonds in the 10th to 90th percentiles. The corporate bonds are either Aa graded, or (for maturities of 10 or more years) A or Aaa graded with an appropriate credit spread adjustment. These bonds are either noncallable or callable with make whole provisions.

Weighted-average assumptions used to determine benefit obligations at December 31 were:

Ìý

Ìý ÌýÌý PensionÌýBenefits Ìý Ìý OtherÌýBenefits Ìý
Ìý ÌýÌý ÌýÌý2011ÌýÌý Ìý Ìý ÌýÌý2010ÌýÌý Ìý Ìý ÌýÌý2011ÌýÌý Ìý Ìý ÌýÌý2010ÌýÌý Ìý

U.S. plan discount rate

ÌýÌý Ìý 4.28 %Ìý Ìý Ìý 5.11 %Ìý Ìý Ìý 4.28 %Ìý Ìý Ìý 5.11 %Ìý

Canadian plan discount rate

ÌýÌý Ìý 4.00 ÌýÌý Ìý Ìý 5.00 ÌýÌý Ìý Ìý 4.25 ÌýÌý Ìý Ìý 5.00 ÌýÌý

Rate of compensation increase

ÌýÌý Ìý 4.00 ÌýÌý Ìý Ìý 4.00 ÌýÌý Ìý Ìý 4.00 ÌýÌý Ìý Ìý 4.00 ÌýÌý

U.S. expected return on plan assets

ÌýÌý Ìý 8.25 ÌýÌý Ìý Ìý 8.50 ÌýÌý Ìý Ìý 8.25 ÌýÌý Ìý Ìý 8.50 ÌýÌý

Canadian expected return on plan assets

ÌýÌý Ìý 7.25 ÌýÌý Ìý Ìý 7.50 ÌýÌý Ìý Ìý 7.25 ÌýÌý Ìý Ìý 7.50 ÌýÌý

Weighted-average assumptions used to determine net benefit cost for the years 2011, 2010 and 2009 were:

Ìý

Ìý ÌýÌý Pension Benefits Ìý Ìý Other Benefits Ìý
Ìý ÌýÌý 2011 Ìý Ìý 2010 Ìý Ìý 2009 Ìý Ìý 2011 Ìý Ìý 2010 Ìý Ìý 2009 Ìý

U.S. plan discount rate

ÌýÌý Ìý 5.11 %Ìý Ìý Ìý 5.66 %Ìý Ìý Ìý 6.00 %Ìý Ìý Ìý 5.11 %Ìý Ìý Ìý 5.66 %Ìý Ìý Ìý 6.00 %Ìý

Canadian plan discount rate

ÌýÌý Ìý 5.00 ÌýÌý Ìý Ìý 5.75/5.50 (2)Ìý Ìý Ìý (1 )Ìý Ìý Ìý 5.00 ÌýÌý Ìý Ìý 6.00/5.75 (3)Ìý Ìý Ìý (1 )Ìý

U.S. expected return on plan assets

ÌýÌý Ìý 8.50 ÌýÌý Ìý Ìý 8.50 ÌýÌý Ìý Ìý 8.50 ÌýÌý Ìý Ìý 8.50 ÌýÌý Ìý Ìý 8.50 ÌýÌý Ìý Ìý 8.50 ÌýÌý

Canadian expected return on plan assets

ÌýÌý Ìý 7.50 ÌýÌý Ìý Ìý 7.50 ÌýÌý Ìý Ìý (1 )Ìý Ìý Ìý 7.50 ÌýÌý Ìý Ìý 7.50 ÌýÌý Ìý Ìý (1 )Ìý

Rate of compensation increase

ÌýÌý Ìý 4.00 ÌýÌý Ìý Ìý 4.00 ÌýÌý Ìý Ìý 4.00 ÌýÌý Ìý Ìý 4.00 ÌýÌý Ìý Ìý 4.00 ÌýÌý Ìý Ìý 4.00 ÌýÌý

(1) The Canadian plans were not consolidated into our pension and OPEB obligations prior to the acquisition of the remainingÌý73.2 percent interest in Wabush in February 2010.

Ìý

(2) 5.75% from JanuaryÌý1, 2010 through JanuaryÌý31, 2010, and 5.50% from FebruaryÌý1, 2010 through DecemberÌý31, 2010.

Ìý

(3) 6.00% from JanuaryÌý1, 2010 through JanuaryÌý31, 2010, and 5.75% from FebruaryÌý1, 2010 through DecemberÌý31, 2010.

Assumed health care cost trend rates at December 31 were:

Ìý

Ìý ÌýÌý 2011 Ìý Ìý 2010 Ìý

U.S. plan health care cost trend rate assumed for next year

ÌýÌý Ìý 7.50 %Ìý Ìý Ìý 8.00 %Ìý

Canadian plan health care cost trend rate assumed for next year

ÌýÌý Ìý 8.00 ÌýÌý Ìý Ìý 8.50 ÌýÌý

Ultimate health care cost trend rate

ÌýÌý Ìý 5.00 ÌýÌý Ìý Ìý 5.00 ÌýÌý

U.S. plan year that the ultimate rate is reached

ÌýÌý Ìý 2017 ÌýÌý Ìý Ìý 2017 ÌýÌý

Canadian plan year that the ultimate rate is reached

ÌýÌý Ìý 2018 ÌýÌý Ìý Ìý 2018 ÌýÌý

Ìý

Assumed health care cost trend rates have a significant effect on the amounts reported for the health care plans. A change of one percentage point in assumed health care cost trend rates would have the following effects:

Ìý

Ìý ÌýÌý (In Millions) Ìý
Ìý ÌýÌý Increase Ìý ÌýÌý Decrease Ìý

Effect on total of service and interest cost

ÌýÌý $ 5.7 ÌýÌý ÌýÌý $ (4.4 )Ìý

Effect on postretirement benefit obligation

ÌýÌý Ìý 60.0 ÌýÌý ÌýÌý Ìý (48.3 )Ìý

Plan Assets

Our financial objectives with respect to our pension and VEBA plan assets are to fully fund the actuarial accrued liability for each of the plans, to maximize investment returns within reasonable and prudent levels of risk, and to maintain sufficient liquidity to meet benefit obligations on a timely basis.

Our investment objective is to outperform the expected Return on Asset ("ROA") assumption used in the plans' actuarial reports over a full market cycle, which is considered a period during which the U.S. economy experiences the effects of both an upturn and a downturn in the level of economic activity. In general, these periods tend to last between three and five years. The expected ROA takes into account historical returns and estimated future long-term returns based on capital market assumptions applied to the asset allocation strategy.

The asset allocation strategy is determined through a detailed analysis of assets and liabilities by plan, which defines the overall risk that is acceptable with regard to the expected level and variability of portfolio returns, surplus (assets compared to liabilities), contributions and pension expense.

The asset allocation review process involves simulating the effect of financial market performance for various asset allocation scenarios and factoring in the current funded status and likely future funded status levels by taking into account expected growth or decline in the contributions over time. The modeling is then adjusted by simulating unexpected changes in inflation and interest rates. The process also includes quantifying the effect of investment performance and simulated changes to future levels of contributions, determining the appropriate asset mix with the highest likelihood of meeting financial objectives and regularly reviewing our asset allocation strategy.

The asset allocation strategy varies by plan. The following table reflects the actual asset allocations for pension and VEBA plan assets as of December 31, 2011 and 2010, as well as the 2012 weighted average target asset allocations as of December 31, 2011. Equity investments include securities in large-cap, mid-cap and small-cap companies located in the U.S. and worldwide. Fixed income investments primarily include corporate bonds and government debt securities. Alternative investments include hedge funds, private equity, structured credit and real estate.

Ìý

Ìý ÌýÌý Pension Assets Ìý Ìý VEBA Assets Ìý

Asset Category

ÌýÌý 2012
Target
Allocation
Ìý Ìý Percentage of
Plan Assets at
DecemberÌý31,
Ìý Ìý 2012
Target

Allocation
Ìý Ìý Percentage of
Plan Assets at
DecemberÌý31,
Ìý
ÌýÌý Ìý 2011 Ìý Ìý 2010 Ìý Ìý Ìý 2011 Ìý Ìý 2010 Ìý

Equity securities

ÌýÌý Ìý 43.1 %Ìý Ìý Ìý 41.7 %Ìý Ìý Ìý 42.0 %Ìý Ìý Ìý 41.8 %Ìý Ìý Ìý 42.0 %Ìý Ìý Ìý 44.4 %Ìý

Fixed income

ÌýÌý Ìý 30.2 ÌýÌý Ìý Ìý 31.1 ÌýÌý Ìý Ìý 30.6 ÌýÌý Ìý Ìý 32.1 ÌýÌý Ìý Ìý 33.5 ÌýÌý Ìý Ìý 37.4 ÌýÌý

Hedge funds

ÌýÌý Ìý 13.8 ÌýÌý Ìý Ìý 13.5 ÌýÌý Ìý Ìý 14.4 ÌýÌý Ìý Ìý 14.9 ÌýÌý Ìý Ìý 14.6 ÌýÌý Ìý Ìý 13.8 ÌýÌý

Private equity

ÌýÌý Ìý 5.3 ÌýÌý Ìý Ìý 5.2 ÌýÌý Ìý Ìý 5.0 ÌýÌý Ìý Ìý 6.2 ÌýÌý Ìý Ìý 4.5 ÌýÌý Ìý Ìý 4.3 ÌýÌý

Structured credit

ÌýÌý Ìý 3.8 ÌýÌý Ìý Ìý 6.0 ÌýÌý Ìý Ìý 5.4 ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý

Real estate

ÌýÌý Ìý 3.8 ÌýÌý Ìý Ìý 2.2 ÌýÌý Ìý Ìý 2.1 ÌýÌý Ìý Ìý 5.0 ÌýÌý Ìý Ìý 5.3 ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý

Cash

ÌýÌý Ìý —ÌýÌý ÌýÌý Ìý Ìý 0.3 ÌýÌý Ìý Ìý 0.5 ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý Ìý Ìý 0.1 ÌýÌý Ìý Ìý 0.1 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý

Total

ÌýÌý Ìý 100.0 %Ìý Ìý Ìý 100.0 %Ìý Ìý Ìý 100.0 %Ìý Ìý Ìý 100.0 %Ìý Ìý Ìý 100.0 %Ìý Ìý Ìý 100.0 %Ìý
ÌýÌý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý

Ìý

Pension

The fair values of our pension plan assets at December 31, 2011 and 2010 by asset category are as follows:

Ìý

Ìý ÌýÌý (In Millions) Ìý
Ìý ÌýÌý DecemberÌý31, 2011 Ìý

Asset Category

ÌýÌý QuotedÌýPricesÌýinÌýActive
Markets for Identical
Assets/Liabilities
(Level 1)
Ìý ÌýÌý SignificantÌýOther
Observable
Inputs

(Level 2)
Ìý ÌýÌý Significant
Unobservable
Inputs

(Level 3)
Ìý ÌýÌý Total Ìý

Equity securities:

ÌýÌý ÌýÌý ÌýÌý ÌýÌý

U.S. large-cap

ÌýÌý $ 191.1 ÌýÌý ÌýÌý $ ÌýÌýÌý—ÌýÌý ÌýÌý ÌýÌý $ ÌýÌýÌý—ÌýÌý ÌýÌý ÌýÌý $ 191.1 ÌýÌý

U.S. small/mid-cap

ÌýÌý Ìý 29.2 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 29.2 ÌýÌý

International

ÌýÌý Ìý 90.0 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 90.0 ÌýÌý

Fixed income

ÌýÌý Ìý 231.1 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 231.1 ÌýÌý

Hedge funds

ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 100.7 ÌýÌý ÌýÌý Ìý 100.7 ÌýÌý

Private equity

ÌýÌý Ìý 8.6 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 30.1 ÌýÌý ÌýÌý Ìý 38.7 ÌýÌý

Structured credit

ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 44.9 ÌýÌý ÌýÌý Ìý 44.9 ÌýÌý

Real estate

ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 16.5 ÌýÌý ÌýÌý Ìý 16.5 ÌýÌý

Cash

ÌýÌý Ìý 1.9 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 1.9 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý

Total

ÌýÌý $ 551.9 ÌýÌý ÌýÌý $ —ÌýÌý ÌýÌý ÌýÌý $ 192.2 ÌýÌý ÌýÌý $ 744.1 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý
Ìý ÌýÌý (In Millions) Ìý
Ìý ÌýÌý December 31, 2010 Ìý

Asset Category

ÌýÌý QuotedÌýPricesÌýinÌýActive
Markets for Identical
Assets/Liabilities
(Level 1)
Ìý ÌýÌý SignificantÌý Other
Observable
Inputs

(Level 2)
Ìý ÌýÌý Significant
Unobservable
Inputs

(Level 3)
Ìý ÌýÌý Total Ìý

Equity securities:

ÌýÌý ÌýÌý ÌýÌý ÌýÌý

U.S. large-cap

ÌýÌý $ 122.4 ÌýÌý ÌýÌý $ ÌýÌýÌý—ÌýÌý ÌýÌý ÌýÌý $ ÌýÌýÌý—ÌýÌý ÌýÌý ÌýÌý $ 122.4 ÌýÌý

U.S. small/mid-cap

ÌýÌý Ìý 21.7 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 21.7 ÌýÌý

International

ÌýÌý Ìý 164.5 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 164.5 ÌýÌý

Fixed income

ÌýÌý Ìý 224.7 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 224.7 ÌýÌý

Hedge funds

ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 105.8 ÌýÌý ÌýÌý Ìý 105.8 ÌýÌý

Private equity

ÌýÌý Ìý 11.8 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 25.0 ÌýÌý ÌýÌý Ìý 36.8 ÌýÌý

Structured credit

ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 39.7 ÌýÌý ÌýÌý Ìý 39.7 ÌýÌý

Real estate

ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 15.5 ÌýÌý ÌýÌý Ìý 15.5 ÌýÌý

Cash

ÌýÌý Ìý 3.2 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 3.2 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý

Total

ÌýÌý $ 548.3 ÌýÌý ÌýÌý $ —ÌýÌý ÌýÌý ÌýÌý $ 186.0 ÌýÌý ÌýÌý $ 734.3 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý

Following is a description of the inputs and valuation methodologies used to measure the fair value of our plan assets.

Equity Securities

Equity securities classified as Level 1 investments include U.S. large, small and mid-cap investments and international equity. These investments are comprised of securities listed on an exchange, market or automated quotation system for which quotations are readily available. The valuation of these securities is determined using a market approach, and is based upon unadjusted quoted prices for identical assets in active markets.

Fixed Income

Fixed income securities classified as Level 1 investments include bonds and government debt securities. These investments are comprised of securities listed on an exchange, market or automated quotation system for which quotations are readily available. The valuation of these securities is determined using a market approach, and is based upon unadjusted quoted prices for identical assets in active markets.

Hedge Funds

Hedge funds are alternative investments comprised of direct or indirect investment in offshore hedge funds of funds with an investment objective to achieve an attractive risk-adjusted return with moderate volatility and moderate directional market exposure over a full market cycle. The valuation techniques used to measure fair value attempt to maximize the use of observable inputs and minimize the use of unobservable inputs. Considerable judgment is required to interpret the factors used to develop estimates of fair value. Valuations of the underlying investment funds are obtained and reviewed. The securities that are valued by the funds are interests in the investment funds and not the underlying holdings of such investment funds. Thus, the inputs used to value the investments in each of the underlying funds may differ from the inputs used to value the underlying holdings of such funds.

In determining the fair value of a security, the fund managers may consider any information that is deemed relevant, which may include one or more of the following factors regarding the portfolio security, if appropriate: type of security or asset; cost at the date of purchase; size of holding; last trade price; most recent valuation; fundamental analytical data relating to the investment in the security; nature and duration of any restriction on the disposition of the security; evaluation of the factors that influence the market in which the security is purchased or sold; financial statements of the issuer; discount from market value of unrestricted securities of the same class at the time of purchase; special reports prepared by analysts; information as to any transactions or offers with respect to the security; existence of merger proposals or tender offers affecting the security; price and extent of public trading in similar securities of the issuer or compatible companies and other relevant matters; changes in interest rates; observations from financial institutions; domestic or foreign government actions or pronouncements; other recent events; existence of shelf registration for restricted securities; existence of any undertaking to register the security; and other acceptable methods of valuing portfolio securities.

Hedge fund investments in the SEI Opportunity Collective Fund are valued monthly and recorded on a one-month lag; investments in the SEI Special Situations Fund are valued quarterly. For alternative investment values reported on a lag, current market information is reviewed for any material changes in values at the reporting date. Share repurchases for the SEI Opportunity Collective Fund are available quarterly with notice ofÌý65 business days. For the SEI Special Situations Fund, redemption requests are considered semi-annually subject to notice ofÌý95 days; however, share repurchases are not permitted for a two-year lock-up period following investment, which will expire in April 2012 for the plans' initial investments.

Private Equity Funds

Private equity funds are alternative investments that represent direct or indirect investments in partnerships, venture funds or a diversified pool of private investment vehicles (fund of funds).

Investment commitments are made in private equity funds of funds based on an asset allocation strategy, and capital calls are made over the life of the funds to fund the commitments. Until commitments are funded, the committed amount is reserved and invested in a selection of public equity mutual funds, including U.S. large-, small- and mid-cap investments and international equity, designed to approximate overall equity market returns. As of December 31, 2011, remaining commitments total $13.0 million, of which $10.5 million is reserved for both our pension and other benefits. Refer to the valuation methodologies for equity securities above for further information.

The valuation of investments in private equity funds of funds initially is performed by the underlying fund managers. In determining the fair value, the fund managers may consider any information that is deemed relevant, which may include: type of security or asset; cost at the date of purchase; size of holding; last trade price; most recent valuation; fundamental analytical data relating to the investment in the security; nature and duration of any restriction on the disposition of the security; evaluation of the factors that influence the market in which the security is purchased or sold; financial statements of the issuer; discount from market value of unrestricted securities of the same class at the time of purchase; special reports prepared by analysts; information as to any transactions or offers with respect to the security; existence of merger proposals or tender offers affecting the security; price and extent of public trading in similar securities of the issuer or compatible companies and other relevant matters; changes in interest rates; observations from financial institutions; domestic or foreign government actions or pronouncements; other recent events; existence of shelf registration for restricted securities; existence of any undertaking to register the security; and other acceptable methods of valuing portfolio securities.

The valuations are obtained from the underlying fund managers, and the valuation methodology and process is reviewed for consistent application and adherence to policies. Considerable judgment is required to interpret the factors used to develop estimates of fair value.

Private equity investments are valued quarterly and recorded on a one-quarter lag. For alternative investment values reported on a lag, current market information is reviewed for any material changes in values at the reporting date. Capital distributions for the funds do not occur on a regular frequency. Liquidation of these investments would require sale of the partnership interest.

Structured Credit

Structured credit investments are alternative investments comprised of collateralized debt obligations and other structured credit investments that are priced based on valuations provided by independent, third-party pricing agents, if available. Such values generally reflect the last reported sales price if the security is actively traded. The third-party pricing agents may also value structured credit investments at an evaluated bid price by employing methodologies that utilize actual market transactions, broker-supplied valuations, or other methodologies designed to identify the market value of such securities. Such methodologies generally consider such factors as security prices, yields, maturities, call features, ratings and developments relating to specific securities in arriving at valuations. Securities listed on a securities exchange, market or automated quotation system for which quotations are readily available are valued at the last quoted sale price on the primary exchange or market on which they are traded. Debt obligations with remaining maturities of 60 days or less may be valued at amortized cost, which approximates fair value.

Structured credit investments are valued monthly and recorded on a one-month lag. For alternative investment values reported on a lag, current market information is reviewed for any material changes in values at the reporting date. Redemption requests are considered quarterly subject to notice ofÌý90 days.

Real Estate

The real estate portfolio for the pension plans is an alternative investment comprised of three funds with strategic categories of real estate investments. All real estate holdings are appraised externally at least annually, and appraisals are conducted by reputable, independent appraisal firms that are members of the Appraisal Institute. All external appraisals are performed in accordance with the Uniform Standards of Professional Appraisal Practices. The property valuations and assumptions of each property are reviewed quarterly by the investment advisor and values are adjusted if there has been a significant change in circumstances relating to the property since the last external appraisal. The valuation methodology utilized in determining the fair value is consistent with the best practices prevailing within the real estate appraisal and real estate investment management industries, including the Real Estate Information Standards, and standards promulgated by the National Council of Real Estate Investment Fiduciaries, the National Association of Real Estate Investment Fiduciaries, and the National Association of Real Estate Managers. In addition, the investment advisor may cause additional appraisals to be performed. Two of the funds' fair values are updated monthly, and there is no lag in reported values. Redemption requests for these two funds are considered on a quarterly basis, subject to notice ofÌý45 days.

Effective October 1, 2009, one of the real estate funds began an orderly wind-down over a three to four year period. The decision to wind down the fund primarily was driven by real estate market factors that adversely affected the availability of new investor capital. Third-party appraisals of this fund's assets were eliminated; however, internal valuation updates for all assets and liabilities of the fund are prepared quarterly. The fund's asset values are recorded on a one-quarter lag, and current market information is reviewed for any material changes in values at the reporting date. Distributions from sales of properties will be made on pro-rata basis. Repurchase requests will not be honored during the wind-down period.

Ìý

During 2011, a new real estate fund of funds investment was added for the Empire, Tilden, Hibbing and United Taconite VEBA plans as a result of the asset allocation review process. This fund invests in pooled investment vehicles that in turn invest in commercial real estate properties. Valuations are performed quarterly and financial statements are prepared on a semi-annual basis, with annual audited statements. Asset values for this fund are reported with a one-quarter lag and current market information is reviewed for any material changes in values at the reporting date. In most cases, values are based on valuations reported by underlying fund managers or other independent third-party sources, but the fund has discretion to use other valuation methods, subject to compliance with ERISA. Valuations are typically estimates only and subject to upward or downward revision based on each underlying fund's annual audit. Withdrawals are permitted on the last business day of each quarter subject to a 65-day prior written notice.

The following represents the effect of fair value measurements using significant unobservable inputs (Level 3) on changes in plan assets for the years ended December 31, 2011 and 2010:

Ìý

Ìý ÌýÌý (In Millions) Ìý
Ìý ÌýÌý Year Ended December 31, 2011 Ìý
Ìý ÌýÌý HedgeÌýFunds Ìý Ìý PrivateÌýEquity
Funds
Ìý Ìý Structured
CreditÌýFund
Ìý ÌýÌý Real
Estate
Ìý Ìý Total Ìý

Beginning balance — January 1, 2011

ÌýÌý $ 105.8 ÌýÌý Ìý $ 25.0 ÌýÌý Ìý $ 39.7 ÌýÌý ÌýÌý $ 15.5 ÌýÌý Ìý $ 186.0 ÌýÌý

Actual return on plan assets:

ÌýÌý Ìý Ìý ÌýÌý Ìý

Relating to assets still held at the reporting date

ÌýÌý Ìý (2.4 )Ìý Ìý Ìý 2.6 ÌýÌý Ìý Ìý 5.2 ÌýÌý ÌýÌý Ìý 1.6 ÌýÌý Ìý Ìý 7.0 ÌýÌý

Relating to assets sold during the period

ÌýÌý Ìý 0.5 ÌýÌý Ìý Ìý 3.0 ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 0.5 ÌýÌý Ìý Ìý 4.0 ÌýÌý

Purchases

ÌýÌý Ìý 35.8 ÌýÌý Ìý Ìý 4.4 ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý Ìý Ìý 40.2 ÌýÌý

Sales

ÌýÌý Ìý (39.0 )Ìý Ìý Ìý (4.9 )Ìý Ìý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý (1.1 )Ìý Ìý Ìý (45.0 )Ìý
ÌýÌý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý

Ending balance — December 31, 2011

ÌýÌý $ 100.7 ÌýÌý Ìý $ 30.1 ÌýÌý Ìý $ 44.9 ÌýÌý ÌýÌý $ 16.5 ÌýÌý Ìý $ 192.2 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý
Ìý ÌýÌý (In Millions) Ìý
Ìý ÌýÌý Year Ended December 31, 2010 Ìý
Ìý ÌýÌý HedgeÌýFunds Ìý ÌýÌý PrivateÌýEquity
Funds
Ìý ÌýÌý Structured
CreditÌýFund
Ìý ÌýÌý Real
Estate
Ìý Ìý Total Ìý

Beginning balance — January 1, 2010

ÌýÌý $ 71.4 ÌýÌý ÌýÌý $ 18.2 ÌýÌý ÌýÌý $ 39.1 ÌýÌý ÌýÌý $ 14.4 ÌýÌý Ìý $ 143.1 ÌýÌý

Acquired through business combination

ÌýÌý Ìý 17.0 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý Ìý Ìý 17.0 ÌýÌý

Actual return on plan assets:

ÌýÌý ÌýÌý ÌýÌý ÌýÌý Ìý

Relating to assets still held at the reporting date

ÌýÌý Ìý 2.4 ÌýÌý ÌýÌý Ìý 3.4 ÌýÌý ÌýÌý Ìý 0.5 ÌýÌý ÌýÌý Ìý 1.5 ÌýÌý Ìý Ìý 7.8 ÌýÌý

Relating to assets sold during the period

ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 0.1 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý Ìý Ìý 0.1 ÌýÌý

Purchases, sales and settlements

ÌýÌý Ìý 15.0 ÌýÌý ÌýÌý Ìý 3.3 ÌýÌý ÌýÌý Ìý 0.1 ÌýÌý ÌýÌý Ìý (0.4 )Ìý Ìý Ìý 18.0 ÌýÌý

Transfers in (out) of Level 3

ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý Ìý Ìý —ÌýÌý ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý

Ending balance — December 31, 2010

ÌýÌý $ 105.8 ÌýÌý ÌýÌý $ 25.0 ÌýÌý ÌýÌý $ 39.7 ÌýÌý ÌýÌý $ 15.5 ÌýÌý Ìý $ 186.0 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý

The expected return on plan assets takes into account historical returns and the weighted average of estimated future long-term returns based on capital market assumptions for each asset category. The expected return is net of investment expenses paid by the plans.

Ìý

VEBA

Assets for other benefits include VEBA trusts pursuant to bargaining agreements that are available to fund retired employees' life insurance obligations and medical benefits. The fair values of our other benefit plan assets at December 31, 2011 and 2010 by asset category are as follows:

Ìý

Ìý ÌýÌý (In Millions) Ìý
Ìý ÌýÌý December 31, 2011 Ìý

Asset Category

ÌýÌý QuotedÌýPricesÌýinÌýActive
Markets for Identical
Assets/Liabilities
(Level 1)
Ìý ÌýÌý SignificantÌýOther
Observable
Inputs

(Level 2)
Ìý ÌýÌý Significant
Unobservable
Inputs

(Level 3)
Ìý ÌýÌý Total Ìý

Equity securities:

ÌýÌý ÌýÌý ÌýÌý ÌýÌý

U.S. large-cap

ÌýÌý $ 46.5 ÌýÌý ÌýÌý $ Ìý—ÌýÌý ÌýÌý ÌýÌý $ —ÌýÌý ÌýÌý ÌýÌý $ 46.5 ÌýÌý

U.S. small/mid-cap

ÌýÌý Ìý 7.9 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 7.9 ÌýÌý

International

ÌýÌý Ìý 26.8 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 26.8 ÌýÌý

Fixed income

ÌýÌý Ìý 64.9 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 64.9 ÌýÌý

Hedge funds

ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 28.3 ÌýÌý ÌýÌý Ìý 28.3 ÌýÌý

Private equity

ÌýÌý Ìý 1.9 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 6.8 ÌýÌý ÌýÌý Ìý 8.7 ÌýÌý

Real estate

ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 10.2 ÌýÌý ÌýÌý Ìý 10.2 ÌýÌý

Cash

ÌýÌý Ìý 0.2 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 0.2 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý

Total

ÌýÌý $ 148.2 ÌýÌý ÌýÌý $ —ÌýÌý ÌýÌý ÌýÌý $ 45.3 ÌýÌý ÌýÌý $ 193.5 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý
Ìý ÌýÌý (In Millions) Ìý
Ìý ÌýÌý December 31, 2010 Ìý

Asset Category

ÌýÌý QuotedÌýPricesÌýinÌýActive
Markets for Identical
Assets/Liabilities
(Level 1)
Ìý ÌýÌý SignificantÌý Other
Observable
Inputs

(Level 2)
Ìý ÌýÌý Significant
Unobservable
Inputs

(Level 3)
Ìý ÌýÌý Total Ìý

Equity securities:

ÌýÌý ÌýÌý ÌýÌý ÌýÌý

U.S. large-cap

ÌýÌý $ 38.5 ÌýÌý ÌýÌý $ Ìý—ÌýÌý ÌýÌý ÌýÌý $ —ÌýÌý ÌýÌý ÌýÌý $ 38.5 ÌýÌý

U.S. small/mid-cap

ÌýÌý Ìý 11.7 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 11.7 ÌýÌý

International

ÌýÌý Ìý 27.2 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 27.2 ÌýÌý

Fixed income

ÌýÌý Ìý 65.2 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 65.2 ÌýÌý

Hedge funds

ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 24.0 ÌýÌý ÌýÌý Ìý 24.0 ÌýÌý

Private equity

ÌýÌý Ìý 2.5 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 4.9 ÌýÌý ÌýÌý Ìý 7.4 ÌýÌý

Cash

ÌýÌý Ìý 0.2 ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý 0.2 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý

Total

ÌýÌý $ 145.3 ÌýÌý ÌýÌý $ —ÌýÌý ÌýÌý ÌýÌý $ 28.9 ÌýÌý ÌýÌý $ 174.2 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý

Refer to the pension asset discussion above for further information regarding the inputs and valuation methodologies used to measure the fair value of each respective category of plan assets.

The following represents the effect of fair value measurements using significant unobservable inputs (Level 3) on changes in plan assets for the year ended December 31, 2011 and 2010:

Ìý

Ìý ÌýÌý (In Millions) Ìý
Ìý ÌýÌý Year Ended December 31, 2011 Ìý
ÌýÌý ÌýÌý HedgeÌýFunds Ìý Ìý PrivateÌýEquity
Funds
Ìý Ìý Real
Estate
Ìý ÌýÌý Total Ìý

Beginning balance — January 1

ÌýÌý $ 24.0 ÌýÌý Ìý $ 4.9 ÌýÌý Ìý $ —ÌýÌý ÌýÌý ÌýÌý $ 28.9 ÌýÌý

Actual return on plan assets:

ÌýÌý Ìý Ìý ÌýÌý

Relating to assets still held at the reporting date

ÌýÌý Ìý (0.4 )Ìý Ìý Ìý 1.4 ÌýÌý Ìý Ìý 0.4 ÌýÌý ÌýÌý Ìý 1.4 ÌýÌý

Purchases

ÌýÌý Ìý 7.7 ÌýÌý Ìý Ìý 0.9 ÌýÌý Ìý Ìý 9.8 ÌýÌý ÌýÌý Ìý 18.4 ÌýÌý

Sales

ÌýÌý Ìý (3.0 )Ìý Ìý Ìý (0.4 )Ìý Ìý Ìý —ÌýÌý ÌýÌý ÌýÌý Ìý (3.4 )Ìý
ÌýÌý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý

Ending balance — December 31

ÌýÌý $ 28.3 ÌýÌý Ìý $ 6.8 ÌýÌý Ìý $ 10.2 ÌýÌý ÌýÌý $ 45.3 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý

Ìý

Ìý

ÌýÌý ÌýÌý (In Millions) Ìý
Ìý ÌýÌý Year Ended DecemberÌý31, 2010 Ìý
Ìý ÌýÌý HedgeÌýFunds Ìý ÌýÌý PrivateÌýEquity
Funds
Ìý ÌýÌý Total Ìý

Beginning balance — January 1

ÌýÌý $ 14.6 ÌýÌý ÌýÌý $ 3.1 ÌýÌý ÌýÌý $ 17.7 ÌýÌý

Actual return on plan assets:

ÌýÌý ÌýÌý ÌýÌý

Relating to assets still held at the reporting date

ÌýÌý Ìý 0.1 ÌýÌý ÌýÌý Ìý 1.0 ÌýÌý ÌýÌý Ìý 1.1 ÌýÌý

Purchases, sales and settlements

ÌýÌý Ìý 9.3 ÌýÌý ÌýÌý Ìý 0.8 ÌýÌý ÌýÌý Ìý 10.1 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý

Ending balance — December 31

ÌýÌý $ 24.0 ÌýÌý ÌýÌý $ 4.9 ÌýÌý ÌýÌý $ 28.9 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý ÌýÌý

Ìý

Ìý

Ìý

The expected return on plan assets takes into account historical returns and the weighted average of estimated future long-term returns based on capital market assumptions for each asset category. The expected return is net of investment expenses paid by the plans.

Contributions

Annual contributions to the pension plans are made within income tax deductibility restrictions in accordance with statutory regulations. In the event of plan termination, the plan sponsors could be required to fund additional shutdown and early retirement obligations that are not included in the pension obligations. The Company currently has no intention to shutdown, terminate or withdraw from any of its employee benefit plans.

Ìý

ÌýÌý ÌýÌý (In Millions) Ìý
ÌýÌý ÌýÌý Pension
Benefits
Ìý ÌýÌý Other Benefits Ìý

Company Contributions

ÌýÌý ÌýÌý VEBA Ìý ÌýÌý Direct
Payments
Ìý ÌýÌý Total Ìý

2010

ÌýÌý Ìý 45.6 ÌýÌý ÌýÌý Ìý 17.4 ÌýÌý ÌýÌý Ìý 21.1 ÌýÌý ÌýÌý Ìý 38.5 ÌýÌý

2011

ÌýÌý Ìý 70.1 ÌýÌý ÌýÌý Ìý 17.4 ÌýÌý ÌýÌý Ìý 20.0 ÌýÌý ÌýÌý Ìý 37.4 ÌýÌý

2012 (Expected)*

ÌýÌý Ìý 66.3 ÌýÌý ÌýÌý Ìý 17.4 ÌýÌý ÌýÌý Ìý 23.8 ÌýÌý ÌýÌý Ìý 41.2 ÌýÌý

* Pursuant to the bargaining agreement, benefits can be paid from VEBA trusts that are at leastÌý70 percent funded (no VEBA trusts are 70 percent funded at DecemberÌý31, 2011).

VEBA plans are not subject to minimum regulatory funding requirements. Amounts contributed are pursuant to bargaining agreements.

Contributions by participants to the other benefit plans were $4.6 million and $6.2 million for years ended December 31, 2011 and 2010, respectively.

Estimated Cost for 2012

For 2012, we estimate net periodic benefit cost as follows:

Ìý

Ìý ÌýÌý (InÌýMillions) Ìý

Defined benefit pension plans

ÌýÌý $ 54.5 ÌýÌý

Other postretirement benefits

ÌýÌý Ìý 29.4 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý

Total

ÌýÌý $ 83.9 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý

Ìý

Estimated Future Benefit Payments

Ìý

Ìý ÌýÌý (In Millions) Ìý
Ìý ÌýÌý Pension
Benefits
Ìý ÌýÌý Other Benefits Ìý
ÌýÌý ÌýÌý Gross
Company
Benefits
Ìý ÌýÌý Less
Medicare
Subsidy
Ìý ÌýÌý Net
Company
Payments
Ìý

ÌýÌýÌýÌýÌýÌýÌýÌýÌýÌý2012

ÌýÌý $ 73.3 ÌýÌý ÌýÌý $ 24.8 ÌýÌý ÌýÌý $ 1.0 ÌýÌý ÌýÌý $ 23.8 ÌýÌý

ÌýÌýÌýÌýÌýÌýÌýÌýÌýÌý2013

ÌýÌý Ìý 76.9 ÌýÌý ÌýÌý Ìý 25.8 ÌýÌý ÌýÌý Ìý 1.1 ÌýÌý ÌýÌý Ìý 24.7 ÌýÌý

ÌýÌýÌýÌýÌýÌýÌýÌýÌýÌý2014

ÌýÌý Ìý 75.0 ÌýÌý ÌýÌý Ìý 27.3 ÌýÌý ÌýÌý Ìý 1.2 ÌýÌý ÌýÌý Ìý 26.1 ÌýÌý

ÌýÌýÌýÌýÌýÌýÌýÌýÌýÌý2015

ÌýÌý Ìý 76.8 ÌýÌý ÌýÌý Ìý 28.6 ÌýÌý ÌýÌý Ìý 1.3 ÌýÌý ÌýÌý Ìý 27.3 ÌýÌý

ÌýÌýÌýÌýÌýÌýÌýÌýÌýÌý2016

ÌýÌý Ìý 77.1 ÌýÌý ÌýÌý Ìý 29.5 ÌýÌý ÌýÌý Ìý 1.4 ÌýÌý ÌýÌý Ìý 28.1 ÌýÌý

2017-2021

ÌýÌý Ìý 396.4 ÌýÌý ÌýÌý Ìý 152.7 ÌýÌý ÌýÌý Ìý 9.6 ÌýÌý ÌýÌý Ìý 143.1 ÌýÌý

Other Potential Benefit Obligations

While the foregoing reflects our obligation, our total exposure in the event of non-performance is potentially greater. Following is a summary comparison of the total obligation:

Ìý

Ìý ÌýÌý (In Millions) Ìý
Ìý ÌýÌý DecemberÌý31, 2011 Ìý
Ìý ÌýÌý Defined
Benefit
Pensions
Ìý Ìý Other
Benefits
Ìý

Fair value of plan assets

ÌýÌý $ 744.1 ÌýÌý Ìý $ 193.5 ÌýÌý

Benefit obligation

ÌýÌý Ìý 1,141.4 ÌýÌý Ìý Ìý 488.4 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý

Underfunded status of plan

ÌýÌý $ (397.3 )Ìý Ìý $ (294.9 )Ìý
ÌýÌý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý

Additional shutdown and early retirement benefits

ÌýÌý $ 40.0 ÌýÌý Ìý $ 19.3 ÌýÌý
ÌýÌý

Ìý

Ìý

Ìý Ìý

Ìý

Ìý

Ìý