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FORM 10-K IMPERIAL OIL LIMITED

FORM 10-K IMPERIAL OIL LIMITED

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Notes to consolidated financial statements (continued)<br />

7. Employee retirement benefits<br />

Retirement benefits, which cover almost all retired employees and their surviving spouses, include pension-income and certain healthcare<br />

and life-insurance benefits. They are met through funded registered retirement plans and through unfunded supplementary benefits<br />

that are paid directly to recipients. Funding of registered retirement plans complies with federal and provincial pension regulations, and<br />

the company makes contributions to the plans based upon an independent actuarial valuation.<br />

Pension-income benefits consist mainly of company-paid defined benefit plans that are based on years of service and final average<br />

earnings. The company shares in the cost of health-care and life-insurance benefits. The company’s benefit obligations are based on the<br />

projected benefit method of valuation that includes employee service to date and present compensation levels as well as a projection of<br />

salaries and service to retirement.<br />

The expense and obligations for both funded and unfunded benefits are determined in accordance with United States generally accepted<br />

accounting principles and actuarial procedures. The process for determining retirement-income expense and related obligations includes<br />

making certain long-term assumptions regarding the discount rate, rate of return on plan assets and rate of compensation increases.<br />

The total obligation for retirement benefits exceeded the fair value of plan assets at December 31, 2004, by $1,712 million (2003 –<br />

$1,357 million), $1,276 million (2003 – $975 million) of which was related to pension benefits and $436 million (2003 – $382 million)<br />

to other post-retirement benefits. The obligation and pension expense can vary significantly with changes in the assumptions used to<br />

estimate the obligation and the expected return on plan assets.<br />

Details of the employee retirement benefits plans are as follows:<br />

Other post-retirement<br />

Pension benefits<br />

benefits<br />

millions of dollars 2004 2003 2002 2004 2003 2002<br />

Components of net benefit cost:<br />

Current service cost 76 71 64 6 5 4<br />

Interest cost 237 219 222 24 22 21<br />

Expected return on plan assets (223) (179) (191) – – –<br />

Amortization of prior service cost 27 25 25 – – –<br />

Recognized actuarial loss/(gain) 68 69 34 4 3 1<br />

Net benefit cost ( a ) 185 205 154 34 30 26<br />

Change in benefit obligation<br />

Benefit obligation at January 1 3 761 3 530 382 354<br />

Current service cost 76 71 6 5<br />

Interest cost 237 219 24 22<br />

Amendments 37 – – –<br />

Actuarial loss/(gain) 405 171 47 19<br />

Benefits paid (256) (230) (23) (18)<br />

Benefit obligation at December 31 4 260 3 761 436 382<br />

Accumulated benefit obligation at December 31 3 743 3 347 – –<br />

Change in plan assets<br />

Fair value of plan assets at January 1 2 786 2 <strong>10</strong>4<br />

Actual return on plan assets 315 377<br />

Company contributions 114 511<br />

Payments directly to participants 25 24<br />

Benefits paid (256) (230)<br />

Fair value of plan assets at December 31 2 984 2 786<br />

Excess/(deficiency) of plan assets<br />

over benefit obligation (1 276) (975) (436) (382)<br />

Unrecognized net actuarial (gain)/loss ( b ) 1 073 829 95 52<br />

Unrecognized prior service cost ( b ) 99 89 – –<br />

Net amount recognized (<strong>10</strong>4) (57) (341) (330)<br />

Amount recognized in the consolidated balance sheet consists of:<br />

Accrued benefit cost (note 8) (759) (561) (341) (330)<br />

Intangible assets 97 89 – –<br />

Accumulated other nonowner changes in equity,<br />

minimum pension liability adjustment 558 415 – –<br />

Net amount recognized (<strong>10</strong>4) (57) (341) (330)<br />

F-13

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