Pension Plans (Details) (USD $) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Oct. 01, 2011 |
Oct. 02, 2010 |
Oct. 01, 2011 |
Oct. 02, 2010 |
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| Pension Plans [Abstract] | ||||
| Service cost - benefits earned during the year | $ 5,322,000 | $ 4,076,000 | $ 15,776,000 | $ 12,236,000 |
| Interest cost on projected benefit obligations | 19,730,000 | 19,116,000 | 59,173,000 | 57,340,000 |
| Expected return on plan assets | (22,432,000) | (19,183,000) | (67,290,000) | (57,538,000) |
| Amortization of net deferred actuarial losses | 10,783,000 | 11,381,000 | 32,326,000 | 34,132,000 |
| Amortization of prior service cost | 863,000 | 987,000 | 2,590,000 | 2,961,000 |
| Net periodic pension cost | 14,266,000 | 16,377,000 | 42,575,000 | 49,131,000 |
| Employer contributions | 10,200,000 | |||
| Estimated future employer contributions | $ 2,100,000 | $ 2,100,000 | ||
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- Definition The amount of gains or losses recognized in net periodic benefit cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The increase in the fair value of plan assets from contributions made by the employer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition PensionPlansAbstract
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