Components of the net periodic benefit cost credit.

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Interest on cash balance accounts of defined benefit pensions plans.

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- Definition

The amount of gains or losses recognized in net periodic benefit cost.

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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.

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The amount of the transition obligation or asset recognized in net periodic benefit cost.

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

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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 in the current remaining fiscal period. 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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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.

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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.

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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.

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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.

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Benefit Obligations (Details) (USD $)	6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
Benefit Obligations (Details) (USD $)	Jul. 03, 2011	Apr. 06, 2009	Jul. 03, 2011 Pension Benefits [Member]	Jul. 04, 2010 Pension Benefits [Member]	Jul. 03, 2011 Pension Benefits [Member]	Jul. 04, 2010 Pension Benefits [Member]	Jul. 03, 2011 Post-retirement Benefits [Member]	Jul. 04, 2010 Post-retirement Benefits [Member]	Jul. 03, 2011 Post-retirement Benefits [Member]	Jul. 04, 2010 Post-retirement Benefits [Member]
Components of the net periodic benefit cost/(credit)
Service cost			$ 141,000	$ 112,000	$ 275,000	$ 230,000	$ 21,000	$ 21,000	$ 38,000	$ 41,000
Interest cost			16,929,000	17,553,000	33,779,000	35,170,000	621,000	612,000	1,246,000	1,220,000
Expected return on plan assets			(17,000,000)	(17,909,000)	(33,998,000)	(35,732,000)	(1,033,000)	(1,150,000)	(2,065,000)	(2,298,000)
Amortization of transition assets			(5,000)		(10,000)
Amortization of prior-service cost			10,000	10,000	20,000	20,000
Amortization of net actuarial loss			1,694,000	527,000	3,375,000	1,074,000	85,000		177,000
Total benefit cost/(credit)			1,769,000	293,000	3,441,000	762,000	(306,000)	(517,000)	(604,000)	(1,037,000)
Benefit Obligations (Textuals) [Abstract]
Interest on cash-balance accounts for participants in the cash-balance program		4.00%
Company's contribution to pension plans	20,700,000
Expected pension plan contributions for remainder of 2011	$ 44,600,000