Retirement Benefits	12 Months Ended
Retirement Benefits	Dec. 29, 2012
Compensation and Retirement Disclosure [Abstract]
Retirement Benefits	Retirement Benefits The Corporation has defined contribution profit-sharing plans covering substantially all employees who are not participants in certain defined benefit plans. The Corporation’s annual contribution to the defined contribution plans is based on employee eligible earnings and results of operations and amounted to $20.8 million, $19.6 million, and $19.1 million, in 2012, 2011, and 2010, respectively. A portion of the annual contribution is in the form of common stock of the Corporation. The amount of the stock contribution was $5.4 million, $4.9 million, and $4.9 million in 2012, 2011, and 2010, respectively. The Corporation sponsors defined benefit plans which include a limited number of salaried and hourly members at certain subsidiaries. The Corporation’s funding policy is generally to contribute annually the minimum actuarially computed amount. Net pension costs relating to these plans were $281,000, $196,000 and $228,000, in 2012, 2011 and 2010, respectively. The actuarial present value of obligations, less related plan assets at fair value, is not significant.

The entire disclosure for postemployment benefits, which may include supplemental unemployment benefits, obligations recognized for all types of benefits provided to former or inactive employees, their beneficiaries, and covered dependents after employment but before retirement. Disclosure may also include discussion that an obligation for postemployment benefits is not accrued in accordance with regulation only because the amount cannot be reasonably estimated.

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