Income Taxes (Details 3)	12 Months Ended
Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Federal statutory income tax rate to effective income tax rate for continuing operations
Federal statutory income tax rate (as a percent)	35.00%	35.00%	35.00%
Increase (decrease) in taxes resulting from:
State income taxes (as a percent)	2.20%	3.10%	(2.70%)
Non-U.S. tax rate differential and foreign tax credits (as a percent)	(5.40%)	(9.40%)	(60.50%)
Unrecognized tax benefits and interest (as a percent)	0.20%	1.20%	17.50%
Cash surrender value of life insurance (as a percent)	(0.50%)	(1.50%)	(5.10%)
Nondeductible healthcare claims (as a percent)			12.70%
Change in status of subsidiaries (as a percent)			12.00%
Research credit (as a percent)		(2.50%)	(5.40%)
Valuation allowance on contingent receipts (as a percent)			(2.00%)
Other, net (as a percent)	(0.60%)	2.20%	(7.90%)
Effective rate (as a percent)	30.90%	28.10%	(6.40%)

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A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to changes in the valuation allowance for deferred tax assets.

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The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit that is attributable to changes in the income tax laws or rates.

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Percentage of difference between the effective income tax rate and domestic federal statutory income tax rate attributable to the deduction received under enacted tax laws for Medicare prescription drug benefits (subsidies).

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the difference between statutory income tax rates in foreign jurisdictions and the domestic federal statutory income tax rate recorded during the period.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to nondeductible life insurance premiums under enacted tax laws.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to all other items not otherwise listed in the existing taxonomy.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the state and local income tax expense or benefit, net of the federal tax benefit (expense) thereon, recorded during the period.

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The sum of the differences between the effective income tax rate and domestic federal statutory income tax rate attributable to changes in all income tax contingencies, whether recorded or adjusted, during the period.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by research tax credits generated or utilized under enacted tax laws during the period.

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