Income Taxes (Effective Income Tax Rate Reconciliation) (Details)	12 Months Ended
Dec. 25, 2020	Dec. 27, 2019	Dec. 28, 2018
Federal income tax rate reconciliation
Statutory tax rate	21.00%	21.00%	21.00%
Tax effect of international operations	(2.00%)	1.00%	0.00%
State taxes, net of federal effect	1.00%	1.00%	1.00%
U.S. general business tax credits	(1.00%)	(1.00%)	(1.00%)
Loss on sale of business	2.00%	0.00%	0.00%
Stock compensation excess tax benefit	(6.00%)	(3.00%)	(2.00%)
Global Intangible Low-taxed Income	0.00%	1.00%	1.00%
Foreign Derived Intangible Income	(3.00%)	(3.00%)	(2.00%)
Pension Contribution	0.00%	0.00%	(1.00%)
Effective tax rate	12.00%	15.00%	17.00%

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deductions. Including, but not limited to, extraterritorial income exclusion deduction, qualified production activity deduction, dividend deduction, deduction for dividend paid to employee stock ownership plan, Medicare prescription drug benefit subsidy deduction, and other deductions.

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Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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