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Income Taxes (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 26, 2015 | Sep. 27, 2014 | Sep. 26, 2015 | Sep. 27, 2014
Income Tax Disclosure [Abstract] |  |  |  |
Provision for income taxes | $ 76.1 | $ 57.6 | $ 210.9 | $ 163.1
Effective tax rate | 29.30% | 29.10% | 29.20% | 28.70%
Consolidated income before provision for income taxes | $ 259.5 | $ 197.7 | $ 722.1 | $ 568.4
Tax benefits related to restructuring charges, debt redemption costs, acquisition costs and various other items |  |  | $ 32.0 | 26.8
Tax benefits related to reductions in tax reserves due to tax audit settlements |  |  |  | $ 13.4
U.S. federal statutory income tax rate |  |  | 35.00% | 35.00%

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