Quarterly report pursuant to Section 13 or 15(d)

Pension Plans - Additional Information (Detail)

v2.4.1.9
Pension Plans - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Apr. 04, 2015
Defined Benefit Plan Disclosure [Line Items]  
Defined benefit pension plan contributed $ 254.9us-gaap_DefinedBenefitPlanContributionsByEmployer
Defined benefit pension plan additional contributions during the remainder of the year 18.5us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInCurrentFiscalYear
Defined Contribution Plan, Discretionary Contribution Amount $ 250.0us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount