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Pensions and Other Benefit Plans (Details 12) (USD $)
In Millions, unless otherwise specified
Dec. 28, 2014
The projected future minimum contributions to the Company's U.S. and international unfunded retirement plans  
Projected future contributions, 2014 $ 74jnj_DefinedBenefitPlanExpectedFutureBenefitContributionInYearOne
Projected future contributions, 2015 75jnj_DefinedBenefitPlanExpectedFutureBenefitContributionInYearTwo
Projected future contributions, 2016 78jnj_DefinedBenefitPlanExpectedFutureBenefitContributionInYearThree
Projected future contributions, 2017 84jnj_DefinedBenefitPlanExpectedFutureBenefitContributionInYearFour
Projected future contributions, 2018 89jnj_DefinedBenefitPlanExpectedFutureBenefitContributionInYearFive
Projected future contributions, 2019-2023 $ 531jnj_DefinedBenefitPlanExpectedFutureBenefitContributionInFiveFiscalYearsThereafter