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Legal Proceedings (Details) (USD $) In Millions, unless otherwise specified | 9 Months Ended
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Sep. 29, 2013
Levaquin [Member] |
Legal Proceeding (Textuals) [Abstract] |
Product Liability Contingency Number Of Claimants | 1,490
ASR [Member] |
Legal Proceeding (Textuals) [Abstract] |
Product Liability Contingency Number Of Claimants | 12,140
Pinnacle Acetabular Cup System [Member] |
Legal Proceeding (Textuals) [Abstract] |
Product Liability Contingency Number Of Claimants | 5,160
Risperdal [Member] |
Legal Proceeding (Textuals) [Abstract] |
Product Liability Contingency Number Of Claimants | 490
Pelvic Meshes [Member] |
Legal Proceeding (Textuals) [Abstract] |
Product Liability Contingency Number Of Claimants | 23,040
Duragesic [Member] |
Legal Proceeding (Textuals) [Abstract] |
Product Liability Contingency Number Of Claimants | 30
Topamax [Member] |
Legal Proceeding (Textuals) [Abstract] |
Product Liability Contingency Number Of Claimants | 130
Pending Litigation [Member] | Restitution [Member] |
Legal Proceeding (Textuals) [Abstract] |
Litigation Settlement, Amount | $ 45.0
Pending Litigation [Member] | Civil penalties [Member] |
Legal Proceeding (Textuals) [Abstract] |
Litigation Settlement, Amount | 6.5
Pending Litigation [Member] | Risperdal [Member] | Civil penalties [Member] |
Legal Proceeding (Textuals) [Abstract] |
Litigation Settlement, Amount | 327.1
DOJ [Member] |
Legal Proceeding (Textuals) [Abstract] |
Litigation Settlement, Amount | 1,600.0
Tyco [Member] | Pending Litigation [Member] |
Legal Proceeding (Textuals) [Abstract] |
Litigation Settlement, Amount | 176.0
Saffran [Member] | Pending Litigation [Member] |
Legal Proceeding (Textuals) [Abstract] |
Litigation Settlement, Amount | 482.0
Verdict Against Company | 593
Litigation Settlement Pre Judgment Interest | 111
Risperdal [Member] |
Legal Proceeding (Textuals) [Abstract] |
Litigation Settlement, Amount | 400.0
Risperdal [Member] | Pending Litigation [Member] |
Legal Proceeding (Textuals) [Abstract] |
Litigation Settlement, Amount | 1,200.0
Risperdal [Member] | Pending Litigation [Member] | Legal professional fees [Member] |
Legal Proceeding (Textuals) [Abstract] |
Litigation Settlement, Amount | 180.0
alleged consumer fraud [Member] | Pending Litigation [Member] |
Legal Proceeding (Textuals) [Abstract] |
Litigation Settlement, Amount | 4.5
medicare fraud [Member] | Pending Litigation [Member] |
Legal Proceeding (Textuals) [Abstract] |
Litigation Settlement, Amount | 257.7
medicare fraud [Member] | Pending Litigation [Member] | Legal professional fees [Member] |
Legal Proceeding (Textuals) [Abstract] |
Litigation Settlement, Amount | $ 73.0

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- Details
Name: | jnj_LegalProceedingTextualsAbstract
Namespace Prefix: | jnj_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Litigation settlement pre judgment interest. + References No definition available. + Details
Name: | jnj_LitigationSettlementPreJudgmentInterest
Namespace Prefix: | jnj_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

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- Definition Product liability contingency number of claimant. + References No definition available. + Details
Name: | jnj_ProductLiabilityContingencyNumberOfClaimant
Namespace Prefix: | jnj_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Verdict in favor of the State's Attorney General and against Janssen and the Company. + References No definition available. + Details
Name: | jnj_VerdictAgainstCompany
Namespace Prefix: | jnj_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of judgment or settlement awarded to (against) the entity in respect of litigation. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration