Legal Proceedings (Details) $ in Millions	1 Months Ended	9 Months Ended
	Oct. 31, 2019 USD ($)	Sep. 29, 2019 USD ($) patient claimant
ASR
Legal Proceeding (Textuals)
Product Liability Contingency Number Of Claimants		1,400
Pinnacle Acetabular Cup System
Legal Proceeding (Textuals)
Product Liability Contingency Number Of Claimants		10,500
Pelvic Meshes
Legal Proceeding (Textuals)
Product Liability Contingency Number Of Claimants		19,800
Risperdal
Legal Proceeding (Textuals)
Product Liability Contingency Number Of Claimants		13,600
XARELTO®
Legal Proceeding (Textuals)
Product Liability Contingency Number Of Claimants		30,700
Talc
Legal Proceeding (Textuals)
Product Liability Contingency Number Of Claimants		16,800
Invokana
Legal Proceeding (Textuals)
Product Liability Contingency Number Of Claimants		700
Physiomesh [Member]
Legal Proceeding (Textuals)
Product Liability Contingency Number Of Claimants		3,100
Opiods
Legal Proceeding (Textuals)
Product Liability Contingency Number Of Claimants		2,500
DePuy ASR U.S. | settled litigation
Legal Proceeding (Textuals)
Number of patients in settlement | patient		10,000
Oklahoma Attorney General vs. Johnson & Johnson and JPI | Judicial Ruling
Legal Proceeding (Textuals)
Loss Contingency, Damages Awarded, Value | $		$ 572
Damages from Product Defects | Baby Powder | Judicial Ruling
Legal Proceeding (Textuals)
Litigation contingency | $		$ 4,700
Subsequent Event | Judicial Ruling
Legal Proceeding (Textuals)
Loss Contingency, Damages Awarded, Value | $	$ 8,000
Subsequent Event | Pending Litigation
Legal Proceeding (Textuals)
Loss Contingency, Estimate of Possible Loss | $	$ 4,000