Legal Proceedings (Details) $ in Millions	1 Months Ended	3 Months Ended
	Jan. 31, 2020 USD ($)	Mar. 29, 2020 USD ($) patient claimant	Dec. 29, 2019 USD ($) claimant	Oct. 31, 2019 USD ($)
ASR
Legal Proceeding (Textuals)
Product Liability Contingency Number Of Claimants		940
Pinnacle Acetabular Cup System
Legal Proceeding (Textuals)
Product Liability Contingency Number Of Claimants		9,500
Pelvic Meshes
Legal Proceeding (Textuals)
Product Liability Contingency Number Of Claimants		16,500
Risperdal
Legal Proceeding (Textuals)
Product Liability Contingency Number Of Claimants		10,900
XARELTO®
Legal Proceeding (Textuals)
Product Liability Contingency Number Of Claimants		24,600
Talc
Legal Proceeding (Textuals)
Product Liability Contingency Number Of Claimants		19,400
Invokana
Legal Proceeding (Textuals)
Product Liability Contingency Number Of Claimants		300
Physiomesh
Legal Proceeding (Textuals)
Product Liability Contingency Number Of Claimants		3,500
Opioid
Legal Proceeding (Textuals)
Product Liability Contingency Number Of Claimants			2,900
Judicial Ruling
Legal Proceeding (Textuals)
Loss Contingency, Damages Awarded, Value | $	$ 6.8	$ 344.0	$ 8,000.0
Pending Litigation
Legal Proceeding (Textuals)
Loss Contingency, Estimate of Possible Loss | $				$ 4,000.0
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 | settled litigation
Legal Proceeding (Textuals)
Loss Contingency, Damages Awarded, Value | $		$ 465.0
Oklahoma Attorney General vs. Johnson & Johnson and JPI | Judicial Ruling
Legal Proceeding (Textuals)
Loss Contingency, Damages Awarded, Value | $		572.0
Damages from Product Defects | Baby Powder | Judicial Ruling
Legal Proceeding (Textuals)
Litigation contingency | $		$ 4,700.0