Legal Proceedings (Details) $ in Millions	3 Months Ended							12 Months Ended
	Jan. 01, 2017 USD ($) patient claimant	Oct. 02, 2016 USD ($)	Jul. 03, 2016 USD ($)	Apr. 03, 2016 USD ($)	Jan. 03, 2016 USD ($)	Sep. 27, 2015 USD ($)	Jun. 28, 2015 USD ($)	Jan. 01, 2017 USD ($) patents patient claimant	Jan. 03, 2016 USD ($)	Dec. 28, 2014 USD ($)
Loss Contingencies [Line Items]
Restructuring charge, after tax | $	$ 251	$ 76	$ 97	$ 120	$ 415
Litigation expense | $	$ 96	$ 55	$ 600	$ 66		$ 409	$ 134		$ 141	$ 1,253
Xarelto
Loss Contingencies [Line Items]
Number of plaintiffs	16,900							16,900
ASR
Loss Contingencies [Line Items]
Number of plaintiffs	2,000							2,000
Pinnacle Acetabular Cup System
Loss Contingencies [Line Items]
Number of plaintiffs	9,400							9,400
Risperdal
Loss Contingencies [Line Items]
Number of plaintiffs	18,500							18,500
Pelvic Meshes
Loss Contingencies [Line Items]
Number of plaintiffs	54,800							54,800
Baby Powder
Loss Contingencies [Line Items]
Number of plaintiffs	3,100							3,100
Pending Litigation | Baby Powder
Loss Contingencies [Line Items]
Class actions filed								2
Settled Litigation | Misdemeanor Violation
Loss Contingencies [Line Items]
Litigation settlement | $								$ 20
Settled Litigation | Forfeiture
Loss Contingencies [Line Items]
Litigation settlement | $								5
Investigative Demands
Loss Contingencies [Line Items]
Litigation expense | $								$ 4
DePuy ASR U.S. | Settled Litigation
Loss Contingencies [Line Items]
Number of patients in settlement | patient	8,000							8,000
DePuy ASR U.S.Second Agreement | Pending Litigation
Loss Contingencies [Line Items]
Number of patients in settlement | patient	1,800							1,800
Medinol Ltd.
Loss Contingencies [Line Items]
Patents allegedly infringed | patents								4