Commitments and Contingencies (Details) $ in Millions				1 Months Ended	6 Months Ended	12 Months Ended
	Dec. 01, 2017 claim	Dec. 14, 2011 patent	Jun. 29, 2007	May 31, 2017 claim	Oct. 27, 2017 USD ($) landfill claim	Apr. 29, 2016 USD ($) claim	Apr. 28, 2017 USD ($)	Apr. 26, 2013 USD ($)
Loss Contingencies [Line Items]
Accrued certain litigation charges					$ 1,000		$ 1,100
Covidien plc
Loss Contingencies [Line Items]
Tax sharing percentage, parent			42.00%
Tax sharing percentage, former parent			27.00%
Tax sharing percentage, former affiliate			31.00%
Orrington, Maine chemical manufacturing facility
Loss Contingencies [Line Items]
Number of landfills requiring removal | landfill					2
Number of landfills requiring capping | landfill					3
Indemnification agreement | Covidien plc | Tax Years Prior To 2013
Loss Contingencies [Line Items]
Maximum potential loss for tax indemnification								$ 200
INFUSE | Product liability litigation
Loss Contingencies [Line Items]
Number of pending claims | claim					6,000
Pelvic mesh | Product liability litigation
Loss Contingencies [Line Items]
Number of pending claims | claim					15,800
Settlement receivable						$ 121
Number of claims settled | claim				5,000		11,000
Pelvic mesh | Product liability litigation | Subsequent Event
Loss Contingencies [Line Items]
Number of claims settled | claim	13,400
Ethicon
Loss Contingencies [Line Items]
Patents infringed | patent		1
Minimum | Penobscot River and Bay remediation
Loss Contingencies [Line Items]
Cost estimate for potential remediation					$ 25
Maximum | Penobscot River and Bay remediation
Loss Contingencies [Line Items]
Cost estimate for potential remediation					$ 235