Commitments and Contingencies (Details) $ in Millions				1 Months Ended	3 Months Ended		12 Months Ended
	Aug. 05, 2020 claim	Nov. 28, 2018 USD ($)	Dec. 14, 2011 patent	May 31, 2017 claim	Jul. 31, 2020 USD ($) manufacturer claim subsidiary landfill	Jul. 26, 2019 USD ($)	Apr. 29, 2016 USD ($) claim	Apr. 24, 2020 USD ($)
Loss Contingencies [Line Items]
Certain litigation charges, net					$ (88)	$ 47
Accrued litigation charges					$ 400			$ 500
Orrington, Maine chemical manufacturing facility
Loss Contingencies [Line Items]
Number of landfills requiring removal | landfill					2
Number of landfills requiring capping | landfill					3
Pelvic mesh | Product liability litigation
Loss Contingencies [Line Items]
Number of subsidiaries | subsidiary					2
Number of manufacturers | manufacturer					1
Amount of settlement received							$ 121
Number of claims settled | claim				5,000			11,000
Number of claimants | claim					16,200
Pelvic mesh | Product liability litigation | Subsequent Event
Loss Contingencies [Line Items]
Number of claims settled | claim	15,900
Ethicon
Loss Contingencies [Line Items]
Number of patents allegedly infringed upon | patent			1
Number of claims dismissed | patent			6
Sasso
Loss Contingencies [Line Items]
Approximate amount of verdict returned against the Company		$ 112