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Contingencies - Additional Information (Detail)
$ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Apr. 30, 2018
USD ($)
Mar. 31, 2021
USD ($)
claim
case
Mar. 31, 2021
USD ($)
claim
case
Sep. 30, 2020
USD ($)
Loss Contingencies [Line Items]        
Loss contingency accrual   $ 2,500 $ 2,500 $ 2,500
Qualified settlement funds   164 164 92
Loss contingency, receivable   93 $ 93 $ 139
Other Operating Income (Expense)        
Loss Contingencies [Line Items]        
Product liability accrual, period expense   $ 296    
Hernia Product Claims        
Loss Contingencies [Line Items]        
Pending claims | claim   25,345 25,345  
Womens Health Product Claims        
Loss Contingencies [Line Items]        
Pending claims | claim   390 390  
Claims lacking sufficient information | claim   615 615  
PaymentstoSupplier   $ 160 $ 160  
Number of claims in settlement agreement | case   15,285 15,285  
Damages awarded $ 68      
Womens Health Product Claims | Compensatory        
Loss Contingencies [Line Items]        
Damages awarded 33      
Womens Health Product Claims | Punitive        
Loss Contingencies [Line Items]        
Damages awarded $ 35      
Filter Product Claims        
Loss Contingencies [Line Items]        
Pending claims | claim   410 410  
Loss Contingency, Claims Settled, Number | case     9,365