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Commitments and Contingencies - Additional Information (Detail) - USD ($)
$ in Millions
6 Months Ended
Mar. 29, 2019
Jun. 29, 2019
Commitments and Contingencies Disclosure [Line Items]    
Payments for legal settlements $ 25  
Minimum    
Commitments and Contingencies Disclosure [Line Items]    
Losses for environmental liabilities   $ 10
Maximum    
Commitments and Contingencies Disclosure [Line Items]    
Losses for environmental liabilities   $ 20