Restructuring - Additional Information (Detail) - 2018 Restructuring Program $ in Millions	Oct. 26, 2018 USD ($)
Minimum
Restructuring Cost and Reserve [Line Items]
Effect on future earnings, amount	$ 60
Restructuring expected cost	105
Maximum
Restructuring Cost and Reserve [Line Items]
Restructuring expected cost	110
Employee Severance | Minimum
Restructuring Cost and Reserve [Line Items]
Restructuring expected cost	60
Payments for restructuring	60
Real Estate | Maximum
Restructuring Cost and Reserve [Line Items]
Restructuring expected cost	$ 50