Restructuring and Other Charges - Additional Information (Detail)	Jul. 26, 2013
May 2013 Restructuring
Restructuring Cost and Reserve [Line Items]
Reduction of global work force	7.00%
March 2014 Restructuring
Restructuring Cost and Reserve [Line Items]
Reduction of global work force	4.00%
May 2015 Restructuring
Restructuring Cost and Reserve [Line Items]
Reduction of global work force	3.00%
March 2016 Restructuring
Restructuring Cost and Reserve [Line Items]
Reduction of global work force	11.00%