Commitments and Contingencies - Additional Information (Detail) - USD ($)	12 Months Ended
	Apr. 29, 2016	Apr. 24, 2015	Apr. 25, 2014
Commitments and Contingencies Disclosure [Line Items]
Rent expense	$ 69,000,000	$ 67,000,000	$ 66,000,000
Accrued purchase commitments with contract manufacturers	7,000,000	17,000,000
Financial guarantees not recorded on consolidated balance sheets	14,000,000
Sale of finance receivables	243,000,000	$ 197,000,000	$ 296,000,000
Legal proceedings and claims	$ 0
Maximum
Commitments and Contingencies Disclosure [Line Items]
Terms of recourse leases	3 years
Inventory
Commitments and Contingencies Disclosure [Line Items]
Purchase orders and other commitments	$ 211,000,000
Construction Related
Commitments and Contingencies Disclosure [Line Items]
Purchase orders and other commitments	37,000,000
Other
Commitments and Contingencies Disclosure [Line Items]
Purchase orders and other commitments	$ 152,000,000