Percentage of common stock issued to settle performance based restricted stock units of target shares granted.

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Share based compensation arrangement by share based payment award vesting period description.

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Aggregate dividends declared during the period for each share of common stock outstanding.

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Date the declared dividend will be paid, in CCYY-MM-DD format.

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Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of stock repurchase plan authorized.

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Number of shares that have been repurchased and retired during the period.

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Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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Total cost of shares repurchased divided by the total number of shares repurchased.

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Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Millions		3 Months Ended		183 Months Ended
	Aug. 15, 2018	Jul. 27, 2018	Jul. 28, 2017	Jul. 27, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to equity awards		$ 362,000,000		$ 362,000,000
Unrecognized compensation expense will be amortized on a straight-line basis over a weighted-average remaining period, in years		2 years 6 months
Stock repurchase program, authorized amount		$ 13,600,000,000		13,600,000,000
Allocation of purchase price of share repurchases		$ 500,000,000		$ 10,100,000,000
Repurchase of common stock, shares		7		291
Average price of common stock repurchased under repurchase program		$ 74.37		$ 34.79
Cash dividends declared, per common share		$ 0.40	$ 0.20
Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash dividends declared, per common share	$ 0.40
Cash dividend payable date	Oct. 24, 2018
Cash dividend record date	Oct. 05, 2018
Additional Paid-in Capital
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocation of purchase price of share repurchases		$ 277,000,000
Retained Earnings (Accumulated Deficit)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocation of purchase price of share repurchases		$ 223,000,000
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of Common stock issued to settle PBRSUs of target shares granted		0.00%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of Common stock issued to settle PBRSUs of target shares granted		200.00%
Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period		3 years
RSUs grant date fair value		$ 22,000,000		$ 22,000,000
Vesting period, description		For the remaining PBRSUs granted, the number of shares issued will depend upon our achievement against a cumulative Adjusted Operating Income (AOI) target, as defined in the grant agreements, for the three year period from fiscal 2019 through 2021.