Net Income Per Share (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
Apr. 26, 2015	Apr. 27, 2014
Numerator:
Net income	$ 134us-gaap_NetIncomeLoss	$ 137us-gaap_NetIncomeLoss
Denominator:
Denominator for basic net income per share, weighted average shares	549	559
Effect of dilutive securities:
Equity awards outstanding	13	11
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities	6	0
Denominator for diluted net income per share, weighted average shares	568	570
Net income per share:
Basic net income per share	$ 0.24us-gaap_EarningsPerShareBasic	$ 0.24us-gaap_EarningsPerShareBasic
Diluted net income per share	$ 0.24us-gaap_EarningsPerShareDiluted	$ 0.24us-gaap_EarningsPerShareDiluted
Antidilutive securities excluded from computation of earnings per share	3	8
Debt Instrument, Interest Rate, Stated Percentage	1.00%
Debt Instrument, Convertible, Conversion Price	$ 20.16
Warrant Strike Price	$ 27.14nvda_WarrantStrikePrice

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Warrant Strike Price

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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The price per share of the conversion feature embedded in the debt instrument.

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Contractual interest rate for funds borrowed, under the debt agreement.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible debt securities using the if-converted method.

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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