Summary of Significant Accounting Policies (Policies)	12 Months Ended
Jan. 25, 2015
Notes to financial statements [Abstract]
Nature of Operations [Text Block]	Our Company NVIDIA is dedicated to advancing visual computing. We enable individuals to interact with digital ideas, data and entertainment with an ease and efficiency unmatched by any other communication medium. Our two reporting segments - GPU and Tegra Processor - are based on a single underlying graphics architecture. Our GPU product brands aimed at specialized markets include GeForce for gamers; Quadro for designers; Tesla for researchers, deep learning and big-data analysts; and GRID for cloud-based visual computing users. We also integrate our GPUs into tiny mobile chips called system-on-a-chip (SOC) processors, which power tablets, and automotive infotainment and safety systems. Our Tegra brand integrates an entire computer onto a single chip, incorporating GPUs and multi-core CPUs with audio, video and input/output capabilities. They can also be integrated with baseband processors to add voice and data communication. Tegra conserves power while delivering state-of-the-art graphics and multimedia processing. Headquartered in Santa Clara, California, NVIDIA was incorporated in California in April 1993 and reincorporated in Delaware in April 1998. All references to “NVIDIA,” “we,” “us,” “our” or the “Company” mean NVIDIA Corporation and its subsidiaries, except where it is made clear that the term means only the parent company.
Fiscal Period, Policy [Policy Text Block]	Fiscal Year We operate on a 52- or a 53-week year, ending on the last Sunday in January. Fiscal years 2015, 2014 and 2013 were 52-week years.
Reclassification, Policy [Policy Text Block]	Reclassifications Certain prior fiscal year balances have been reclassified to conform to the current fiscal year presentation.
Consolidation, Policy [Policy Text Block]	Principles of Consolidation Our consolidated financial statements include the accounts of NVIDIA Corporation and its wholly-owned subsidiaries. All material intercompany balances and transactions have been eliminated in consolidation.
Use of Estimates, Policy [Policy Text Block]	Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States, or U.S. GAAP, requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. On an on-going basis, we evaluate our estimates, including those related to revenue recognition, inventories, income taxes, goodwill, cash equivalents and marketable securities, stock-based compensation, and litigation, investigation and settlement costs and other contingencies. These estimates are based on historical facts and various other assumptions that we believe are reasonable.
Revenue Recognition	Revenue Recognition Product Revenue We recognize revenue from product sales when persuasive evidence of an arrangement exists, the product has been delivered, the price is fixed or determinable and collection of the related receivable is reasonably assured. For most sales, we use a binding purchase order and in certain cases we use a contractual agreement as evidence of an arrangement. We consider delivery to occur upon shipment provided title and risk of loss have passed to the customer. At the point of sale, we assess whether the arrangement fee is fixed or determinable and whether collection is reasonably assured. If we determine that collection of a fee is not reasonably assured, we defer the fee and recognize revenue at the time collection becomes reasonably assured, which is generally upon receipt of payment. For sales to certain distributors with rights of return for which the level of returns cannot be reasonably estimated, our policy is to defer recognition of revenue and related cost of revenue until the distributors resell the product and, in some cases, when customer return rights lapse. Our customer programs primarily involve rebates, which are designed to serve as sales incentives to resellers of our products in various target markets. We account for rebates as a reduction of revenue and recognize a liability for these rebates at the later of the date at which we record the related revenue or the date at which we offer the rebate. Unclaimed rebates are reversed to revenue. Our customer programs also include marketing development funds, or MDFs. MDFs represent monies paid to retailers, system builders, original equipment manufacturers, or OEMs, distributors, add-in card partners and other channel partners that are earmarked for market segment development and expansion and typically are designed to support our partners’ activities while also promoting NVIDIA products. We account for MDFs as a reduction of revenue and apply a breakage factor to certain types of MDF programs. We also record a reduction to revenue by establishing a sales return allowance for estimated product returns at the time revenue is recognized, based primarily on historical return rates. However, if product returns for a particular fiscal period exceed historical return rates we may determine that additional sales return allowances are required to properly reflect our estimated exposure for product returns. License and Development Revenue For license arrangements that require significant customization of our intellectual property components, we generally recognize the related revenue over the period that services are performed. For most license and service arrangements, we determine progress to completion based on actual direct labor hours incurred to date as a percentage of the estimated total direct labor hours required to complete the project. A provision for estimated losses on contracts is made in the period in which the loss becomes probable and can be reasonably estimated. Costs incurred in advance of revenue recognized are recorded as deferred costs on uncompleted contracts. If the amount billed exceeds the amount of revenue recognized, the excess amount is recorded as deferred revenue. For license arrangements that do not require significant customization but where we are obligated to provide further deliverables over the term of the license agreement, we record revenue over the life of the license term, with consideration received in advance of the performance period classified as deferred revenue. Royalty revenue is recognized related to the distribution or sale of products that use our technologies under license agreements with third parties. We recognize royalty revenue upon receipt of a confirmation of earned royalties and when collectability is reasonably assured from the applicable licensee. Research and Development Expense Research and development expense includes the conceptual formulation, design, and testing of product alternatives, construction of prototypes, and operation of pilot plants Research and development costs are charged to expense as incurred.
Advertising Costs, Policy [Policy Text Block]	Advertising Expenses We expense advertising costs in the period in which they are incurred. Advertising expenses for fiscal years 2015, 2014 and 2013 were $14.6 million, $13.1 million and $9.2 million, respectively.
Lease, Policy [Policy Text Block]	Rent Expense We recognize rent expense on a straight-line basis over the lease period and accrue for rent expense incurred, but not paid.
Commitments and Contingencies, Policy [Policy Text Block]	Product Warranties We generally offer limited warranty to end-users that ranges from one to three years for products in order to repair or replace products for any manufacturing defects or hardware component failures. Cost of revenue includes the estimated cost of product warranties that are calculated at the point of revenue recognition. Under limited circumstances, we may offer an extended limited warranty to customers for certain products. We also accrue for known warranty and indemnification issues if a loss is probable and can be reasonably estimated.
Compensation Related Costs, Policy [Policy Text Block]	Stock-based Compensation We estimate the fair value of employee stock options on the date of grant using a binomial model and recognize the expense using a straight-line attribution method over the requisite employee service period. We use the closing trading price of our common stock on the date of grant, minus a dividend yield discount, as the fair value of awards of restricted stock units, or RSUs, and performance stock units, or PSUs. The compensation expense for the RSUs is recognized using a straight-line attribution method over the requisite employee service period while compensation expense for PSUs is recognized using an accelerated amortization model. We estimate the fair value of shares to be issued under our employee stock purchase plan, or ESPP, using the Black-Scholes model at the commencement of an offering period in March and September of each year. Stock-based compensation for our ESPP is expensed using an accelerated amortization model.
Legal Costs, Policy [Policy Text Block]	Litigation, Investigation and Settlement Costs From time to time, we are involved in legal actions and/or investigations by regulatory bodies. We are aggressively defending our current litigation matters. However, there are many uncertainties associated with any litigation or investigation, and we cannot be certain that these actions or other third-party claims against us will be resolved without litigation, fines and/or substantial settlement payments. If that occurs, our business, financial condition and results of operations could be materially and adversely affected. If information becomes available that causes us to determine that a loss in any of our pending litigation, investigations or settlements is probable, and we can reasonably estimate the loss associated with such events, we will record the loss in accordance with U.S. GAAP. However, the actual liability in any such litigation or investigation may be materially different from our estimates, which could require us to record additional costs.
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Foreign Currency Remeasurement We use the United States dollar as our functional currency for all of our subsidiaries. Foreign currency monetary assets and liabilities are remeasured into United States dollars at end-of-period exchange rates. Non-monetary assets and liabilities such as property and equipment, and equity are remeasured at historical exchange rates. Revenue and expenses are remeasured at average exchange rates in effect during each period, except for those expenses related to the previously noted balance sheet amounts, which are remeasured at historical exchange rates. Gains or losses from foreign currency remeasurement are included in “Other income (expense), net” in our Consolidated Statements of Income and to date have not been significant. The impact of gain or loss from foreign currency remeasurement included in determining other income (expense), net for fiscal years 2015, 2014 and 2013 was $0.5 million, $4.7 million and $(1.5) million, respectively.
Income Tax, Policy [Policy Text Block]	Income Taxes We recognize federal, state and foreign current tax liabilities or assets based on our estimate of taxes payable or refundable in the current fiscal year by tax jurisdiction. We recognize federal, state and foreign deferred tax assets or liabilities, as appropriate, for our estimate of future tax effects attributable to temporary differences and carryforwards; and we record a valuation allowance to reduce any deferred tax assets by the amount of any tax benefits that, based on available evidence and judgment, are not expected to be realized. United States income tax has not been provided on a portion of earnings of our non-U.S. subsidiaries to the extent that such earnings are considered to be indefinitely reinvested. Our calculation of current and deferred tax assets and liabilities is based on certain estimates and judgments and involves dealing with uncertainties in the application of complex tax laws. Our estimates of current and deferred tax assets and liabilities may change based, in part, on added certainty or finality to an anticipated outcome, changes in accounting standards or tax laws in the United States, or foreign jurisdictions where we operate, or changes in other facts or circumstances. In addition, we recognize liabilities for potential United States and foreign income tax contingencies based on our estimate of whether, and the extent to which, additional taxes may be due. If we determine that payment of these amounts is unnecessary or if the recorded tax liability is less than our current assessment, we may be required to recognize an income tax benefit or additional income tax expense in our financial statements accordingly. As of January 25, 2015, we had a valuation allowance of $261.0 million related to state and certain foreign deferred tax assets that management determined are not likely to be realized due, in part, to projections of future taxable income and potential utilization limitations of tax attributes acquired as a result of stock ownership changes. To the extent realization of the deferred tax assets becomes more-likely-than-not, we would recognize such deferred tax asset as an income tax benefit during the period. Our deferred tax assets do not include the excess tax benefit related to stock-based compensation that are a component of our federal and state net operating loss and research tax credit carryforwards in the amount of $411.9 million as of January 25, 2015. Consistent with prior years, the excess tax benefit reflected in our net operating loss and research tax credit carryforwards will be accounted for as a credit to shareholders' equity, if and when realized. In determining if and when excess tax benefits have been realized, we have elected to utilize the with-and-without approach with respect to such excess tax benefits. We have also elected to ignore the indirect tax effects of stock-based compensation deductions for financial and accounting reporting purposes, and specifically to recognize the full effect of the research tax credit in income from operations. We recognize the benefit from a tax position only if it is more-likely-than-not that the position would be sustained upon audit based solely on the technical merits of the tax position. Our policy is to include interest and penalties related to unrecognized tax benefits as a component of income tax expense. Please refer to Note 13 of these Notes to the Consolidated Financial Statements for additional information.
Comprehensive Income, Policy [Policy Text Block]	Comprehensive Income Comprehensive income consists of net income and other comprehensive income (loss). Other comprehensive income (loss) components include unrealized gains (losses) on available-for-sale securities, net of tax.
Earnings Per Share, Policy [Policy Text Block]	Net Income Per Share Basic net income per share is computed using the weighted average number of common shares outstanding during the period. Diluted net income per share is computed using the weighted average number of common and potentially dilutive shares outstanding during the period, using the treasury stock method. Under the treasury stock method, the effect of stock options outstanding is not included in the computation of diluted net income per share for periods when their effect is anti-dilutive. Additionally, we issued convertible notes with a net settlement feature that requires us, upon conversion, to settle the principal amount of debt for cash and the conversion premium for cash or shares of our common stock. Our convertible notes, note hedges, and related warrants contain various conversion features, which are further described in Note 11 of these Notes to the Consolidated Financial Statements. The potentially dilutive shares resulting from the convertible notes and warrants under the treasury stock method will be included in the calculation of diluted income per share when their inclusion is dilutive. However, unless actually exercised, the note hedges will not be included in the calculation of diluted net income per share, as their pre-exercised effect would be anti-dilutive under the treasury stock method.
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash and Cash Equivalents We consider all highly liquid investments that are readily convertible into cash and have an original maturity of three months or less at the time of purchase to be cash equivalents. As of January 25, 2015 and January 26, 2014, our cash and cash equivalents were $496.7 million and $1,151.6 million, respectively, which include $132.5 million and $307.9 million invested in money market funds for fiscal year 2015 and fiscal year 2014, respectively.
Marketable Securities, Policy [Policy Text Block]	Marketable Securities Marketable securities consist primarily of highly liquid investments with maturities of greater than three months when purchased. We generally classify our marketable securities at the date of acquisition as available-for-sale. These securities are reported at fair value with the related unrealized gains and losses included in accumulated other comprehensive income, a component of shareholders’ equity, net of tax. The fair value of interest-bearing securities includes accrued interest. Any unrealized losses which are considered to be other-than-temporary impairments are recorded in the other income and expense section of our consolidated statements of income. Realized gains and losses on the sale of marketable securities are determined using the specific-identification method and recorded in the other income and expense section of our consolidated statements of income. All of our available-for-sale investments are subject to a periodic impairment review. We record a charge to earnings when a decline in fair value is significantly below cost basis and judged to be other-than-temporary, or have other indicators of impairments. If the fair value of an available-for-sale debt instrument is less than its amortized cost basis, an other-than-temporary impairment is triggered in circumstances where (1) we intend to sell the instrument, (2) it is more likely than not that we will be required to sell the instrument before recovery of its amortized cost basis, or (3) a credit loss exists where we do not expect to recover the entire amortized cost basis of the instrument. In these situations, we recognize an other-than-temporary impairment in earnings equal to the entire difference between the debt instruments’ amortized cost basis and its fair value. For available-for-sale debt instruments that are considered other-than-temporarily impaired due to the existence of a credit loss, if we do not intend to sell and it is not more likely than not that we will not be required to sell the instrument before recovery of its remaining amortized cost basis (amortized cost basis less any current-period credit loss), we separate the amount of the impairment into the amount that is credit related and the amount due to all other factors. The credit loss component is recognized in earnings while loss related to all other factors is recorded as other comprehensive income.
Investment, Policy [Policy Text Block]	Fair Value of Financial Instruments The carrying value of cash equivalents, accounts receivable, accounts payable and accrued liabilities approximate their fair values due to their relatively short maturities as of January 25, 2015 and January 26, 2014. Marketable securities are comprised of available-for-sale securities that are reported at fair value with the related unrealized gains and losses included in accumulated other comprehensive income, a component of shareholders’ equity, net of tax. Fair value of the marketable securities is determined based on quoted market prices.
Concentration Risk, Credit Risk, Policy [Policy Text Block]	Concentration of Credit Risk Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash equivalents, marketable securities, accounts receivable and the note hedge. Our investment policy requires the purchase of high grade investment securities, the diversification of asset type and includes certain limits on our portfolio duration. All marketable securities are held in our name, managed by several investment managers and held by one major financial institution under a custodial arrangement. Accounts receivable from significant customers, those representing 10% or more of total accounts receivable, aggregated approximately 30% of our accounts receivable balance from two customers at January 25, 2015 and approximately 23% of our accounts receivable balance from one customer at January 26, 2014. We perform ongoing credit evaluations of our customers’ financial condition and maintain an allowance for potential credit losses. This allowance consists of an amount identified for specific customers and an amount based on overall estimated exposure. Our overall estimated exposure excludes amounts covered by credit insurance and letters of credit.
Receivables, Policy [Policy Text Block]	Accounts Receivable We maintain an allowance for doubtful accounts receivable for estimated losses resulting from the inability of our customers to make required payments. We determine this allowance, which consists of an amount identified for specific customer issues as well as an amount based on overall estimated exposure. Factors impacting the allowance include the level of gross receivables, the financial condition of our customers and the extent to which balances are covered by credit insurance or letters of credit.
Inventories	Inventories Inventory cost is computed on an adjusted standard basis, which approximates actual cost on an average or first-in, first-out basis. Inventory costs consist primarily of the cost of semiconductors purchased from subcontractors, including wafer fabrication, assembly, testing and packaging, manufacturing support costs, including labor and overhead associated with such purchases, final test yield fallout, and shipping costs, as well as the cost of purchased memory products and other component parts. We charge cost of sales for inventory provisions to write down our inventory to the lower of cost or estimated market value or to completely write off obsolete or excess inventory. Most of our inventory provisions relate to the write-off of excess quantities of products, based on our inventory levels and future product purchase commitments compared to assumptions about future demand and market conditions. Once inventory has been written-off or written-down, it creates a new cost basis for the inventory that is not subsequently written-up.
Property, Plant and Equipment, Policy [Policy Text Block]	Property and Equipment Property and equipment are stated at cost. Depreciation of property and equipment is computed using the straight-line method based on the estimated useful lives of the assets, generally three to five years. Once an asset is identified for retirement or disposition, the related cost and accumulated depreciation or amortization are removed, and a gain or loss is recorded. The estimated useful lives of our buildings are up to twenty five years. Depreciation expense includes the amortization of assets recorded under capital leases. Leasehold improvements and assets recorded under capital leases are amortized over the shorter of the expected lease term or the estimated useful life of the asset.
Goodwill and Intangible Assets, Policy [Policy Text Block]	Goodwill Goodwill is subject to our annual impairment test during the fourth quarter of our fiscal year, or earlier if indicators of potential impairment exist. For the purposes of completing our impairment test, we perform either a qualitative or a quantitative analysis on a reporting unit basis. For those reporting units where a significant change or event has occurred, where potential impairment indicators exist, or for which we have not performed a quantitative assessment recently, we utilize a two-step quantitative assessment to testing goodwill for impairment. The first step tests for possible impairment by applying a fair value-based test by weighing the results from the income approach and the market approach. The second step, if necessary, measures the amount of such impairment by applying fair value-based tests to individual assets and liabilities. Please refer to Note 5 of these Notes to the Consolidated Financial Statements for additional information. Intangible Assets Intangible assets primarily represent rights acquired under technology licenses, patents, acquired intellectual property, trademarks and customer relationships and are subject to an annual impairment test. We currently amortize our intangible assets with definitive lives over periods ranging from one to ten years using a method that reflects the pattern in which the economic benefits of the intangible asset are consumed or otherwise used up or, if that pattern cannot be reliably determined, using a straight-line amortization method.
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]	Impairment of Long-Lived Assets Long-lived assets, such as property and equipment and intangible assets subject to amortization are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset, or asset group may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset, or asset group to estimated undiscounted future cash flows expected to be generated by the asset, or asset group. If the carrying amount of an asset or asset group exceeds its estimated future cash flows, an impairment charge is recognized for the amount by which the carrying amount of the asset or asset group exceeds the estimated fair value of the asset or asset group. Fair value is determined based on the estimated discounted future cash flows expected to be generated by the asset or asset group. Assets and liabilities to be disposed of would be separately presented in the consolidated balance sheet and the assets would be reported at the lower of the carrying amount or fair value less costs to sell, and would no longer be depreciated.
Asset Retirement Obligations and Environmental Cost, Policy [Policy Text Block]	Accounting for Asset Retirement Obligations We account for asset retirement obligations associated with the retirement of tangible long-lived assets and the associated asset retirement costs. The accounting guidance applies to legal obligations associated with the retirement of long-lived assets that result from the acquisition, construction, development and/or normal use of the assets and requires that the fair value of a liability for an asset retirement obligation be recognized in the period in which it is incurred if a reasonable estimate of fair value can be made. The fair value of the liability is added to the carrying amount of the associated asset and this additional carrying amount is depreciated over the life of the asset. As of January 25, 2015 and January 26, 2014, our asset retirement obligations to return the leasehold improvements at our headquarters facility and certain laboratories at our domestic and international facilities to their original condition upon lease termination were $7.4 million and $11.1 million, respectively.
New Accounting Pronouncements, Policy [Policy Text Block]	Adoption of New and Recently Issued Accounting Pronouncements In May 2014, the FASB issued a new accounting standard update that creates a single source of revenue guidance under U.S. GAAP for all companies, in all industries. Under the new standard, recognition of revenue occurs when a customer obtains control of promised goods or services in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, the new guidance requires that reporting companies disclose the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers, including significant judgments and estimates used. This new guidance is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early adoption is not permitted. We will adopt this guidance either by using a full retrospective approach for all periods presented in the period of adoption or a modified retrospective approach. We are currently evaluating the impact of this accounting guidance on our consolidated financial statements and have not yet determined which transition method we will apply.

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Jan. 25, 2015

Notes to financial statements [Abstract]

Our Company

NVIDIA is dedicated to advancing visual computing. We enable individuals to interact with digital ideas, data and entertainment with an ease and efficiency unmatched by any other communication medium.

Our two reporting segments - GPU and Tegra Processor - are based on a single underlying graphics architecture.

Our GPU product brands aimed at specialized markets include GeForce for gamers; Quadro for designers; Tesla for researchers, deep learning and big-data analysts; and GRID for cloud-based visual computing users.

We also integrate our GPUs into tiny mobile chips called system-on-a-chip (SOC) processors, which power tablets, and automotive infotainment and safety systems. Our Tegra brand integrates an entire computer onto a single chip, incorporating GPUs and multi-core CPUs with audio, video and input/output capabilities. They can also be integrated with baseband processors to add voice and data communication. Tegra conserves power while delivering state-of-the-art graphics and multimedia processing.

Headquartered in Santa Clara, California, NVIDIA was incorporated in California in April 1993 and reincorporated in Delaware in April 1998.

All references to “NVIDIA,” “we,” “us,” “our” or the “Company” mean NVIDIA Corporation and its subsidiaries, except where it is made clear that the term means only the parent company.

Fiscal Period, Policy [Policy Text Block]

Fiscal Year

We operate on a 52- or a 53-week year, ending on the last Sunday in January. Fiscal years 2015, 2014 and 2013 were 52-week years.

Reclassification, Policy [Policy Text Block]

Reclassifications

Certain prior fiscal year balances have been reclassified to conform to the current fiscal year presentation.

Consolidation, Policy [Policy Text Block]

Principles of Consolidation

Our consolidated financial statements include the accounts of NVIDIA Corporation and its wholly-owned subsidiaries. All material intercompany balances and transactions have been eliminated in consolidation.

Use of Estimates, Policy [Policy Text Block]

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States, or U.S. GAAP, requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. On an on-going basis, we evaluate our estimates, including those related to revenue recognition, inventories, income taxes, goodwill, cash equivalents and marketable securities, stock-based compensation, and litigation, investigation and settlement costs and other contingencies. These estimates are based on historical facts and various other assumptions that we believe are reasonable.

Revenue Recognition

Product Revenue

We recognize revenue from product sales when persuasive evidence of an arrangement exists, the product has been delivered, the price is fixed or determinable and collection of the related receivable is reasonably assured. For most sales, we use a binding purchase order and in certain cases we use a contractual agreement as evidence of an arrangement. We consider delivery to occur upon shipment provided title and risk of loss have passed to the customer. At the point of sale, we assess whether the arrangement fee is fixed or determinable and whether collection is reasonably assured. If we determine that collection of a fee is not reasonably assured, we defer the fee and recognize revenue at the time collection becomes reasonably assured, which is generally upon receipt of payment.

For sales to certain distributors with rights of return for which the level of returns cannot be reasonably estimated, our policy is to defer recognition of revenue and related cost of revenue until the distributors resell the product and, in some cases, when customer return rights lapse.

Our customer programs primarily involve rebates, which are designed to serve as sales incentives to resellers of our products in various target markets. We account for rebates as a reduction of revenue and recognize a liability for these rebates at the later of the date at which we record the related revenue or the date at which we offer the rebate. Unclaimed rebates are reversed to revenue.

Our customer programs also include marketing development funds, or MDFs. MDFs represent monies paid to retailers, system builders, original equipment manufacturers, or OEMs, distributors, add-in card partners and other channel partners that are earmarked for market segment development and expansion and typically are designed to support our partners’ activities while also promoting NVIDIA products. We account for MDFs as a reduction of revenue and apply a breakage factor to certain types of MDF programs.

We also record a reduction to revenue by establishing a sales return allowance for estimated product returns at the time revenue is recognized, based primarily on historical return rates. However, if product returns for a particular fiscal period exceed historical return rates we may determine that additional sales return allowances are required to properly reflect our estimated exposure for product returns.

License and Development Revenue

For license arrangements that require significant customization of our intellectual property components, we generally recognize the related revenue over the period that services are performed. For most license and service arrangements, we determine progress to completion based on actual direct labor hours incurred to date as a percentage of the estimated total direct labor hours required to complete the project. A provision for estimated losses on contracts is made in the period in which the loss becomes probable and can be reasonably estimated. Costs incurred in advance of revenue recognized are recorded as deferred costs on uncompleted contracts. If the amount billed exceeds the amount of revenue recognized, the excess amount is recorded as deferred revenue.

For license arrangements that do not require significant customization but where we are obligated to provide further deliverables over the term of the license agreement, we record revenue over the life of the license term, with consideration received in advance of the performance period classified as deferred revenue.

Royalty revenue is recognized related to the distribution or sale of products that use our technologies under license agreements with third parties. We recognize royalty revenue upon receipt of a confirmation of earned royalties and when collectability is reasonably assured from the applicable licensee.

Research and Development Expense

Research and development expense includes the conceptual formulation, design, and testing of product alternatives, construction of prototypes, and operation of pilot plants Research and development costs are charged to expense as incurred.

Advertising Costs, Policy [Policy Text Block]

Advertising Expenses

We expense advertising costs in the period in which they are incurred. Advertising expenses for fiscal years 2015, 2014 and 2013 were $14.6 million, $13.1 million and $9.2 million, respectively.

Lease, Policy [Policy Text Block]

Rent Expense

We recognize rent expense on a straight-line basis over the lease period and accrue for rent expense incurred, but not paid.

Commitments and Contingencies, Policy [Policy Text Block]

Product Warranties

We generally offer limited warranty to end-users that ranges from one to three years for products in order to repair or replace products for any manufacturing defects or hardware component failures. Cost of revenue includes the estimated cost of product warranties that are calculated at the point of revenue recognition. Under limited circumstances, we may offer an extended limited warranty to customers for certain products. We also accrue for known warranty and indemnification issues if a loss is probable and can be reasonably estimated.

Stock-based Compensation

We estimate the fair value of employee stock options on the date of grant using a binomial model and recognize the expense using a straight-line attribution method over the requisite employee service period. We use the closing trading price of our common stock on the date of grant, minus a dividend yield discount, as the fair value of awards of restricted stock units, or RSUs, and performance stock units, or PSUs. The compensation expense for the RSUs is recognized using a straight-line attribution method over the requisite employee service period while compensation expense for PSUs is recognized using an accelerated amortization model. We estimate the fair value of shares to be issued under our employee stock purchase plan, or ESPP, using the Black-Scholes model at the commencement of an offering period in March and September of each year. Stock-based compensation for our ESPP is expensed using an accelerated amortization model.

Legal Costs, Policy [Policy Text Block]

Litigation, Investigation and Settlement Costs

From time to time, we are involved in legal actions and/or investigations by regulatory bodies. We are aggressively defending our current litigation matters. However, there are many uncertainties associated with any litigation or investigation, and we cannot be certain that these actions or other third-party claims against us will be resolved without litigation, fines and/or substantial settlement payments. If that occurs, our business, financial condition and results of operations could be materially and adversely affected. If information becomes available that causes us to determine that a loss in any of our pending litigation, investigations or settlements is probable, and we can reasonably estimate the loss associated with such events, we will record the loss in accordance with U.S. GAAP. However, the actual liability in any such litigation or investigation may be materially different from our estimates, which could require us to record additional costs.

Foreign Currency Transactions and Translations Policy [Policy Text Block]

Foreign Currency Remeasurement

We use the United States dollar as our functional currency for all of our subsidiaries. Foreign currency monetary assets and liabilities are remeasured into United States dollars at end-of-period exchange rates. Non-monetary assets and liabilities such as property and equipment, and equity are remeasured at historical exchange rates. Revenue and expenses are remeasured at average exchange rates in effect during each period, except for those expenses related to the previously noted balance sheet amounts, which are remeasured at historical exchange rates. Gains or losses from foreign currency remeasurement are included in “Other income (expense), net” in our Consolidated Statements of Income and to date have not been significant.

The impact of gain or loss from foreign currency remeasurement included in determining other income (expense), net for fiscal years 2015, 2014 and 2013 was $0.5 million, $4.7 million and $(1.5) million, respectively.

Income Tax, Policy [Policy Text Block]

Income Taxes

We recognize federal, state and foreign current tax liabilities or assets based on our estimate of taxes payable or refundable in the current fiscal year by tax jurisdiction. We recognize federal, state and foreign deferred tax assets or liabilities, as appropriate, for our estimate of future tax effects attributable to temporary differences and carryforwards; and we record a valuation allowance to reduce any deferred tax assets by the amount of any tax benefits that, based on available evidence and judgment, are not expected to be realized.

United States income tax has not been provided on a portion of earnings of our non-U.S. subsidiaries to the extent that such earnings are considered to be indefinitely reinvested.

Our calculation of current and deferred tax assets and liabilities is based on certain estimates and judgments and involves dealing with uncertainties in the application of complex tax laws. Our estimates of current and deferred tax assets and liabilities may change based, in part, on added certainty or finality to an anticipated outcome, changes in accounting standards or tax laws in the United States, or foreign jurisdictions where we operate, or changes in other facts or circumstances. In addition, we recognize liabilities for potential United States and foreign income tax contingencies based on our estimate of whether, and the extent to which, additional taxes may be due. If we determine that payment of these amounts is unnecessary or if the recorded tax liability is less than our current assessment, we may be required to recognize an income tax benefit or additional income tax expense in our financial statements accordingly.

As of January 25, 2015, we had a valuation allowance of $261.0 million related to state and certain foreign deferred tax assets that management determined are not likely to be realized due, in part, to projections of future taxable income and potential utilization limitations of tax attributes acquired as a result of stock ownership changes. To the extent realization of the deferred tax assets becomes more-likely-than-not, we would recognize such deferred tax asset as an income tax benefit during the period.

Our deferred tax assets do not include the excess tax benefit related to stock-based compensation that are a component of our federal and state net operating loss and research tax credit carryforwards in the amount of $411.9 million as of January 25, 2015. Consistent with prior years, the excess tax benefit reflected in our net operating loss and research tax credit carryforwards will be accounted for as a credit to shareholders' equity, if and when realized. In determining if and when excess tax benefits have been realized, we have elected to utilize the with-and-without approach with respect to such excess tax benefits. We have also elected to ignore the indirect tax effects of stock-based compensation deductions for financial and accounting reporting purposes, and specifically to recognize the full effect of the research tax credit in income from operations.

We recognize the benefit from a tax position only if it is more-likely-than-not that the position would be sustained upon audit based solely on the technical merits of the tax position. Our policy is to include interest and penalties related to unrecognized tax benefits as a component of income tax expense. Please refer to Note 13 of these Notes to the Consolidated Financial Statements for additional information.

Comprehensive Income, Policy [Policy Text Block]

Comprehensive Income

Comprehensive income consists of net income and other comprehensive income (loss). Other comprehensive income (loss) components include unrealized gains (losses) on available-for-sale securities, net of tax.

Earnings Per Share, Policy [Policy Text Block]

Net Income Per Share

Basic net income per share is computed using the weighted average number of common shares outstanding during the period. Diluted net income per share is computed using the weighted average number of common and potentially dilutive shares outstanding during the period, using the treasury stock method. Under the treasury stock method, the effect of stock options outstanding is not included in the computation of diluted net income per share for periods when their effect is anti-dilutive. Additionally, we issued convertible notes with a net settlement feature that requires us, upon conversion, to settle the principal amount of debt for cash and the conversion premium for cash or shares of our common stock. Our convertible notes, note hedges, and related warrants contain various conversion features, which are further described in Note 11 of these Notes to the Consolidated Financial Statements. The potentially dilutive shares resulting from the convertible notes and warrants under the treasury stock method will be included in the calculation of diluted income per share when their inclusion is dilutive. However, unless actually exercised, the note hedges will not be included in the calculation of diluted net income per share, as their pre-exercised effect would be anti-dilutive under the treasury stock method.

Cash and Cash Equivalents, Policy [Policy Text Block]

Cash and Cash Equivalents

We consider all highly liquid investments that are readily convertible into cash and have an original maturity of three months or less at the time of purchase to be cash equivalents. As of January 25, 2015 and January 26, 2014, our cash and cash equivalents were $496.7 million and $1,151.6 million, respectively, which include $132.5 million and $307.9 million invested in money market funds for fiscal year 2015 and fiscal year 2014, respectively.

Marketable Securities, Policy [Policy Text Block]

Marketable Securities

Marketable securities consist primarily of highly liquid investments with maturities of greater than three months when purchased. We generally classify our marketable securities at the date of acquisition as available-for-sale. These securities are reported at fair value with the related unrealized gains and losses included in accumulated other comprehensive income, a component of shareholders’ equity, net of tax. The fair value of interest-bearing securities includes accrued interest. Any unrealized losses which are considered to be other-than-temporary impairments are recorded in the other income and expense section of our consolidated statements of income. Realized gains and losses on the sale of marketable securities are determined using the specific-identification method and recorded in the other income and expense section of our consolidated statements of income.

All of our available-for-sale investments are subject to a periodic impairment review. We record a charge to earnings when a decline in fair value is significantly below cost basis and judged to be other-than-temporary, or have other indicators of impairments. If the fair value of an available-for-sale debt instrument is less than its amortized cost basis, an other-than-temporary impairment is triggered in circumstances where (1) we intend to sell the instrument, (2) it is more likely than not that we will be required to sell the instrument before recovery of its amortized cost basis, or (3) a credit loss exists where we do not expect to recover the entire amortized cost basis of the instrument. In these situations, we recognize an other-than-temporary impairment in earnings equal to the entire difference between the debt instruments’ amortized cost basis and its fair value. For available-for-sale debt instruments that are considered other-than-temporarily impaired due to the existence of a credit loss, if we do not intend to sell and it is not more likely than not that we will not be required to sell the instrument before recovery of its remaining amortized cost basis (amortized cost basis less any current-period credit loss), we separate the amount of the impairment into the amount that is credit related and the amount due to all other factors. The credit loss component is recognized in earnings while loss related to all other factors is recorded as other comprehensive income.

Investment, Policy [Policy Text Block]

Fair Value of Financial Instruments

The carrying value of cash equivalents, accounts receivable, accounts payable and accrued liabilities approximate their fair values due to their relatively short maturities as of January 25, 2015 and January 26, 2014. Marketable securities are comprised of available-for-sale securities that are reported at fair value with the related unrealized gains and losses included in accumulated other comprehensive income, a component of shareholders’ equity, net of tax. Fair value of the marketable securities is determined based on quoted market prices.

Concentration Risk, Credit Risk, Policy [Policy Text Block]

Concentration of Credit Risk

Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash equivalents, marketable securities, accounts receivable and the note hedge. Our investment policy requires the purchase of high grade investment securities, the diversification of asset type and includes certain limits on our portfolio duration. All marketable securities are held in our name, managed by several investment managers and held by one major financial institution under a custodial arrangement. Accounts receivable from significant customers, those representing 10% or more of total accounts receivable, aggregated approximately 30% of our accounts receivable balance from two customers at January 25, 2015 and approximately 23% of our accounts receivable balance from one customer at January 26, 2014. We perform ongoing credit evaluations of our customers’ financial condition and maintain an allowance for potential credit losses. This allowance consists of an amount identified for specific customers and an amount based on overall estimated exposure. Our overall estimated exposure excludes amounts covered by credit insurance and letters of credit.

Receivables, Policy [Policy Text Block]

Accounts Receivable

We maintain an allowance for doubtful accounts receivable for estimated losses resulting from the inability of our customers to make required payments. We determine this allowance, which consists of an amount identified for specific customer issues as well as an amount based on overall estimated exposure. Factors impacting the allowance include the level of gross receivables, the financial condition of our customers and the extent to which balances are covered by credit insurance or letters of credit.

Inventories

Inventory cost is computed on an adjusted standard basis, which approximates actual cost on an average or first-in, first-out basis. Inventory costs consist primarily of the cost of semiconductors purchased from subcontractors, including wafer fabrication, assembly, testing and packaging, manufacturing support costs, including labor and overhead associated with such purchases, final test yield fallout, and shipping costs, as well as the cost of purchased memory products and other component parts. We charge cost of sales for inventory provisions to write down our inventory to the lower of cost or estimated market value or to completely write off obsolete or excess inventory. Most of our inventory provisions relate to the write-off of excess quantities of products, based on our inventory levels and future product purchase commitments compared to assumptions about future demand and market conditions. Once inventory has been written-off or written-down, it creates a new cost basis for the inventory that is not subsequently written-up.

Property, Plant and Equipment, Policy [Policy Text Block]

Property and Equipment

Property and equipment are stated at cost. Depreciation of property and equipment is computed using the straight-line method based on the estimated useful lives of the assets, generally three to five years. Once an asset is identified for retirement or disposition, the related cost and accumulated depreciation or amortization are removed, and a gain or loss is recorded. The estimated useful lives of our buildings are up to twenty five years. Depreciation expense includes the amortization of assets recorded under capital leases. Leasehold improvements and assets recorded under capital leases are amortized over the shorter of the expected lease term or the estimated useful life of the asset.

Goodwill and Intangible Assets, Policy [Policy Text Block]

Goodwill

Goodwill is subject to our annual impairment test during the fourth quarter of our fiscal year, or earlier if indicators of potential impairment exist. For the purposes of completing our impairment test, we perform either a qualitative or a quantitative analysis on a reporting unit basis.

For those reporting units where a significant change or event has occurred, where potential impairment indicators exist, or for which we have not performed a quantitative assessment recently, we utilize a two-step quantitative assessment to testing goodwill for impairment. The first step tests for possible impairment by applying a fair value-based test by weighing the results from the income approach and the market approach. The second step, if necessary, measures the amount of such impairment by applying fair value-based tests to individual assets and liabilities. Please refer to Note 5 of these Notes to the Consolidated Financial Statements for additional information.

Intangible Assets

Intangible assets primarily represent rights acquired under technology licenses, patents, acquired intellectual property, trademarks and customer relationships and are subject to an annual impairment test. We currently amortize our intangible assets with definitive lives over periods ranging from one to ten years using a method that reflects the pattern in which the economic benefits of the intangible asset are consumed or otherwise used up or, if that pattern cannot be reliably determined, using a straight-line amortization method.

Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]

Impairment of Long-Lived Assets

Long-lived assets, such as property and equipment and intangible assets subject to amortization are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset, or asset group may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset, or asset group to estimated undiscounted future cash flows expected to be generated by the asset, or asset group. If the carrying amount of an asset or asset group exceeds its estimated future cash flows, an impairment charge is recognized for the amount by which the carrying amount of the asset or asset group exceeds the estimated fair value of the asset or asset group. Fair value is determined based on the estimated discounted future cash flows expected to be generated by the asset or asset group. Assets and liabilities to be disposed of would be separately presented in the consolidated balance sheet and the assets would be reported at the lower of the carrying amount or fair value less costs to sell, and would no longer be depreciated.

Asset Retirement Obligations and Environmental Cost, Policy [Policy Text Block]

Accounting for Asset Retirement Obligations

We account for asset retirement obligations associated with the retirement of tangible long-lived assets and the associated asset retirement costs. The accounting guidance applies to legal obligations associated with the retirement of long-lived assets that result from the acquisition, construction, development and/or normal use of the assets and requires that the fair value of a liability for an asset retirement obligation be recognized in the period in which it is incurred if a reasonable estimate of fair value can be made. The fair value of the liability is added to the carrying amount of the associated asset and this additional carrying amount is depreciated over the life of the asset. As of January 25, 2015 and January 26, 2014, our asset retirement obligations to return the leasehold improvements at our headquarters facility and certain laboratories at our domestic and international facilities to their original condition upon lease termination were $7.4 million and $11.1 million, respectively.

New Accounting Pronouncements, Policy [Policy Text Block]

Adoption of New and Recently Issued Accounting Pronouncements

In May 2014, the FASB issued a new accounting standard update that creates a single source of revenue guidance under U.S. GAAP for all companies, in all industries. Under the new standard, recognition of revenue occurs when a customer obtains control of promised goods or services in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, the new guidance requires that reporting companies disclose the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers, including significant judgments and estimates used. This new guidance is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early adoption is not permitted. We will adopt this guidance either by using a full retrospective approach for all periods presented in the period of adoption or a modified retrospective approach. We are currently evaluating the impact of this accounting guidance on our consolidated financial statements and have not yet determined which transition method we will apply.