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Income Taxes (Details) (USD $)
 12 Months Ended
Jan. 25, 2015
Jan. 26, 2014
Jan. 27, 2013
Current Income Tax Expense      
Federal $ 7,995,000us-gaap_CurrentFederalTaxExpenseBenefit $ 7,896,000us-gaap_CurrentFederalTaxExpenseBenefit $ 7,506,000us-gaap_CurrentFederalTaxExpenseBenefit
State 818,000us-gaap_CurrentStateAndLocalTaxExpenseBenefit 1,234,000us-gaap_CurrentStateAndLocalTaxExpenseBenefit 1,016,000us-gaap_CurrentStateAndLocalTaxExpenseBenefit
Foreign 17,356,000us-gaap_CurrentForeignTaxExpenseBenefit 18,513,000us-gaap_CurrentForeignTaxExpenseBenefit 16,766,000us-gaap_CurrentForeignTaxExpenseBenefit
Total current 26,169,000us-gaap_CurrentIncomeTaxExpenseBenefit 27,643,000us-gaap_CurrentIncomeTaxExpenseBenefit 25,288,000us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]      
Federal 83,827,000us-gaap_DeferredFederalIncomeTaxExpenseBenefit 17,070,000us-gaap_DeferredFederalIncomeTaxExpenseBenefit 28,143,000us-gaap_DeferredFederalIncomeTaxExpenseBenefit
State 0us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit 0us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit 0us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit
Foreign (1,258,000)us-gaap_DeferredForeignIncomeTaxExpenseBenefit (1,640,000)us-gaap_DeferredForeignIncomeTaxExpenseBenefit 3,717,000us-gaap_DeferredForeignIncomeTaxExpenseBenefit
Total deferred 82,569,000us-gaap_DeferredIncomeTaxExpenseBenefit 15,430,000us-gaap_DeferredIncomeTaxExpenseBenefit 31,860,000us-gaap_DeferredIncomeTaxExpenseBenefit
Charge in lieu of taxes attributable to employer stock option plans 15,511,000nvda_ChargeInLieuOfTaxesAttributableToEmployerStockOptionPlans 27,191,000nvda_ChargeInLieuOfTaxesAttributableToEmployerStockOptionPlans 42,355,000nvda_ChargeInLieuOfTaxesAttributableToEmployerStockOptionPlans
Income tax expense 124,249,000us-gaap_IncomeTaxExpenseBenefit 70,264,000us-gaap_IncomeTaxExpenseBenefit 99,503,000us-gaap_IncomeTaxExpenseBenefit
Income before Income Taxes      
Domestic 173,865,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic 79,136,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic 99,422,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
Foreign 580,971,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign 431,118,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign 562,617,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign
Income before income tax 754,836,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments 510,254,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments 662,039,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate    
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]      
Tax expense computed at federal statutory rate 264,192,000us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate 178,589,000us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate 231,714,000us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
State income taxes, net of federal tax effect 681,000us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes 1,608,000us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes 1,048,000us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Foreign tax rate differential (119,786,000)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential (93,831,000)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential (123,626,000)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential
U.S. federal R&D tax credit (34,319,000)us-gaap_IncomeTaxReconciliationTaxCreditsResearch (30,155,000)us-gaap_IncomeTaxReconciliationTaxCreditsResearch (29,294,000)us-gaap_IncomeTaxReconciliationTaxCreditsResearch
Stock-based compensation 4,332,000us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost 8,900,000us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost 11,876,000us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
Tax expense related to inter-company transaction 9,785,000nvda_Taxexpenserelatedtointercompanytransaction 9,785,000nvda_Taxexpenserelatedtointercompanytransaction 9,785,000nvda_Taxexpenserelatedtointercompanytransaction
Other (636,000)us-gaap_IncomeTaxReconciliationOtherAdjustments (4,632,000)us-gaap_IncomeTaxReconciliationOtherAdjustments (2,000,000)us-gaap_IncomeTaxReconciliationOtherAdjustments
Income tax expense 124,249,000us-gaap_IncomeTaxExpenseBenefit 70,264,000us-gaap_IncomeTaxExpenseBenefit 99,503,000us-gaap_IncomeTaxExpenseBenefit
Components of Deferred Tax Assets [Abstract]      
Net operating loss carryforwards 72,322,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards 81,629,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards  
Accruals and reserves, not currently deductible for tax purposes 109,123,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals 131,932,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals  
Property, equipment and intangible assets 45,593,000nvda_DeferredTaxAssetsPropertyEquipmentAndIntangibleAssets 48,358,000nvda_DeferredTaxAssetsPropertyEquipmentAndIntangibleAssets  
Research and other tax credit carryforwards 350,655,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwards 306,975,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwards  
Stock-based compensation 29,850,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost 33,135,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost  
Convertible debt - DTA 12,327,000nvda_ConvertibledebtDTA 14,885,000nvda_ConvertibledebtDTA  
Gross deferred tax assets 619,870,000us-gaap_DeferredTaxAssetsGross 616,914,000us-gaap_DeferredTaxAssetsGross  
Less valuation allowance (260,985,000)us-gaap_DeferredTaxAssetsValuationAllowance (244,487,000)us-gaap_DeferredTaxAssetsValuationAllowance  
Deferred Tax Assets, Net 358,885,000us-gaap_DeferredTaxAssetsNet 372,427,000us-gaap_DeferredTaxAssetsNet  
Components of Deferred Tax Liabilities [Abstract]      
Deferred Tax Liabilities Intangible Assets (24,463,000)nvda_DeferredTaxLiabilitiesIntangibleAssets (33,244,000)nvda_DeferredTaxLiabilitiesIntangibleAssets  
Unremitted earnings of foreign subsidiaries (500,031,000)us-gaap_DeferredTaxLiabilitiesUndistributedForeignEarnings (425,401,000)us-gaap_DeferredTaxLiabilitiesUndistributedForeignEarnings  
Deferred Tax Liabilities, Gross (524,494,000)us-gaap_DeferredTaxLiabilities (458,645,000)us-gaap_DeferredTaxLiabilities  
Net deferred tax asset (liability) (165,609,000)us-gaap_DeferredTaxAssetsLiabilitiesNet (86,218,000)us-gaap_DeferredTaxAssetsLiabilitiesNet  
Effective tax rate 16.50%us-gaap_EffectiveIncomeTaxRateContinuingOperations 13.80%us-gaap_EffectiveIncomeTaxRateContinuingOperations 15.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations
Operating Loss Carryforwards [Line Items]      
Excess Tax Benefit Related To Stock Based Compensation 411,900,000nvda_ExcessTaxBenefitRelatedToStockbasedcompensation    
Operating Loss Carryforwards 521,500,000us-gaap_OperatingLossCarryforwards 667,200,000us-gaap_OperatingLossCarryforwards 332,600,000us-gaap_OperatingLossCarryforwards
Deferred Tax Assets, Operating Loss Carryforwards, Foreign 316,700,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign    
Foreign net operating loss carryforwards remainder 15,900,000nvda_Foreignnetoperatinglosscarryforwardsremainder    
Undistributed Earnings Of Non United States Subsidiaries 2,270,000,000nvda_UndistributedEarningsOfNonUnitedStatesSubsidiaries    
UNITED STATES      
Operating Loss Carryforwards [Line Items]      
Deferred Tax Assets, Tax Credit Carryforwards, Research 429,600,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch
/ us-gaap_IncomeTaxAuthorityAxis
= country_US		    
State and Local Jurisdiction      
Operating Loss Carryforwards [Line Items]      
Deferred Tax Assets, Tax Credit Carryforwards, Other 3,000,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsOther
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember		    
Deferred Tax Assets, Tax Credit Carryforwards, Research 411,700,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember		    
CALIFORNIA      
Operating Loss Carryforwards [Line Items]      
Deferred Tax Assets, Tax Credit Carryforwards, Research 395,900,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch
/ us-gaap_IncomeTaxAuthorityAxis
= stpr_CA		    
Other states      
Operating Loss Carryforwards [Line Items]      
Deferred Tax Assets, Tax Credit Carryforwards, Research 15,800,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch
/ us-gaap_IncomeTaxAuthorityAxis
= nvda_OtherstatesMember		    
Foreign Country      
Operating Loss Carryforwards [Line Items]      
Deferred Tax Assets, Tax Credit Carryforwards, Other $ 18,400,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsOther
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_ForeignCountryMember