NVIDIA (NVDA) 10-Q 20 Aug 14 2015 Q2 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document (USD $)	6 Months Ended
	Jul. 27, 2014	Aug. 15, 2014	Jul. 28, 2013
Document Information [Line Items]	'	'	'
Entity Registrant Name	'NVIDIA CORP	'	'
Entity Central Index Key	'0001045810	'	'
Current Fiscal Year End Date	'--01-25	'	'
Entity Filer Category	'Large Accelerated Filer	'	'
Document Type	'10-Q	'	'
Document Period End Date	27-Jul-14	'	'
Document Fiscal Year Focus	'2015	'	'
Document Fiscal Period Focus	'Q2	'	'
Amendment Flag	'false	'	'
Entity Common Stock, Shares Outstanding	'	541,915,105	'
Entity Well-known Seasoned Issuer	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Public Float	'	'	$7,820,789,330

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jul. 27, 2014	Jul. 28, 2013	Jul. 27, 2014	Jul. 28, 2013
Revenue	$1,102,824	$977,238	$2,205,611	$1,931,977
Cost of revenue	483,850	431,700	982,435	867,871
Gross profit	618,974	545,538	1,223,176	1,064,106
Operating expenses	'	'	'	'
Research and development	337,124	331,738	671,387	658,899
Sales, general and administrative	118,671	108,266	237,251	216,892
Total operating expenses	455,795	440,004	908,638	875,791
Income from operations	163,179	105,534	314,538	188,315
Interest income	6,829	3,865	12,539	8,941
Interest Expense	11,526	836	22,997	1,689
Other income (expense), net	-3,857	3,257	13,827	4,315
Income before income tax expense	154,625	111,820	317,907	199,882
Income tax expense	26,649	15,372	53,415	25,543
Net income	$127,976	$96,448	$264,492	$174,339
Basic net income per share	$0.23	$0.16	$0.47	$0.29
Diluted net income per share	$0.22	$0.16	$0.46	$0.29
Shares used in basic per share computation	558,223	585,345	558,657	601,109
Shares used in diluted per share computation	570,572	592,006	570,599	606,051
Cash dividends declared and paid per common share	$0.09	$0.08	$0.17	$0.15

CONDENSED_CONSOLIDATED_STATEME1

CONDENSED CONSOLIDATED STATEMENT OF COMPREHNSIVE INCOME (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jul. 27, 2014	Jul. 28, 2013	Jul. 27, 2014	Jul. 28, 2013
Net income	$127,976	$96,448	$264,492	$174,339
Net change in unrealized gains (losses) on available-for-sale securities, net of tax	-1,931	-3,377	-247	-2,986
Reclassification adjustments for net realized gains on available-for-sale securities included in net income, net of tax	-55	-1,019	-252	-1,098
Other comprehensive loss, net of tax	-1,986	-4,396	-499	-4,084
Total comprehensive income	$125,990	$92,052	$263,993	$170,255

Recovered_Sheet1

Condensed Consolidated Statement of Comprehensive Income (Parentheticals) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jul. 27, 2014	Jul. 28, 2013	Jul. 27, 2014	Jul. 28, 2013
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax	$118	$355	($351)	$78
Tax effect of Reclassification Adjustment for Sale of Securities	$30	$549	$136	$591

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Jul. 27, 2014	Jan. 26, 2014
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$515,092	$1,151,587
Marketable securities	3,870,962	3,520,223
Accounts receivable, net	469,625	426,357
Inventories	387,434	387,765
Prepaid expenses and other	67,776	70,285
Deferred income taxes	66,697	68,494
Total current assets	5,377,586	5,624,711
Property and equipment, net	556,911	582,740
Goodwill	643,179	643,179
Intangible assets, net	260,613	296,012
Other assets	95,430	104,252
Total assets	6,933,719	7,250,894
Current liabilities:	'	'
Accounts payable	261,627	324,391
Accrued liabilities and other	607,102	621,105
Total current liabilities	868,729	945,496
Long-term Debt	1,370,249	1,356,375
Other long-term liabilities	374,113	475,125
Capital lease obligations, long term	15,842	17,500
Commitments and contingencies - see Note 12	0	0
Stockholders' equity	'	'
Preferred stock	0	0
Common stock	744	732
Additional paid-in capital	3,682,742	3,483,342
Treasury stock, at cost	-3,058,149	-2,537,295
Accumulated other comprehensive income	4,378	4,877
Retained earnings	3,675,071	3,504,742
Total stockholders' equity	4,304,786	4,456,398
Total liabilities and stockholders' equity	$6,933,719	$7,250,894

CONDENSED_CONSOLIDATED_STATEME2

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jul. 27, 2014	Jul. 28, 2013
Cash flows from operating activities:	'	'
Net income	$264,492	$174,339
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization	110,690	121,584
Stock based compensation expense	73,936	65,792
Amortization of Debt Discount	13,874	0
Gains on Sales of long-lived assets and investment	-14,482	0
Deferred income taxes	38,313	-611
Tax benefits from stock based compensation	-6,843	-17,360
Other	14,124	8,867
Changes in operating assets and liabilities:	'	'
Accounts receivable	-45,747	37,271
Inventories	508	34,722
Prepaid expenses and other current assets	2,510	-4,956
Deposits and other assets	1,028	4,445
Accounts payable	-63,648	-36,452
Accrued liabilities and other long-term liabilities	-141,451	-115,522
Net cash provided by operating activities	247,304	272,119
Cash flows from investing activities:	'	'
Purchases of marketable securities	-1,682,854	-936,214
Proceeds from sale of marketable securities	869,087	1,248,511
Proceeds from maturities of marketable securities	451,474	320,838
Proceeds from sale of long-lived assets and investments	20,862	0
Purchases of property and equipment and intangible assets	-51,595	-150,653
Other	-250	-1,450
Net cash provided by (used in) investing activities	-393,276	481,032
Cash flows from financing activities:	'	'
Proceeds from issuance of common stock under employee stock plans	98,220	31,303
Payment under Capital Lease Obligations	-1,423	-1,169
Tax benefits from Stock based compensation	6,843	17,360
Payments for Repurchase of Common Stock	-500,000	-850,000
Dividend paid	-94,163	-89,610
Other Financing Activities	0	-2,500
Net cash used in financing activities	-490,523	-894,616
Change in cash and cash equivalents	-636,495	-141,465
Cash and cash equivalents at beginning of period	1,151,587	732,786
Cash and cash equivalents at end of period	515,092	591,321
Supplemental disclosures of cash flow information:	'	'
Cash paid for income taxes, net	6,766	5,083
Cash paid for interest	8,623	1,294
Other non-cash activities:	'	'
Assets acquired by assuming related liabilities	5,570	3,725
Change in unrealized losses from marketable securities	($499)	($4,084)

Summary_of_Significant_Account

Summary of Significant Accounting Policies	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Summary of Significant Accounting Policies	'
	Summary of Significant Accounting Policies
	Basis of Presentation
	The accompanying unaudited condensed consolidated financial statements were prepared in accordance with accounting principles generally accepted in the United States of America, or U.S. GAAP, for interim financial information and with the instructions to Form 10-Q and Article 10 of Securities and Exchange Commission, or SEC, Regulation S-X. In the opinion of management, all adjustments, consisting only of normal recurring adjustments except as otherwise noted, considered necessary for a fair statement of results of operations and financial position have been included. The results for the interim periods presented are not necessarily indicative of the results expected for any future period. The following information should be read in conjunction with the audited financial statements and notes thereto included in our Annual Report on Form 10-K for the fiscal year ended January 26, 2014.
	Fiscal Year
	We operate on a 52- or 53-week year, ending on the last Sunday in January.  Fiscal year 2015 and fiscal year 2014 are both 52-week years. The second quarters of fiscal years 2015 and 2014 are both 13-week quarters.
	Principles of Consolidation
	Our condensed consolidated financial statements include the accounts of NVIDIA Corporation and its wholly-owned subsidiaries. All material inter-company balances and transactions have been eliminated in consolidation.
	Reclassifications
	Certain prior fiscal year balances have been reclassified to conform to the current fiscal year presentation.
	Use of Estimates
	The preparation of financial statements in conformity with 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, cash equivalents and marketable securities, accounts receivable, inventories, income taxes, goodwill, stock-based compensation, warranty liabilities, litigation, investigation and settlement costs and other contingencies. These estimates are based on historical facts and various other assumptions that we believe are reasonable.
	Adoption of New and Recently Issued Accounting Pronouncements
	In June 2014, the Financial Accounting Standards Board, or FASB, issued new guidance related to stock-based compensation. The new guidance requires that a performance target that affects vesting, and that could be achieved after the requisite service period is rendered, be treated as a performance condition. The new guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. We currently do not have awards with a performance target where the employee would be eligible to vest in the award regardless of whether the employee is rendering service on the date the performance target is achieved. Therefore, we believe, the adoption of this new accounting guidance will not have an impact on our consolidated financial statements.
	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 may 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.
	In July 2013, the FASB issued updated guidance regarding the presentation of unrecognized tax benefits when a net operating loss carry forward, similar tax loss, or tax credit carry forward exists. The guidance requires that an unrecognized tax benefit, or a portion of an unrecognized tax benefit, be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carry forward, a similar tax loss, or a tax credit carry forward when settlement in this manner is available under the tax law. We adopted this guidance in our interim period ended April 27, 2014. The adoption of this guidance did not impact our consolidated financial statements.

Stock_Based_Compensation

Stock Based Compensation	6 Months Ended
	Jul. 27, 2014
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]	'
Stock-Based Compensation	'
	Stock-Based Compensation
	Our stock-based compensation expense is associated with stock options, restricted stock units, or RSUs, and performance stock units, or PSUs, and is measured based on the estimated fair value of equity awards at the grant date.
	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 RSUs and 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 using the Black-Scholes model at the commencement of an offering period in March and September of each year.  Stock-based compensation for our employee stock purchase plan is expensed using an accelerated amortization model.
	Our condensed consolidated statements of income include stock-based compensation expense, net of amounts capitalized as inventory, as follows:
		Three Months Ended							Six Months Ended
		July 27,			July 28,				July 27,			July 28,
		2014			2013				2014			2013
		(In thousands)							(In thousands)
	Cost of revenue	$	2,656		$	2,168			$	5,575		$	4,821
	Research and development	21,462			18,555				41,956			40,490
	Sales, general and administrative	14,297			11,672				26,405			20,481
	Total	$	38,415		$	32,395			$	73,936		$	65,792
	During the three and six months ended July 27, 2014, we granted 78,129 and 85,929 stock options, respectively, with a total grant-date fair value of $309.4 thousand and $345.3 thousand and a weighted average grant-date fair value of $3.96 and $4.02 per option, respectively. During the three and six months ended July 27, 2014, we granted 0.5 million and 3.7 million of RSUs and PSUs combined, with a total grant-date fair value of $8.4 million and $64.1 million and a weighted average grant-date fair value of $17.68 and $17.20 per share, respectively.  The PSUs were granted during the first quarter of fiscal year 2015 to our CEO and senior management as approved by our Compensation Committee.
	During the three and six months ended July 28, 2013, we granted 0.5 million and 3.3 million stock options, respectively, with an estimated total grant-date fair value of $1.4 million and $10.1 million and a weighted average grant-date fair value of $2.96 and $3.09 per option, respectively. During the three and six months ended July 28, 2013, we granted 0.7 million and 5.6 million RSUs with an estimated total grant-date fair value of $8.9 million and $66.3 million and a weighted average grant-date fair value of $13.49 and $11.93 per share, respectively.
	Of the total grant-date fair value, we estimated that the stock-based compensation expense related to the equity awards that were not expected to vest was $1.6 million and $11.5 million for the three and six months ended July 27, 2014, respectively, and $1.8 million and $13.7 million for the three and six months ended July 28, 2013, respectively. As of July 27, 2014 and January 26, 2014, the aggregate amount of unearned stock-based compensation expense related to our equity awards was $235.6 million and $241.3 million, respectively, adjusted for estimated forfeitures.  As of July 27, 2014 and January 26, 2014, we expected to recognize the unearned stock-based compensation expense related to stock options over an estimated weighted average amortization period of 2.2 years and 2.5 years, respectively. As of July 27, 2014 and January 26, 2014, we expected to recognize the unearned stock-based compensation expense related to RSUs and PSUs over an estimated weighted average amortization period of 2.6 years and 2.7 years, respectively.
	The fair value of stock options granted under our equity incentive plan and shares issued under our employee stock purchase plan have been estimated at the date of grant with the following assumptions:
		Three Months Ended				Six Months Ended
		July 27,		July 28,		July 27,			July 28,
		2014		2013		2014			2013
	Stock Options	(Using a binomial model)
	Expected life (in years)	2.5		2.4 - 3.4		2.5 - 3.2			2.4 - 3.4
	Risk-free interest rate	2.5	%	1.8% - 2.7%		2.5% - 2.8%			1.8% - 2.7%
	Volatility	31	%	30% - 33%		31	%		30% - 37%
	Dividend yield	1.8	%	2.1% - 2.2%		1.8% - 1.9%			2.1% - 2.4%
		Three Months Ended					Six Months Ended
		July 27,		July 28,			July 27,			July 28,
		2014		2013			2014			2013
	Employee Stock Purchase Plan	(Using a Black-Scholes model)
	Expected life (in years)	—		—			0.5 - 2.0			0.5 - 2.0
	Risk-free interest rate	—		—			0.1% - 0.3%			0.1% - 0.3%
	Volatility	—	%	—	%		31	%		37	%
	Dividend yield	—	%	—	%		1.9	%		2.4	%
	Equity Award Activity
	The following summarizes the stock option, RSU and PSU activity under our equity incentive plans:
		Options Outstanding		Weighted Average Exercise Price
	Stock Options	(In thousands)		(Per share)
	Balances, January 26, 2014	32,504		$	14.22
	Granted	86		$	18.66
	Exercised	(6,291	)	$	12.89
	Cancelled	(942	)	$	18.89
	Balances, July 27, 2014	25,357		$	14.39
		RSUs and PSUs Outstanding		Weighted Average Grant-Date Fair Value
	RSUs and PSUs	(In thousands)		(Per share)
	Balances, January 26, 2014	18,852		$	13.82
	Granted (1)	3,729		$	17.2
	Vested	(3,319	)	$	13.33
	Cancelled	(793	)	$	13.98
	Balances, July 27, 2014	18,469		$	14.58
	(1) Includes the total number of PSUs issuable if the maximum corporate financial performance target level for fiscal year 2015 is achieved. Depending on the actual level of achievement of the corporate performance goal at the end of fiscal year 2015, the range of PSUs issued could range from 1.4 million to 2.5 million shares.

Net_Income_Per_Share

Net Income Per Share	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Net Income Per Share	'
	Net Income Per Share
	The following is a reconciliation of the numerator and denominator of the basic and diluted net income per share computations for the periods presented:
		Three Months Ended				Six Months Ended
		July 27,		July 28,		July 27,		July 28,
		2014		2013		2014		2013
		(In thousands, except per share data)
	Numerator:
	Net income	$	127,976	$	96,448	$	264,492	$	174,339
	Denominator:
	Denominator for basic net income per share, weighted average shares	558,223		585,345		558,657		601,109
	Effect of dilutive securities:
	Equity awards outstanding	12,349		6,661		11,942		4,942
	Denominator for diluted net income per share, weighted average shares	570,572		592,006		570,599		606,051
	Net income per share:
	Basic net income per share	$	0.23	$	0.16	$	0.47	$	0.29
	Diluted net income per share	$	0.22	$	0.16	$	0.46	$	0.29
	Potentially dilutive securities excluded from diluted net income per share because their effect would have been anti-dilutive	3,987		17,749		7,928		27,039
	The denominator for diluted net income per share for the three and six months ended July 27, 2014 did not include any effect from the 1.00% Convertible Senior Notes due 2018, or the Notes. The calculation of the dilution impact is based on the treasury stock method in accordance with Accounting Standards Codification, or ASC 260, Earnings per Share. Commencing after the fiscal quarter ended on April 27, 2014, the Notes will not impact the denominator for diluted net income per share unless the average price of our common stock, as calculated under the terms of the Notes, exceeds the conversion price of $20.16 per share. Likewise, the denominator for diluted net income per share will not include any effect from the warrants that were issued simultaneously with the Notes unless the average price of our common stock, as calculated under the terms of the warrants, exceeds $27.14 per share.
	The denominator for diluted net income per share for the three and six months ended July 27, 2014 also did not include any effect from the note hedges that were issued simultaneously with the Notes. In future periods, the denominator for diluted net income per share will exclude any effect of the note hedges, unless in the event an actual conversion of any or all of the Notes occurs, the shares that would be delivered to us under the note hedges are designed to neutralize the dilutive effect of the shares that we would issue under the Notes. Please refer to Note 11 of these Notes to Condensed Consolidated Financial Statements for additional discussion regarding the Notes.

Income_Taxes

Income Taxes	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Income Taxes	'
	Income Taxes
	We recognized income tax expense of $26.6 million and $53.4 million for the three and six months ended July 27, 2014, respectively, and $15.4 million and $25.5 million for the three and six months ended July 28, 2013, respectively. Income tax expense as a percentage of income before taxes, or our effective tax rate, was 17.2% and 16.8% for the three and six months ended July 27, 2014, respectively, and 13.8% and 12.8% for the three and six months ended July 28, 2013, respectively.
	The increase in our effective tax rate in fiscal year 2015 as compared to the same period in the prior fiscal year was primarily related to the expiration of the U.S. federal research tax credit on December 31, 2013 which resulted in no tax benefit in the six months ended July 27, 2014.
	Our effective tax rate on income before tax for the first six months of fiscal year 2015 of 16.8% was lower than the United States federal statutory rate of 35% due primarily to income earned in jurisdictions where the tax rate is lower than the United States federal statutory tax rate.  Further, our effective tax rate for the first six months of fiscal year 2015 of 16.8% differs from our annual projected effective tax rate as of the first six months of fiscal year 2015 of 19.1% due to favorable discrete events that occurred in the first six months of fiscal year 2015 primarily attributable to the tax benefits recognized upon the expiration of statutes of limitations in certain non-U.S. jurisdictions.
	Our effective tax rate on income before tax for the first six months of fiscal year 2014 of 12.8% was lower than the United States federal statutory rate of 35% due primarily to income earned in jurisdictions where the tax rate is lower than the United States federal statutory tax and the benefit of the U.S. federal research tax credit.
	For the six months ended July 27, 2014, there have been no material changes to our tax years that remain subject to examination by major tax jurisdictions. Additionally, there have been no other material changes to our unrecognized tax benefits and any related interest or penalties from our fiscal year ended January 26, 2014, other than the recognition of tax benefits upon the expiration of statute of limitation in certain non-U.S. jurisdictions in the six months ended July 27, 2014.
	While we believe that we have adequately provided for all uncertain tax positions, or tax positions where it is believed not more-likely-than-not that the position will be sustained upon examination, amounts asserted by tax authorities could be greater or less than our accrued position. Accordingly, our provisions on federal, state and foreign tax related matters to be recorded in the future may change as revised estimates are made or the underlying matters are settled or otherwise resolved with the respective tax authorities. As of July 27, 2014, we do not believe that our estimates, as otherwise provided for, on such tax positions will significantly increase or decrease within the next twelve months.

Marketable_Securities

Marketable Securities	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Marketable Securities	'
	Marketable Securities
	All of our cash equivalents and marketable securities are classified as “available-for-sale” securities. These securities are reported at fair value, with the related unrealized gains and losses included in accumulated other comprehensive income, a component of stockholders’ equity, net of tax, and net realized gains and losses recorded in other income, net, on the Condensed Consolidated Statement of Income.
	We performed an impairment review of our investment portfolio as of July 27, 2014. Based on our quarterly impairment review and having considered the guidance in the relevant accounting literature, we concluded that our investments were appropriately valued and that no other than temporary impairment charges were necessary on our portfolio as of July 27, 2014.
	The following is a summary of cash equivalents and marketable securities at July 27, 2014 and January 26, 2014:
		July 27, 2014
		Amortized		Unrealized			Unrealized			Estimated
		Cost		Gain			Loss			Fair Value
		(In thousands)
	Corporate debt securities	$	2,042,721	$	2,139		$	(1,430	)	$	2,043,430
	Debt securities of United States government agencies	700,025		352			(216		)	700,161
	Debt securities issued by United States Treasury	586,484		896			(69		)	587,311
	Asset-backed securities	411,669		169			(310		)	411,528
	Mortgage-backed securities issued by United States government-sponsored enterprises	258,483		4,279			(1,340		)	261,422
	Money market funds	119,491		—			—			119,491
	Total	$	4,118,873	$	7,835		$	(3,365	)	$	4,123,343
	Classified as:
	Cash equivalents									$	252,381
	Marketable securities									3,870,962
	Total									$	4,123,343
		January 26, 2014
		Amortized		Unrealized			Unrealized			Estimated
		Cost		Gain			Loss			Fair Value
		(In thousands)
	Corporate debt securities	$	1,827,788	$	1,857		$	(1,065	)	$	1,828,580
	Debt securities of United States government agencies	1,012,740		848			(261		)	1,013,327
	Debt securities issued by United States Treasury	495,889		621			(57		)	496,453
	Money market funds	307,865		—			—			307,865
	Asset-backed securities	258,017		15			(315		)	257,717
	Mortgage-backed securities issued by United States government-sponsored enterprises	185,594		3,837			(725		)	188,706
	Total	$	4,087,893	$	7,178		$	(2,423	)	$	4,092,648
	Classified as:
	Cash equivalents									$	572,425
	Marketable securities									3,520,223
	Total									$	4,092,648
	The following table provides the breakdown of the investments with unrealized losses at July 27, 2014:
		Less than 12 months					12 months or greater						Total
		Fair Value		Gross			Fair Value			Gross			Fair Value		Gross
				Unrealized						Unrealized					Unrealized
				Losses						Losses					Losses
		(In thousands)
	Corporate debt securities	$	664,945	$	(90	)	$	1,378,485		$	(1,340	)	$	2,043,430	$	(1,430	)
	Debt securities of United States government agencies	304,481		(3		)	395,680			(213		)	700,161		(216		)
	Debt securities issued by United States Treasury	45,045		(28		)	542,266			(41		)	587,311		(69		)
	Asset-backed securities	162,899		(14		)	248,629			(296		)	411,528		(310		)
	Mortgage-backed securities issued by United States government-sponsored enterprises	—		—			261,422			(1,340		)	261,422		(1,340		)
	Total	$	1,177,370	$	(135	)	$	2,826,482		$	(3,230	)	$	4,003,852	$	(3,365	)
	The gross unrealized losses related to fixed income securities were due to changes in interest rates. We have determined that the gross unrealized losses on investment securities at July 27, 2014 are temporary in nature. Currently, we have the intent and ability to hold our investments with impairment indicators until maturity.
	The amortized cost and estimated fair value of cash equivalents and marketable securities, which are primarily debt instruments, are classified as available-for-sale at July 27, 2014 and January 26, 2014 and are shown below by contractual maturity.
		July 27, 2014					January 26, 2014
		Amortized		Estimated			Amortized			Estimated
		Cost		Fair Value			Cost			Fair Value
		(In thousands)
	Less than 1 year	$	1,296,254	$	1,296,861		$	1,883,132		$	1,883,753
	Due in 1 - 5 years	2,665,096		2,667,222			2,114,289			2,117,387
	Mortgage-backed securities issued by government-sponsored enterprises not due at a single maturity date	157,523		159,260			90,472			91,508
	Total	$	4,118,873	$	4,123,343		$	4,087,893		$	4,092,648
	Net realized gains for the three and six months ended July 27, 2014 were not significant. Net realized gains for the three and six months ended July 28, 2013 were $1.6 million and $1.7 million, respectively.

Fair_Value_of_Financial_Assets

Fair Value of Financial Assets and Liabilities	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Fair Value of Financial Assets and Liabilities	'
	Fair Value of Financial Assets and Liabilities
	Financial assets measured at fair value:
	We measure our cash equivalents and marketable securities at fair value. The fair values of our financial assets and liabilities are determined using quoted market prices of identical assets or quoted market prices of similar assets from active markets.  Our Level 1 assets consist of our money market funds. We classify securities within Level 1 assets when the fair value is obtained from real time quotes for transactions in active exchange markets involving identical assets.  Our available-for-sale securities are classified as having Level 2 inputs.  Our Level 2 assets are valued utilizing a market approach where the market prices of similar assets are provided by a variety of independent industry standard data providers to our investment custodian.  There were no significant transfers between Levels 1 and 2 assets for the three and six months ended July 27, 2014.
	Financial assets measured at fair value are summarized below:
				Fair Value Measurement as of July 27, 2014 Using
				Quoted Prices		Significant Other Observable Inputs
				in Active Markets for Identical Assets
		July 27, 2014		(Level 1)		(Level 2)
		(In thousands)
	Corporate debt securities (1)	$	2,043,430	$	—	$	2,043,430
	Debt securities issued by United States government agencies (2)	700,161		—		700,161
	Debt securities issued by United States Treasury (3)	587,311		—		587,311
	Asset-backed securities (3)	411,528		—		411,528
	Mortgage-backed securities issued by government-sponsored enterprises (3)	261,422		—		261,422
	Money market funds (4)	119,491		119,491		—
	Total cash equivalents and marketable securities	$	4,123,343	$	119,491	$	4,003,852
	-1	Includes $96.2 million in cash equivalents and $1.95 billion in marketable securities on the Condensed Consolidated Balance Sheet.
	-2	Includes $36.7 million in cash equivalents and $663.5 million in marketable securities on the Condensed Consolidated Balance Sheet.
	(3)	Included in marketable securities on the Condensed Consolidated Balance Sheet.
	-4	Included in cash equivalents on the Condensed Consolidated Balance Sheet.
	Financial liabilities measured at fair value:
	We issued $1.5 billion Notes in December 2013. The Notes are carried at their original issuance value, net of unamortized debt discount, and are not marked to market each period. The estimated fair value of the Notes was $1.63 billion and $1.53 billion as of July 27, 2014 and January 26, 2014, respectively. The estimated fair value of the Notes was determined on the basis of market prices observable for similar instruments and is considered Level 2 in the fair value hierarchy. Please refer to Note 11 of these Notes to Condensed Consolidated Financial Statements for discussion regarding the Notes.

3dfx

3dfx	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
3dfx	'
	3dfx
	During fiscal year 2002, we completed the purchase of certain assets from 3dfx Interactive, Inc., or 3dfx, for an aggregate purchase price of $74.2 million. On December 15, 2000, NVIDIA Corporation and one of our indirect subsidiaries entered into an Asset Purchase Agreement, or the APA, which closed on April 18, 2001, to purchase certain graphics chip assets from 3dfx.
	In October 2002, 3dfx filed for Chapter 11 bankruptcy protection in the United States Bankruptcy Court for the Northern District of California. In March 2003, the Trustee appointed by the Bankruptcy Court to represent 3dfx’s bankruptcy estate served his complaint on NVIDIA.  The Trustee’s complaint asserted claims for, among other things, successor liability and fraudulent transfer and sought additional payments from us. In early November 2005, NVIDIA and the Official Committee of Unsecured Creditors, or the Creditors’ Committee, agreed to a Plan of Liquidation of 3dfx, which included a conditional settlement of the Trustee’s claims against us. This conditional settlement was subject to a confirmation process through a vote of creditors and the review and approval of the Bankruptcy Court. The conditional settlement called for a payment by NVIDIA of $30.6 million to the 3dfx estate. Under the settlement, $5.6 million related to various administrative expenses and Trustee fees, and $25.0 million related to the satisfaction of debts and liabilities owed to the general unsecured creditors of 3dfx. Accordingly, during the three month period ended October 30, 2005, we recorded $5.6 million as a charge to settlement costs and $25.0 million as additional purchase price for 3dfx. The Trustee advised that he intended to object to the settlement.
	The conditional settlement reached in November 2005 never progressed through the confirmation process and the Trustee’s case still remains pending appeal.  As such, we have not reversed the accrual of $30.6 million - $5.6 million as a charge to settlement costs and $25.0 million as additional purchase price for 3dfx – that we recorded during the three months ended October 30, 2005, pending resolution of the appeal of the Trustee’s case.
	The 3dfx asset purchase price of $95.0 million and $4.2 million of direct transaction costs were allocated based on fair values presented below. The final allocation of the purchase price of the 3dfx assets is contingent upon the outcome of all of the 3dfx litigation. Please refer to Note 12 of these Notes to Condensed Consolidated Financial Statements for further information regarding this litigation.
		Fair Market Value		Straight-Line Amortization Period
		(In thousands)		(In years)
	Property and equipment	$	2,433	2-Jan
	Trademarks	11,310		5
	Goodwill	85,418		—
	Total	$	99,161

Intangible_Assets

Intangible Assets	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Intangible Assets	'
	Intangible Assets
	The components of our amortizable intangible assets are as follows:
		July 27, 2014							January 26, 2014
		Gross		Accumulated			Net Carrying		Gross		Accumulated Amortization			Net Carrying
		Carrying		Amortization			Amount		Carrying					Amount
		Amount							Amount
		(In thousands)
	Acquisition-related intangible assets	$	189,239	$	(124,083	)	$	65,156	$	189,239	$	(114,104	)	$	75,135
	Patents and licensed technology	449,204		(253,747		)	195,457		446,196		(225,319		)	220,877
	Total intangible assets	$	638,443	$	(377,830	)	$	260,613	$	635,435	$	(339,423	)	$	296,012
	Amortization expense associated with intangible assets for the three and six months ended July 27, 2014 was $19.3 million and $38.4 million, respectively. Amortization expense associated with intangible assets for the three and six months ended July 28, 2013 was $18.6 million and $36.0 million, respectively. Amortization expense increased compared to the prior year primarily due to the addition of licensed technology, the purchase of certain assets of a business, and the addition of acquired in-process research and development technology that was determined to be complete. Future amortization expense related to the net carrying amount of intangible assets at July 27, 2014 is estimated to be $40.0 million for the remainder of fiscal year 2015, $71.9 million in fiscal year 2016, $63.7 million in fiscal year 2017, $49.0 million in fiscal year 2018, $20.4 million in fiscal year 2019 and a total of $15.6 million in fiscal year 2020 and beyond.

Balance_Sheet_Components

Balance Sheet Components	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Balance Sheet Components	'
	Balance Sheet Components
	Certain balance sheet components are as follows:
		July 27,		January 26,
		2014		2014
	Inventories:	(In thousands)
	Raw materials	$	126,191	$	126,896
	Work in-process	85,895		94,844
	Finished goods	175,348		166,025
	Total inventories	$	387,434	$	387,765
	At July 27, 2014, we had outstanding inventory purchase obligations totaling $486.3 million.
		July 27,		January 26,
		2014		2014
	Accrued Liabilities and Other:	(In thousands)
	Deferred revenue, short-term	$	265,704	$	265,616
	Accrued customer programs (1)	131,973		157,840
	Accrued payroll and related expenses	112,024		109,721
	Accrued legal settlement (2)	30,600		30,600
	Professional service fees	12,218		13,572
	Customer advances	11,329		9,297
	Office lease related liabilities	8,549		3,139
	Warranty accrual (3)	8,202		7,571
	Taxes payable, short-term	5,810		2,378
	Coupon interest on Notes	2,542		2,500
	Other	18,151		18,871
	Total accrued liabilities and other	$	607,102	$	621,105
	(1) Please refer to Note 1 of the Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the fiscal year ended January 26, 2014, for discussion regarding the nature of accrued customer programs and their accounting treatment related to our revenue recognition policies and estimates.
	(2)  Please refer to Note 12 of these Notes to Condensed Consolidated Financial Statements for discussion regarding the 3dfx litigation.
	(3)  Please refer to Note 10 of these Notes to Condensed Consolidated Financial Statements for discussion regarding the warranty accrual.
		July 27,		January 26,
		2014		2014
	Other Long-Term Liabilities:	(In thousands)
	Deferred income tax liability	$	192,702	$	157,953
	Income taxes payable, long-term	119,661		119,977
	Deferred revenue, long-term (1)	40,063		172,199
	Asset retirement obligation	7,386		11,056
	Other long-term liabilities	14,301		13,940
	Total other long-term liabilities	$	374,113	$	475,125
	(1) Consists primarily of annual consideration received in advance of our performance obligation under our patent cross licensing agreement with Intel Corporation entered into in January 2011. The decrease in deferred revenue, long-term, is a result of revenue recognized during the six months ended July 27, 2014.

Guarantees

Guarantees	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Guarantees	'
	Guarantees
	U.S. GAAP requires that upon issuance of a guarantee, the guarantor must recognize a liability for the fair value of the obligation it assumes under that guarantee. In addition, U.S. GAAP requires disclosures about the guarantees that an entity has issued, including a tabular reconciliation of the changes of the entity’s product warranty liabilities.
	Accrual for Product Warranty Liabilities
	We record a reduction to revenue for estimated product returns at the time revenue is recognized primarily based on historical return rates. Cost of revenue includes the estimated cost of product warranties.  Under limited circumstances, we may offer an extended limited warranty to customers for certain products.  Additionally, we accrue for known warranty and indemnification issues if a loss is probable and can be reasonably estimated. The estimated product warranty liabilities for the three and six months ended July 27, 2014 and July 28, 2013 were as follows:
		Three Months Ended						Six Months Ended
		July 27,			July 28,			July 27,			July 28,
		2014			2013			2014			2013
		(In thousands)
	Balance at beginning of period	$	8,250		$	14,833		$	7,571		$	14,874
	Additions	1,155			3,482			3,189			4,900
	Deductions	(1,203		)	(841		)	(2,558		)	(2,300		)
	Balance at end of period	$	8,202		$	17,474		$	8,202		$	17,474
	In connection with certain agreements that we have executed in the past, we have at times provided indemnities to cover the indemnified party for matters such as tax, product and employee liabilities. We have also on occasion included intellectual property indemnification provisions in our technology related agreements with third parties. Maximum potential future payments cannot be estimated because many of these agreements do not have a maximum stated liability. As such, we have not recorded any liability in our Condensed Consolidated Financial Statements for such indemnifications.

Longterm_debt

Long-term debt	6 Months Ended
	Jul. 27, 2014
Debt Instrument [Line Items]	'
Debt Disclosure [Text Block]	'
	Long-Term Debt
	1.00 % Convertible Senior Notes Due 2018
	On December 2, 2013, we issued $1.5 billion of 1.00% convertible senior notes due 2018, or the Notes. The Notes are unsecured, unsubordinated obligations of the Company, which pay interest in cash semi-annually at a rate of 1.00% per annum. The Notes will mature on December 1, 2018 unless earlier repurchased or converted in accordance with their terms prior to such date. The Notes may be converted, under the conditions specified below, based on an initial conversion rate of 49.60 shares of common stock per $1,000 principal amount of Notes (equivalent to an initial conversion price of $20.16 per share of common stock), subject to adjustment as described in the indenture governing the Notes.
	Holders may convert their notes at their option at any time prior to August 1, 2018 only under the following circumstances: (1) during any fiscal quarter commencing after the fiscal quarter ended on April 27, 2014 (and only during such fiscal quarter), if the last reported sale price of the common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding fiscal quarter is greater than or equal to 130% of the conversion price on each applicable trading day; (2) during the five business day period after any five consecutive trading day period (the measurement period) in which the trading price per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of our common stock and the conversion rate on each such trading day; or (3) upon the occurrence of specified corporate events. On or after August 1, 2018 to the close of business on the second scheduled trading day immediately preceding the maturity date, holders may convert all or any portion of their notes regardless of the foregoing conditions. Upon conversion, we will pay cash up to the aggregate principal amount of the notes to be converted and pay or deliver, as the case may be, cash, shares of our common stock or a combination of cash and shares of our common stock, at our election, in respect of the remainder, if any, of our conversion obligation in excess of the aggregate principal amount of the notes being converted.
	As of July 27, 2014, none of the conditions allowing holders of the Notes to convert had been met. The determination of whether or not the Notes are convertible must be performed quarterly. If the Notes become convertible at the option of the holder, the difference between the principal amount and the carrying value of the Notes would be reflected as convertible debt in the mezzanine equity section on our Condensed Consolidated Balance Sheets.
	In accordance with ASC 470-20 Debt with Conversion and Other Options, all cash-settled convertible debt should be separated into debt and equity components at issuance and be assigned a fair value. The value assigned to the debt component is the estimated fair value, as of the issuance date, of a similar debt without the conversion feature. The difference between the net cash proceeds and this estimated fair value, represents the value assigned to the equity component and is recorded as a debt discount. The debt discount is amortized using the effective interest method from the origination date through its stated contractual maturity date.
	The initial debt component of the Notes was valued at $1,351.8 million based on the contractual cash flows discounted at an appropriate market rate for a non-convertible debt at the date of issuance, which was determined to be 3.15%. The carrying value of the permanent equity component reported in additional paid-in-capital was valued at $125.7 million and recorded as a debt discount. This amount, together with the $22.5 million purchaser's discount to the par value of the Notes represents the total unamortized debt discount of $148.2 million we recorded at the time of issuance of the Notes. The aggregate debt discount is amortized as interest expense over the contractual term of the Notes using the effective interest method using an interest rate of 3.15%.
	The following table presents the carrying amounts of the liability and equity components:
		July 27,			January 26,
		2014			2014
		(In thousands)
	Amount of the equity component	$	125,725		$	125,725
	1.00% convertible senior notes due 2018	$	1,500,000		$	1,500,000
	Unamortized debt discount (1)	(129,751		)	(143,625		)
	Net carrying amount	$	1,370,249		$	1,356,375
	(1) As of July 27, 2014, the unamortized debt discount will be amortized over a remaining period of 4.4 years.
	The following table presents the interest expense for the contractual interest and the accretion of debt discount and issuance costs:
		Three Months Ended						Six Months Ended
		July 27,			July 28,			July 27,		July 28,
		2014			2013			2014		2013
		(In thousands)
	Contractual coupon interest expense	$	3,750		$	—		$	7,500	$	—
	Amortization of debt discount	6,973			—			13,874		—
	Amortization of debt issuance costs	49			—			97		—
	Total interest expense related to Notes	$	10,772		$	—		$	21,471	$	—

Commitments_and_Contingencies

Commitments and Contingencies	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	3dfx
	On December 15, 2000, NVIDIA and one of our indirect subsidiaries entered into an Asset Purchase Agreement, or APA, to purchase certain graphics chip assets from 3dfx. The transaction closed on April 18, 2001. In October 2002, 3dfx filed for bankruptcy.
	Following the bankruptcy, in March 2003, the Trustee appointed by the Bankruptcy Court to represent 3dfx's bankruptcy estate served a complaint on NVIDIA asserting claims for, among other things, successor liability and fraudulent transfer and seeking additional payments from us. The Trustee's fraudulent transfer theory alleged that NVIDIA had failed to pay reasonably equivalent value for 3dfx's assets, and sought recovery of the difference between the $70.0 million paid and the alleged fair value, which difference the Trustee estimated to exceed $50.0 million. The Trustee's successor liability theory alleged NVIDIA was effectively 3dfx's legal successor and therefore was responsible for all of 3dfx's unpaid liabilities.
	In early November 2005, after several months of mediation, NVIDIA and the Official Committee of Unsecured Creditors, or the Creditors' Committee, agreed to a Plan of Liquidation of 3dfx, which included a conditional settlement of the Trustee's claims against us. This conditional settlement was subject to a confirmation process through a vote of creditors and the review and approval of the Bankruptcy Court. The conditional settlement called for a payment by NVIDIA of $30.6 million to the 3dfx estate. Under the settlement, $5.6 million related to various administrative expenses and Trustee fees, and $25.0 million related to the satisfaction of debts and liabilities owed to the general unsecured creditors of 3dfx. Accordingly, during the three month period ended October 30, 2005, we recorded $5.6 million as a charge to settlement costs and $25.0 million as additional purchase price for 3dfx. The Trustee advised that he intended to object to the settlement. The conditional settlement never progressed substantially through the confirmation process.
	In March 2007, a trial was held regarding certain valuation issues in the Trustee's constructive fraudulent transfer claims against NVIDIA. On April 30, 2008, the Bankruptcy Court issued its Memorandum Decision After Trial, in which it provided a detailed summary of the trial proceedings and the parties' contentions and evidence and concluded that “the creditors of 3dfx were not injured by the Transaction.” This decision did not entirely dispose of the Trustee's action, however, as the Trustee's claims for successor liability and intentional fraudulent conveyance were still pending. On June 19, 2008, NVIDIA filed a motion for summary judgment to convert the Memorandum Decision After Trial to a final judgment. That motion was granted in its entirety and judgment was entered in NVIDIA's favor on September 11, 2008. The Trustee filed a Notice of Appeal from that judgment on September 22, 2008, and on September 25, 2008, NVIDIA exercised its election to have the appeal heard by the United States District Court.
	On December 20, 2010, the District Court issued an Order affirming the Bankruptcy Court's entry of summary judgment in NVIDIA's favor, and on January 19, 2011, the Trustee filed a Notice of Appeal to the United States Court of Appeals for the Ninth Circuit. The hearing on the appeal is currently scheduled for October 8, 2014.
	While the conditional settlement reached in November 2005 never progressed through the confirmation process, the Trustee's case still remains pending on appeal. Accordingly, we have not reversed the accrual of $30.6 million - $5.6 million as a charge to settlement costs and $25.0 million as additional purchase price for 3dfx - that we recorded during the three months ended October 30, 2005, pending resolution of the appeal of the Trustee's case.
	Securities Cases
	In September 2008, three putative securities class actions were filed in the United States District Court for the Northern District of California arising out of our announcements on July 2, 2008, that we would take a charge against cost of revenue to cover anticipated costs and expenses arising from a weak die/packaging material set in certain versions of our previous generation MCP and GPU products and that we were revising financial guidance for our second quarter of fiscal year 2009. The actions purport to be brought on behalf of purchasers of NVIDIA stock and assert claims for violations of Sections 10(b) and 20(a) of the Securities Exchange Act of 1934.
	On January 22, 2010, Plaintiffs filed a Consolidated Amended Class Action Complaint, asserting claims for violations of Section 10(b), Rule 10b-5, and Section 20(a) of the Securities Exchange Act and seeking unspecified compensatory damages. We moved to dismiss the consolidated complaint and on October 19, 2010, Judge Seeborg granted our motion with leave to amend. On December 2, 2010, Plaintiffs filed a Second Consolidated Amended Complaint. We again moved to dismiss and on October 12, 2011, Judge Seeborg again granted our motion to dismiss, this time denying Plaintiffs leave to amend. On November 8, 2011, Plaintiffs filed a Notice of Appeal to the Ninth Circuit. Oral argument was held on January 14, 2014 and the appeal is currently under submission.
	Accounting for Loss Contingencies
	While there can be no assurance of favorable outcomes, we believe the claims made by other parties in the above ongoing matters are without merit and we intend to vigorously defend the actions. With the exception of the 3dfx case, we have not recorded any accrual for contingent liabilities associated with the legal proceedings described above based on our belief that liabilities, while possible, are not probable. Further, any possible range of loss in these matters cannot be reasonably estimated at this time. We are engaged in other legal actions not described above arising in the ordinary course of its business and, while there can be no assurance of favorable outcomes, we believe that the ultimate outcome of these actions will not have a material adverse effect on our operating results, liquidity or financial position.

Stockholders_Equity

Stockholders' Equity	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Stockholders' Equity	'
	Stockholders’ Equity
	Stock Repurchase Program
	Beginning August 2004, our Board of Directors authorized us, subject to certain specifications, to repurchase shares of our common stock. Most recently, in November 2013, the Board extended the previously authorized repurchase program through January 2016 and authorized an additional $1.00 billion for an aggregate of $3.70 billion under the repurchase program. Through July 27, 2014, we have repurchased an aggregate of 188.7 million shares under our stock repurchase program for a total cost of $2.95 billion. As of July 27, 2014, we are authorized, subject to certain specifications, to repurchase shares of our common stock up to $748.4 million through January 2016.
	The repurchases will be made from time to time in the open market, in privately negotiated transactions, or in structured stock repurchase programs, and may be made in one or more larger repurchases, in compliance with Rule 10b-18 of the Exchange Act, subject to market conditions, applicable legal requirements, and other factors. The program does not obligate NVIDIA to acquire any particular amount of common stock and the program may be suspended at any time at our discretion. As part of our share repurchase program, we have entered into, and we may continue to enter into, structured share repurchase transactions with financial institutions. These agreements generally require that we make an up-front payment in exchange for the right to receive a fixed number of shares of our common stock upon execution of the agreement, and a potential incremental number of shares of our common stock, within a pre-determined range, at the end of the term of the agreement.
	In November 2013, we announced the intention to return $1.00 billion to shareholders in fiscal year 2015 in the form of share repurchases and cash dividends. During February 2014, we executed a $500.0 million accelerated share repurchase, or ASR, agreement with an investment bank that was completed in July 2014. Under the ASR, we have repurchased 27.4 million shares in aggregate at an average price of $18.23 per share, of which 20.6 million shares were delivered in the first quarter of fiscal year 2015 and 6.8 million shares were delivered in the second quarter of fiscal year 2015. The shares delivered resulted in a reduction, on the delivery date, of the outstanding shares used to calculate the weighted-average common shares outstanding for basic and diluted earnings per share. As of July 27, 2014, all shares delivered from the ASR have been placed into treasury stock.
	Dividends
	During the three and six months ended July 27, 2014, we paid $47.4 million and $94.2 million, respectively, in dividends to our common stockholders. These dividends were equivalent to $0.085 per share on a quarterly basis, or $0.34 per share on an annual basis.
	Convertible Preferred Stock
	There are no shares of preferred stock outstanding.
	Common Stock
	We are authorized to issue up to 2,000,000,000 shares of our common stock at $0.001 per share par value.

Segment_Information

Segment Information	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Segment Information	'
	Segment Information
	Our Chief Executive Officer, who is considered to be our chief operating decision maker, or CODM, reviews financial information presented on an operating segment basis for purposes of making operating decisions and assessing financial performance. Our operating segments are equivalent to our reportable segments. We report our business in two primary reporting segments - the GPU business and the Tegra Processor business.
	Our GPU business leverages our GPU technology across multiple end markets. It comprises four primary product lines: GeForce for consumer desktop and notebook PCs; Quadro for professional workstations; Tesla for high-performance computing; and NVIDIA GRID to provide the power of NVIDIA graphics through the cloud. It also includes other related products, licenses and revenue supporting the GPU business, such as memory products.
	Our Tegra Processor business comprises primarily product lines based on our Tegra SOC and modem processor technologies, including Tegra for tablets, smartphones and gaming devices; Icera baseband processors and RF transceivers; automotive computers, including infotainment and navigation systems; and gaming devices, such as SHIELD. It also includes embedded products and license and other revenue associated with game consoles.
	During the fourth quarter of fiscal year 2014, our CODM completed a refinement of the methodology utilized to assign expenses to the GPU and Tegra Processor businesses to align to the Company’s product architecture and roadmap. With the announcement of our Tegra K1 processor, we now have a single unifying architecture for our GPU and Tegra Processors. This architecture unification prompted a methodology change that leverages our visual computing expertise by charging the operating expenses of certain core engineering functions to the GPU business, while charging the Tegra Processor business for the incremental cost of the teams working directly for that business. In instances where the operating expenses of certain functions benefit both reporting segments, our CODM assigns 100% of those expenses to the reporting segment that benefits the most. The revenue and cost of revenue of the reporting segments was not affected, and comparative periods presented below reflect the impact of this change.
	The “All Other” category presented below represents the revenue and expenses that our CODM does not assign to either the GPU business or the Tegra Processor business for purposes of making operating decisions or assessing financial performance. The revenue includes patent licensing revenue and the expenses include corporate infrastructure and support costs, stock-based compensation costs, amortization of acquisition-related intangible assets, other acquisition-related costs, and other non-recurring charges and benefits that our CODM deems to be enterprise in nature.
	Our CODM does not review any information regarding total assets on a reporting segment basis. We do not have intersegment revenue. The accounting policies for segment reporting are the same as for the Company as a whole.
		GPU				Tegra Processor				All Other				Consolidated
		(In thousands)
	Three Months Ended July 27, 2014
	Revenue	$	877,980			$	158,844			$	66,000			$	1,102,824
	Depreciation and amortization expense	$	29,493			$	14,562			$	11,552			$	55,607
	Operating income (loss)	$	240,908			$	(54,542	)		$	(23,187	)		$	163,179
	Three Months Ended July 28, 2013
	Revenue	$	858,613			$	52,625			$	66,000			$	977,238
	Depreciation and amortization expense	$	36,001			$	15,431			$	10,408			$	61,840
	Operating income (loss)	$	207,914			$	(83,560	)		$	(18,820	)		$	105,534
	Six Months Ended July 27, 2014
	Revenue	$	1,775,343			$	298,268			$	132,000			$	2,205,611
	Depreciation and amortization expense	$	59,017			$	28,730			$	22,943			$	110,690
	Operating income (loss)	$	476,104			$	(115,981	)		$	(45,585	)		$	314,538
	Six Months Ended July 28, 2013
	Revenue	$	1,644,225			$	155,752			$	132,000			$	1,931,977
	Depreciation and amortization expense	$	71,919			$	28,953			$	20,712			$	121,584
	Operating income (loss)	$	366,440			$	(138,550	)		$	(39,575	)		$	188,315
		Three Months Ended							Six Months Ended
		July 27,				July 28,			July 27,				July 28,
		2014				2013			2014				2013
		(In thousands)
	Reconciling items included in "All Other" category :
	Revenue not allocated to reporting segments	$	66,000			$	66,000		$	132,000			$	132,000
	Unallocated corporate operating expenses	(41,599		)		(41,171		)	(85,035		)		(85,668		)
	Stock-based compensation	(38,415		)		(32,395		)	(73,936		)		(65,792		)
	Acquisition-related costs	(9,173		)		(8,964		)	(18,614		)		(17,825		)
	Other non-recurring expenses	—				(2,290		)	—				(2,290		)
	Total	$	(23,187	)		$	(18,820	)	$	(45,585	)		$	(39,575	)
	Revenue by geographic region is allocated to individual countries based on the location to which the products are initially billed even if our customers’ revenue is attributable to end customers that are located in a different location. The following tables summarize information pertaining to our revenue from customers based on invoicing address in different geographic regions:
		Three Months Ended								Six Months Ended
		July 27,				July 28,				July 27,				July 28,
		2014				2013				2014				2013
		(In thousands)
	Revenue:
	Taiwan	$	330,917			$	319,004			$	703,776			$	608,885
	China	251,768				184,086				475,230				359,130
	United States	206,128				163,796				379,063				349,774
	Other Asia Pacific	150,799				165,117				305,649				332,374
	Other Americas	83,055				76,531				174,818				141,538
	Europe	80,157				68,704				167,075				140,276
	Total revenue	$	1,102,824			$	977,238			$	2,205,611			$	1,931,977
	Revenue from significant customers, those representing 10% or more of total revenue for the respective dates, is summarized as follows:
		Three Months Ended						Six Months Ended
		July 27,			July 28,			July 27,			July 28,
		2014			2013			2014			2013
	Revenue:
	Customer A	11	%		11	%		10	%		11	%
	Customer B	10	%		12	%		9	%		11	%
	Revenue from Customer A was attributable primarily to the GPU business for the three and six months ended July 27, 2014 and to both the GPU and Tegra Processor businesses for the three and six months ended July 28, 2013. Revenue from Customer B was attributable to the GPU business for all comparative periods presented.
	Accounts receivable from significant customers, those representing 10% or more of total accounts receivable for the respective periods, is summarized as follows:
		July 27,			January 26,
		2014			2014
	Accounts Receivable:
	Customer B	21	%		23	%
	Customer C	10	%		9	%

Subsequent_Events

Subsequent Events	6 Months Ended
	Jul. 27, 2014
Subsequent Event [Line Items]	'
Subsequent Events [Text Block]	'
	Subsequent Event
	In August 2014, as part of our stock repurchase program, we entered into an accelerated share repurchase agreement, or ASR, with an investment bank, under which we paid $310.0 million to purchase shares of our common stock and received 10.9 million shares. Upon final settlement of the ASR, we may either (1) receive additional shares of our common stock, or (2) be required to deliver shares of our common stock or elect to make a cash payment to the investment bank, based on the terms and conditions under the ASR. The shares we receive result in a reduction, on the delivery date, of the outstanding shares used to calculate the weighted-average common shares outstanding for basic and diluted earnings per share.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Basis of Presentation	'
	Basis of Presentation
	The accompanying unaudited condensed consolidated financial statements were prepared in accordance with accounting principles generally accepted in the United States of America, or U.S. GAAP, for interim financial information and with the instructions to Form 10-Q and Article 10 of Securities and Exchange Commission, or SEC, Regulation S-X. In the opinion of management, all adjustments, consisting only of normal recurring adjustments except as otherwise noted, considered necessary for a fair statement of results of operations and financial position have been included. The results for the interim periods presented are not necessarily indicative of the results expected for any future period. The following information should be read in conjunction with the audited financial statements and notes thereto included in our Annual Report on Form 10-K for the fiscal year ended January 26, 2014.
New Accounting Pronouncements	'
	Adoption of New and Recently Issued Accounting Pronouncements
	In June 2014, the Financial Accounting Standards Board, or FASB, issued new guidance related to stock-based compensation. The new guidance requires that a performance target that affects vesting, and that could be achieved after the requisite service period is rendered, be treated as a performance condition. The new guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. We currently do not have awards with a performance target where the employee would be eligible to vest in the award regardless of whether the employee is rendering service on the date the performance target is achieved. Therefore, we believe, the adoption of this new accounting guidance will not have an impact on our consolidated financial statements.
	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 may 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.
	In July 2013, the FASB issued updated guidance regarding the presentation of unrecognized tax benefits when a net operating loss carry forward, similar tax loss, or tax credit carry forward exists. The guidance requires that an unrecognized tax benefit, or a portion of an unrecognized tax benefit, be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carry forward, a similar tax loss, or a tax credit carry forward when settlement in this manner is available under the tax law. We adopted this guidance in our interim period ended April 27, 2014. The adoption of this guidance did not impact our consolidated financial statements.
Fiscal Period, Policy [Policy Text Block]	'
	Fiscal Year
	We operate on a 52- or 53-week year, ending on the last Sunday in January.  Fiscal year 2015 and fiscal year 2014 are both 52-week years. The second quarters of fiscal years 2015 and 2014 are both 13-week quarters.
Consolidation, Policy [Policy Text Block]	'
	Principles of Consolidation
	Our condensed consolidated financial statements include the accounts of NVIDIA Corporation and its wholly-owned subsidiaries. All material inter-company balances and transactions have been eliminated in consolidation.
Reclassification, Policy [Policy Text Block]	'
	Reclassifications
	Certain prior fiscal year balances have been reclassified to conform to the current fiscal year presentation.
Use of Estimates, Policy [Policy Text Block]	'
	Use of Estimates
	The preparation of financial statements in conformity with 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, cash equivalents and marketable securities, accounts receivable, inventories, income taxes, goodwill, stock-based compensation, warranty liabilities, litigation, investigation and settlement costs and other contingencies. These estimates are based on historical facts and various other assumptions that we believe are reasonable.

Stock_Based_Compensation_Table

Stock Based Compensation (Tables)	6 Months Ended
	Jul. 27, 2014
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]	'
Stock-based compensation expense, net of amounts capitalized as inventory	'
		Three Months Ended							Six Months Ended
		July 27,			July 28,				July 27,			July 28,
		2014			2013				2014			2013
		(In thousands)							(In thousands)
	Cost of revenue	$	2,656		$	2,168			$	5,575		$	4,821
	Research and development	21,462			18,555				41,956			40,490
	Sales, general and administrative	14,297			11,672				26,405			20,481
	Total	$	38,415		$	32,395			$	73,936		$	65,792
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award	'
		Three Months Ended				Six Months Ended
		July 27,		July 28,		July 27,			July 28,
		2014		2013		2014			2013
	Stock Options	(Using a binomial model)
	Expected life (in years)	2.5		2.4 - 3.4		2.5 - 3.2			2.4 - 3.4
	Risk-free interest rate	2.5	%	1.8% - 2.7%		2.5% - 2.8%			1.8% - 2.7%
	Volatility	31	%	30% - 33%		31	%		30% - 37%
	Dividend yield	1.8	%	2.1% - 2.2%		1.8% - 1.9%			2.1% - 2.4%
		Three Months Ended					Six Months Ended
		July 27,		July 28,			July 27,			July 28,
		2014		2013			2014			2013
	Employee Stock Purchase Plan	(Using a Black-Scholes model)
	Expected life (in years)	—		—			0.5 - 2.0			0.5 - 2.0
	Risk-free interest rate	—		—			0.1% - 0.3%			0.1% - 0.3%
	Volatility	—	%	—	%		31	%		37	%
	Dividend yield	—	%	—	%		1.9	%		2.4	%
	Equity Award Activity
	The following summarizes the stock option, RSU and PSU activity under our equity incentive plans:
		Options Outstanding		Weighted Average Exercise Price
	Stock Options	(In thousands)		(Per share)
	Balances, January 26, 2014	32,504		$	14.22
	Granted	86		$	18.66
	Exercised	(6,291	)	$	12.89
	Cancelled	(942	)	$	18.89
	Balances, July 27, 2014	25,357		$	14.39
		RSUs and PSUs Outstanding		Weighted Average Grant-Date Fair Value
	RSUs and PSUs	(In thousands)		(Per share)
	Balances, January 26, 2014	18,852		$	13.82
	Granted (1)	3,729		$	17.2
	Vested	(3,319	)	$	13.33
	Cancelled	(793	)	$	13.98
	Balances, July 27, 2014	18,469		$	14.58
	(1) Includes the total number of PSUs issuable if the maximum corporate financial performance target level for fiscal year 2015 is achieved. Depending on the actual level of achievement of the corporate performance goal at the end of fiscal year 2015, the range of PSUs issued could range from 1.4 million to 2.5 million shares.

Net_Income_Per_Share_Tables

Net Income Per Share (Tables)	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Reconciliation of numerators and denominators of basic and diluted net income (loss) per share computations	'
		Three Months Ended				Six Months Ended
		July 27,		July 28,		July 27,		July 28,
		2014		2013		2014		2013
		(In thousands, except per share data)
	Numerator:
	Net income	$	127,976	$	96,448	$	264,492	$	174,339
	Denominator:
	Denominator for basic net income per share, weighted average shares	558,223		585,345		558,657		601,109
	Effect of dilutive securities:
	Equity awards outstanding	12,349		6,661		11,942		4,942
	Denominator for diluted net income per share, weighted average shares	570,572		592,006		570,599		606,051
	Net income per share:
	Basic net income per share	$	0.23	$	0.16	$	0.47	$	0.29
	Diluted net income per share	$	0.22	$	0.16	$	0.46	$	0.29
	Potentially dilutive securities excluded from diluted net income per share because their effect would have been anti-dilutive	3,987		17,749		7,928		27,039

Marketable_Securities_Tables

Marketable Securities (Tables)	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Cash Equivalents and Marketable Securities	'
		July 27, 2014
		Amortized		Unrealized			Unrealized			Estimated
		Cost		Gain			Loss			Fair Value
		(In thousands)
	Corporate debt securities	$	2,042,721	$	2,139		$	(1,430	)	$	2,043,430
	Debt securities of United States government agencies	700,025		352			(216		)	700,161
	Debt securities issued by United States Treasury	586,484		896			(69		)	587,311
	Asset-backed securities	411,669		169			(310		)	411,528
	Mortgage-backed securities issued by United States government-sponsored enterprises	258,483		4,279			(1,340		)	261,422
	Money market funds	119,491		—			—			119,491
	Total	$	4,118,873	$	7,835		$	(3,365	)	$	4,123,343
	Classified as:
	Cash equivalents									$	252,381
	Marketable securities									3,870,962
	Total									$	4,123,343
		January 26, 2014
		Amortized		Unrealized			Unrealized			Estimated
		Cost		Gain			Loss			Fair Value
		(In thousands)
	Corporate debt securities	$	1,827,788	$	1,857		$	(1,065	)	$	1,828,580
	Debt securities of United States government agencies	1,012,740		848			(261		)	1,013,327
	Debt securities issued by United States Treasury	495,889		621			(57		)	496,453
	Money market funds	307,865		—			—			307,865
	Asset-backed securities	258,017		15			(315		)	257,717
	Mortgage-backed securities issued by United States government-sponsored enterprises	185,594		3,837			(725		)	188,706
	Total	$	4,087,893	$	7,178		$	(2,423	)	$	4,092,648
	Classified as:
	Cash equivalents									$	572,425
	Marketable securities									3,520,223
	Total									$	4,092,648
Schedule of Unrealized Loss on Investments [Table Text Block]	'
		Less than 12 months					12 months or greater						Total
		Fair Value		Gross			Fair Value			Gross			Fair Value		Gross
				Unrealized						Unrealized					Unrealized
				Losses						Losses					Losses
		(In thousands)
	Corporate debt securities	$	664,945	$	(90	)	$	1,378,485		$	(1,340	)	$	2,043,430	$	(1,430	)
	Debt securities of United States government agencies	304,481		(3		)	395,680			(213		)	700,161		(216		)
	Debt securities issued by United States Treasury	45,045		(28		)	542,266			(41		)	587,311		(69		)
	Asset-backed securities	162,899		(14		)	248,629			(296		)	411,528		(310		)
	Mortgage-backed securities issued by United States government-sponsored enterprises	—		—			261,422			(1,340		)	261,422		(1,340		)
	Total	$	1,177,370	$	(135	)	$	2,826,482		$	(3,230	)	$	4,003,852	$	(3,365	)
Schedule of Cash Equivalents and Marketable Securities Available for Sale	'
		July 27, 2014					January 26, 2014
		Amortized		Estimated			Amortized			Estimated
		Cost		Fair Value			Cost			Fair Value
		(In thousands)
	Less than 1 year	$	1,296,254	$	1,296,861		$	1,883,132		$	1,883,753
	Due in 1 - 5 years	2,665,096		2,667,222			2,114,289			2,117,387
	Mortgage-backed securities issued by government-sponsored enterprises not due at a single maturity date	157,523		159,260			90,472			91,508
	Total	$	4,118,873	$	4,123,343		$	4,087,893		$	4,092,648

Fair_Value_of_Financial_Assets1

Fair Value of Financial Assets and Liabilities (Tables)	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Financial assets measured at Fair Value	'
				Fair Value Measurement as of July 27, 2014 Using
				Quoted Prices		Significant Other Observable Inputs
				in Active Markets for Identical Assets
		July 27, 2014		(Level 1)		(Level 2)
		(In thousands)
	Corporate debt securities (1)	$	2,043,430	$	—	$	2,043,430
	Debt securities issued by United States government agencies (2)	700,161		—		700,161
	Debt securities issued by United States Treasury (3)	587,311		—		587,311
	Asset-backed securities (3)	411,528		—		411,528
	Mortgage-backed securities issued by government-sponsored enterprises (3)	261,422		—		261,422
	Money market funds (4)	119,491		119,491		—
	Total cash equivalents and marketable securities	$	4,123,343	$	119,491	$	4,003,852
	-1	Includes $96.2 million in cash equivalents and $1.95 billion in marketable securities on the Condensed Consolidated Balance Sheet.
	-2	Includes $36.7 million in cash equivalents and $663.5 million in marketable securities on the Condensed Consolidated Balance Sheet.
	(3)	Included in marketable securities on the Condensed Consolidated Balance Sheet.
	-4	Included in cash equivalents on the Condensed Consolidated Balance Sheet

3dfx_Tables

3dfx (Tables)	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Purchase Price Allocation of Assets Acquired from 3dfx	'
		Fair Market Value		Straight-Line Amortization Period
		(In thousands)		(In years)
	Property and equipment	$	2,433	2-Jan
	Trademarks	11,310		5
	Goodwill	85,418		—
	Total	$	99,161

Intangible_Assets_Tables

Intangible Assets (Tables)	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Amortizable Intangible Assets Components	'
		July 27, 2014							January 26, 2014
		Gross		Accumulated			Net Carrying		Gross		Accumulated Amortization			Net Carrying
		Carrying		Amortization			Amount		Carrying					Amount
		Amount							Amount
		(In thousands)
	Acquisition-related intangible assets	$	189,239	$	(124,083	)	$	65,156	$	189,239	$	(114,104	)	$	75,135
	Patents and licensed technology	449,204		(253,747		)	195,457		446,196		(225,319		)	220,877
	Total intangible assets	$	638,443	$	(377,830	)	$	260,613	$	635,435	$	(339,423	)	$	296,012

Balance_Sheet_Components_Table

Balance Sheet Components (Tables)	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Inventories	'
		July 27,		January 26,
		2014		2014
	Inventories:	(In thousands)
	Raw materials	$	126,191	$	126,896
	Work in-process	85,895		94,844
	Finished goods	175,348		166,025
	Total inventories	$	387,434	$	387,765
Accrued Liabilities	'
		July 27,		January 26,
		2014		2014
	Accrued Liabilities and Other:	(In thousands)
	Deferred revenue, short-term	$	265,704	$	265,616
	Accrued customer programs (1)	131,973		157,840
	Accrued payroll and related expenses	112,024		109,721
	Accrued legal settlement (2)	30,600		30,600
	Professional service fees	12,218		13,572
	Customer advances	11,329		9,297
	Office lease related liabilities	8,549		3,139
	Warranty accrual (3)	8,202		7,571
	Taxes payable, short-term	5,810		2,378
	Coupon interest on Notes	2,542		2,500
	Other	18,151		18,871
	Total accrued liabilities and other	$	607,102	$	621,105
	(1) Please refer to Note 1 of the Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the fiscal year ended January 26, 2014, for discussion regarding the nature of accrued customer programs and their accounting treatment related to our revenue recognition policies and estimates.
	(2)  Please refer to Note 12 of these Notes to Condensed Consolidated Financial Statements for discussion regarding the 3dfx litigation.
	(3)  Please refer to Note 10 of these Notes to Condensed Consolidated Financial Statements for discussion regarding the warranty accrual.
Other Long-term Liabilities	'
		July 27,		January 26,
		2014		2014
	Other Long-Term Liabilities:	(In thousands)
	Deferred income tax liability	$	192,702	$	157,953
	Income taxes payable, long-term	119,661		119,977
	Deferred revenue, long-term (1)	40,063		172,199
	Asset retirement obligation	7,386		11,056
	Other long-term liabilities	14,301		13,940
	Total other long-term liabilities	$	374,113	$	475,125
	(1) Consists primarily of annual consideration received in advance of our performance obligation under our patent cross licensing agreement with Intel Corporation entered into in January 2011. The decrease in deferred revenue, long-term, is a result of revenue recognized during the six months ended July 27, 2014.

Guarantees_Tables

Guarantees (Tables)	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Guarantees	'
		Three Months Ended						Six Months Ended
		July 27,			July 28,			July 27,			July 28,
		2014			2013			2014			2013
		(In thousands)
	Balance at beginning of period	$	8,250		$	14,833		$	7,571		$	14,874
	Additions	1,155			3,482			3,189			4,900
	Deductions	(1,203		)	(841		)	(2,558		)	(2,300		)
	Balance at end of period	$	8,202		$	17,474		$	8,202		$	17,474

Longterm_debt_Tables

Long-term debt (Tables)	6 Months Ended
	Jul. 27, 2014
Debt Disclosure [Abstract]	'
Schedule of Long-term Debt Instruments [Table Text Block]	'
		July 27,			January 26,
		2014			2014
		(In thousands)
	Amount of the equity component	$	125,725		$	125,725
	1.00% convertible senior notes due 2018	$	1,500,000		$	1,500,000
	Unamortized debt discount (1)	(129,751		)	(143,625		)
	Net carrying amount	$	1,370,249		$	1,356,375
	(1) As of July 27, 2014, the unamortized debt discount will be amortized over a remaining period of 4.4 years.
	The following table presents the interest expense for the contractual interest and the accretion of debt discount and issuance costs:
		Three Months Ended						Six Months Ended
		July 27,			July 28,			July 27,		July 28,
		2014			2013			2014		2013
		(In thousands)
	Contractual coupon interest expense	$	3,750		$	—		$	7,500	$	—
	Amortization of debt discount	6,973			—			13,874		—
	Amortization of debt issuance costs	49			—			97		—
	Total interest expense related to Notes	$	10,772		$	—		$	21,471	$	—

Segment_Information_Tables

Segment Information (Tables)	6 Months Ended
	Jul. 27, 2014
Notes to financial statements [Abstract]	'
Financial Information by Operating Segment	'
		GPU				Tegra Processor				All Other				Consolidated
		(In thousands)
	Three Months Ended July 27, 2014
	Revenue	$	877,980			$	158,844			$	66,000			$	1,102,824
	Depreciation and amortization expense	$	29,493			$	14,562			$	11,552			$	55,607
	Operating income (loss)	$	240,908			$	(54,542	)		$	(23,187	)		$	163,179
	Three Months Ended July 28, 2013
	Revenue	$	858,613			$	52,625			$	66,000			$	977,238
	Depreciation and amortization expense	$	36,001			$	15,431			$	10,408			$	61,840
	Operating income (loss)	$	207,914			$	(83,560	)		$	(18,820	)		$	105,534
	Six Months Ended July 27, 2014
	Revenue	$	1,775,343			$	298,268			$	132,000			$	2,205,611
	Depreciation and amortization expense	$	59,017			$	28,730			$	22,943			$	110,690
	Operating income (loss)	$	476,104			$	(115,981	)		$	(45,585	)		$	314,538
	Six Months Ended July 28, 2013
	Revenue	$	1,644,225			$	155,752			$	132,000			$	1,931,977
	Depreciation and amortization expense	$	71,919			$	28,953			$	20,712			$	121,584
	Operating income (loss)	$	366,440			$	(138,550	)		$	(39,575	)		$	188,315
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table Text Block]	'
		Three Months Ended							Six Months Ended
		July 27,				July 28,			July 27,				July 28,
		2014				2013			2014				2013
		(In thousands)
	Reconciling items included in "All Other" category :
	Revenue not allocated to reporting segments	$	66,000			$	66,000		$	132,000			$	132,000
	Unallocated corporate operating expenses	(41,599		)		(41,171		)	(85,035		)		(85,668		)
	Stock-based compensation	(38,415		)		(32,395		)	(73,936		)		(65,792		)
	Acquisition-related costs	(9,173		)		(8,964		)	(18,614		)		(17,825		)
	Other non-recurring expenses	—				(2,290		)	—				(2,290		)
	Total	$	(23,187	)		$	(18,820	)	$	(45,585	)		$	(39,575	)
Revenue from customers based in different geographic regions	'
		Three Months Ended								Six Months Ended
		July 27,				July 28,				July 27,				July 28,
		2014				2013				2014				2013
		(In thousands)
	Revenue:
	Taiwan	$	330,917			$	319,004			$	703,776			$	608,885
	China	251,768				184,086				475,230				359,130
	United States	206,128				163,796				379,063				349,774
	Other Asia Pacific	150,799				165,117				305,649				332,374
	Other Americas	83,055				76,531				174,818				141,538
	Europe	80,157				68,704				167,075				140,276
	Total revenue	$	1,102,824			$	977,238			$	2,205,611			$	1,931,977
Revenue from significant customers,10% or more of total revenue [Table Text Block]	'
	Revenue from significant customers, those representing 10% or more of total revenue for the respective dates, is summarized as follows:
		Three Months Ended						Six Months Ended
		July 27,			July 28,			July 27,			July 28,
		2014			2013			2014			2013
	Revenue:
	Customer A	11	%		11	%		10	%		11	%
	Customer B	10	%		12	%		9	%		11	%
	Revenue from Customer A was attributable primarily to the GPU business for the three and six months ended July 27, 2014 and to both the GPU and Tegra Processor businesses for the three and six months ended July 28, 2013. Revenue from Customer B was attributable to the GPU business for all comparative periods presented.
Accounts receivable from significant customers, 10% or more of total A/R [Table Text Block]	'
	Accounts receivable from significant customers, those representing 10% or more of total accounts receivable for the respective periods, is summarized as follows:
		July 27,			January 26,
		2014			2014
	Accounts Receivable:
	Customer B	21	%		23	%
	Customer C	10	%		9	%

Stock_Based_Compensation_Detai

Stock Based Compensation (Details) (USD $)	3 Months Ended		6 Months Ended			12 Months Ended
	Jul. 27, 2014	Jul. 28, 2013	Jul. 27, 2014		Jul. 28, 2013	Jan. 26, 2014
Share-based Compensation	'	'	'		'	'
Cost of revenue	$2,656,000	$2,168,000	$5,575,000		$4,821,000	'
Research and development	21,462,000	18,555,000	41,956,000		40,490,000	'
Sales, general and administrative	14,297,000	11,672,000	26,405,000		20,481,000	'
Stock based compensation expense	38,415,000	32,395,000	73,936,000		65,792,000	'
Stock Options granted (in shares)	78,129	500,000	85,929		3,300,000	'
Weighted average grant-date fair value per option	$3.96	$2.96	$4.02		$3.09	'
RSUs and PSUs granted (in shares)	500,000	700,000	3,729,000	[1]	5,600,000	'
Weighted average grant-date fair value of RSUs and PSUs	$17.68	$13.49	$17.20		$11.93	'
Stock-based compensation expense related to equity awards not expected to vest	1,600,000	1,800,000	11,500,000		13,700,000	'
Aggregate amount of unearned stock-based compensation expense related to equity awards, adjusted for estimated forfeitures	235,600,000	'	235,600,000		'	241,300,000
Unearned stock-based compensation expense related to stock options weighted average amortization period (in years)	'2 years 2 months 12 days	'	'		'	'2 years 6 months 0 days
Unearned stock-based compensation expense related to RSUs/PSUs weighted average amortization period (in years)	'2 years 7 months 6 days	'	'		'	'2 years 8 months 12 days
Stock Options	'	'	'		'	'
Stock options beginning balance (in shares)	'	'	32,504,000		'	'
Stock Options granted (in shares)	78,129	500,000	85,929		3,300,000	'
Stock options exercised (in shares)	'	'	-6,291,000		'	'
Stock options cancelled (in shares)	'	'	-942,000		'	'
Stock options ending balance (in shares)	25,357,000	'	25,357,000		'	32,504,000
Weighted average exercise price of stock options at beginning of period	'	'	$14.22		'	'
Weighted average exercise price of stock options granted	'	'	$18.66		'	'
Weighted average exercise price of stock options exercised	'	'	$12.89		'	'
Weighted average exercise price of stock options cancelled	'	'	$18.89		'	'
Weighted average exercise price of stock options at end of period	$14.39	'	$14.39		'	$14.22
RSUs/PSUs	'	'	'		'	'
RSUs/PSUs beginning balance (in shares)	'	'	18,852,000		'	'
RSUs and PSUs granted (in shares)	500,000	700,000	3,729,000	[1]	5,600,000	'
RSUs/PSUs vested (in shares)	'	'	-3,319,000		'	'
RSUs/PSUs cancelled (in shares)	'	'	-793,000		'	'
RSUs/PSUs ending balance (in shares)	18,469,000	'	18,469,000		'	18,852,000
Weighted average grant date fair value of RSUs/PSUs at beginning of period	'	'	$13.82		'	'
Weighted average grant-date fair value of RSUs and PSUs	$17.68	$13.49	$17.20		$11.93	'
Weighted average grant-date fair value of RSUs/PSUs vested	'	'	$13.33		'	'
Weighted average grant date fair value of RSUs/PSUs cancelled	'	'	$13.98		'	'
Weighted average grant date fair value of RSUs/PSUs at end of period	$14.58	'	$14.58		'	$13.82
Maximum number of PSUs issuable	2,500,000	'	2,500,000		'	'
Minimum number of PSUs issuable	1,400,000	'	1,400,000		'	'
Minimum	'	'	'		'	'
Share-based Compensation	'	'	'		'	'
Weighted average expected life (in years)	'2 years 6 months 0 days	'2 years 4 months 24 days	'2 years 6 months 0 days		'2 years 4 months 24 days	'
Maximum	'	'	'		'	'
Share-based Compensation	'	'	'		'	'
Weighted average expected life (in years)	'2 years 6 months 0 days	'3 years 4 months 24 days	'3 years 2 months 12 days		'3 years 4 months 24 days	'
Stock Options	'	'	'		'	'
Share-based Compensation	'	'	'		'	'
Estimated grant-date fair value	309,400	1,400,000	345,300		10,100,000	'
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Method Used	'(Using a binomial model)	'(Using a binomial model)	'(Using a binomial model)		'(Using a binomial model)	'
Risk free interest rate, minimum (in hundredths)	2.50%	1.80%	2.50%		1.80%	'
Risk free interest rate, maximum (in hundredths)	2.50%	2.70%	2.80%		2.70%	'
Volatility rate, minimum (in hundredths)	31.00%	30.00%	31.00%		30.00%	'
Volatility rate, maximum (in hundredths)	31.00%	33.00%	31.00%		37.00%	'
Dividend yield minimum	1.80%	2.10%	1.80%		2.10%	'
Dividend yield maximum	1.80%	2.20%	1.90%		2.40%	'
RSUs and PSUs	'	'	'		'	'
Share-based Compensation	'	'	'		'	'
Estimated grant-date fair value	$8,400,000	$8,900,000	$64,100,000		$66,300,000	'
Employee Stock Purchase Plan	'	'	'		'	'
Share-based Compensation	'	'	'		'	'
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Method Used	'(Using a Black-Scholes model)	'(Using a Black-Scholes model)	'(Using a Black-Scholes model)		'(Using a Black-Scholes model)	'
Risk free interest rate, minimum (in hundredths)	0.00%	0.00%	0.10%		0.10%	'
Risk free interest rate, maximum (in hundredths)	0.00%	0.00%	0.30%		0.30%	'
Volatility rate, minimum (in hundredths)	0.00%	0.00%	31.00%		37.00%	'
Volatility rate, maximum (in hundredths)	0.00%	0.00%	31.00%		37.00%	'
Dividend yield minimum	0.00%	0.00%	1.90%		2.40%	'
Dividend yield maximum	0.00%	0.00%	1.90%		2.40%	'
Employee Stock Purchase Plan | Minimum	'	'	'		'	'
Share-based Compensation	'	'	'		'	'
Weighted average expected life (in years)	'0 years 0 months 0 days	'0 years 0 months 0 days	'0 years 6 months 0 days		'0 years 6 months 0 days	'
Employee Stock Purchase Plan | Maximum	'	'	'		'	'
Share-based Compensation	'	'	'		'	'
Weighted average expected life (in years)	'0 years 0 months 0 days	'0 years 0 months 0 days	'2 years 0 months 0 days		'2 years 0 months 0 days	'
[1]	Includes the total number of PSUs issuable if the maximum corporate financial performance target level for fiscal year 2015 is achieved. Depending on the actual level of achievement of the corporate performance goal at the end of fiscal year 2015, the range of PSUs issued could range from 1.4 million to 2.5 million shares.

Net_Income_Per_Share_Details

Net Income Per Share (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jul. 27, 2014	Jul. 28, 2013	Jul. 27, 2014	Jul. 28, 2013
Numerator:	'	'	'	'
Net income	$127,976	$96,448	$264,492	$174,339
Denominator:	'	'	'	'
Denominator for basic net income per share, weighted average shares	558,223	585,345	558,657	601,109
Effect of dilutive securities:	'	'	'	'
Equity awards outstanding	12,349	6,661	11,942	4,942
Denominator for diluted net income per share, weighted average shares	570,572	592,006	570,599	606,051
Net income per share:	'	'	'	'
Basic net income per share	$0.23	$0.16	$0.47	$0.29
Diluted net income per share	$0.22	$0.16	$0.46	$0.29
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	3,987	17,749	7,928	27,039
Debt Instrument, Interest Rate, Stated Percentage	1.00%	'	1.00%	'
Debt Instrument, Convertible, Conversion Price	$20.16	'	$20.16	'
Warrant Strike Price	'	'	$27.14	'

Income_Taxes_Details

Income Taxes (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jul. 27, 2014	Jul. 28, 2013	Jul. 27, 2014	Jul. 28, 2013
Income Taxes	'	'	'	'
Income tax expense	$26,649	$15,372	$53,415	$25,543
Effective Income Tax Rate, Continuing Operations	17.20%	13.80%	16.80%	12.80%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	'	'	35.00%	'
Annual projected effective tax rate as of the first three months of fiscal year 2015	'	'	19.10%	'

Marketable_Securities_Details

Marketable Securities (Details) (USD $)	3 Months Ended	6 Months Ended		12 Months Ended
	Jul. 28, 2013	Jul. 27, 2014	Jul. 28, 2013	Jan. 26, 2014
Summary of cash equivalents and marketable securities:	'	'	'	'
Realized Investment Gains (Losses)	$1,600,000	'	$1,700,000	'
Available-for-sale Securities, Amortized Cost Basis	'	4,118,873,000	'	4,087,893,000
Unrealized Gain	'	7,835,000	'	7,178,000
Unrealized Loss	'	-3,365,000	'	-2,423,000
Estimated Fair Value	'	4,123,343,000	'	4,092,648,000
Classified as:	'	'	'	'
Cash equivalents	'	252,381,000	'	572,425,000
Marketable securities	'	3,870,962,000	'	3,520,223,000
Total cash equivalents and marketable securities	'	4,123,343,000	'	4,092,648,000
Amortized Cost	'	'	'	'
Less than one year	'	1,296,254,000	'	1,883,132,000
Due in 1-5 years	'	2,665,096,000	'	2,114,289,000
Mortgage-backed securities issued by government-sponsored enterprises not due to a single maturity date	'	157,523,000	'	90,472,000
Total	'	4,118,873,000	'	4,087,893,000
Estimated Fair Value	'	'	'	'
Less than one year	'	1,296,861,000	'	1,883,753,000
Due in 1-5 years	'	2,667,222,000	'	2,117,387,000
Mortgage-backed securities issued by government-sponsored enterprises not due to a single maturity date	'	159,260,000	'	91,508,000
Total	'	4,123,343,000	'	4,092,648,000
Unrealized Loss Position, Fair Value	'	'	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	'	1,177,370,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	'	2,826,482,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	'	4,003,852,000	'	'
Unrealized Loss Position, Aggregate Losses	'	'	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	'	-135,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	'	-3,230,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	'	-3,365,000	'	'
Corporate debt securities	'	'	'	'
Summary of cash equivalents and marketable securities:	'	'	'	'
Available-for-sale Securities, Amortized Cost Basis	'	2,042,721,000	'	1,827,788,000
Unrealized Gain	'	2,139,000	'	1,857,000
Unrealized Loss	'	-1,430,000	'	-1,065,000
Estimated Fair Value	'	2,043,430,000	'	1,828,580,000
Classified as:	'	'	'	'
Total cash equivalents and marketable securities	'	2,043,430,000	'	1,828,580,000
Unrealized Loss Position, Fair Value	'	'	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	'	664,945,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	'	1,378,485,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	'	2,043,430,000	'	'
Unrealized Loss Position, Aggregate Losses	'	'	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	'	-90,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	'	-1,340,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	'	-1,430,000	'	'
Debt securities of United States government agencies	'	'	'	'
Summary of cash equivalents and marketable securities:	'	'	'	'
Available-for-sale Securities, Amortized Cost Basis	'	700,025,000	'	1,012,740,000
Unrealized Gain	'	352,000	'	848,000
Unrealized Loss	'	-216,000	'	-261,000
Estimated Fair Value	'	700,161,000	'	1,013,327,000
Classified as:	'	'	'	'
Total cash equivalents and marketable securities	'	700,161,000	'	1,013,327,000
Unrealized Loss Position, Fair Value	'	'	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	'	304,481,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	'	395,680,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	'	700,161,000	'	'
Unrealized Loss Position, Aggregate Losses	'	'	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	'	-3,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	'	-213,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	'	-216,000	'	'
Debt securities issued by United States Treasury	'	'	'	'
Summary of cash equivalents and marketable securities:	'	'	'	'
Available-for-sale Securities, Amortized Cost Basis	'	586,484,000	'	495,889,000
Unrealized Gain	'	896,000	'	621,000
Unrealized Loss	'	-69,000	'	-57,000
Estimated Fair Value	'	587,311,000	'	496,453,000
Classified as:	'	'	'	'
Total cash equivalents and marketable securities	'	587,311,000	'	496,453,000
Unrealized Loss Position, Fair Value	'	'	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	'	45,045,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	'	542,266,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	'	587,311,000	'	'
Unrealized Loss Position, Aggregate Losses	'	'	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	'	-28,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	'	-41,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	'	-69,000	'	'
Asset-backed Securities	'	'	'	'
Summary of cash equivalents and marketable securities:	'	'	'	'
Available-for-sale Securities, Amortized Cost Basis	'	411,669,000	'	258,017,000
Unrealized Gain	'	169,000	'	15,000
Unrealized Loss	'	-310,000	'	-315,000
Estimated Fair Value	'	411,528,000	'	257,717,000
Classified as:	'	'	'	'
Total cash equivalents and marketable securities	'	411,528,000	'	257,717,000
Unrealized Loss Position, Fair Value	'	'	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	'	162,899,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	'	248,629,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	'	411,528,000	'	'
Unrealized Loss Position, Aggregate Losses	'	'	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	'	-14,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	'	-296,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	'	-310,000	'	'
Mortgage backed securities issued by United Sates government-sponsored enterprises	'	'	'	'
Summary of cash equivalents and marketable securities:	'	'	'	'
Available-for-sale Securities, Amortized Cost Basis	'	258,483,000	'	185,594,000
Unrealized Gain	'	4,279,000	'	3,837,000
Unrealized Loss	'	-1,340,000	'	-725,000
Estimated Fair Value	'	261,422,000	'	188,706,000
Classified as:	'	'	'	'
Total cash equivalents and marketable securities	'	261,422,000	'	188,706,000
Unrealized Loss Position, Fair Value	'	'	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	'	0	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	'	261,422,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	'	261,422,000	'	'
Unrealized Loss Position, Aggregate Losses	'	'	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	'	0	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	'	-1,340,000	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	'	-1,340,000	'	'
Money market funds	'	'	'	'
Summary of cash equivalents and marketable securities:	'	'	'	'
Available-for-sale Securities, Amortized Cost Basis	'	119,491,000	'	307,865,000
Unrealized Gain	'	0	'	0
Unrealized Loss	'	0	'	0
Estimated Fair Value	'	119,491,000	'	307,865,000
Classified as:	'	'	'	'
Total cash equivalents and marketable securities	'	$119,491,000	'	$307,865,000

Fair_Value_of_Financial_Assets2

Fair Value of Financial Assets and Liabilities (Details) (USD $)	Jul. 27, 2014		Jan. 26, 2014
Financial assets and liabilities measured at fair value:	'		'
Estimated Fair Value	$4,123,343,000		$4,092,648,000
Cash equivalents of corporate debt securities	96,200,000		'
Marketable securities of corporate debt securities	1,950,000,000		'
Cash equivalents of US Govt Agencies Debt Securities	36,700,000		'
Marketable Securities of US Govt Agencies Debt Securities	663,500,000		'
Debt Instrument, Face Amount	1,500,000,000		1,500,000,000
Convertible Debt, Fair Value Disclosures	1,630,000,000		1,530,000,000
Estimate of Fair Value	'		'
Financial assets and liabilities measured at fair value:	'		'
Total cash equivalents and marketable securities	4,123,343,000		'
Quoted Price in Active Markets for Identical Assets (Level 1)	'		'
Financial assets and liabilities measured at fair value:	'		'
Money market funds	119,491,000	[1]	'
Total cash equivalents and marketable securities	119,491,000		'
Significant Other Observable Inputs (Level 2)	'		'
Financial assets and liabilities measured at fair value:	'		'
Corporate debt securities	2,043,430,000	[2]	'
Debt securities issued by US Government agencies	700,161,000	[3]	'
Debt securities issued by United States Treasury	587,311,000	[4]	'
Asset backed securities	411,528,000	[3]	'
Mortgage-backed securitieis issued by Government-sponsored entities	261,422,000	[4]	'
Money market funds	0		'
Total cash equivalents and marketable securities	4,003,852,000		'
Corporate Debt Securities [Member]	'		'
Financial assets and liabilities measured at fair value:	'		'
Estimated Fair Value	2,043,430,000		1,828,580,000
US Government Agencies Debt Securities [Member]	'		'
Financial assets and liabilities measured at fair value:	'		'
Estimated Fair Value	700,161,000		1,013,327,000
US Treasury Securities [Member]	'		'
Financial assets and liabilities measured at fair value:	'		'
Estimated Fair Value	587,311,000		496,453,000
Asset-backed Securities	'		'
Financial assets and liabilities measured at fair value:	'		'
Estimated Fair Value	411,528,000		257,717,000
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]	'		'
Financial assets and liabilities measured at fair value:	'		'
Estimated Fair Value	261,422,000		188,706,000
Money Market Funds [Member]	'		'
Financial assets and liabilities measured at fair value:	'		'
Estimated Fair Value	$119,491,000		$307,865,000
[1]	Included in cash equivalents on the Condensed Consolidated Balance Sheet.
[2]	Includes $96.2 million in cash equivalents and $1.95 billion in marketable securities on the Condensed Consolidated Balance Sheet.
[3]	Includes $36.7 million in cash equivalents and $663.5 million in marketable securities on the Condensed Consolidated Balance Sheet.
[4]	Included in marketable securities on the Condensed ConsolidatedB Balance Sheet.

3dfx_Details

3dfx (Details) (USD $)	6 Months Ended
	Jul. 27, 2014		Jan. 26, 2014
Notes to financial statements [Abstract]	'		'
Aggregate purchase price of acquisition paid initially	$74,200,000		'
Accrued legal settlement	30,600,000	[1]	30,600,000	[1]
Various administrative expenses and Trustee fees included in conditional settlement payment	5,600,000		'
Conditional settlement assessed to satisfy debts and liabilities owed to the general unsecured creditors of 3dfx	25,000,000		'
Aggregate purchase price of acquisition assessed after conditional settlement	95,000,000		'
Direct transaction costs for acquisition	4,200,000		'
Fair Market Value	'		'
Property and equipment	2,433,000		'
Trademarks	11,310,000		'
Goodwill	85,418,000		'
Total	$99,161,000		'
Straight-Line Amortization Period	'		'
Property and equipment	'1-2		'
Trademarks	'5 years 0 months 0 days		'
[1]	Please refer to Note 12 of these Notes to Condensed Consolidated Financial Statements for discussion regarding the 3dfx litigation.

Intangible_Assets_Details

Intangible Assets (Details) (USD $)	3 Months Ended		6 Months Ended
	Jul. 27, 2014	Jul. 28, 2013	Jul. 27, 2014	Jul. 28, 2013	Jul. 27, 2014	Jan. 26, 2014	Jul. 27, 2014	Jan. 26, 2014	Jul. 27, 2014	Jan. 26, 2014
					Acquisition-related intangible assets	Acquisition-related intangible assets	Patents and Licensed Technology	Patents and Licensed Technology	Total intangible assets	Total intangible assets
Amortizable intangible assets components	'	'	'	'	'	'	'	'	'	'
Gross Carrying Amount	'	'	'	'	$189,239,000	$189,239,000	$449,204,000	$446,196,000	$638,443,000	$635,435,000
Accumulated Amortization	'	'	'	'	-124,083,000	-114,104,000	-253,747,000	-225,319,000	-377,830,000	-339,423,000
Net Carrying Amount	'	'	'	'	65,156,000	75,135,000	195,457,000	220,877,000	260,613,000	296,012,000
Future amortization expense associated with intangible assets	'	'	'	'	'	'	'	'	'	'
Remainder of fiscal 2015	40,000,000	'	40,000,000	'	'	'	'	'	'	'
Fiscal 2016	71,900,000	'	71,900,000	'	'	'	'	'	'	'
Fiscal 2017	63,700,000	'	63,700,000	'	'	'	'	'	'	'
Fiscal 2018	49,000,000	'	49,000,000	'	'	'	'	'	'	'
Fiscal 2019	20,400,000	'	20,400,000	'	'	'	'	'	'	'
Fiscal 2020 and beyond	15,600,000	'	15,600,000	'	'	'	'	'	'	'
Amortization expense	$19,300,000	$18,600,000	$38,400,000	$36,000,000	'	'	'	'	'	'

Balance_Sheet_Components_Detai

Balance Sheet Components (Details) (USD $)	Jul. 27, 2014		Jan. 26, 2014
Inventories	'		'
Raw materials	$126,191,000		$126,896,000
Work in-process	85,895,000		94,844,000
Finished goods	175,348,000		166,025,000
Total inventories	387,434,000		387,765,000
Outstanding Inventory Purchase Obligations	486,300,000		'
Accrued Liabilities	'		'
Deferred revenue, short-term	265,704,000		265,616,000
Accrued customer programs	131,973,000	[1]	157,840,000	[1]
Accrued payroll and related expenses	112,024,000		109,721,000
Accrued legal settlement	30,600,000	[2]	30,600,000	[2]
Professional service fees	12,218,000		13,572,000
Customer advances	11,329,000		9,297,000
Warranty accrual	8,202,000	[3]	7,571,000	[3]
Office lease related liabilities	8,549,000		3,139,000
Coupon interest on Notes	2,542,000		2,500,000
Taxes payable, short-term	5,810,000		2,378,000
Other	18,151,000		18,871,000
Total accrued liabilities and other	607,102,000		621,105,000
Other Long-term Liabilities	'		'
Deferred income tax liability	192,702,000		157,953,000
Income taxes payable, long-term	119,661,000		119,977,000
Deferred Revenue, long-term	40,063,000	[4]	172,199,000
Asset retirement obligation	7,386,000		11,056,000
Other long-term liabilities	14,301,000		13,940,000
Total other long-term liabilities	$374,113,000		$475,125,000
[1]	Please refer to Note 1 of the Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the fiscal year ended January 26, 2014, for discussion regarding the nature of accrued customer programs and their accounting treatment related to our revenue recognition policies and estimates.
[2]	Please refer to Note 12 of these Notes to Condensed Consolidated Financial Statements for discussion regarding the 3dfx litigation.
[3]	Please refer to Note 10 of these Notes to Condensed Consolidated Financial Statements for discussion regarding the warranty accrual.
[4]	Consists primarily of annual consideration received in advance of our performance obligation under our patent cross licensing agreement with Intel Corporation entered into in January 2011. The decrease in deferred revenue, long-term, is a result of revenue recognized during the six months ended July 27, 2014.

Guarantees_Details

Guarantees (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jul. 27, 2014	Jul. 28, 2013	Jul. 27, 2014	Jul. 28, 2013
Estimated product warranty liabilities	'	'	'	'
Balance at beginning of period	$8,250	$14,833	$7,571	$14,874
Additions	1,155	3,482	3,189	4,900
Deductions	-1,203	-841	-2,558	-2,300
Balance at end of period	$8,202	$17,474	$8,202	$17,474

Longterm_debt_Details

Long-term debt (Details) (USD $)	3 Months Ended			6 Months Ended			12 Months Ended
	Jul. 27, 2014		Jul. 28, 2013	Jul. 27, 2014		Jul. 28, 2013	Jan. 26, 2014
Debt Instrument [Line Items]	'		'	'		'	'
Debt Instrument, Face Amount	$1,500,000,000		'	$1,500,000,000		'	$1,500,000,000
Debt Instrument, Interest Rate, Stated Percentage	1.00%		'	1.00%		'	'
Debt Instrument, Convertible, Conversion Ratio	'		'	49.6		'	'
Debt Instrument, Convertible, Conversion Price	$20.16		'	$20.16		'	'
Debt Instrument, Convertible, Terms of Conversion Feature	'		'	'(1) during any fiscal quarter commencing after the fiscal quarter ended on April 27, 2014 (and only during such fiscal quarter), if the last reported sale price of the common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding fiscal quarter is greater than or equal to 130% of the conversion price on each applicable trading day; (2) during the five business day period after any five consecutive trading day period (the measurement period) in which the trading price per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of our common stock and the conversion rate on each such trading day; or (3) upon the occurrence of specified corporate events. On or after August 1, 2018 to the close of business on the second scheduled trading day immediately preceding the maturity date, holders may convert all or any portion of their notes regardless of the foregoing conditions. Upon conversion, we will pay cash up to the aggregate principal amount of the notes to be converted and pay or deliver, as the case may be, cash, shares of our common stock or a combination of cash and shares of our common stock, at our election, in respect of the remainder, if any, of our conversion obligation in excess of the aggregate principal amount of the notes being converted.		'	'
Debt Instrument, Convertible, Initial Liability Amount	'		'	'		'	1,351,800,000
Debt Instrument, Effective Interest Rate	3.15%		'	3.15%		'	'
Debt Instrument, Convertible, Carrying Amount of Equity Component	125,725,000		'	125,725,000		'	125,725,000
Purchaser's Discount of Convertible Notes	'		'	22,500,000		'	'
Initial unamortized debt discount at issuance	'		'	148,200,000		'	'
Debt Instrument, Unamortized Discount	-129,751,000	[1]	'	-129,751,000	[1]	'	-143,625,000
Long-term Debt	1,370,249,000		'	1,370,249,000		'	1,356,375,000
Debt Instrument, Convertible, Remaining Discount Amortization Period	'		'	'4 years 4 months 24 days		'	'
Coupon Interest Expense	3,750,000		0	7,500,000		0	'
Amortization of Debt Discount	6,973,000		0	13,874,000		0	'
Amortization of Financing Costs	49,000		0	97,000		0	'
Debt Instrument, Convertible, Interest Expense	$10,772,000		$0	$21,471,000		$0	'
[1]	As of JulyB 27, 2014, the unamortized debt discount will be amortized over a remaining period of 4.4 years.

Commitments_and_Contingencies_

Commitments and Contingencies (Details) (USD $)	6 Months Ended
	Jul. 27, 2014		Jan. 26, 2014
Notes to financial statements [Abstract]	'		'
Aggregate purchase price of acquisition paid initially, net of direct costs	$70,000,000		'
Excess of assessed fair value over acquisition price paid	50,000,000		'
Accrued legal settlement	30,600,000	[1]	30,600,000	[1]
Various administrative expenses and Trustee fees included in conditional settlement payment	5,600,000		'
Conditional settlement assessed to satisfy debts and liabilities owed to the general unsecured creditors of 3dfx	$25,000,000		'
[1]	Please refer to Note 12 of these Notes to Condensed Consolidated Financial Statements for discussion regarding the 3dfx litigation.

Stockholders_Equity_Details

Stockholders' Equity (Details) (USD $)	3 Months Ended			6 Months Ended
	Jul. 27, 2014	Apr. 27, 2014	Jul. 28, 2013	Jul. 27, 2014	Jul. 28, 2013	Jan. 26, 2014
Accelerated Share Repurchases [Line Items]	'	'	'	'	'	'
Cost of shares repurchased under stock repurchase program	'	'	'	$2,950,000,000	'	'
Aggregate maximum amount of common stock to be repurchased	3,700,000,000	'	'	3,700,000,000	'	'
Stock repurchase program, additional authorized amount	'	'	'	1,000,000,000	'	'
Treasury Stock, Shares, Acquired	6,800,000	20,600,000	'	27,400,000	'	'
Treasury Stock Acquired, Average Cost Per Share	$18.23	'	'	'	'	'
Aggregate number of shares repurchased under stock repurchase program (in shares)	'	'	'	188,700,000	'	'
Stock Repurchase Program, Remaining Authorized Repurchase Amount	748,400,000	'	'	748,400,000	'	'
Intended return to shareholder in FY2015	'	'	'	'	'	1,000,000,000
Payments for Repurchase of Common Stock	'	500,000,000	'	500,000,000	850,000,000	'
Payments of Dividends	$47,400,000	'	'	$94,163,000	$89,610,000	'
Cash dividends declared and paid per common share	$0.09	'	$0.08	$0.17	$0.15	'
Cash dividend per share - annual	'	'	'	$0.34	'	'
Authorized number of shares of common stock (in shares)	2,000,000,000	'	'	2,000,000,000	'	'
Par value of common stock	$0.00	'	'	$0.00	'	'

Segment_Information_Details

Segment Information (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jul. 27, 2014	Jul. 28, 2013	Jul. 27, 2014	Jul. 28, 2013	Jan. 26, 2014
Revenue by Operating Segment and Geographic Region	'	'	'	'	'
Revenue	1,102,824	977,238	2,205,611	1,931,977	'
Depreciation and amortization expense	55,607	61,840	110,690	121,584	'
Operating income (loss)	163,179	105,534	314,538	188,315	'
Reconciling items included in All Other category	'	'	'	'	'
Unallocated corporate opex and other expenses	-41,599	-41,171	-85,035	-85,668	'
Stock based compensation expense	-38,415	-32,395	-73,936	-65,792	'
Acquisition related costs	-9,173	-8,964	-18,614	-17,825	'
Other Nonrecurring (Income) Expense	0	-2,290	0	-2,290	'
Taiwan [Member]	'	'	'	'	'
Revenue by Operating Segment and Geographic Region	'	'	'	'	'
Revenue	330,917	319,004	703,776	608,885	'
China [Member]	'	'	'	'	'
Revenue by Operating Segment and Geographic Region	'	'	'	'	'
Revenue	251,768	184,086	475,230	359,130	'
United States [Member]	'	'	'	'	'
Revenue by Operating Segment and Geographic Region	'	'	'	'	'
Revenue	206,128	163,796	379,063	349,774	'
Other Asia Pacific [Member]	'	'	'	'	'
Revenue by Operating Segment and Geographic Region	'	'	'	'	'
Revenue	150,799	165,117	305,649	332,374	'
Other Americas [Member]	'	'	'	'	'
Revenue by Operating Segment and Geographic Region	'	'	'	'	'
Revenue	83,055	76,531	174,818	141,538	'
Europe [Member]	'	'	'	'	'
Revenue by Operating Segment and Geographic Region	'	'	'	'	'
Revenue	80,157	68,704	167,075	140,276	'
Customer A [Member]	'	'	'	'	'
Revenue by Operating Segment and Geographic Region	'	'	'	'	'
Revenue from significant customers (in percent)	11.00%	11.00%	10.00%	11.00%	'
Customer B [Member]	'	'	'	'	'
Revenue by Operating Segment and Geographic Region	'	'	'	'	'
Revenue from significant customers (in percent)	10.00%	12.00%	9.00%	11.00%	'
Accounts receivable from significant customers (in percent)	21.00%	'	21.00%	'	23.00%
Customer C [Member]	'	'	'	'	'
Revenue by Operating Segment and Geographic Region	'	'	'	'	'
Accounts receivable from significant customers (in percent)	10.00%	'	10.00%	'	9.00%
GPU	'	'	'	'	'
Revenue by Operating Segment and Geographic Region	'	'	'	'	'
Revenue	877,980	858,613	1,775,343	1,644,225	'
Depreciation and amortization expense	29,493	36,001	59,017	71,919	'
Operating income (loss)	240,908	207,914	476,104	366,440	'
Tegra Processor	'	'	'	'	'
Revenue by Operating Segment and Geographic Region	'	'	'	'	'
Revenue	158,844	52,625	298,268	155,752	'
Depreciation and amortization expense	14,562	15,431	28,730	28,953	'
Operating income (loss)	-54,542	-83,560	-115,981	-138,550	'
All Other	'	'	'	'	'
Revenue by Operating Segment and Geographic Region	'	'	'	'	'
Revenue	66,000	66,000	132,000	132,000	'
Depreciation and amortization expense	11,552	10,408	22,943	20,712	'
Operating income (loss)	-23,187	-18,820	-45,585	-39,575	'

Subsequent_Events_Details

Subsequent Events (Details) (USD $)	3 Months Ended		6 Months Ended		9 Months Ended
In Thousands, except Share data in Millions, unless otherwise specified	Jul. 27, 2014	Apr. 27, 2014	Jul. 27, 2014	Jul. 28, 2013	Oct. 26, 2014
					Subsequent Event [Member]
Subsequent Event [Line Items]	'	'	'	'	'
Payments for Repurchase of Common Stock	'	$500,000	$500,000	$850,000	$310,000
Treasury Stock, Shares, Acquired	6.8	20.6	27.4	'	10.9