Google 10-Q 29 Apr 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2015	Apr. 23, 2015
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Trading Symbol	GOOG, GOOGL
Entity Registrant Name	Google Inc.
Entity Central Index Key	1288776
Current Fiscal Year End Date	-19
Entity Filer Category	Large Accelerated Filer
Class A Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		288,264,671
Class B Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		52,452,377
Class C Capital Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		341,692,317

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Current assets:
Cash and cash equivalents	$16,976	$18,347
Marketable securities	48,460	46,048
Total cash, cash equivalents, and marketable securities (including securities loaned of $4,058 and $2,574)	65,436	64,395
Accounts receivable, net of allowance of $225 and $200	8,584	9,383
Receivable under reverse repurchase agreements	825	875
Deferred income taxes, net	847	1,322
Income taxes receivable, net	901	1,298
Prepaid revenue share, expenses and other assets	3,720	3,412
Total current assets	80,313	80,685
Prepaid revenue share, expenses and other assets, non-current	3,596	3,280
Non-marketable investments	4,090	3,079
Property and equipment, net	25,448	23,883
Intangible assets, net	4,380	4,607
Goodwill	15,573	15,599
Total assets	133,400	131,133
Current liabilities:
Accounts payable	1,688	1,715
Short-term debt	2,009	2,009
Accrued compensation and benefits	1,911	3,069
Accrued expenses and other current liabilities	4,494	4,434
Accrued revenue share	1,755	1,952
Securities lending payable	1,657	2,778
Deferred revenue	699	752
Income taxes payable, net	123	96
Total current liabilities	14,336	16,805
Long-term debt	3,226	3,228
Deferred revenue, non-current	93	104
Income taxes payable, non-current	3,717	3,407
Deferred income taxes, net, non-current	1,845	1,971
Other long-term liabilities	1,735	1,118
Commitments and contingencies
Stockholders’ equity:
Convertible preferred stock, $0.001 par value per share, 100,000 shares authorized; no shares issued and outstanding	0	0
Class A and Class B common stock, and Class C capital stock and additional paid-in capital, $0.001 par value per share: 15,000,000 shares authorized (Class A 9,000,000, Class B 3,000,000, Class C 3,000,000); 680,172 (Class A 286,560, Class B 53,213, Class C 340,399) and par value of $680 (Class A $287, Class B $53, Class C $340) and 682,330 (Class A 288,198, Class B 52,480, Class C 341,652) and par value of $682 (Class A $288, Class B $52, Class C $342) shares issued and outstanding	29,527	28,767
Accumulated other comprehensive income (loss)	-371	27
Retained earnings	79,292	75,706
Total stockholders’ equity	108,448	104,500
Total liabilities and stockholders’ equity	$133,400	$131,133

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Total cash equivalents and marketable securities, securities loaned	$2,574,000,000	$4,058,000,000
Accounts receivable, allowance	200,000,000	225,000,000
Convertible preferred stock, par value per share (in dollars per share)	$0.00	$0.00
Convertible preferred stock, shares authorized	100,000,000	100,000,000
Convertible preferred stock, shares issued	0	0
Convertible preferred stock, shares outstanding	0	0
Common and Capital Stock, Par or Slated Value Per Share	$0.00	$0.00
Common and Capital Stock, Shares Authorized	15,000,000,000	15,000,000,000
Common and Capital Stock, Value, Issued	682,000	680,000
Common and Capital Stock, Shares, Issued	682,330,000	680,172,000
Common and Capital Stock, Shares, Outstanding	682,330,000	680,172,000
Class A Common Stock
Common stock, par value (in dollars per share)	$0.00	$0.00
Common stock, number of shares authorized	9,000,000,000	9,000,000,000
Common stock, par value	288,000	287,000
Common stock, shares issued	288,198,000	286,560,000
Common stock, shares outstanding	288,198,000	286,560,000
Class B Common Stock
Common stock, par value (in dollars per share)	$0.00	$0.00
Common stock, number of shares authorized	3,000,000,000	3,000,000,000
Common stock, par value	52,000	53,000
Common stock, shares issued	52,480,000	53,213,000
Common stock, shares outstanding	52,480,000	53,213,000
Class C Capital Stock
Capital stock, par value (in dollars per share)	$0.00	$0.00
Capital stock, number of shares authorized	3,000,000,000	3,000,000,000
Capital stock, value, issued	$342,000	$340,000
Capital stock, shares issued	341,652,000	340,399,000
Capital stock, shares outstanding	341,652,000	340,399,000

CONSOLIDATED_STATEMENTS_OF_INC

CONSOLIDATED STATEMENTS OF INCOME (USD $)	3 Months Ended
In Millions, except Share data in Thousands, unless otherwise specified	Mar. 31, 2015		Mar. 31, 2014
Revenues:
Revenues	$17,258		$15,420
Costs and expenses:
Cost of revenues	6,356	[1]	5,961	[1]
Research and development	2,753	[1]	2,126	[1]
Sales and marketing	2,065	[1]	1,729	[1]
General and administrative	1,637	[1]	1,489	[1]
Total costs and expenses	12,811		11,305
Income from operations	4,447		4,115
Interest and other income, net	157		357
Income from continuing operations before income taxes	4,604		4,472
Provision for income taxes	1,018		822
Net income from continuing operations	3,586		3,650
Net loss from discontinued operations (1)	0	[1]	-198	[1]
Net income	3,586		3,452
Basic net income (loss) per share of Class A and B common stock and Class C capital stock:
Continuing operations (in dollars per share)	$5.27		$5.42
Discontinued operations (in dollars per share)	$0		($0.29)
Net income per share - basic (in dollars per share)	$5.27		$5.13
Diluted net income (loss) per share of Class A and B common stock and Class C capital stock:
Continuing operations (in dollars per share)	$5.20		$5.33
Discontinued operations (in dollars per share)	$0		($0.29)
Net income per share - diluted (in dollars per share)	$5.20		$5.04
Weighted Average Number of Shares Outstanding
Shares used in per share calculation - basic (in shares)	680,915		672,587
Shares used in per share calculation - diluted (in shares)	689,498		685,212
Total stock-based compensation expense	1,203		887
Cost of revenues
Weighted Average Number of Shares Outstanding
Total stock-based compensation expense	160		95
Research and development
Weighted Average Number of Shares Outstanding
Total stock-based compensation expense	615		456
Sales and marketing
Weighted Average Number of Shares Outstanding
Total stock-based compensation expense	205		147
General and administrative
Weighted Average Number of Shares Outstanding
Total stock-based compensation expense	223		141
Discontinued operations
Weighted Average Number of Shares Outstanding
Total stock-based compensation expense	$0		$48
[1]	(1) Includes stock-based compensation expense as follows: Cost of revenues$95 $160Research and development456 615Sales and marketing147 205General and administrative141 223Discontinued operations48 0Total stock-based compensation expense$887 $1,203

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$3,586	$3,452
Other comprehensive income (loss):
Change in foreign currency translation adjustment	-923	65
Available-for-sale investments:
Change in net unrealized gains	221	217
Less: reclassification adjustment for net gains included in net income	-27	-67
Net change (net of tax effect of $42 and $61)	194	150
Cash flow hedges:
Change in net unrealized gains	562	10
Less: reclassification adjustment for net gains included in net income	-231	-5
Net change (net of tax effect of $30 and $192)	331	5
Other comprehensive income (loss)	-398	220
Comprehensive income	$3,188	$3,672

CONSOLIDATED_STATEMENTS_OF_COM1

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Tax effect related to available-for-sale investments	$61	$42
Tax effect related to cash flow hedges	$192	$30

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Operating activities
Net income	$3,586	$3,452
Adjustments:
Depreciation expense and impairment of property and equipment	938	816
Amortization and impairment of intangible and other assets	239	270
Stock-based compensation expense	1,203	887
Excess tax benefits from stock-based award activities	-105	-155
Deferred income taxes	71	144
Gain on equity interest	0	-103
Gain on sale of non-marketable investments	0	-117
Other	77	-14
Changes in assets and liabilities, net of effects of acquisitions:
Accounts receivable	698	267
Income taxes, net	756	201
Prepaid revenue share, expenses and other assets	43	-308
Accounts payable	-24	177
Accrued expenses and other liabilities	-601	-1,079
Accrued revenue share	-205	-70
Deferred revenue	-59	23
Net cash provided by operating activities	6,617	4,391
Investing activities
Purchases of property and equipment	-2,927	-2,345
Purchases of marketable securities	-12,558	-12,082
Maturities and sales of marketable securities	10,389	9,406
Purchases of non-marketable investments	-1,074	-168
Cash collateral related to securities lending	-1,120	779
Investments in reverse repurchase agreements	50	50
Acquisitions, net of cash acquired, and purchases of intangibles and other assets	-64	-2,947
Net cash used in investing activities	-7,304	-7,307
Financing activities
Net payments related to stock-based award activities	-493	-326
Excess tax benefits from stock-based award activities	105	155
Proceeds from issuance of debt, net of costs	3,305	3,416
Repayments of debt	-3,308	-2,423
Net cash provided by (used in) financing activities	-391	822
Effect of exchange rate changes on cash and cash equivalents	-293	-5
Net decrease in cash and cash equivalents	-1,371	-2,099
Cash and cash equivalents at beginning of period	18,347	18,898
Reclassification of assets previously held for sale	0	-160
Cash and cash equivalents at end of period	16,976	16,639
Supplemental disclosures of cash flow information
Cash paid for taxes	98	353
Cash paid for interest	$18	$0

Google_Inc_and_Summary_of_Sign

Google Inc. and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Google Inc. and Summary of Significant Accounting Policies	Google Inc. and Summary of Significant Accounting Policies
	We were incorporated in California in September 1998 and re-incorporated in the State of Delaware in August 2003. We generate revenues primarily by delivering relevant, cost-effective online advertising.
	On October 29, 2014, we sold the Motorola Mobile business (Motorola Mobile) to Lenovo Group Limited (Lenovo). The financial results of Motorola Mobile are presented as Net loss from discontinued operations on the Consolidated Statements of Income for the three months ended March 31, 2014. See Note 8 for further discussion of the sale.
	Basis of Consolidation
	The consolidated financial statements include the accounts of Google Inc. and our subsidiaries. All intercompany balances and transactions have been eliminated.
	Unaudited Interim Financial Information
	The accompanying Consolidated Balance Sheet as of March 31, 2015, the Consolidated Statements of Income for the three months ended March 31, 2014 and 2015, the Consolidated Statements of Comprehensive Income for the three months ended March 31, 2014 and 2015, and the Consolidated Statements of Cash Flows for the three months ended March 31, 2014 and 2015 are unaudited. These unaudited interim consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (GAAP). In our opinion, the unaudited interim consolidated financial statements include all adjustments of a normal recurring nature necessary for the fair presentation of our financial position as of March 31, 2015, our results of operations for the three months ended March 31, 2014 and 2015, and our cash flows for the three months ended March 31, 2014 and 2015. The results of operations for the three months ended March 31, 2015 are not necessarily indicative of the results to be expected for the year ending December 31, 2015.
	These unaudited interim consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2014, filed with the SEC on February 6, 2015.
	Use of Estimates
	The preparation of consolidated financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the amounts reported and disclosed in the financial statements and the accompanying notes. Actual results could differ materially from these estimates. On an ongoing basis, we evaluate our estimates, including those related to the accounts receivable and sales allowances, fair values of financial instruments, intangible assets and goodwill, useful lives of intangible assets and property and equipment, income taxes, and contingent liabilities, among others. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities.
	Recent Accounting Pronouncements
	In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update No. 2014-09 (ASU 2014-09) "Revenue from Contracts with Customers." ASU 2014-09 supersedes the revenue recognition requirements in “Revenue Recognition (Topic 605)”, and requires entities to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to in exchange for those goods or services. As currently issued, ASU 2014-09 is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period, and early adoption is not permitted. We are currently in the process of evaluating the impact of the adoption of ASU 2014-09 on our consolidated financial statements.
	In June 2014, the FASB issued Accounting Standards Update No. 2014-10 (ASU 2014-10) "Development Stage Entities (Topic 915): Elimination of Certain Financial Reporting Requirements, Including an Amendment to Variable Interest Entities Guidance in Topic 810, Consolidation". ASU 2014-10 removes the definition of a development stage entity from the Master Glossary of the ASC thereby removing the financial reporting distinction between development stage entities and other reporting entities. The amendment eliminating the exception to the sufficiency-of-equity-at-risk criterion for development stage entities will be applied retrospectively for annual reporting periods beginning after December 15, 2015, and interim periods therein. Early application of these amendments is permitted. We are currently in the process of evaluating the impact of the adoption of ASU 2014-10 on our consolidated financial statements.
	In June 2014, the FASB issued Accounting Standards Update No. 2014-11 (ASU 2014-11) "Transfers and Servicing (Topic 860): Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures." ASU 2014-11 requires entities to account for repurchase-to-maturity transactions and repurchase financing arrangements as secured borrowings. ASU 2014-11 also expands disclosure requirements for these transactions to include the nature of the collateral being pledged and the time to maturity. The accounting changes are effective for the first interim or annual period beginning after December 15, 2014 and certain disclosure requirements are effective for interim periods beginning after March 15, 2015. In the first quarter of 2015, we adopted the amended accounting requirements and it did not have a material impact on the consolidated financial statements. We will adopt the additional disclosure requirements in the second quarter of 2015.
	In February 2015, the FASB issued Accounting Standards Update No. 2015-02 (ASU 2015-02) "Consolidation (Topic 810): Amendments to the Consolidation Analysis." ASU 2015-02 changes the analysis that a reporting entity must perform to determine whether it should consolidate certain types of legal entities. It is effective for annual reporting periods, and interim periods within those years, beginning after December 15, 2015. Early adoption is permitted, including adoption in an interim period. We are currently in the process of evaluating the impact of the adoption of ASU 2015-02 on our consolidated financial statements.

Financial_Instruments

Financial Instruments	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Financial Instruments	Fair Value Measurements
	We measure our cash equivalents, marketable securities, foreign currency and interest rate derivative contracts, and non-marketable debt securities at fair value on a recurring basis. Fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that is determined based on assumptions that market participants would use in pricing an asset or a liability. Assets and liabilities recorded at fair value are measured and classified in accordance with a three-tier fair value hierarchy based on the observability of the inputs available in the market used to measure fair value:
	Level 1 - Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets.
	Level 2 - Inputs that are based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant inputs are observable in the market or can be derived from observable market data. Where applicable, these models project future cash flows and discount the future amounts to a present value using market-based observable inputs including interest rate curves, foreign exchange rates, and credit ratings.
	Level 3 - Unobservable inputs that are supported by little or no market activities.
	The fair value hierarchy requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.
	We classify our cash equivalents and marketable securities within Level 1 or Level 2 because we use quoted market prices or alternative pricing sources and models utilizing market observable inputs to determine their fair value. We classify our foreign currency and interest rate derivative contracts primarily within Level 2 as the valuation inputs are based on quoted prices and market observable data of similar instruments. We classify our non-marketable debt securities within Level 3 as the valuation inputs are not observable in an active market.
	Cash, Cash Equivalents and Marketable Securities
	The following tables summarize our cash, cash equivalents and marketable securities by significant investment categories as of December 31, 2014 and March 31, 2015 (in millions):
		As of December 31, 2014
		Adjusted				Gross				Gross				Fair				Cash and			Marketable
		Cost				Unrealized				Unrealized				Value				Cash			Securities
						Gains				Losses								Equivalents
	Cash	$	9,863			$	0			$	0			$	9,863			$	9,863		$	0
	Level 1:
	Money market and other funds	2,532				0				0				2,532				2,532			0
	U.S. government notes	15,320				37				(4		)		15,353				1,128			14,225
	Marketable equity securities	988				428				(64		)		1,352				0			1,352
		18,840				465				(68		)		19,237				3,660			15,577
	Level 2:
	Time deposits(1)	2,409				0				0				2,409				2,309			100
	Money market and other funds(2)	1,762				0				0				1,762				1,762			0
	Fixed-income bond funds(3)	385				0				(38		)		347				0			347
	U.S. government agencies	2,327				8				(1		)		2,334				750			1,584
	Foreign government bonds	1,828				22				(10		)		1,840				0			1,840
	Municipal securities	3,370				33				(6		)		3,397				3			3,394
	Corporate debt securities	11,499				114				(122		)		11,491				0			11,491
	Agency residential mortgage-backed securities	8,196				109				(42		)		8,263				0			8,263
	Asset-backed securities	3,456				1				(5		)		3,452				0			3,452
		35,232				287				(224		)		35,295				4,824			30,471
	Total	$	63,935			$	752			$	(292	)		$	64,395			$	18,347		$	46,048
		As of March 31, 2015
		Adjusted				Gross				Gross				Fair				Cash and			Marketable
		Cost				Unrealized				Unrealized				Value				Cash			Securities
						Gains				Losses								Equivalents
		(unaudited)
	Cash	$	10,929			$	0			$	0			$	10,929			$	10,929		$	0
	Level 1:
	Money market and other funds	2,451				0				0				2,451				2,451			0
	U.S. government notes	14,385				93				0				14,478				8			14,470
	Marketable equity securities	984				379				0				1,363				0			1,363
		17,820				472				0				18,292				2,459			15,833
	Level 2:
	Time deposits	2,798				0				0				2,798				2,771			27
	Money market and other funds(2)	810				0				0				810				810			0
	Fixed-income bond funds(3)	370				0				(51		)		319				0			319
	U.S. government agencies	1,973				14				0				1,987				0			1,987
	Foreign government bonds	1,914				27				(5		)		1,936				0			1,936
	Municipal securities	3,679				38				(4		)		3,713				7			3,706
	Corporate debt securities	12,645				178				(64		)		12,759				0			12,759
	Agency residential mortgage-backed securities	8,161				133				(22		)		8,272				0			8,272
	Asset-backed securities	3,620				3				(2		)		3,621				0			3,621
		35,970				393				(148		)		36,215				3,588			32,627
	Total	$	64,719			$	865			$	(148	)		$	65,436			$	16,976		$	48,460
	(1)	The majority of our time deposits are foreign deposits.
	(2)	The balances as of December 31, 2014 and March 31, 2015 were related to cash collateral received in connection with our securities lending program, which was invested in reverse repurchase agreements maturing within three months. See section titled "Securities Lending Program" below for further discussion of this program.
	(3)	Fixed-income bond funds consist of mutual funds that primarily invest in corporate and government bonds.
	We determine realized gains or losses on the sale of marketable securities on a specific identification method. We recognized gross realized gains of $98 million and $77 million for the three months ended March 31, 2014 and 2015. We recognized gross realized losses of $24 million and $45 million for the three months ended March 31, 2014 and 2015. We reflect these gains and losses as a component of Interest and other income, net in the accompanying Consolidated Statements of Income.
	The following table summarizes the estimated fair value of our investments in marketable debt securities, accounted for as available-for-sale securities and classified by the contractual maturity date of the securities (in millions):
		As of
		31-Mar-15
		(unaudited)
	Due in 1 year	$	6,279
	Due in 1 year through 5 years	24,805
Due in 5 years through 10 years	6,943
Due after 10 years	8,751
Total	$	46,778
Non-marketable Investments
We included $90 million and $998 million of available-for-sale debt securities in our non-marketable investments as of December 31, 2014 and March 31, 2015. These debt securities are primarily preferred stock with certain features and convertible notes issued by private companies that do not have readily determinable market values and are categorized accordingly as Level 3 in the fair value hierarchy. To estimate the fair value of these securities, we used a combination of valuation methodologies, including market and income approaches based on prior transaction prices, estimated timing, probability and amount of cash flows,  and illiquidity considerations. Financial information of the private companies may not be available to us due to the nature of those companies, and consequently we will estimate the value based on the best available information available to us at the measurement date. As of December 31, 2014 and March 31, 2015, the estimated fair value of these securities approximated their carrying value. In addition, since these securities do not have contractual maturity dates and we do not intend to liquidate them in the next 12 months, we have classified them as non-current assets on the accompanying Consolidated Balance Sheet as of December 31, 2014 and March 31, 2015.
The following table presents reconciliations for our assets measured and recorded at fair value on a recurring basis, using significant unobservable inputs (Level 3) (in millions, unaudited):
	Level 3
Balance at January 1, 2015	$	90
Purchases of securities (1)	908
Balance at March 31, 2015	$	998
(1)	Purchases of securities included our $900 million investment in SpaceX, a space exploration and space transport company, made during January 2015.
Impairment Considerations for Available-for-sale Investments
The following tables present gross unrealized losses and fair values for those marketable investments that were in an unrealized loss position as of December 31, 2014 and March 31, 2015, aggregated by investment category and the length of time that individual securities have been in a continuous loss position (in millions):
		As of December 31, 2014
		Less than 12 Months								12 Months or Greater								Total
		Fair Value				Unrealized				Fair Value				Unrealized				Fair Value			Unrealized
						Loss								Loss							Loss
U.S. government notes		$	4,490			$	(4	)		$	0			$	0			$	4,490		$	(4	)
U.S. government agencies		830				(1		)		0				0				830			(1		)
Foreign government bonds		255				(7		)		43				(3		)		298			(10		)
Municipal securities		877				(3		)		174				(3		)		1,051			(6		)
Corporate debt securities		5,851				(112		)		225				(10		)		6,076			(122		)
Agency residential mortgage-backed securities		609				(1		)		2,168				(41		)		2,777			(42		)
Asset-backed securities		2,388				(4		)		174				(1		)		2,562			(5		)
Fixed-income bond funds		347				(38		)		0				0				347			(38		)
Marketable equity securities		690				(64		)		0				0				690			(64		)
Total		$	16,337			$	(234	)		$	2,784			$	(58	)		$	19,121		$	(292	)
		As of March 31, 2015
		Less than 12 Months								12 Months or Greater								Total
		Fair Value				Unrealized				Fair Value				Unrealized				Fair Value			Unrealized
						Loss								Loss							Loss
										(unaudited)
Foreign government bonds		$	366			$	(4	)		$	23			$	(1	)		$	389		$	(5	)
Municipal securities		930				(3		)		19				(1		)		949			(4		)
Corporate debt securities		3,266				(59		)		126				(5		)		3,392			(64		)
Agency residential mortgage-backed securities		798				(3		)		1,246				(19		)		2,044			(22		)
Asset-backed securities		1,941				(2		)		0				0				1,941			(2		)
Fixed-income bond funds		319				(51		)		0				0				319			(51		)
Total		$	7,620			$	(122	)		$	1,414			$	(26	)		$	9,034		$	(148	)
We periodically review our available-for-sale debt and equity securities for other-than-temporary impairment. We consider factors such as the duration, severity and the reason for the decline in value, the potential recovery period and our intent to sell. For debt securities, we also consider whether (i) it is more likely than not that we will be required to sell the debt securities before recovery of their amortized cost basis, and (ii) the amortized cost basis cannot be recovered as a result of credit losses. During the three months ended March 31, 2014 and 2015, we did not recognize any other-than-temporary impairment loss.
Securities Lending Program
From time to time, we enter into securities lending agreements with financial institutions to enhance investment income. We loan selected securities which are collateralized in the form of cash or securities. Cash collateral is invested in reverse repurchase agreements which are collateralized in the form of securities.
We classify loaned securities as cash equivalents or marketable securities and record the cash collateral as an asset with a corresponding liability in the accompanying Consolidated Balance Sheets. We classify reverse repurchase agreements maturing within three months as cash equivalents and those longer than three months as receivable under reverse repurchase agreements in the accompanying Consolidated Balance Sheets. For security collateral received, we do not record an asset or liability except in the event of counterparty default.
Derivative Financial Instruments
We recognize derivative instruments as either assets or liabilities in the accompanying Consolidated Balance Sheets at fair value. We record changes in the fair value (i.e. gains or losses) of the derivatives in the accompanying Consolidated Statements of Income as Interest and other income, net, as part of revenues, or as a component of accumulated other comprehensive income (AOCI) in the accompanying Consolidated Balance Sheets, as discussed below.
We enter into foreign currency contracts with financial institutions to reduce the risk that our cash flows and earnings will be adversely affected by foreign currency exchange rate fluctuations. We use certain interest rate derivative contracts to hedge interest rate exposures on our fixed income securities and our anticipated debt issuance. Our program is not used for trading or speculative purposes.
We enter into master netting arrangements, which reduce credit risk by permitting net settlement of transactions with the same counterparty. To further reduce credit risk, we enter into collateral security arrangements under which the counterparty is required to provide collateral when the net fair value of certain financial instruments fluctuates from contractually established thresholds. We can take possession of the collateral in the event of counterparty default. As of December 31, 2014 and March 31, 2015, we received cash collateral related to the derivative instruments under our collateral security arrangements of $268 million and $311 million.
Cash Flow Hedges
We use options designated as cash flow hedges to hedge certain forecasted revenue transactions denominated in currencies other than the U.S. dollar. The notional principal of these contracts was approximately $13.6 billion and $13.5 billion as of December 31, 2014 and March 31, 2015. These foreign exchange contracts have maturities of 36 months or less.
In 2012, we entered into forward-starting interest rate swaps, with a total notional amount of $1.0 billion and terms calling for us to receive interest at a variable rate and to pay interest at a fixed rate, that effectively locked in an interest rate on our anticipated debt issuance of $1.0 billion in 2014. We issued $1.0 billion of unsecured senior notes in February 2014 (See details in Note 3). As a result, we terminated the forward-starting interest rate swaps upon the debt issuance. The gain associated with the termination is reported within operating activities in the Consolidated Statement of Cash Flows for the three months ended March 31, 2014, consistent with the impact of the hedged item.
We reflect gains or losses on the effective portion of a cash flow hedge as a component of AOCI and subsequently reclassify cumulative gains and losses to revenues or interest expense when the hedged transactions are recorded. If the hedged transactions become probable of not occurring, the corresponding amounts in AOCI would be immediately reclassified to Interest and other income, net. Further, we exclude the change in the time value of the options from our assessment of hedge effectiveness. We record the premium paid or time value of an option on the date of purchase as an asset. Thereafter, we recognize changes to this time value in Interest and other income, net.
As of March 31, 2015, the effective portion of our cash flow hedges before tax effect was $1.3 billion, of which $1.1 billion is expected to be reclassified from AOCI into earnings within the next 12 months.
Fair Value Hedges
We use forward contracts designated as fair value hedges to hedge foreign currency risks for our investments denominated in currencies other than the U.S. dollar. We exclude changes in the time value for these forward contracts from the assessment of hedge effectiveness. The notional principal of these contracts was $1.5 billion as of December 31, 2014 and March 31, 2015.
We use interest rate swaps designated as fair value hedges to hedge interest rate risk for certain fixed rate securities. The notional principal of these contracts was $175 million and $200 million as of December 31, 2014 and March 31, 2015.
Gains and losses on these forward contracts and interest rate swaps are recognized in Interest and other income, net along with the offsetting losses and gains of the related hedged items. Realized gains and losses on these forward contracts and interest rate swaps are reported within investment activities in the Consolidated Statement of Cash Flows, consistent with the impact of the hedged items.
Other Derivatives
Other derivatives not designated as hedging instruments consist of forward contracts that we use to hedge intercompany transactions and other monetary assets or liabilities denominated in currencies other than the local currency of a subsidiary. We recognize gains and losses on these contracts, as well as the related costs in Interest and other income, net along with the foreign currency gains and losses on monetary assets and liabilities. The notional principal of foreign exchange contracts outstanding was $6.2 billion as of December 31, 2014 and March 31, 2015.
We also use exchange-traded interest rate futures contracts and “To Be Announced” (TBA) forward purchase commitments of mortgage-backed assets to hedge interest rate risks on certain fixed income securities. The TBA contracts meet the definition of derivative instruments in cases where physical delivery of the assets is not taken at the earliest available delivery date. Our interest rate futures and TBA contracts (together interest rate contracts) are not designated as hedging instruments. We recognize gains and losses on these contracts, as well as the related costs, in Interest and other income, net. The gains and losses are generally economically offset by unrealized gains and losses in the underlying available-for-sale securities, which are recorded as a component of AOCI until the securities are sold or other-than-temporarily impaired, at which time the amounts are moved from AOCI into Interest and other income, net. The total notional amounts of interest rate contracts outstanding were $150 million as of December 31, 2014 and $250 million as of March 31, 2015.
The fair values of our outstanding derivative instruments were as follows (in millions):
			As of December 31, 2014
	Balance Sheet Location		Fair Value of				Fair Value of				Total Fair
			Derivatives				Derivatives Not				Value
			Designated as				Designated as
			Hedging Instruments				Hedging Instruments
Derivative Assets:
Level 2:
Foreign exchange contracts	Prepaid revenue share, expenses and other assets, current and non-current		$	851			$	0			$	851
Interest rate contracts	Prepaid revenue share, expenses and other assets, current and non-current		1				0				1
Total			$	852			$	0			$	852
Derivative Liabilities:
Level 2:
Foreign exchange contracts	Accrued expenses and other current liabilities		$	0			$	3			$	3
Interest rate contracts	Accrued expenses and other liabilities, current and non-current		1				0				1
Total			$	1			$	3			$	4
			As of March 31, 2015
	Balance Sheet Location		Fair Value of				Fair Value of				Total Fair
			Derivatives				Derivatives Not				Value
			Designated as				Designated as
			Hedging Instruments				Hedging Instruments
			(unaudited)
Derivative Assets:
Level 2:
Foreign exchange contracts	Prepaid revenue share, expenses and other assets, current and non-current		$	1,265			$	4			$	1,269
Total			$	1,265			$	4			$	1,269
Derivative Liabilities:
Level 2:
Foreign exchange contracts	Accrued expenses and other current liabilities		$	17			$	2			$	19
Interest rate contracts	Accrued expenses and other liabilities, current and non-current		2				1				3
Total			$	19			$	3			$	22
The effect of derivative instruments in cash flow hedging relationships on income and other comprehensive income (OCI) is summarized below (in millions):
	Gains (Losses) Recognized in OCI on Derivatives Before Tax Effect (Effective Portion)
	Three Months Ended
	March 31,
Derivatives in Cash Flow Hedging Relationship	2014				2015
	(unaudited)
Foreign exchange contracts	$	13			$	836
Interest rate contracts	(31		)		0
Total	$	(18	)		$	836
	Gains Reclassified from AOCI into Income (Effective Portion)
			Three Months Ended
			March 31,
Derivatives in Cash Flow Hedging Relationship	Income Statement Location		2014				2015
			(unaudited)
Foreign exchange contracts	Revenues		$	8			$	311
Interest rate contracts	Interest and other income, net		0				1
Total			$	8			$	312
	Gains (Losses) Recognized in Income on Derivatives (1)
	(Amount Excluded from  Effectiveness Testing and
	Ineffective Portion)
			Three Months Ended
			March 31,
Derivatives in Cash Flow Hedging Relationship	Income Statement Location		2014				2015
			(unaudited)
Foreign exchange contracts	Interest and		$	(67	)		$	(101	)
	other income, net
Interest rate contracts	Interest and other income, net		4				0
Total			$	(63	)		$	(101	)
(1)	Gains (losses) related to the ineffective portion of the hedges were not material in all periods presented.
The effect of derivative instruments in fair value hedging relationships on income is summarized below (in millions):
	Gains (Losses) Recognized in Income on Derivatives(2)
			Three Months Ended
			March 31,
Derivatives in Fair Value Hedging Relationship	Income Statement Location		2014				2015
			(unaudited)
Foreign Exchange Hedges:
Foreign exchange contracts	Interest and		$	(2	)		$	111
	other income, net
Hedged item	Interest and		0				(113		)
	other income, net
Total			$	(2	)		$	(2	)
Interest Rate Hedges:
Interest rate contracts	Interest and other income, net		$	0			$	(2	)
Hedged item	Interest and other income, net		0				2
Total			$	0			$	0
(2)	Losses related to the amount excluded from effectiveness testing of the hedges were $2 million and $2 million for the three months ended March 31, 2014 and 2015.
The effect of derivative instruments not designated as hedging instruments on income is summarized below (in millions):
	Gains (Losses) Recognized in Income on Derivatives
			Three Months Ended
			March 31,
Derivatives Not Designated As Hedging Instruments	Income Statement Location		2014				2015
			(unaudited)
Foreign exchange contracts	Interest and		$	(37	)		$	157
	other income, net and net loss from discontinued operations
Interest rate contracts	Interest and		1				(7		)
	other income, net
Total			$	(36	)		$	150
Offsetting of Derivatives, Securities Lending and Reverse Repurchase Agreements
We present our derivatives, securities lending and reverse repurchase agreements at gross fair values in the Consolidated Balance Sheets. However, our master netting and other similar arrangements allow net settlements under certain conditions. As of December 31, 2014 and March 31, 2015, information related to these offsetting arrangements was as follows (in millions):
Offsetting of Assets
	As of December 31, 2014
													Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset
Description	Gross Amounts of Recognized Assets				Gross Amounts Offset in the Consolidated Balance Sheets				Net Presented in the Consolidated Balance Sheets				Financial Instruments				Cash Collateral Received			Non-Cash Collateral Received				Net Assets Exposed
Derivatives	$	852			$	0			$	852			$	(1	)	(1)	$	(251	)	$	(412	)		$	188
Reverse repurchase agreements	2,637				0				2,637			(2)	0				0			(2,637		)		0
Total	$	3,489			$	0			$	3,489			$	(1	)		$	(251	)	$	(3,049	)		$	188
	As of March 31, 2015
													Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset
Description	Gross Amounts of Recognized Assets				Gross Amounts Offset in the Consolidated Balance Sheets				Net Presented in the Consolidated Balance Sheets				Financial Instruments				Cash Collateral Received			Non-Cash Collateral Received				Net Assets Exposed
	(unaudited)
Derivatives	$	1,269			$	0			$	1,269			$	(1	)	(1)	$	(302	)	$	(818	)		$	148
Reverse repurchase agreements	1,635				0				1,635			(2)	0				0			(1,635		)		0
Total	$	2,904			$	0			$	2,904			$	(1	)		$	(302	)	$	(2,453	)		$	148
(1)	The balances as of December 31, 2014 and March 31, 2015 were related to derivative liabilities which are allowed to be net settled against derivative assets in accordance with our master netting agreements.
(2)	The balances as of December 31, 2014 and March 31, 2015 included $1,762 million and $810 million recorded in cash and cash equivalents, respectively, and $875 million and $825 million recorded in receivable under reverse repurchase agreements, respectively.
Offsetting of Liabilities
	As of December 31, 2014
													Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset
Description	Gross Amounts of Recognized Liabilities				Gross Amounts Offset in the Consolidated Balance Sheets				Net Presented in the Consolidated Balance Sheets				Financial Instruments				Cash Collateral Pledged			Non-Cash Collateral Pledged				Net Liabilities
Derivatives	$	4			$	0			$	4			$	(1	)	(3)	$	0		$	0			$	3
Securities lending agreements	2,778				0				2,778				0				0			(2,740		)		38
Total	$	2,782			$	0			$	2,782			$	(1	)		$	0		$	(2,740	)		$	41
	As of March 31, 2015
													Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset
Description	Gross Amounts of Recognized Liabilities				Gross Amounts Offset in the Consolidated Balance Sheets				Net Presented in the Consolidated Balance Sheets				Financial Instruments				Cash Collateral Pledged			Non-Cash Collateral Pledged				Net Liabilities
	(unaudited)
Derivatives	$	22			$	0			$	22			$	(1	)	(3)	$	(1	)	$	0			$	20
Securities lending agreements	1,657				0				1,657				0				0			(1,643		)		14
Total	$	1,679			$	0			$	1,679			$	(1	)		$	(1	)	$	(1,643	)		$	34
(3)	The balances as of December 31, 2014 and March 31, 2015 were related to derivative assets which are allowed to be net settled against derivative liabilities in accordance with our master netting agreements.

Debt

Debt	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
Debt	Debt
	Short-Term Debt
	We have a debt financing program of up to $3.0 billion through the issuance of commercial paper. Net proceeds from this program are used for general corporate purposes. As of December 31, 2014 and March 31, 2015, we had $2.0 billion of outstanding commercial paper recorded as short-term debt with weighted-average interest rates of 0.1%. In conjunction with this program, we have a $3.0 billion revolving credit facility which expires in July 2016. The interest rate for the credit facility is determined based on a formula using certain market rates. As of December 31, 2014 and March 31, 2015, we were in compliance with the financial covenants in the credit facility, and no amounts were outstanding under the credit facility at December 31, 2014 and March 31, 2015. The estimated fair value of the commercial paper approximated its carrying value as of December 31, 2014 and March 31, 2015.
	Long-Term Debt
	We issued $1.0 billion of unsecured senior notes (the "2014 Notes") in February 2014 and $3.0 billion of unsecured senior notes in three tranches (collectively, the "2011 Notes") in May 2011. We used the net proceeds from the issuance of the 2011 Notes to repay a portion of our outstanding commercial paper and for general corporate purposes. We used the net proceeds from the issuance of the 2014 Notes for the repayment of the portion of the principal amount of our 2011 Notes which matured on May 19, 2014 and for general corporate purposes. The total outstanding Notes are summarized below:
		As of			As of
		31-Dec-14			31-Mar-15
					(unaudited)
	Short-Term Portion of Long-Term Debt
	Capital Lease Obligation	$	10		$	9
	Total	$	10		$	9
	Long-Term Debt
	2.125% Notes due on May 19, 2016	$	1,000		$	1,000
	3.625% Notes due on May 19, 2021	1,000			1,000
	3.375% Notes due on February 25, 2024	1,000			1,000
	Unamortized discount for the Notes above	(8		)	(7		)
	Subtotal	2,992			2,993
	Capital Lease Obligation	236			233
	Total	$	3,228		$	3,226
	The effective interest yields of the Notes due in 2016, 2021, and 2024 were 2.241%, 3.734% and 3.377%, respectively. Interest on the 2011 and 2014 Notes is payable semi-annually. The 2011 and 2014 Notes rank equally with each other and with all of our other senior unsecured and unsubordinated indebtedness from time to time outstanding. We may redeem the 2011 and 2014 Notes at any time in whole or in part at specified redemption prices. We are not subject to any financial covenants under the 2011 Notes or the 2014 Notes. The total estimated fair value of the outstanding 2011 and 2014 Notes was approximately $3.1 billion and $3.2 billion as of December 31, 2014 and March 31, 2015. The fair value of the outstanding 2011 and 2014 Notes was determined based on observable market prices of identical instruments in less active markets and is categorized accordingly as Level 2 in the fair value hierarchy.
	In August 2013, we entered into a capital lease obligation on certain property which expires in 2028 with an option to purchase the property in 2016. The effective rate of the capital lease obligation approximates the market rate. The estimated fair value of the capital lease obligation approximated its carrying value as of December 31, 2014 and March 31, 2015.

Balance_Sheet_Components

Balance Sheet Components	3 Months Ended
	Mar. 31, 2015
Balance Sheet Components Disclosure [Abstract]
Balance Sheet Components	Balance Sheet Components
	Property and Equipment
	Property and equipment consisted of the following (in millions):
		As of				As of
		31-Dec-14				31-Mar-15
						(unaudited)
	Information technology assets	$	10,918			$	11,855
	Land and buildings	13,326				13,479
	Construction in progress	6,555				7,415
	Leasehold improvements	1,868				2,016
	Furniture and fixtures	79				78
	Property and equipment, gross	32,746				34,843
	Less: accumulated depreciation and amortization	(8,863		)		(9,395		)
	Property and equipment, net	$	23,883			$	25,448
	Property under capital lease with a cost basis of $258 million was included in land and buildings and construction in progress as of March 31, 2015.
	Prepaid Revenue Share, Expenses and Other Assets, Non-Current
	Note Receivable
	In connection with the sale of our Motorola Mobile business on October 29, 2014 (see Note 8 for additional information), we received an interest-free, three-year prepayable promissory note (the "Note Receivable") due October 2017 from Lenovo. The Note Receivable is included in prepaid revenue share, expenses and other assets, non-current on our Consolidated Balance Sheets. Based on the general market conditions and the credit quality of Lenovo, we discounted the Note Receivable at an effective interest rate of 4.5% as shown in the table below (in millions):
		As of				As of
		31-Dec-14				31-Mar-15
						(unaudited)
	Principal of the Note Receivable	$	1,500			$	1,500
	Less: unamortized discount for the Note Receivable	(175		)		(160		)
	Total	$	1,325			$	1,340
	As of December 31, 2014 and March 31, 2015, we did not recognize any valuation allowance on the Note Receivable.
	Accumulated Other Comprehensive Income (Loss)
	The components of AOCI, net of tax, were as follows (in millions, unaudited):
		Foreign Currency Translation Adjustments				Unrealized Gains (Losses) on Available-for-Sale Investments				Unrealized Gains on Cash Flow Hedges			Total
	Balance as of December 31, 2013	$	16			$	50			$	59		$	125
	Other comprehensive income before reclassifications	65				217				10			292
	Amounts reclassified from AOCI	0				(67		)		(5		)	(72		)
	Other comprehensive income	65				150				5			220
	Balance as of March 31, 2014	$	81			$	200			$	64		$	345
		Foreign Currency Translation Adjustments				Unrealized Gains (Losses) on Available-for-Sale Investments				Unrealized Gains on Cash Flow Hedges			Total
	Balance as of December 31, 2014	$	(980	)		$	421			$	586		$	27
	Other comprehensive income (loss) before reclassifications	(923		)		221				562			(140		)
	Amounts reclassified from AOCI	0				(27		)		(231		)	(258		)
	Other comprehensive income (loss)	(923		)		194				331			(398		)
	Balance as of March 31, 2015	$	(1,903	)		$	615			$	917		$	(371	)
	The effects on net income of amounts reclassified from AOCI were as follows (in millions, unaudited):
					Gains (Losses) Reclassified from AOCI to the Consolidated Statement of Income
					Three Months Ended March 31,
	AOCI Components		Location		2014				2015
	Unrealized gains on available-for-sale investments
			Interest and other income, net		$	74			$	32
			Provision for income taxes		(7		)		(5		)
			Net of tax		$	67			$	27
	Unrealized gains on cash flow hedges
	Foreign exchange contracts		Revenue		$	8			$	311
	Interest rate contracts		Interest and other income, net		0				1
			Provision for income taxes		(3		)		(81		)
			Net of tax		$	5			$	231
	Total amount reclassified, net of tax				$	72			$	258

Acquisitions

Acquisitions	3 Months Ended
	Mar. 31, 2015
Business Combinations [Abstract]
Acquisitions	Acquisitions
	During the three months ended March 31, 2015, we completed various acquisitions and purchases of intangible assets for total consideration of approximately $64 million. In aggregate, $26 million was attributed to intangible assets, $17 million was attributed to goodwill, and $21 million was attributed to net assets acquired. These acquisitions generally enhance the breadth and depth of our offerings and expand our expertise in engineering and other functional areas. The amount of goodwill expected to be deductible for tax purposes is approximately $6 million.
	Pro forma results of operations for these acquisitions have not been presented because they are not material to the consolidated results of operations, either individually or in aggregate.
	For all acquisitions completed during the three months ended March 31, 2015, patents and developed technology have a weighted-average useful life of 4.1 years and trade names and other have a weighted-average useful life of 3.0 years.

Collaboration_Agreement

Collaboration Agreement	3 Months Ended
	Mar. 31, 2015
Research and Development [Abstract]
Collaboration Agreement	Collaboration Agreement
	On September 18, 2013, we announced the formation of Calico, a life science company with a mission to harness advanced technologies to increase our understanding of the biology that controls lifespan. Calico's results of operations and statement of financial position are included in our consolidated financial statements. As of March 31, 2015, Google has contributed $240 million to Calico in exchange for Calico convertible preferred units. As of March 31, 2015, Google has also committed to fund an additional $490 million on an as-needed basis.
	In September 2014, AbbVie Inc. (AbbVie) and Calico announced a research and development collaboration intended to help both companies discover, develop, and bring to market new therapies for patients with age-related diseases, including neurodegeneration and cancer. As of March 31, 2015, AbbVie has contributed $750 million to fund the collaboration pursuant to the agreement, which reflects its total commitment. As of March 31, 2015, Calico has contributed $250 million and committed up to an additional $500 million.
	Calico will use its scientific expertise to establish a world-class research and development facility, with a focus on drug discovery and early drug development; and AbbVie will provide scientific and clinical development support and its commercial expertise to bring new discoveries to market. Both companies will share costs and profits equally. AbbVie's contribution has been recorded as a liability on Calico's financial statements, which is reduced and reflected as a reduction to research and development expense as eligible research and development costs are incurred by Calico over the next few years.

Goodwill_and_Other_Intangible_

Goodwill and Other Intangible Assets	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets
	Goodwill
	The changes in the carrying amount of goodwill for the three months ended March 31, 2015 were as follows (in millions, unaudited):
	Balance as of December 31, 2014	$	15,599
	Goodwill acquired	17
	Goodwill adjustment	(43		)
	Balance as of March 31, 2015	$	15,573
	Other Intangible Assets
	Information regarding our purchased intangible assets was as follows (in millions):
		As of December 31, 2014
		Gross			Accumulated		Net
		Carrying			Amortization		Carrying
		Amount					Value
	Patents and developed technology	$	6,547		$	2,513	$	4,034
	Customer relationships	1,410			1,168		242
	Trade names and other	696			365		331
	Total	$	8,653		$	4,046	$	4,607
		As of March 31, 2015
		Gross			Accumulated		Net
		Carrying			Amortization		Carrying
		Amount					Value
		(unaudited)
	Patents and developed technology	$	6,510		$	2,697	$	3,813
	Customer relationships	1,396			1,199		197
	Trade names and other	729			359		370
	Total	$	8,635		$	4,255	$	4,380
	Amortization expense relating to our purchased intangible assets was $270 million and $239 million for the three months ended March 31, 2014 and 2015. For the three months ended March 31, 2014, amortization expense related to Motorola Mobile was included in net loss from discontinued operations.
	As of March 31, 2015, expected amortization expense relating to purchased intangible assets for each of the next five years and thereafter was as follows (in millions, unaudited):
	Remainder of 2015	$	649
	2016	791
	2017	714
	2018	631
	2019	522
	Thereafter	1,073
		$	4,380

Discontinued_Operations

Discontinued Operations	3 Months Ended
	Mar. 31, 2015
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Discontinued Operations
	On October 29, 2014, we closed the sale of the Motorola Mobile business to Lenovo. We maintain ownership of the vast majority of the Motorola Mobile patent portfolio, including pre-closing patent applications and invention disclosures, which we licensed to Motorola Mobile for its continued operations. Additionally, in connection with the sale, we agreed to indemnify Lenovo for certain potential liabilities of the Motorola Mobile business, for which we recorded a liability of $130 million at the time of close.
	The following table presents financial results of the Motorola Mobile business for the three months ended March 31, 2014, which were presented as Net loss from discontinued operations (in millions, unaudited):
		Three Months Ended
		March 31,
		2014
	Revenues	$	1,377
	Loss from discontinued operations before income taxes	(274		)
	Benefits from income taxes	76
	Net loss from discontinued operations	$	(198	)

Interest_and_Other_Income_Net

Interest and Other Income, Net	3 Months Ended
	Mar. 31, 2015
Other Income and Expenses [Abstract]
Interest and Other Income, Net	Interest and Other Income, Net
	The components of Interest and other income, net, were as follows (in millions, unaudited):
		Three Months Ended
		March 31,
		2014			2015
	Interest income	$	168		$	226
	Interest expense	(24		)	(26		)
	Realized gains on available-for-sale investments, net	74			32
	Foreign currency exchange losses, net	(109		)	(62		)
	Realized gain on equity interest	103			0
	Realized gain on non-marketable investments	117			0
	Other income (expense), net	28			(13		)
	Interest and other income, net	$	357		$	157

Contingencies

Contingencies	3 Months Ended
	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies
	Legal Matters
	Antitrust Investigations
	On November 30, 2010, the European Commission's (EC) Directorate General for Competition opened an investigation into various antitrust-related complaints against us. On April 15, 2015, the EC issued a Statement of Objections (SO) regarding the display and ranking of shopping search results. The EC also opened a formal investigation into Android. We will respond to the SO and will continue to cooperate with the EC.
	The Comision Nacional de Defensa de la Competencia in Argentina, the Competition Commission of India, the Taiwan Fair Trade Commission, Brazil's Council for Economic Defense, the Canadian Competition Bureau and the Federal Antimonopoly Service of the Russian Federation have also opened investigations into certain of our business practices.
	The state attorney general from Mississippi issued subpoenas in 2011 and 2012 in an antitrust investigation of our business practices. We have responded to those subpoenas, and we remain willing to cooperate with them if they have any further information requests.
	Patent and Intellectual Property Claims
	We have had patent, copyright, and trademark infringement lawsuits filed against us claiming that certain of our products, services, and technologies infringe the intellectual property rights of others. Adverse results in these lawsuits may include awards of substantial monetary damages, costly royalty or licensing agreements, or orders preventing us from offering certain features, functionalities, products, or services, and may also cause us to change our business practices, and require development of non-infringing products or technologies, which could result in a loss of revenues for us and otherwise harm our business. In addition, the U.S. International Trade Commission (ITC) has increasingly become an important forum to litigate intellectual property disputes because an ultimate loss for a company or its suppliers in an ITC action could result in a prohibition on importing infringing products into the U.S. Since the U.S. is an important market, a prohibition on importation could have an adverse effect on us, including preventing us from importing many important products into the U.S. or necessitating workarounds that may limit certain features of our products.
	Furthermore, many of our agreements with our customers and partners require us to indemnify them for certain intellectual property infringement claims against them, which would increase our costs as a result of defending such claims, and may require that we pay significant damages if there were an adverse ruling in any such claims. Our customers and partners may discontinue the use of our products, services, and technologies, as a result of injunctions or otherwise, which could result in loss of revenues and adversely impact our business.
	Other
	We are also regularly subject to claims, suits, government investigations, and other proceedings involving competition (such as the pending EC investigations described above), intellectual property, privacy, tax, labor and employment, commercial disputes, content generated by our users, goods and services offered by advertisers or publishers using our platforms, personal injury, consumer protection, and other matters. Such claims, suits, government investigations, and other proceedings could result in fines, civil or criminal penalties, or other adverse consequences.
	Certain of our outstanding legal matters include speculative claims for substantial or indeterminate amounts of damages. We record a liability when we believe that it is probable that a loss has been incurred and the amount can be reasonably estimated. If we determine that a loss is possible and a range of the loss can be reasonably estimated, we disclose the range of the possible loss. We evaluate, on a monthly basis, developments in our legal matters that could affect the amount of liability that has been previously accrued, and the matters and related ranges of possible losses disclosed, and make adjustments as appropriate. Significant judgment is required to determine both likelihood of there being and the estimated amount of a loss related to such matters.
	With respect to our outstanding legal matters, based on our current knowledge, we believe that the amount or range of reasonably possible loss will not, either individually or in the aggregate, have a material adverse effect on our business, consolidated financial position, results of operations, or cash flows. However, the outcome of such legal matters is inherently unpredictable and subject to significant uncertainties.
	We expense legal fees in the period in which they are incurred.
	Taxes
	We are under audit by the Internal Revenue Service (IRS) and various other domestic and foreign tax authorities with regards to income tax and indirect tax matters. We have reserved for potential adjustments to our provision for income taxes and accrual of indirect taxes that may result from examinations by, or any negotiated agreements with, these tax authorities, and we believe that the final outcome of these examinations or agreements will not have a material effect on our results of operations. If events occur which indicate payment of these amounts is unnecessary, the reversal of the liabilities would result in the recognition of benefits in the period we determine the liabilities are no longer necessary. If our estimates of the federal, state, and foreign income tax liabilities and indirect tax liabilities are less than the ultimate assessment, it would result in a further charge to expense.
	Please see Note 13 for additional information regarding contingencies related to our income taxes.

Net_Income_Per_Share

Net Income Per Share	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Net Income Per Share	Net Income Per Share
	The following table sets forth the computation of basic and diluted net income per share of Class A and Class B common stock and Class C capital stock (in millions, except share amounts which are reflected in thousands and per share amounts):
		Three Months Ended March 31,
		2014									2015
		(unaudited)
		Class A			Class B			Class C			Class A			Class B			Class C
	Basic net income (loss) per share:
	Numerator
	Allocation of undistributed earnings - continuing operations	$	1,521		$	304		$	1,825		$	1,512		$	278		$	1,796
	Allocation of undistributed earnings - discontinued operations	(83		)	(16		)	(99		)	—			—			—
	Total	$	1,438		$	288		$	1,726		$	1,512		$	278		$	1,796
	Denominator
	Number of shares used in per share computation	280,202			56,091			336,293			287,043			52,846			341,026
	Basic net income (loss) per share:
	Continuing operations	$	5.42		$	5.42		$	5.42		$	5.27		$	5.27		$	5.27
	Discontinued operations	(0.29		)	(0.29		)	(0.29		)	—			—			—
	Basic net income per share	$	5.13		$	5.13		$	5.13		$	5.27		$	5.27		$	5.27
	Diluted net income (loss) per share:
	Numerator
	Allocation of undistributed earnings for basic computation - continuing operations	$	1,521		$	304		$	1,825		$	1,512		$	278		$	1,796
	Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	304			—			—			278			—			—
	Reallocation of undistributed earnings	—			(5		)	—			(8		)	(3		)	8
	Allocation of undistributed earnings - continuing operations	$	1,825		$	299		$	1,825		$	1,782		$	275		$	1,804
	Allocation of undistributed earnings for basic computation - discontinued operations	$	(83	)	$	(16	)	$	(99	)	$	—		$	—		$	—
	Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	(16		)	—			—			—			—			—
	Reallocation of undistributed earnings	—			—			—			—			—			—
	Allocation of undistributed earnings - discontinued operations	$	(99	)	$	(16	)	$	(99	)	$	—		$	—		$	—
	Denominator
	Number of shares used in basic computation	280,202			56,091			336,293			287,043			52,846			341,026
	Weighted-average effect of dilutive securities
	Add:
	Conversion of Class B to Class A common shares outstanding	56,091			—			—			52,846			—			—
	Employee stock options	2,419			—			2,419			1,694			—			1,650
	Restricted stock units and other contingently issuable shares	3,894			—			3,894			1,045			—			4,194
	Number of shares used in per share computation	342,606			56,091			342,606			342,628			52,846			346,870
	Diluted net income (loss) per share:
	Continuing operations	$	5.33		$	5.33		$	5.33		$	5.2		$	5.2		$	5.2
	Discontinued operations	(0.29		)	(0.29		)	(0.29		)	—			—			—
	Diluted net income per share	$	5.04		$	5.04		$	5.04		$	5.2		$	5.2		$	5.2
	For the periods presented above, the net income per share amounts are the same for Class A and Class B common stock and Class C capital stock because the holders of each class are legally entitled to equal per share distributions whether through dividends or in liquidation in accordance with our Fourth Amended and Restated Certificate of Incorporation.

Stockholders_Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Stockholders' Equity	Stockholders’ Equity
	Stock Split Effected In Form of Stock Dividend
	In January 2014, our board of directors approved the distribution of shares of Class C capital stock as a dividend to our holders of Class A and Class B common stock (the Stock Split). The Stock Split had a record date of March 27, 2014 and a payment date of April 2, 2014.
	In accordance with a settlement of litigation involving the authorization to distribute Class C capital stock, at the close of trading on April 2, 2015, the last trading day of the 365 day period following the first date the Class C shares traded on NASDAQ (Lookback Period), we determined that a payment (the Adjustment Payment) in the amount of $522 million was due. The amount of the Adjustment Payment was based on the percentage difference that developed between the volume-weighted average price of Class A and Class C shares during the Lookback Period, as supplied by NASDAQ Data-on-Demand, and was payable to holders of Class C capital stock as of the end of the Lookback Period in cash, Class A common stock, Class C capital stock, or a combination thereof, at the discretion of our board of directors. On April 22, 2015, our board of directors approved the Adjustment Payment to be paid on or about May 4, 2015 in shares of Class C capital stock, and cash in lieu of any fractional shares of Class C capital stock.
	In the quarter ending June 30, 2015, the Adjustment Payment will be allocated to the numerator for calculating net income per share of Class C capital stock from net income available to shareholders and any remaining undistributed earnings will be allocated on a pro rata basis to Class A and Class B common stock and Class C capital stock based on the number of shares used in the per share computation for each class of stock. The dilutive impact of the Adjustment Payment is included in the weighted-average effect of dilutive securities for Class C capital stock in the three months ended March 31, 2015.
	Stock-Based Award Activities
	The following table summarizes the activities for our stock options for the three months ended March 31, 2015:
		Options Outstanding
		Number of		Weighted-		Weighted-	Aggregate
		Shares		Average		Average	Intrinsic
				Exercise Price		Remaining	Value
						Contractual	(in millions) (1)
						Term
						(in years)
		(unaudited)
	Balance as of December 31, 2014	7,240,419		$	215.56
	Granted	0		N/A
	Exercised	(619,179	)	$	179.33
	Forfeited/canceled	(4,153	)	$	312.03
	Balance as of March 31, 2015	6,617,087		$	218.88	4.2	$	2,200
	Exercisable as of March 31, 2015	5,681,295		$	203.22	3.8	$	1,978
	Exercisable as of March 31, 2015 and expected to vest thereafter (2)	5,901,780		$	217.4	4.2	$	2,176
	(1)	The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying awards and the closing stock price of $554.70 and $548.00 for our Class A common stock and Class C capital stock, respectively, on March 31, 2015.
	(2)	Options expected to vest reflect an estimated forfeiture rate.
	As of March 31, 2015, there was $38 million of unrecognized compensation cost related to outstanding Google employee stock options. This amount is expected to be recognized over a weighted-average period of 1.1 years. To the extent the actual forfeiture rate is different from what we have estimated, stock-based compensation expense related to these awards will be different from our expectations.
	The following table summarizes the activities for our unvested restricted stock units (RSUs) for the three months ended March 31, 2015:
		Unvested Restricted Stock Units
		Number of		Weighted-
		Shares		Average
				Grant-Date
				Fair Value
		(unaudited)
	Unvested as of December 31, 2014	24,619,549		$	487.8
	Granted	1,233,138		$	527.84
	Vested	(2,617,997	)	$	434.04
	Forfeited/canceled	(378,918	)	$	479.95
	Unvested as of March 31, 2015	22,855,772		$	496.25
	Expected to vest after March 31, 2015 (1)	20,385,063		$	496.25
	(1)	RSUs expected to vest reflect an estimated forfeiture rate.
	As of March 31, 2015, there was $9.1 billion of unrecognized compensation cost related to unvested Google employee RSUs. This amount is expected to be recognized over a weighted-average period of 2.7 years. To the extent the actual forfeiture rate is different from what we have estimated, stock-based compensation expense related to these awards will be different from our expectations.

Income_Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes
	We are subject to income taxes in the U.S. and numerous foreign jurisdictions. Significant judgment is required in evaluating our uncertain tax positions and determining our provision for income taxes. Our total unrecognized tax benefits were $3,412 million and $3,683 million as of December 31, 2014 and March 31, 2015. Our total unrecognized tax benefits that, if recognized, would affect our effective tax rate were $3,026 million and $3,268 million as of December 31, 2014 and March 31, 2015. Our existing tax positions will continue to generate an increase in liabilities for unrecognized tax benefits.
	Our provision for income taxes and effective tax rate increased from the three months ended March 31, 2014 to the three months ended March 31, 2015 primarily due to more capital loss utilized in prior year and increase in tax reserves, offset by more federal investment tax credits received in the current year.
	Our effective tax rate could fluctuate significantly on a quarterly basis and could be adversely affected to the extent earnings are lower than anticipated in countries that have lower statutory rates and higher than anticipated in countries that have higher statutory rates. Our effective tax rate could also fluctuate due to the net gains and losses recognized by legal entities on certain hedges and related hedged intercompany and other transactions under our foreign exchange risk management program, by changes in the valuation of our deferred tax assets or liabilities, or by changes in tax laws, regulations, or accounting principles, as well as certain discrete items. In addition, we are subject to the continuous examination of our income tax returns by the IRS and other tax authorities. We regularly assess the likelihood of adverse outcomes resulting from these examinations to determine the adequacy of our provision for income taxes.
	We have received tax assessments in multiple foreign jurisdictions asserting transfer pricing adjustments or permanent establishment. We continue to defend any and all such claims as presented. While we believe it is more likely than not that our tax position will be sustained, it is reasonably possible that we will have future obligations related to these matters.

Information_about_Segments_and

Information about Segments and Geographic Areas	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Information about Segments and Geographic Areas	Information about Segments and Geographic Areas
	Subsequent to the completion of our sale of the Motorola Mobile business on October 29, 2014, we operate as a single operating segment. Our chief operating decision maker reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance.
	Revenues by geography are based on the billing addresses of our customers. The following tables set forth revenues and long-lived assets by geographic area (in millions):
		Three Months Ended
		March 31,
		2014		2015
		(unaudited)
	Revenues:
	United States	$	6,656	$	7,388
	United Kingdom	1,583		1,675
	Rest of the world	7,181		8,195
	Total revenues	$	15,420	$	17,258
		As of December 31, 2014		As of
				31-Mar-15
				(unaudited)
	Long-lived assets:
	United States	$	37,355	$	40,136
	International	13,093		12,951
	Total long-lived assets	$	50,448	$	53,087

Subsequent_Events

Subsequent Events	3 Months Ended
	Mar. 31, 2015
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event
	On October 30, 2014, we entered into a lease agreement which, as amended, became effective and commenced on April 1, 2015, pursuant to which Google will lease and manage Moffett Federal Airfield in Mountain View, California for a 60-year term, with unilateral break options that may be exercised at each 15-year period. The total lease payments over the 60-year term are $1.2 billion.

Google_Inc_and_Summary_of_Sign1

Google Inc. and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Nature of Operations	We were incorporated in California in September 1998 and re-incorporated in the State of Delaware in August 2003. We generate revenues primarily by delivering relevant, cost-effective online advertising.
Basis of Consolidation	Basis of Consolidation
	The consolidated financial statements include the accounts of Google Inc. and our subsidiaries. All intercompany balances and transactions have been eliminated.
Unaudited Interim Financial Information	Unaudited Interim Financial Information
	The accompanying Consolidated Balance Sheet as of March 31, 2015, the Consolidated Statements of Income for the three months ended March 31, 2014 and 2015, the Consolidated Statements of Comprehensive Income for the three months ended March 31, 2014 and 2015, and the Consolidated Statements of Cash Flows for the three months ended March 31, 2014 and 2015 are unaudited. These unaudited interim consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (GAAP). In our opinion, the unaudited interim consolidated financial statements include all adjustments of a normal recurring nature necessary for the fair presentation of our financial position as of March 31, 2015, our results of operations for the three months ended March 31, 2014 and 2015, and our cash flows for the three months ended March 31, 2014 and 2015. The results of operations for the three months ended March 31, 2015 are not necessarily indicative of the results to be expected for the year ending December 31, 2015.
	These unaudited interim consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2014, filed with the SEC on February 6, 2015.
Use of Estimates	Use of Estimates
	The preparation of consolidated financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the amounts reported and disclosed in the financial statements and the accompanying notes. Actual results could differ materially from these estimates. On an ongoing basis, we evaluate our estimates, including those related to the accounts receivable and sales allowances, fair values of financial instruments, intangible assets and goodwill, useful lives of intangible assets and property and equipment, income taxes, and contingent liabilities, among others. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities.

Financial_Instruments_Tables

Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Schedule of Cash, Cash Equivalents and Short-term Investments	The following tables summarize our cash, cash equivalents and marketable securities by significant investment categories as of December 31, 2014 and March 31, 2015 (in millions):
		As of December 31, 2014
		Adjusted				Gross				Gross				Fair				Cash and			Marketable
		Cost				Unrealized				Unrealized				Value				Cash			Securities
						Gains				Losses								Equivalents
	Cash	$	9,863			$	0			$	0			$	9,863			$	9,863		$	0
	Level 1:
	Money market and other funds	2,532				0				0				2,532				2,532			0
	U.S. government notes	15,320				37				(4		)		15,353				1,128			14,225
	Marketable equity securities	988				428				(64		)		1,352				0			1,352
		18,840				465				(68		)		19,237				3,660			15,577
	Level 2:
	Time deposits(1)	2,409				0				0				2,409				2,309			100
	Money market and other funds(2)	1,762				0				0				1,762				1,762			0
	Fixed-income bond funds(3)	385				0				(38		)		347				0			347
	U.S. government agencies	2,327				8				(1		)		2,334				750			1,584
	Foreign government bonds	1,828				22				(10		)		1,840				0			1,840
	Municipal securities	3,370				33				(6		)		3,397				3			3,394
	Corporate debt securities	11,499				114				(122		)		11,491				0			11,491
	Agency residential mortgage-backed securities	8,196				109				(42		)		8,263				0			8,263
	Asset-backed securities	3,456				1				(5		)		3,452				0			3,452
		35,232				287				(224		)		35,295				4,824			30,471
	Total	$	63,935			$	752			$	(292	)		$	64,395			$	18,347		$	46,048
		As of March 31, 2015
		Adjusted				Gross				Gross				Fair				Cash and			Marketable
		Cost				Unrealized				Unrealized				Value				Cash			Securities
						Gains				Losses								Equivalents
		(unaudited)
	Cash	$	10,929			$	0			$	0			$	10,929			$	10,929		$	0
	Level 1:
	Money market and other funds	2,451				0				0				2,451				2,451			0
	U.S. government notes	14,385				93				0				14,478				8			14,470
	Marketable equity securities	984				379				0				1,363				0			1,363
		17,820				472				0				18,292				2,459			15,833
	Level 2:
	Time deposits	2,798				0				0				2,798				2,771			27
	Money market and other funds(2)	810				0				0				810				810			0
	Fixed-income bond funds(3)	370				0				(51		)		319				0			319
	U.S. government agencies	1,973				14				0				1,987				0			1,987
	Foreign government bonds	1,914				27				(5		)		1,936				0			1,936
	Municipal securities	3,679				38				(4		)		3,713				7			3,706
	Corporate debt securities	12,645				178				(64		)		12,759				0			12,759
	Agency residential mortgage-backed securities	8,161				133				(22		)		8,272				0			8,272
	Asset-backed securities	3,620				3				(2		)		3,621				0			3,621
		35,970				393				(148		)		36,215				3,588			32,627
	Total	$	64,719			$	865			$	(148	)		$	65,436			$	16,976		$	48,460
	(1)	The majority of our time deposits are foreign deposits.
	(2)	The balances as of December 31, 2014 and March 31, 2015 were related to cash collateral received in connection with our securities lending program, which was invested in reverse repurchase agreements maturing within three months. See section titled "Securities Lending Program" below for further discussion of this program.
	(3)	Fixed-income bond funds consist of mutual funds that primarily invest in corporate and government bonds.
Investments Classified by Contractual Maturity Date	The following table summarizes the estimated fair value of our investments in marketable debt securities, accounted for as available-for-sale securities and classified by the contractual maturity date of the securities (in millions):
		As of
		31-Mar-15
		(unaudited)
	Due in 1 year	$	6,279
	Due in 1 year through 5 years	24,805
	Due in 5 years through 10 years	6,943
	Due after 10 years	8,751
	Total	$	46,778
Schedule of Other Investments Not Readily Marketable	The following table presents reconciliations for our assets measured and recorded at fair value on a recurring basis, using significant unobservable inputs (Level 3) (in millions, unaudited):
		Level 3
	Balance at January 1, 2015	$	90
	Purchases of securities (1)	908
	Balance at March 31, 2015	$	998
	(1)	Purchases of securities included our $900 million investment in SpaceX, a space exploration and space transport company, made during January 2015.
Schedule of Unrealized Loss on Investments	The following tables present gross unrealized losses and fair values for those marketable investments that were in an unrealized loss position as of December 31, 2014 and March 31, 2015, aggregated by investment category and the length of time that individual securities have been in a continuous loss position (in millions):
			As of December 31, 2014
			Less than 12 Months								12 Months or Greater								Total
			Fair Value				Unrealized				Fair Value				Unrealized				Fair Value			Unrealized
							Loss								Loss							Loss
	U.S. government notes		$	4,490			$	(4	)		$	0			$	0			$	4,490		$	(4	)
	U.S. government agencies		830				(1		)		0				0				830			(1		)
	Foreign government bonds		255				(7		)		43				(3		)		298			(10		)
	Municipal securities		877				(3		)		174				(3		)		1,051			(6		)
	Corporate debt securities		5,851				(112		)		225				(10		)		6,076			(122		)
	Agency residential mortgage-backed securities		609				(1		)		2,168				(41		)		2,777			(42		)
	Asset-backed securities		2,388				(4		)		174				(1		)		2,562			(5		)
	Fixed-income bond funds		347				(38		)		0				0				347			(38		)
	Marketable equity securities		690				(64		)		0				0				690			(64		)
	Total		$	16,337			$	(234	)		$	2,784			$	(58	)		$	19,121		$	(292	)
			As of March 31, 2015
			Less than 12 Months								12 Months or Greater								Total
			Fair Value				Unrealized				Fair Value				Unrealized				Fair Value			Unrealized
							Loss								Loss							Loss
											(unaudited)
	Foreign government bonds		$	366			$	(4	)		$	23			$	(1	)		$	389		$	(5	)
	Municipal securities		930				(3		)		19				(1		)		949			(4		)
	Corporate debt securities		3,266				(59		)		126				(5		)		3,392			(64		)
	Agency residential mortgage-backed securities		798				(3		)		1,246				(19		)		2,044			(22		)
	Asset-backed securities		1,941				(2		)		0				0				1,941			(2		)
	Fixed-income bond funds		319				(51		)		0				0				319			(51		)
	Total		$	7,620			$	(122	)		$	1,414			$	(26	)		$	9,034		$	(148	)
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The fair values of our outstanding derivative instruments were as follows (in millions):
				As of December 31, 2014
		Balance Sheet Location		Fair Value of				Fair Value of				Total Fair
				Derivatives				Derivatives Not				Value
				Designated as				Designated as
				Hedging Instruments				Hedging Instruments
	Derivative Assets:
	Level 2:
	Foreign exchange contracts	Prepaid revenue share, expenses and other assets, current and non-current		$	851			$	0			$	851
	Interest rate contracts	Prepaid revenue share, expenses and other assets, current and non-current		1				0				1
	Total			$	852			$	0			$	852
	Derivative Liabilities:
	Level 2:
	Foreign exchange contracts	Accrued expenses and other current liabilities		$	0			$	3			$	3
	Interest rate contracts	Accrued expenses and other liabilities, current and non-current		1				0				1
	Total			$	1			$	3			$	4
				As of March 31, 2015
		Balance Sheet Location		Fair Value of				Fair Value of				Total Fair
				Derivatives				Derivatives Not				Value
				Designated as				Designated as
				Hedging Instruments				Hedging Instruments
				(unaudited)
	Derivative Assets:
	Level 2:
	Foreign exchange contracts	Prepaid revenue share, expenses and other assets, current and non-current		$	1,265			$	4			$	1,269
	Total			$	1,265			$	4			$	1,269
	Derivative Liabilities:
	Level 2:
	Foreign exchange contracts	Accrued expenses and other current liabilities		$	17			$	2			$	19
	Interest rate contracts	Accrued expenses and other liabilities, current and non-current		2				1				3
	Total			$	19			$	3			$	22
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance	The effect of derivative instruments in cash flow hedging relationships on income and other comprehensive income (OCI) is summarized below (in millions):
		Gains (Losses) Recognized in OCI on Derivatives Before Tax Effect (Effective Portion)
		Three Months Ended
		March 31,
	Derivatives in Cash Flow Hedging Relationship	2014				2015
		(unaudited)
	Foreign exchange contracts	$	13			$	836
	Interest rate contracts	(31		)		0
	Total	$	(18	)		$	836
		Gains Reclassified from AOCI into Income (Effective Portion)
				Three Months Ended
				March 31,
	Derivatives in Cash Flow Hedging Relationship	Income Statement Location		2014				2015
				(unaudited)
	Foreign exchange contracts	Revenues		$	8			$	311
	Interest rate contracts	Interest and other income, net		0				1
	Total			$	8			$	312
		Gains (Losses) Recognized in Income on Derivatives (1)
		(Amount Excluded from  Effectiveness Testing and
		Ineffective Portion)
				Three Months Ended
				March 31,
	Derivatives in Cash Flow Hedging Relationship	Income Statement Location		2014				2015
				(unaudited)
	Foreign exchange contracts	Interest and		$	(67	)		$	(101	)
		other income, net
	Interest rate contracts	Interest and other income, net		4				0
	Total			$	(63	)		$	(101	)
	(1)	Gains (losses) related to the ineffective portion of the hedges were not material in all periods presented.
	The effect of derivative instruments in fair value hedging relationships on income is summarized below (in millions):
		Gains (Losses) Recognized in Income on Derivatives(2)
				Three Months Ended
				March 31,
	Derivatives in Fair Value Hedging Relationship	Income Statement Location		2014				2015
				(unaudited)
	Foreign Exchange Hedges:
	Foreign exchange contracts	Interest and		$	(2	)		$	111
		other income, net
	Hedged item	Interest and		0				(113		)
		other income, net
	Total			$	(2	)		$	(2	)
	Interest Rate Hedges:
	Interest rate contracts	Interest and other income, net		$	0			$	(2	)
	Hedged item	Interest and other income, net		0				2
	Total			$	0			$	0
	(2)	Losses related to the amount excluded from effectiveness testing of the hedges were $2 million and $2 million for the three months ended March 31, 2014 and 2015.
	The effect of derivative instruments not designated as hedging instruments on income is summarized below (in millions):
		Gains (Losses) Recognized in Income on Derivatives
				Three Months Ended
				March 31,
	Derivatives Not Designated As Hedging Instruments	Income Statement Location		2014				2015
				(unaudited)
	Foreign exchange contracts	Interest and		$	(37	)		$	157
		other income, net and net loss from discontinued operations
	Interest rate contracts	Interest and		1				(7		)
		other income, net
	Total			$	(36	)		$	150
Offsetting Assets	As of December 31, 2014 and March 31, 2015, information related to these offsetting arrangements was as follows (in millions):
	Offsetting of Assets
		As of December 31, 2014
														Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset
	Description	Gross Amounts of Recognized Assets				Gross Amounts Offset in the Consolidated Balance Sheets				Net Presented in the Consolidated Balance Sheets				Financial Instruments				Cash Collateral Received			Non-Cash Collateral Received				Net Assets Exposed
	Derivatives	$	852			$	0			$	852			$	(1	)	(1)	$	(251	)	$	(412	)		$	188
	Reverse repurchase agreements	2,637				0				2,637			(2)	0				0			(2,637		)		0
	Total	$	3,489			$	0			$	3,489			$	(1	)		$	(251	)	$	(3,049	)		$	188
		As of March 31, 2015
														Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset
	Description	Gross Amounts of Recognized Assets				Gross Amounts Offset in the Consolidated Balance Sheets				Net Presented in the Consolidated Balance Sheets				Financial Instruments				Cash Collateral Received			Non-Cash Collateral Received				Net Assets Exposed
		(unaudited)
	Derivatives	$	1,269			$	0			$	1,269			$	(1	)	(1)	$	(302	)	$	(818	)		$	148
	Reverse repurchase agreements	1,635				0				1,635			(2)	0				0			(1,635		)		0
	Total	$	2,904			$	0			$	2,904			$	(1	)		$	(302	)	$	(2,453	)		$	148
	(1)	The balances as of December 31, 2014 and March 31, 2015 were related to derivative liabilities which are allowed to be net settled against derivative assets in accordance with our master netting agreements.
	(2)	The balances as of December 31, 2014 and March 31, 2015 included $1,762 million and $810 million recorded in cash and cash equivalents, respectively, and $875 million and $825 million recorded in receivable under reverse repurchase agreements, respectively.
Offsetting Liabilities
	Offsetting of Liabilities
		As of December 31, 2014
														Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset
	Description	Gross Amounts of Recognized Liabilities				Gross Amounts Offset in the Consolidated Balance Sheets				Net Presented in the Consolidated Balance Sheets				Financial Instruments				Cash Collateral Pledged			Non-Cash Collateral Pledged				Net Liabilities
	Derivatives	$	4			$	0			$	4			$	(1	)	(3)	$	0		$	0			$	3
	Securities lending agreements	2,778				0				2,778				0				0			(2,740		)		38
	Total	$	2,782			$	0			$	2,782			$	(1	)		$	0		$	(2,740	)		$	41
		As of March 31, 2015
														Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset
	Description	Gross Amounts of Recognized Liabilities				Gross Amounts Offset in the Consolidated Balance Sheets				Net Presented in the Consolidated Balance Sheets				Financial Instruments				Cash Collateral Pledged			Non-Cash Collateral Pledged				Net Liabilities
		(unaudited)
	Derivatives	$	22			$	0			$	22			$	(1	)	(3)	$	(1	)	$	0			$	20
	Securities lending agreements	1,657				0				1,657				0				0			(1,643		)		14
	Total	$	1,679			$	0			$	1,679			$	(1	)		$	(1	)	$	(1,643	)		$	34
	(3)	The balances as of December 31, 2014 and March 31, 2015 were related to derivative assets which are allowed to be net settled against derivative liabilities in accordance with our master netting agreements.

Debt_Tables

Debt (Tables)	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments
		As of			As of
		31-Dec-14			31-Mar-15
					(unaudited)
	Short-Term Portion of Long-Term Debt
	Capital Lease Obligation	$	10		$	9
	Total	$	10		$	9
	Long-Term Debt
	2.125% Notes due on May 19, 2016	$	1,000		$	1,000
	3.625% Notes due on May 19, 2021	1,000			1,000
	3.375% Notes due on February 25, 2024	1,000			1,000
	Unamortized discount for the Notes above	(8		)	(7		)
	Subtotal	2,992			2,993
	Capital Lease Obligation	236			233
	Total	$	3,228		$	3,226

Balance_Sheet_Components_Table

Balance Sheet Components (Tables)	3 Months Ended
	Mar. 31, 2015
Balance Sheet Components Disclosure [Abstract]
Property and Equipment	Property and equipment consisted of the following (in millions):
		As of				As of
		31-Dec-14				31-Mar-15
						(unaudited)
	Information technology assets	$	10,918			$	11,855
	Land and buildings	13,326				13,479
	Construction in progress	6,555				7,415
	Leasehold improvements	1,868				2,016
	Furniture and fixtures	79				78
	Property and equipment, gross	32,746				34,843
	Less: accumulated depreciation and amortization	(8,863		)		(9,395		)
	Property and equipment, net	$	23,883			$	25,448
Schedule of Notes Receivable	Based on the general market conditions and the credit quality of Lenovo, we discounted the Note Receivable at an effective interest rate of 4.5% as shown in the table below (in millions):
		As of				As of
		31-Dec-14				31-Mar-15
						(unaudited)
	Principal of the Note Receivable	$	1,500			$	1,500
	Less: unamortized discount for the Note Receivable	(175		)		(160		)
	Total	$	1,325			$	1,340
Components of Accumulated Other Comprehensive Income	The components of AOCI, net of tax, were as follows (in millions, unaudited):
		Foreign Currency Translation Adjustments				Unrealized Gains (Losses) on Available-for-Sale Investments				Unrealized Gains on Cash Flow Hedges			Total
	Balance as of December 31, 2013	$	16			$	50			$	59		$	125
	Other comprehensive income before reclassifications	65				217				10			292
	Amounts reclassified from AOCI	0				(67		)		(5		)	(72		)
	Other comprehensive income	65				150				5			220
	Balance as of March 31, 2014	$	81			$	200			$	64		$	345
		Foreign Currency Translation Adjustments				Unrealized Gains (Losses) on Available-for-Sale Investments				Unrealized Gains on Cash Flow Hedges			Total
	Balance as of December 31, 2014	$	(980	)		$	421			$	586		$	27
	Other comprehensive income (loss) before reclassifications	(923		)		221				562			(140		)
	Amounts reclassified from AOCI	0				(27		)		(231		)	(258		)
	Other comprehensive income (loss)	(923		)		194				331			(398		)
	Balance as of March 31, 2015	$	(1,903	)		$	615			$	917		$	(371	)
Schedule of Effect on Net Income of Amounts Reclassified from Accumulated OCI	The effects on net income of amounts reclassified from AOCI were as follows (in millions, unaudited):
					Gains (Losses) Reclassified from AOCI to the Consolidated Statement of Income
					Three Months Ended March 31,
	AOCI Components		Location		2014				2015
	Unrealized gains on available-for-sale investments
			Interest and other income, net		$	74			$	32
			Provision for income taxes		(7		)		(5		)
			Net of tax		$	67			$	27
	Unrealized gains on cash flow hedges
	Foreign exchange contracts		Revenue		$	8			$	311
	Interest rate contracts		Interest and other income, net		0				1
			Provision for income taxes		(3		)		(81		)
			Net of tax		$	5			$	231
	Total amount reclassified, net of tax				$	72			$	258

Goodwill_and_Other_Intangible_1

Goodwill and Other Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The changes in the carrying amount of goodwill for the three months ended March 31, 2015 were as follows (in millions, unaudited):
	Balance as of December 31, 2014	$	15,599
	Goodwill acquired	17
	Goodwill adjustment	(43		)
	Balance as of March 31, 2015	$	15,573
Schedule of Acquired Finite-Lived Intangible Assets by Major Class	Information regarding our purchased intangible assets was as follows (in millions):
		As of December 31, 2014
		Gross			Accumulated		Net
		Carrying			Amortization		Carrying
		Amount					Value
	Patents and developed technology	$	6,547		$	2,513	$	4,034
	Customer relationships	1,410			1,168		242
	Trade names and other	696			365		331
	Total	$	8,653		$	4,046	$	4,607
		As of March 31, 2015
		Gross			Accumulated		Net
		Carrying			Amortization		Carrying
		Amount					Value
		(unaudited)
	Patents and developed technology	$	6,510		$	2,697	$	3,813
	Customer relationships	1,396			1,199		197
	Trade names and other	729			359		370
	Total	$	8,635		$	4,255	$	4,380
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	As of March 31, 2015, expected amortization expense relating to purchased intangible assets for each of the next five years and thereafter was as follows (in millions, unaudited):
	Remainder of 2015	$	649
	2016	791
	2017	714
	2018	631
	2019	522
	Thereafter	1,073
		$	4,380

Discontinued_Operations_Tables

Discontinued Operations (Tables) (Motorola Mobile)	3 Months Ended
	Mar. 31, 2015
Motorola Mobile
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Schedule of Financial Results and Aggregate Carrying Amounts of Major Assets and Liabilities of Businesses Disposed of	The following table presents financial results of the Motorola Mobile business for the three months ended March 31, 2014, which were presented as Net loss from discontinued operations (in millions, unaudited):
		Three Months Ended
		March 31,
		2014
	Revenues	$	1,377
	Loss from discontinued operations before income taxes	(274		)
	Benefits from income taxes	76
	Net loss from discontinued operations	$	(198	)

Interest_and_Other_Income_Net_

Interest and Other Income, Net (Tables)	3 Months Ended
	Mar. 31, 2015
Other Income and Expenses [Abstract]
Schedule of Other Nonoperating Income (Expense)	The components of Interest and other income, net, were as follows (in millions, unaudited):
		Three Months Ended
		March 31,
		2014			2015
	Interest income	$	168		$	226
	Interest expense	(24		)	(26		)
	Realized gains on available-for-sale investments, net	74			32
	Foreign currency exchange losses, net	(109		)	(62		)
	Realized gain on equity interest	103			0
	Realized gain on non-marketable investments	117			0
	Other income (expense), net	28			(13		)
	Interest and other income, net	$	357		$	157

Net_Income_Per_Share_Tables

Net Income Per Share (Tables)	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Schedule of Calculation of Numerator and Denominator in Earnings Per Share	The following table sets forth the computation of basic and diluted net income per share of Class A and Class B common stock and Class C capital stock (in millions, except share amounts which are reflected in thousands and per share amounts):
		Three Months Ended March 31,
		2014									2015
		(unaudited)
		Class A			Class B			Class C			Class A			Class B			Class C
	Basic net income (loss) per share:
	Numerator
	Allocation of undistributed earnings - continuing operations	$	1,521		$	304		$	1,825		$	1,512		$	278		$	1,796
	Allocation of undistributed earnings - discontinued operations	(83		)	(16		)	(99		)	—			—			—
	Total	$	1,438		$	288		$	1,726		$	1,512		$	278		$	1,796
	Denominator
	Number of shares used in per share computation	280,202			56,091			336,293			287,043			52,846			341,026
	Basic net income (loss) per share:
	Continuing operations	$	5.42		$	5.42		$	5.42		$	5.27		$	5.27		$	5.27
	Discontinued operations	(0.29		)	(0.29		)	(0.29		)	—			—			—
	Basic net income per share	$	5.13		$	5.13		$	5.13		$	5.27		$	5.27		$	5.27
	Diluted net income (loss) per share:
	Numerator
	Allocation of undistributed earnings for basic computation - continuing operations	$	1,521		$	304		$	1,825		$	1,512		$	278		$	1,796
	Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	304			—			—			278			—			—
	Reallocation of undistributed earnings	—			(5		)	—			(8		)	(3		)	8
	Allocation of undistributed earnings - continuing operations	$	1,825		$	299		$	1,825		$	1,782		$	275		$	1,804
	Allocation of undistributed earnings for basic computation - discontinued operations	$	(83	)	$	(16	)	$	(99	)	$	—		$	—		$	—
	Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	(16		)	—			—			—			—			—
	Reallocation of undistributed earnings	—			—			—			—			—			—
	Allocation of undistributed earnings - discontinued operations	$	(99	)	$	(16	)	$	(99	)	$	—		$	—		$	—
	Denominator
	Number of shares used in basic computation	280,202			56,091			336,293			287,043			52,846			341,026
	Weighted-average effect of dilutive securities
	Add:
	Conversion of Class B to Class A common shares outstanding	56,091			—			—			52,846			—			—
	Employee stock options	2,419			—			2,419			1,694			—			1,650
	Restricted stock units and other contingently issuable shares	3,894			—			3,894			1,045			—			4,194
	Number of shares used in per share computation	342,606			56,091			342,606			342,628			52,846			346,870
	Diluted net income (loss) per share:
	Continuing operations	$	5.33		$	5.33		$	5.33		$	5.2		$	5.2		$	5.2
	Discontinued operations	(0.29		)	(0.29		)	(0.29		)	—			—			—
	Diluted net income per share	$	5.04		$	5.04		$	5.04		$	5.2		$	5.2		$	5.2

Stockholders_Equity_Tables

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Schedule of Share-based Compensation, Stock Options, Activity	The following table summarizes the activities for our stock options for the three months ended March 31, 2015:
		Options Outstanding
		Number of		Weighted-		Weighted-	Aggregate
		Shares		Average		Average	Intrinsic
				Exercise Price		Remaining	Value
						Contractual	(in millions) (1)
						Term
						(in years)
		(unaudited)
	Balance as of December 31, 2014	7,240,419		$	215.56
	Granted	0		N/A
	Exercised	(619,179	)	$	179.33
	Forfeited/canceled	(4,153	)	$	312.03
	Balance as of March 31, 2015	6,617,087		$	218.88	4.2	$	2,200
	Exercisable as of March 31, 2015	5,681,295		$	203.22	3.8	$	1,978
	Exercisable as of March 31, 2015 and expected to vest thereafter (2)	5,901,780		$	217.4	4.2	$	2,176
	(1)	The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying awards and the closing stock price of $554.70 and $548.00 for our Class A common stock and Class C capital stock, respectively, on March 31, 2015.
	(2)	Options expected to vest reflect an estimated forfeiture rate.
Schedule of Share-based Compensation, Restricted Stock Units Award Activity	The following table summarizes the activities for our unvested restricted stock units (RSUs) for the three months ended March 31, 2015:
		Unvested Restricted Stock Units
		Number of		Weighted-
		Shares		Average
				Grant-Date
				Fair Value
		(unaudited)
	Unvested as of December 31, 2014	24,619,549		$	487.8
	Granted	1,233,138		$	527.84
	Vested	(2,617,997	)	$	434.04
	Forfeited/canceled	(378,918	)	$	479.95
	Unvested as of March 31, 2015	22,855,772		$	496.25
	Expected to vest after March 31, 2015 (1)	20,385,063		$	496.25
	(1)	RSUs expected to vest reflect an estimated forfeiture rate.

Information_about_Segments_and1

Information about Segments and Geographic Areas (Tables)	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Schedule of Revenue from External Customers and Long-lived Assets by Geographical Areas	The following tables set forth revenues and long-lived assets by geographic area (in millions):
		Three Months Ended
		March 31,
		2014		2015
		(unaudited)
	Revenues:
	United States	$	6,656	$	7,388
	United Kingdom	1,583		1,675
	Rest of the world	7,181		8,195
	Total revenues	$	15,420	$	17,258
		As of December 31, 2014		As of
				31-Mar-15
				(unaudited)
	Long-lived assets:
	United States	$	37,355	$	40,136
	International	13,093		12,951
	Total long-lived assets	$	50,448	$	53,087

Financial_Instruments_Cash_Cas

Financial Instruments (Cash, Cash Equivalents and Marketable Securities Measured at Adjusted Cost, Gross Unrealized Gains, Gross Unrealized Losses, and Fair Value By Significant Investment Category) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
In Millions, unless otherwise specified
Cash, cash equivalents and marketable securities [Line Items]
Adjusted Cost	$64,719	$63,935
Gross Unrealized Gains	865	752
Gross Unrealized Losses	-148	-292
Fair Value	65,436	64,395
Cash and Cash Equivalents	16,976	18,347	16,639
Marketable Securities	48,460	46,048
Cash
Cash, cash equivalents and marketable securities [Line Items]
Adjusted Cost	10,929	9,863
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	10,929	9,863
Cash and Cash Equivalents	10,929	9,863
Marketable Securities	0	0
Level 1
Cash, cash equivalents and marketable securities [Line Items]
Adjusted Cost	17,820	18,840
Gross Unrealized Gains	472	465
Gross Unrealized Losses	0	-68
Fair Value	18,292	19,237
Cash and Cash Equivalents	2,459	3,660
Marketable Securities	15,833	15,577
Level 1 | Money market and other funds
Cash, cash equivalents and marketable securities [Line Items]
Adjusted Cost	2,451	2,532
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	2,451	2,532
Cash and Cash Equivalents	2,451	2,532
Marketable Securities	0	0
Level 1 | U.S. government notes
Cash, cash equivalents and marketable securities [Line Items]
Adjusted Cost	14,385	15,320
Gross Unrealized Gains	93	37
Gross Unrealized Losses	0	-4
Fair Value	14,478	15,353
Cash and Cash Equivalents	8	1,128
Marketable Securities	14,470	14,225
Level 1 | Marketable equity securities
Cash, cash equivalents and marketable securities [Line Items]
Adjusted Cost	984	988
Gross Unrealized Gains	379	428
Gross Unrealized Losses	0	-64
Fair Value	1,363	1,352
Cash and Cash Equivalents	0	0
Marketable Securities	1,363	1,352
Level 2
Cash, cash equivalents and marketable securities [Line Items]
Adjusted Cost	35,970	35,232
Gross Unrealized Gains	393	287
Gross Unrealized Losses	-148	-224
Fair Value	36,215	35,295
Cash and Cash Equivalents	3,588	4,824
Marketable Securities	32,627	30,471
Level 2 | Money market and other funds
Cash, cash equivalents and marketable securities [Line Items]
Adjusted Cost	810	1,762
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	810	1,762
Cash and Cash Equivalents	810	1,762
Marketable Securities	0	0
Level 2 | Fixed-income Bond Funds
Cash, cash equivalents and marketable securities [Line Items]
Adjusted Cost	370	385
Gross Unrealized Gains	0	0
Gross Unrealized Losses	-51	-38
Fair Value	319	347
Cash and Cash Equivalents	0	0
Marketable Securities	319	347
Level 2 | Time deposits
Cash, cash equivalents and marketable securities [Line Items]
Adjusted Cost	2,798	2,409
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	2,798	2,409
Cash and Cash Equivalents	2,771	2,309
Marketable Securities	27	100
Level 2 | U.S. government agencies
Cash, cash equivalents and marketable securities [Line Items]
Adjusted Cost	1,973	2,327
Gross Unrealized Gains	14	8
Gross Unrealized Losses	0	-1
Fair Value	1,987	2,334
Cash and Cash Equivalents	0	750
Marketable Securities	1,987	1,584
Level 2 | Foreign government bonds
Cash, cash equivalents and marketable securities [Line Items]
Adjusted Cost	1,914	1,828
Gross Unrealized Gains	27	22
Gross Unrealized Losses	-5	-10
Fair Value	1,936	1,840
Cash and Cash Equivalents	0	0
Marketable Securities	1,936	1,840
Level 2 | Municipal securities
Cash, cash equivalents and marketable securities [Line Items]
Adjusted Cost	3,679	3,370
Gross Unrealized Gains	38	33
Gross Unrealized Losses	-4	-6
Fair Value	3,713	3,397
Cash and Cash Equivalents	7	3
Marketable Securities	3,706	3,394
Level 2 | Corporate debt securities
Cash, cash equivalents and marketable securities [Line Items]
Adjusted Cost	12,645	11,499
Gross Unrealized Gains	178	114
Gross Unrealized Losses	-64	-122
Fair Value	12,759	11,491
Cash and Cash Equivalents	0	0
Marketable Securities	12,759	11,491
Level 2 | Agency residential mortgage-backed securities
Cash, cash equivalents and marketable securities [Line Items]
Adjusted Cost	8,161	8,196
Gross Unrealized Gains	133	109
Gross Unrealized Losses	-22	-42
Fair Value	8,272	8,263
Cash and Cash Equivalents	0	0
Marketable Securities	8,272	8,263
Level 2 | Asset-backed securities
Cash, cash equivalents and marketable securities [Line Items]
Adjusted Cost	3,620	3,456
Gross Unrealized Gains	3	1
Gross Unrealized Losses	-2	-5
Fair Value	3,621	3,452
Cash and Cash Equivalents	0	0
Marketable Securities	$3,621	$3,452

Financial_Instruments_Contract

Financial Instruments (Contractual Maturity Date of Marketable Debt Securities) (Details) (USD $)	Mar. 31, 2015
In Millions, unless otherwise specified
Fair Value Disclosures [Abstract]
Due in 1 year	$6,279
Due in 1 year through 5 years	24,805
Due in 5 years through 10 years	6,943
Due after 10 years	8,751
Total	$46,778

Financial_Instruments_Gross_Un

Financial Instruments (Gross Unrealized Losses and Fair Values for Investments in Unrealized Loss Position) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Investments, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	$7,620	$16,337
Less than 12 Months, Unrealized Loss	-122	-234
12 Months or Greater, Fair Value	1,414	2,784
12 Months or Greater, Unrealized Loss	-26	-58
Total Fair Value	9,034	19,121
Total Unrealized Loss	-148	-292
US government notes
Investments, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value		4,490
Less than 12 Months, Unrealized Loss		-4
12 Months or Greater, Fair Value		0
12 Months or Greater, Unrealized Loss		0
Total Fair Value		4,490
Total Unrealized Loss		-4
U.S. government agencies
Investments, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value		830
Less than 12 Months, Unrealized Loss		-1
12 Months or Greater, Fair Value		0
12 Months or Greater, Unrealized Loss		0
Total Fair Value		830
Total Unrealized Loss		-1
Foreign government bonds
Investments, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	366	255
Less than 12 Months, Unrealized Loss	-4	-7
12 Months or Greater, Fair Value	23	43
12 Months or Greater, Unrealized Loss	-1	-3
Total Fair Value	389	298
Total Unrealized Loss	-5	-10
Municipal securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	930	877
Less than 12 Months, Unrealized Loss	-3	-3
12 Months or Greater, Fair Value	19	174
12 Months or Greater, Unrealized Loss	-1	-3
Total Fair Value	949	1,051
Total Unrealized Loss	-4	-6
Corporate debt securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	3,266	5,851
Less than 12 Months, Unrealized Loss	-59	-112
12 Months or Greater, Fair Value	126	225
12 Months or Greater, Unrealized Loss	-5	-10
Total Fair Value	3,392	6,076
Total Unrealized Loss	-64	-122
Agency residential mortgage-backed securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	798	609
Less than 12 Months, Unrealized Loss	-3	-1
12 Months or Greater, Fair Value	1,246	2,168
12 Months or Greater, Unrealized Loss	-19	-41
Total Fair Value	2,044	2,777
Total Unrealized Loss	-22	-42
Asset-backed securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	1,941	2,388
Less than 12 Months, Unrealized Loss	-2	-4
12 Months or Greater, Fair Value	0	174
12 Months or Greater, Unrealized Loss	0	-1
Total Fair Value	1,941	2,562
Total Unrealized Loss	-2	-5
Fixed-income Bond Funds
Investments, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	319	347
Less than 12 Months, Unrealized Loss	-51	-38
12 Months or Greater, Fair Value	0	0
12 Months or Greater, Unrealized Loss	0	0
Total Fair Value	319	347
Total Unrealized Loss	-51	-38
Marketable equity securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value		690
Less than 12 Months, Unrealized Loss		-64
12 Months or Greater, Fair Value		0
12 Months or Greater, Unrealized Loss		0
Total Fair Value		690
Total Unrealized Loss		($64)

Financial_Instruments_Schedule

Financial Instruments (Schedule of Other Investments Not Readily Marketable) (Details) (Level 3, USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015
Other Investments Not Readily Marketable [Roll Forward]
Balance at January 1, 2015	$90
Purchases of securities (1)	908
Balance at March 31, 2015	998
SpaceX
Other Investments Not Readily Marketable [Roll Forward]
Purchases of securities (1)	$900

Financial_Instruments_Fair_Val

Financial Instruments (Fair Values of Outstanding Derivative Instruments) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Derivative Assets:
Derivative Assets	$1,269	$852
Derivative Liabilities:
Derivative Liabilities	22	4
Level 2 | Foreign exchange contracts | Prepaid revenue share, expenses and other assets, current and non-current
Derivative Assets:
Derivative Assets	1,269	851
Level 2 | Foreign exchange contracts | Accrued expenses and other current liabilities
Derivative Liabilities:
Derivative Liabilities	19	3
Level 2 | Interest rate contracts | Prepaid revenue share, expenses and other assets, current and non-current
Derivative Assets:
Derivative Assets		1
Level 2 | Interest rate contracts | Accrued expenses and other liabilities, current and non-current
Derivative Liabilities:
Derivative Liabilities	3	1
Fair Value of Derivatives Designated as Hedging Instruments
Derivative Assets:
Derivative Assets	1,265	852
Derivative Liabilities:
Derivative Liabilities	19	1
Fair Value of Derivatives Designated as Hedging Instruments | Level 2 | Foreign exchange contracts | Prepaid revenue share, expenses and other assets, current and non-current
Derivative Assets:
Derivative Assets	1,265	851
Fair Value of Derivatives Designated as Hedging Instruments | Level 2 | Foreign exchange contracts | Accrued expenses and other current liabilities
Derivative Liabilities:
Derivative Liabilities	17	0
Fair Value of Derivatives Designated as Hedging Instruments | Level 2 | Interest rate contracts | Prepaid revenue share, expenses and other assets, current and non-current
Derivative Assets:
Derivative Assets		1
Fair Value of Derivatives Designated as Hedging Instruments | Level 2 | Interest rate contracts | Accrued expenses and other liabilities, current and non-current
Derivative Liabilities:
Derivative Liabilities	2	1
Derivatives Not Designated as Hedging Instruments
Derivative Assets:
Derivative Assets	4	0
Derivative Liabilities:
Derivative Liabilities	3	3
Derivatives Not Designated as Hedging Instruments | Level 2 | Foreign exchange contracts | Prepaid revenue share, expenses and other assets, current and non-current
Derivative Assets:
Derivative Assets	4	0
Derivatives Not Designated as Hedging Instruments | Level 2 | Foreign exchange contracts | Accrued expenses and other current liabilities
Derivative Liabilities:
Derivative Liabilities	2	3
Derivatives Not Designated as Hedging Instruments | Level 2 | Interest rate contracts | Prepaid revenue share, expenses and other assets, current and non-current
Derivative Assets:
Derivative Assets		0
Derivatives Not Designated as Hedging Instruments | Level 2 | Interest rate contracts | Accrued expenses and other liabilities, current and non-current
Derivative Liabilities:
Derivative Liabilities	$1	$0

Financial_Instruments_Effect_o

Financial Instruments (Effect of Derivative Instruments on Income and Accumulated Other Comprehensive Income) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Recognized in OCI on Derivatives Before Tax Effect (Effective Portion)	$836	($18)
Gains Reclassified from AOCI into Income (Effective Portion)	312	8
Gains (Losses) Recognized in Income on Derivatives (Amount Excluded from Effectiveness Testing and Ineffective Portion)	-101	-63
Derivatives in Cash Flow Hedging Relationship | Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Recognized in OCI on Derivatives Before Tax Effect (Effective Portion)	836	13
Derivatives in Cash Flow Hedging Relationship | Foreign exchange contracts | Revenues
Derivative Instruments, Gain (Loss) [Line Items]
Gains Reclassified from AOCI into Income (Effective Portion)	311	8
Derivatives in Cash Flow Hedging Relationship | Foreign exchange contracts | Interest and other income, net
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Recognized in Income on Derivatives (Amount Excluded from Effectiveness Testing and Ineffective Portion)	-101	-67
Derivatives in Cash Flow Hedging Relationship | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Recognized in OCI on Derivatives Before Tax Effect (Effective Portion)	0	-31
Derivatives in Cash Flow Hedging Relationship | Interest rate contracts | Interest and other income, net
Derivative Instruments, Gain (Loss) [Line Items]
Gains Reclassified from AOCI into Income (Effective Portion)	1	0
Gains (Losses) Recognized in Income on Derivatives (Amount Excluded from Effectiveness Testing and Ineffective Portion)	0	4
Derivatives in Fair Value Hedging Relationship | Interest and other income, net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	2	2
Derivatives in Fair Value Hedging Relationship | Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Recognized in Income on Derivatives - Total	-2	-2
Derivatives in Fair Value Hedging Relationship | Foreign exchange contracts | Interest and other income, net
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Recognized in Income on Derivatives - Foreign exchange contracts	111	-2
Gains (Losses) Recognized in Income on Derivatives - Hedged item	-113	0
Derivatives in Fair Value Hedging Relationship | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Recognized in Income on Derivatives - Total	0	0
Derivatives in Fair Value Hedging Relationship | Interest rate contracts | Interest and other income, net
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Recognized in Income on Derivatives - Foreign exchange contracts	-2	0
Gains (Losses) Recognized in Income on Derivatives - Hedged item	2	0
Derivatives Not Designated as Hedging Instruments
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Recognized in Income on Derivatives	150	-36
Derivatives Not Designated as Hedging Instruments | Foreign exchange contracts | Interest and other income, net and net loss from discontinued operations
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Recognized in Income on Derivatives	157	-37
Derivatives Not Designated as Hedging Instruments | Interest rate contracts | Interest and other income, net
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Recognized in Income on Derivatives	($7)	$1

Financial_Instruments_Offsetti

Financial Instruments (Offsetting of Financial Assets and Financial Liabilities) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Derivative Assets [Abstract]
Derivatives - Gross Amounts of Recognized Assets	$1,269	$852
Derivatives - Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Derivatives - Net Presented in the Consolidated Balance Sheets	1,269	852
Derivatives - Financial Instruments	-1	-1
Derivatives - Gross Amounts Not Offset in the Consolidated Balance Sheets - Cash Collateral Received	-302	-251
Derivatives - Gross Amounts Not Offset in the Consolidated Balance Sheets - Non-Cash Collateral Received	-818	-412
Derivatives - Net Assets Exposed	148	188
Offsetting Securities Purchased under Agreements to Resell and Securities Borrowed [Abstract]
Reverse repurchase agreements - Gross Amounts of Recognized Assets	1,635	2,637
Reverse repurchase agreements - Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Reverse repurchase agreements - Net Presented in the Consolidated Balance Sheets	1,635	2,637
Reverse repurchase agreements - Gross Amounts Not Offset in the Consolidated Balance Sheets - Financial Instruments	0	0
Reverse repurchase agreements - Gross Amounts Not Offset in the Consolidated Balance Sheets - Cash Collateral Received	0	0
Reverse repurchase agreements - Gross Amounts Not Offset in the Consolidated Balance Sheets - Non-Cash Collateral Received	-1,635	-2,637
Reverse repurchase agreements - Net Assets Exposed	0	0
Offsetting Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed [Abstract]
Total - Gross Amounts of Recognized Assets	2,904	3,489
Total - Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Total - Net Presented in the Consolidated Balance Sheets	2,904	3,489
Total - Gross Amounts Not Offset in the Consolidated Balance Sheets - Financial Instruments	-1	-1
Total - Gross Amounts Not Offset in the Consolidated Balance Sheets - Cash Collateral Received	-302	-251
Total - Gross Amounts Not Offset in the Consolidated Balance Sheets - Non-Cash Collateral Received	-2,453	-3,049
Total - Net Assets Exposed	148	188
Offsetting Derivative Liabilities [Abstract]
Derivatives - Gross Amounts of Recognized Liabilities	22	4
Derivatives - Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Derivatives - Net Presented in the Consolidated Balance Sheets	22	4
Derivatives - Gross Amounts Not Offset in the Consolidated Balance Sheets - Financial Instruments	-1	-1
Derivatives - Gross Amounts Not Offset in the Consolidated Balance Sheets - Cash Collateral Pledged	-1	0
Derivatives - Gross Amounts Not Offset in the Consolidated Balance Sheets - Non-Cash Collateral Pledged	0	0
Derivatives - Net Liabilities	20	3
Offsetting Securities Loaned [Abstract]
Securities lending agreements - Gross Amounts of Recognized Liabilities	1,657	2,778
Securities lending agreements - Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Securities lending agreements - Net Presented in the Consolidated Balance Sheets	1,657	2,778
Securities lending agreements - Gross Amounts Not Offset in the Consolidated Balance Sheets - Financial Instruments	0	0
Securities lending agreements - Gross Amounts Not Offset in the Consolidated Balance Sheets - Cash Collateral Pledged	0	0
Securities lending agreements - Gross Amounts Not Offset in the Consolidated Balance Sheets - Non-Cash Collateral Pledged	-1,643	-2,740
Securities lending agreements - Net Liabilities	14	38
Offsetting Derivative Liability, Securities Sold under Agreements to Resell, Securities Loaned [Abstract]
Total - Gross Amounts of Recognized Liabilities	1,679	2,782
Total - Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Total - Net Presented in the Consolidated Balance Sheets	1,679	2,782
Total - Gross Amounts Not Offset in the Consolidated Balance Sheets - Financial Instruments	-1	-1
Total - Gross Amounts Not Offset in the Consolidated Balance Sheets - Cash Collateral Pledged	-1	0
Total - Gross Amounts Not Offset in the Consolidated Balance Sheets - Non-Cash Collateral Pledged	-1,643	-2,740
Total - Net Liabilities	34	41
Cash and cash equivalents
Offsetting Securities Purchased under Agreements to Resell and Securities Borrowed [Abstract]
Reverse repurchase agreements - Gross Amounts of Recognized Assets	810	1,762
Receivable under reverse repurchase agreements
Offsetting Securities Purchased under Agreements to Resell and Securities Borrowed [Abstract]
Reverse repurchase agreements - Gross Amounts of Recognized Assets	$825	$875

Financial_Instruments_Narrativ

Financial Instruments (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Feb. 28, 2014	Dec. 31, 2012
Financial Instruments and Fair Value [Line Items]
Gross realized gains on the sale of our marketable securities	$77,000,000	$98,000,000
Gross realized losses on the sale of our marketable securities	45,000,000	24,000,000
Cash collateral received from derivative financial instruments	311,000,000		268,000,000
Forward-starting interest swaps, anticipated debt issuance amount				1,000,000,000
Effective portion of our cash flow hedges before tax effect	1,300,000,000
Cash flow hedges, expected to be reclassified from AOCI to revenues within the next 12 months	1,100,000,000
Interest rate contracts
Financial Instruments and Fair Value [Line Items]
Forward-starting interest swaps, notional amount	250,000,000		150,000,000
Cash Flow Hedging Relationship | Foreign exchange contracts
Financial Instruments and Fair Value [Line Items]
Forward-starting interest swaps, notional amount	13,500,000,000		13,600,000,000
Foreign exchange option contracts, maximum maturities (in months)	36 months
Derivatives in Fair Value Hedging Relationship | Interest rate contracts
Financial Instruments and Fair Value [Line Items]
Forward-starting interest swaps, notional amount	200,000,000		175,000,000
Derivatives in Fair Value Hedging Relationship | Foreign exchange contracts
Financial Instruments and Fair Value [Line Items]
Forward-starting interest swaps, notional amount	1,500,000,000		1,500,000,000
Derivatives Not Designated as Hedging Instruments | Interest rate swap
Financial Instruments and Fair Value [Line Items]
Forward-starting interest swaps, notional amount					1,000,000,000
Derivatives Not Designated as Hedging Instruments | Foreign exchange contracts
Financial Instruments and Fair Value [Line Items]
Forward-starting interest swaps, notional amount	6,200,000,000		6,200,000,000
Level 3
Financial Instruments and Fair Value [Line Items]
Balance at January 1, 2015	$998,000,000		$90,000,000

Debt_LongTerm_Debt_Details

Debt (Long-Term Debt) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Capital Lease Obligation	$9	$10
Total	9	10
Unamortized discount for the Notes above	-7	-8
Subtotal	2,993	2,992
Capital Lease Obligation	233	236
Total	3,226	3,228
2.125% Notes due on May 19, 2016
Debt Instrument [Line Items]
Long-Term Debt	1,000	1,000
Long-term debt, interest rate	2.13%
Long-term debt, maturity date	19-May-16
3.625% Notes due on May 19, 2021
Debt Instrument [Line Items]
Long-Term Debt	1,000	1,000
Long-term debt, interest rate	3.63%
Long-term debt, maturity date	19-May-21
3.375% Notes due on February 25, 2024
Debt Instrument [Line Items]
Long-Term Debt	$1,000	$1,000
Long-term debt, interest rate	3.38%
Long-term debt, maturity date	25-Feb-24

Debt_Narrative_Details

Debt (Narrative) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Feb. 28, 2014	31-May-11
				Loan
Short and Long Term Debt [Line Items]
Debt financing program through the issuance of commercial paper	$3,000,000,000
Amounts of commercial paper outstanding	2,000,000,000	2,000,000,000
Weighted average yield for commercial paper outstanding	0.10%	0.10%
Estimated fair value of long-term debt	3,200,000,000	3,100,000,000
2.125% Notes due on May 19, 2016
Short and Long Term Debt [Line Items]
Effective interest rate	2.24%
3.625% Notes due on May 19, 2021
Short and Long Term Debt [Line Items]
Effective interest rate	3.73%
3.375% Notes due on February 25, 2024
Short and Long Term Debt [Line Items]
Effective interest rate	3.38%
Unsecured debt
Short and Long Term Debt [Line Items]
Debt instrument, face amount			1,000,000,000	3,000,000,000
Number of unsecured senior notes tranches				3
Commercial paper financing credit facility
Short and Long Term Debt [Line Items]
Debt financing program through the issuance of commercial paper	3,000,000,000
Revolving Credit Facility
Short and Long Term Debt [Line Items]
Outstanding amount under the Credit Facility	$0	$0

Balance_Sheet_Components_Prope

Balance Sheet Components (Property and Equipment) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Property, Plant and Equipment, Net [Abstract]
Information technology assets	$11,855	$10,918
Land and buildings	13,479	13,326
Construction in progress	7,415	6,555
Leasehold improvements	2,016	1,868
Furniture and fixtures	78	79
Property and equipment, gross	34,843	32,746
Less: accumulated depreciation and amortization	-9,395	-8,863
Property and equipment, net	25,448	23,883
Construction in progress
Property, Plant and Equipment, Net [Abstract]
Cost basis of property and equipment under capital lease	$258

Balance_Sheet_Components_Note_

Balance Sheet Components (Note Receivable) (Details) (Motorola Mobile, USD $)	0 Months Ended
	Oct. 29, 2014	Mar. 31, 2015	Dec. 31, 2014
Motorola Mobile
Accounts, Notes, Loans and Financing Receivable [Line Items]
Promissory note received in connection with divestiture, term	3 years
Receivable with Imputed Interest, Effective Yield (Interest Rate)	4.50%
Principal of the Note Receivable		$1,500,000,000	$1,500,000,000
Less: unamortized discount for the Note Receivable		-160,000,000	-175,000,000
Total		1,340,000,000	1,325,000,000
Allowance for Promissory Noted Received in Connection with Divestiture		$0	$0

Balance_Sheet_Components_Compo

Balance Sheet Components (Components of Accumulated Other Comprehensive Income) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$27	$125
Other comprehensive income (loss) before reclassifications	-140	292
Amounts reclassified from AOCI	-258	-72
Other comprehensive income (loss)	-398	220
Ending balance	-371	345
Foreign Currency Translation Adjustments
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	-980	16
Other comprehensive income (loss) before reclassifications	-923	65
Amounts reclassified from AOCI	0	0
Other comprehensive income (loss)	-923	65
Ending balance	-1,903	81
Unrealized Gains (Losses) on Available-for-Sale Investments
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	421	50
Other comprehensive income (loss) before reclassifications	221	217
Amounts reclassified from AOCI	-27	-67
Other comprehensive income (loss)	194	150
Ending balance	615	200
Unrealized Gains on Cash Flow Hedges
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	586	59
Other comprehensive income (loss) before reclassifications	562	10
Amounts reclassified from AOCI	-231	-5
Other comprehensive income (loss)	331	5
Ending balance	$917	$64

Balance_Sheet_Components_Effec

Balance Sheet Components (Effects on Net Income of Amounts Reclassified from AOCI) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Reclassification Out Of Accumulated Other Comprehensive Income [Line Items]
Revenue	$17,258	$15,420
Interest and other income, net	157	357
Provision for income taxes	-1,018	-822
Net income	3,586	3,452
Gains (Losses) Reclassified from AOCI to the Consolidated Statement of Income
Reclassification Out Of Accumulated Other Comprehensive Income [Line Items]
Net income	258	72
Gains (Losses) Reclassified from AOCI to the Consolidated Statement of Income | Unrealized gains on available-for-sale investments
Reclassification Out Of Accumulated Other Comprehensive Income [Line Items]
Interest and other income, net	32	74
Provision for income taxes	-5	-7
Net income	27	67
Gains (Losses) Reclassified from AOCI to the Consolidated Statement of Income | Unrealized gains on cash flow hedges
Reclassification Out Of Accumulated Other Comprehensive Income [Line Items]
Provision for income taxes	-81	-3
Net income	231	5
Foreign exchange contracts | Gains (Losses) Reclassified from AOCI to the Consolidated Statement of Income | Unrealized gains on cash flow hedges
Reclassification Out Of Accumulated Other Comprehensive Income [Line Items]
Revenue	311	8
Interest rate contracts | Gains (Losses) Reclassified from AOCI to the Consolidated Statement of Income | Unrealized gains on cash flow hedges
Reclassification Out Of Accumulated Other Comprehensive Income [Line Items]
Interest and other income, net	$1	$0

Acquisitions_Narrative_Details

Acquisitions (Narrative) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Goodwill	15,573	$15,599
Patents and developed technology
Business Acquisition [Line Items]
Acquired intangible assets, weighted-average useful life	4 years 1 month 6 days
Trade names and other
Business Acquisition [Line Items]
Acquired intangible assets, weighted-average useful life	3 years
Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Acquisition purchase price	64
Intangible assets	26
Goodwill	17
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	21
Goodwill expected to be tax deductible	6

Collaboration_Agreement_Narrat

Collaboration Agreement (Narrative) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015
Calico
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Payments for interest in joint venture	$240
Research commitment | Calico
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Payments for interest in joint venture	250
Research commitment	500
Research commitment | Google Inc
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research commitment	490
Research commitment | AbbVie Inc
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Accumulated payments for interests in joint venture	$750

Goodwill_and_Other_Intangible_2

Goodwill and Other Intangible Assets (Changes in Carrying Amount of Goodwill) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015
Goodwill [Roll Forward]
Balance as of December 31, 2014	$15,599
Goodwill acquired	17
Goodwill adjustment	43
Balance as of March 31, 2015	$15,573

Goodwill_and_Other_Intangible_3

Goodwill and Other Intangible Assets (Acquisition-Related Intangible Assets that are being Amortized) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$8,635		$8,653
Accumulated Amortization	4,255		4,046
Net Carrying Value	4,380		4,607
Patents and developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	6,510		6,547
Accumulated Amortization	2,697		2,513
Net Carrying Value	3,813		4,034
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,396		1,410
Accumulated Amortization	1,199		1,168
Net Carrying Value	197		242
Trade names and other
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	729		696
Accumulated Amortization	359		365
Net Carrying Value	370		331
Acquisition-related intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of acquisition-related intangible assets	$239	$270

Goodwill_and_Other_Intangible_4

Goodwill and Other Intangible Assets (Expected Amortization Expense for Acquisition-Related Intangible Assets) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Remainder of 2015	$649
2016	791
2017	714
2018	631
2019	522
Thereafter	1,073
Net Carrying Value	$4,380	$4,607

Discontinued_Operations_Revenu

Discontinued Operations (Revenues and Earnings Attributable to Discontinued Operations) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015		Mar. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net loss from discontinued operations	$0	[1]	($198)	[1]
Motorola Mobile
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues			1,377
Loss from discontinued operations before income taxes			-274
Benefits from income taxes			76
Net loss from discontinued operations			($198)
[1]	(1) Includes stock-based compensation expense as follows: Cost of revenues$95 $160Research and development456 615Sales and marketing147 205General and administrative141 223Discontinued operations48 0Total stock-based compensation expense$887 $1,203

Discontinued_Operations_Narrat

Discontinued Operations (Narrative) (Details) (Indemnification Agreement, Motorola Mobile, USD $)	Oct. 29, 2014
In Millions, unless otherwise specified
Indemnification Agreement | Motorola Mobile
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Indemnification liability	$130

Interest_and_Other_Income_Net_1

Interest and Other Income, Net (Schedule of Interest and Other Income) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Other Income and Expenses [Abstract]
Interest income	$226	$168
Interest expense	-26	-24
Realized gains on available-for-sale investments, net	32	74
Foreign currency exchange losses, net	-62	-109
Realized gain on equity interest	0	103
Realized gain on non-marketable investments	0	117
Other income (expense), net	-13	28
Interest and other income, net	$157	$357

Net_Income_Per_Share_Schedule_

Net Income Per Share (Schedule of Earnings Per Share) (Details) (USD $)	3 Months Ended
In Millions, except Share data in Thousands, unless otherwise specified	Mar. 31, 2015		Mar. 31, 2014
Numerator
Allocation of undistributed earnings - continuing operations	$3,586		$3,650
Allocation of undistributed earnings - discontinued operations	0	[1]	-198	[1]
Net income	3,586		3,452
Denominator
Number of shares used in basic computation	680,915		672,587
Continuing operations (in dollars per share)	$5.27		$5.42
Discontinued operations (in dollars per share)	$0		($0.29)
Net income per share - basic (in dollars per share)	$5.27		$5.13
Numerator
Allocation of undistributed earnings - continuing operations	3,586		3,650
Allocation of undistributed earnings - discontinued operations	0	[1]	-198	[1]
Denominator
Number of shares used in basic computation	680,915		672,587
Weighted-average effect of dilutive securities
Number of shares used in per share computation	689,498		685,212
Continuing operations (in dollars per share)	$5.20		$5.33
Discontinued operations (in dollars per share)	$0		($0.29)
Net income per share - diluted (in dollars per share)	$5.20		$5.04
Class A Common Stock
Numerator
Allocation of undistributed earnings - continuing operations	1,512		1,521
Allocation of undistributed earnings - discontinued operations	0		-83
Net income	1,512		1,438
Denominator
Number of shares used in basic computation	287,043		280,202
Continuing operations (in dollars per share)	$5.27		$5.42
Discontinued operations (in dollars per share)	$0		($0.29)
Net income per share - basic (in dollars per share)	$5.27		$5.13
Numerator
Allocation of undistributed earnings - continuing operations	1,512		1,521
Allocation of undistributed earnings - discontinued operations	0		-83
Denominator
Number of shares used in basic computation	287,043		280,202
Weighted-average effect of dilutive securities
Conversion of Class B to Class A common shares outstanding	52,846		56,091
Employee stock options	1,694		2,419
Restricted stock units and other contingently issuable shares	1,045		3,894
Number of shares used in per share computation	342,628		342,606
Continuing operations (in dollars per share)	$5.20		$5.33
Discontinued operations (in dollars per share)	$0		($0.29)
Net income per share - diluted (in dollars per share)	$5.20		$5.04
Class A Common Stock | Continuing Operations
Numerator
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	278		304
Reallocation of undistributed earnings	-8		0
Allocation of undistributed earnings	1,782		1,825
Class A Common Stock | Discontinued operations
Numerator
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	0		-16
Reallocation of undistributed earnings	0		0
Allocation of undistributed earnings	0		-99
Class B Common Stock
Numerator
Allocation of undistributed earnings - continuing operations	278		304
Allocation of undistributed earnings - discontinued operations	0		-16
Net income	278		288
Denominator
Number of shares used in basic computation	52,846		56,091
Continuing operations (in dollars per share)	$5.27		$5.42
Discontinued operations (in dollars per share)	$0		($0.29)
Net income per share - basic (in dollars per share)	$5.27		$5.13
Numerator
Allocation of undistributed earnings - continuing operations	278		304
Allocation of undistributed earnings - discontinued operations	0		-16
Denominator
Number of shares used in basic computation	52,846		56,091
Weighted-average effect of dilutive securities
Conversion of Class B to Class A common shares outstanding	0		0
Employee stock options	0		0
Restricted stock units and other contingently issuable shares	0		0
Number of shares used in per share computation	52,846		56,091
Continuing operations (in dollars per share)	$5.20		$5.33
Discontinued operations (in dollars per share)	$0		($0.29)
Net income per share - diluted (in dollars per share)	$5.20		$5.04
Class B Common Stock | Continuing Operations
Numerator
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	0		0
Reallocation of undistributed earnings	-3		-5
Allocation of undistributed earnings	275		299
Class B Common Stock | Discontinued operations
Numerator
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	0		0
Reallocation of undistributed earnings	0		0
Allocation of undistributed earnings	0		-16
Class C Capital Stock
Numerator
Allocation of undistributed earnings - continuing operations	1,796		1,825
Allocation of undistributed earnings - discontinued operations	0		-99
Net income	1,796		1,726
Denominator
Number of shares used in basic computation	341,026		336,293
Continuing operations (in dollars per share)	$5.27		$5.42
Discontinued operations (in dollars per share)	$0		($0.29)
Net income per share - basic (in dollars per share)	$5.27		$5.13
Numerator
Allocation of undistributed earnings - continuing operations	1,796		1,825
Allocation of undistributed earnings - discontinued operations	0		-99
Denominator
Number of shares used in basic computation	341,026		336,293
Weighted-average effect of dilutive securities
Conversion of Class B to Class A common shares outstanding	0		0
Employee stock options	1,650		2,419
Restricted stock units and other contingently issuable shares	4,194		3,894
Number of shares used in per share computation	346,870		342,606
Continuing operations (in dollars per share)	$5.20		$5.33
Discontinued operations (in dollars per share)	$0		($0.29)
Net income per share - diluted (in dollars per share)	$5.20		$5.04
Class C Capital Stock | Continuing Operations
Numerator
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	0		0
Reallocation of undistributed earnings	8		0
Allocation of undistributed earnings	1,804		1,825
Class C Capital Stock | Discontinued operations
Numerator
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	0		0
Reallocation of undistributed earnings	0		0
Allocation of undistributed earnings	$0		($99)
[1]	(1) Includes stock-based compensation expense as follows: Cost of revenues$95 $160Research and development456 615Sales and marketing147 205General and administrative141 223Discontinued operations48 0Total stock-based compensation expense$887 $1,203

Stockholders_Equity_Stock_Opti

Stockholders' Equity (Stock Option Activity) (Details) (USD $)	3 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2015
Options Outstanding - Number of Shares
Balance as of December 31, 2014 (in shares)	7,240,419
Granted (in shares)	0
Exercised (in shares)	-619,179
Forfeited/canceled (in shares)	-4,153
Balance as of March 31, 2015 (in shares)	6,617,087
Exercisable as of March 31, 2015 (in shares)	5,681,295
Exercisable as of March 31, 2015 and expected to vest thereafter (in shares)	5,901,780
Options Outstanding - Weighted-Average Exercise Price
Balance as of December 31, 2014 (in dollars per share)	$215.56
Exercised (in dollars per share)	$179.33
Forfeited/canceled (in dollars per share)	$312.03
Balance as of March 31, 2015 (in dollars per share)	$218.88
Exercisable as of March 31, 2015 (in dollars per share)	$203.22
Exercisable as of March 31, 2015 and expected to vest thereafter (in dollars per share)	$217.40
Options Outstanding - Weighted-Average Remaining Contractual Term
Balance as of March 31, 2015	4 years 2 months 12 days
Exercisable as of March 31, 2015	3 years 9 months 18 days
Exercisable as of March 31, 2015 and expected to vest thereafter	4 years 2 months 12 days
Options Outstanding - Aggregate Intrinsic Value
Balance as of March 31, 2015	$2,200
Exercisable as of March 31, 2015	1,978
Exercisable as of March 31, 2015 and expected to vest thereafter	$2,176

Stockholders_Equity_Unvested_R

Stockholders' Equity (Unvested Restricted Stock Units Activity) (Details) (Restricted Stock Units (RSUs), USD $)	3 Months Ended
	Mar. 31, 2015
Restricted Stock Units (RSUs)
Unvested restricted stock units - number of shares
Unvested as of December 31, 2014 (in shares)	24,619,549
Granted (in shares)	1,233,138
Vested (in shares)	-2,617,997
Forfeited/canceled (in shares)	-378,918
Unvested as of March 31, 2015 (in shares)	22,855,772
Expected to vest after March 31, 2015 (in shares)	20,385,063
Unvested restricted stock units - weighted-average grant-date fair value
Unvested as of December 31, 2014 (in dollars per share)	$487.80
Granted (in dollars per share)	$527.84
Vested (in dollars per share)	$434.04
Forfeited/canceled (in dollars per share)	$479.95
Unvested as of March 31, 2015 (in dollars per share)	$496.25
Expected to vest after March 31, 2015 (in dollars per share)	$496.25

Stockholders_Equity_Narrative_

Stockholders' Equity (Narrative) (Details) (USD $)	3 Months Ended
In Millions, except Per Share data, unless otherwise specified	Mar. 31, 2015	Apr. 02, 2015
Class A Common Stock
Stockholders Equity Note [Line Items]
Closing stock price (in dollars per share)	$554.70
Class C Capital Stock
Stockholders Equity Note [Line Items]
Closing stock price (in dollars per share)	$548
Stock options
Stockholders Equity Note [Line Items]
Unrecognized compensation cost	$38
Unrecognized compensation cost related to stock awards, weighted-average period (in years)	1 year 1 month 6 days
Restricted Stock Units (RSUs)
Stockholders Equity Note [Line Items]
Unrecognized compensation cost	9,100
Unrecognized compensation cost related to stock awards, weighted-average period (in years)	2 years 8 months 12 days
Subsequent Event
Stockholders Equity Note [Line Items]
Class C adjustment payment		$522

Income_Taxes_Narrative_Details

Income Taxes (Narrative) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Income Tax Disclosure [Abstract]
Total unrecognized tax benefits	$3,683	$3,412
Total unrecognized tax benefits that, if recognized, would affect our effective tax rate	$3,268	$3,026

Information_about_Segments_and2

Information about Segments and Geographic Areas (Revenues by Geographic Area) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$17,258	$15,420
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	7,388	6,656
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	1,675	1,583
Rest of the world
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$8,195	$7,181

Information_about_Segments_and3

Information about Segments and Geographic Areas (Long-Lived Assets by Geographic Area) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$53,087	$50,448
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	40,136	37,355
International
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$12,951	$13,093

Subsequent_Events_Subsequent_E

Subsequent Events Subsequent Events (Details) (Moffett Federal Airfield, Subsequent Event, USD $)	0 Months Ended
In Billions, unless otherwise specified	Apr. 02, 2015
Moffett Federal Airfield | Subsequent Event
Subsequent Event [Line Items]
Term of operating lease	60 years
Renewal term of operating lease	15 years
Payments due on operating lease	$1.20