Alphabet (GOOG) 10-Q27 Oct 212021 Q3 Quarterly reportFinancial data

Company Profile

Cover Page

Cover Page - shares	9 Months Ended
Cover Page - shares	Sep. 30, 2021	Oct. 19, 2021
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	001-37580
Entity Registrant Name	Alphabet Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	61-1767919
Entity Address, Address Line One	1600 Amphitheatre Parkway
Entity Address, City or Town	Mountain View
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94043
City Area Code	650
Local Phone Number	253-0000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001652044
Current Fiscal Year End Date	--12-31
Class A Common Stock
Document Information [Line Items]
Title of 12(b) Security	Class A Common Stock, $0.001 par value
Trading Symbol	GOOGL
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		300,809,676
Class C Capital Stock
Document Information [Line Items]
Title of 12(b) Security	Class C Capital Stock, $0.001 par value
Trading Symbol	GOOG
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		317,737,778
Class B Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		45,216,540

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 23,719	$ 26,465
Marketable securities	118,284	110,229
Total cash, cash equivalents, and marketable securities	142,003	136,694
Accounts receivable, net	34,047	30,930
Income taxes receivable, net	753	454
Inventory	1,278	728
Other current assets	6,029	5,490
Total current assets	184,110	174,296
Non-marketable investments	26,101	20,703
Deferred income taxes	1,195	1,084
Property and equipment, net	94,631	84,749
Operating lease assets	12,918	12,211
Intangible assets, net	1,549	1,445
Goodwill	22,623	21,175
Other non-current assets	4,276	3,953
Total assets	347,403	319,616
Current liabilities:
Accounts payable	4,616	5,589
Accrued compensation and benefits	12,170	11,086
Accrued expenses and other current liabilities	30,113	28,631
Accrued revenue share	7,745	7,500
Deferred revenue	2,968	2,543
Income taxes payable, net	4,170	1,485
Total current liabilities	61,782	56,834
Long-term debt	14,288	13,932
Deferred revenue, non-current	510	481
Income taxes payable, non-current	8,984	8,849
Deferred income taxes	3,551	3,561
Operating lease liabilities	11,471	11,146
Other long-term liabilities	2,250	2,269
Total liabilities	102,836	97,072
Contingencies (Note 9)
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); 675,222 (Class A 300,730, Class B 45,843, Class C 328,649) and 664,682 (Class A 300,801, Class B 45,261, Class C 318,620) shares issued and outstanding	61,193	58,510
Accumulated other comprehensive income (loss)	(408)	633
Retained earnings	183,782	163,401
Total stockholders’ equity	244,567	222,544
Total liabilities and stockholders’ equity	$ 347,403	$ 319,616

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2021	Dec. 31, 2020
Stockholders’ equity:
Convertible preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Convertible preferred stock, shares authorized (in shares)	100,000,000	100,000,000
Convertible preferred stock, shares issued (in shares)	0	0
Convertible preferred stock, shares outstanding (in shares)	0	0
Common stock and capital stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock and capital stock, shares authorized (in shares)	15,000,000,000	15,000,000,000
Common stock and capital stock, shares issued (in shares)	664,682,000	675,222,000
Common stock and capital stock, shares outstanding (in shares)	664,682,000	675,222,000
Class A Common Stock
Stockholders’ equity:
Common stock and capital stock, shares authorized (in shares)	9,000,000,000	9,000,000,000
Common stock and capital stock, shares issued (in shares)	300,801,000	300,730,000
Common stock and capital stock, shares outstanding (in shares)	300,801,000	300,730,000
Class B Common Stock
Stockholders’ equity:
Common stock and capital stock, shares authorized (in shares)	3,000,000,000	3,000,000,000
Common stock and capital stock, shares issued (in shares)	45,261,000	45,843,000
Common stock and capital stock, shares outstanding (in shares)	45,261,000	45,843,000
Class C Capital Stock
Stockholders’ equity:
Common stock and capital stock, shares authorized (in shares)	3,000,000,000	3,000,000,000
Common stock and capital stock, shares issued (in shares)	318,620,000	328,649,000
Common stock and capital stock, shares outstanding (in shares)	318,620,000	328,649,000

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Revenues	$ 65,118	$ 46,173	$ 182,312	$ 125,629
Costs and expenses:
Cost of revenues	27,621	21,117	77,951	58,652
Research and development	7,694	6,856	22,854	20,551
Sales and marketing	5,516	4,231	15,308	12,632
General and administrative	3,256	2,756	9,370	8,221
Total costs and expenses	44,087	34,960	125,483	100,056
Income from operations	21,031	11,213	56,829	25,573
Other income (expense), net	2,033	2,146	9,503	3,820
Income before income taxes	23,064	13,359	66,332	29,393
Provision for income taxes	4,128	2,112	10,941	4,351
Net income	$ 18,936	$ 11,247	$ 55,391	$ 25,042
Basic net income per share of Class A and B common stock and Class C capital stock (in dollars per share)	$ 28.44	$ 16.55	$ 82.76	$ 36.69
Diluted net income per share of Class A and B common stock and Class C capital stock (in dollars per share)	$ 27.99	$ 16.40	$ 81.53	$ 36.38

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 18,936	$ 11,247	$ 55,391	$ 25,042
Other comprehensive income (loss):
Change in foreign currency translation adjustment	(614)	459	(671)	193
Available-for-sale investments:
Change in net unrealized gains (losses)	(159)	(19)	(699)	1,346
Less: reclassification adjustment for net (gains) losses included in net income	(57)	(73)	(121)	(391)
Net change, net of income tax benefit (expense) of $27, $63, $(274) and $235	(216)	(92)	(820)	955
Cash flow hedges:
Change in net unrealized gains (losses)	292	(48)	429	244
Less: reclassification adjustment for net (gains) losses included in net income	(60)	23	21	(114)
Net change, net of income tax benefit (expense) of $8, $(54), $(38) and $(89)	232	(25)	450	130
Other comprehensive income (loss)	(598)	342	(1,041)	1,278
Comprehensive income	$ 18,338	$ 11,589	$ 54,350	$ 26,320

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Income tax benefit (expense) related to available-for-sale investments	$ 63	$ 27	$ 235	$ (274)
Income tax benefit (expense) related to cash flow hedges	$ (54)	$ 8	$ (89)	$ (38)

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Millions	Total	Class A and Class B Common Stock, Class C Capital Stock and Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings
Beginning Balance (in shares) at Dec. 31, 2019		688,335
Beginning Balance at Dec. 31, 2019	$ 201,442	$ 50,552	$ (1,232)	$ 152,122
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common and capital stock issued (in shares)		6,185
Common and capital stock issued	158	$ 158
Stock-based compensation expense	9,865	9,865
Tax withholding related to vesting of restricted stock units and other	(4,076)	$ (4,076)
Repurchases of capital stock (in shares)		(16,796)
Repurchases of capital stock	(23,245)	$ (1,648)		(21,597)
Sale of interest in consolidated entities	2,456	$ 2,456
Net income	25,042			25,042
Other comprehensive income (loss)	1,278		1,278
Ending Balance (in shares) at Sep. 30, 2020		677,724
Ending Balance at Sep. 30, 2020	212,920	$ 57,307	46	155,567
Beginning Balance (in shares) at Jun. 30, 2020		681,215
Beginning Balance at Jun. 30, 2020	207,322	$ 55,937	(296)	151,681
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common and capital stock issued (in shares)		1,669
Common and capital stock issued	15	$ 15
Stock-based compensation expense	3,230	3,230
Tax withholding related to vesting of restricted stock units and other	(1,339)	$ (1,339)
Repurchases of capital stock (in shares)		(5,160)
Repurchases of capital stock	(7,897)	$ (536)		(7,361)
Sale of interest in consolidated entities	0	$ 0
Net income	11,247			11,247
Other comprehensive income (loss)	342		342
Ending Balance (in shares) at Sep. 30, 2020		677,724
Ending Balance at Sep. 30, 2020	212,920	$ 57,307	46	155,567
Beginning Balance (in shares) at Dec. 31, 2020		675,222
Beginning Balance at Dec. 31, 2020	222,544	$ 58,510	633	163,401
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common and capital stock issued (in shares)		5,114
Common and capital stock issued	8	$ 8
Stock-based compensation expense	11,546	11,546
Tax withholding related to vesting of restricted stock units and other	(7,390)	$ (7,390)
Repurchases of capital stock (in shares)		(15,654)
Repurchases of capital stock	(36,801)	$ (1,791)		(35,010)
Sale of interest in consolidated entities	310	$ 310
Net income	55,391			55,391
Other comprehensive income (loss)	(1,041)		(1,041)
Ending Balance (in shares) at Sep. 30, 2021		664,682
Ending Balance at Sep. 30, 2021	244,567	$ 61,193	(408)	183,782
Beginning Balance (in shares) at Jun. 30, 2021		667,637
Beginning Balance at Jun. 30, 2021	237,565	$ 60,436	190	176,939
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common and capital stock issued (in shares)		1,626
Common and capital stock issued	1	$ 1
Stock-based compensation expense	3,914	3,914
Tax withholding related to vesting of restricted stock units and other	(2,641)	$ (2,641)
Repurchases of capital stock (in shares)		(4,581)
Repurchases of capital stock	(12,610)	$ (517)		(12,093)
Sale of interest in consolidated entities	0	$ 0
Net income	18,936			18,936
Other comprehensive income (loss)	(598)		(598)
Ending Balance (in shares) at Sep. 30, 2021		664,682
Ending Balance at Sep. 30, 2021	$ 244,567	$ 61,193	$ (408)	$ 183,782

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Operating activities
Net income	$ 55,391	$ 25,042
Adjustments:
Depreciation and impairment of property and equipment	8,340	9,366
Amortization and impairment of intangible assets	662	606
Stock-based compensation expense	11,422	9,768
Deferred income taxes	192	(280)
Gain on debt and equity securities, net	(9,792)	(3,055)
Other	(199)	875
Changes in assets and liabilities, net of effects of acquisitions:
Accounts receivable	(3,276)	(1,079)
Income taxes, net	2,744	469
Other assets	(1,447)	(592)
Accounts payable	(874)	(269)
Accrued expenses and other liabilities	2,763	891
Accrued revenue share	386	277
Deferred revenue	406	428
Net cash provided by operating activities	66,718	42,447
Investing activities
Purchases of property and equipment	(18,257)	(16,802)
Purchases of marketable securities	(95,106)	(104,932)
Maturities and sales of marketable securities	92,126	97,751
Purchases of non-marketable investments	(2,068)	(1,864)
Maturities and sales of non-marketable investments	590	598
Acquisitions, net of cash acquired, and purchases of intangible assets	(2,233)	(368)
Other investing activities	441	125
Net cash used in investing activities	(24,507)	(25,492)
Financing activities
Net payments related to stock-based award activities	(7,239)	(4,073)
Repurchases of common and capital stock	(36,801)	(23,245)
Proceeds from issuance of debt, net of costs	13,949	11,761
Repayments of debt	(15,070)	(2,043)
Proceeds from sale of interest in consolidated entities, net	310	2,462
Net cash used in financing activities	(44,851)	(15,138)
Effect of exchange rate changes on cash and cash equivalents	(106)	(186)
Net increase (decrease) in cash and cash equivalents	(2,746)	1,631
Cash and cash equivalents at beginning of period	26,465	18,498
Cash and cash equivalents at end of period	$ 23,719	$ 20,129

Nature of Operations and Summar

Nature of Operations and Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Nature of Operations and Summary of Significant Accounting Policies	Nature of Operations and Summary of Significant Accounting Policies Nature of Operations Google was incorporated in California in September 1998 and re-incorporated in the State of Delaware in August 2003. In 2015, we implemented a holding company reorganization, and as a result, Alphabet became the successor issuer to Google. We generate revenues by delivering relevant, cost-effective online advertising, cloud-based solutions that provide customers with platforms, collaboration tools and services, and sales of other products and services, such as apps and in-app purchases, digital content and subscriptions for digital content, and hardware. Basis of Consolidation The consolidated financial statements of Alphabet include the accounts of Alphabet and entities consolidated under the variable interest and voting models. All intercompany balances and transactions have been eliminated. Unaudited Interim Financial Information The Consolidated Balance Sheet as of September 30, 2021, the Consolidated Statements of Income for the three and nine months ended September 30, 2020 and 2021, the Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2020 and 2021, the Consolidated Statements of Stockholders' Equity for the three and nine months ended September 30, 2020 and 2021 and the Consolidated Statements of Cash Flows for the nine months ended September 30, 2020 and 2021 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 September 30, 2021, our results of operations for the three and nine months ended September 30, 2020 and 2021, and our cash flows for the nine months ended September 30, 2020 and 2021. The results of operations for the three and nine months ended September 30, 2021 are not necessarily indicative of the results to be expected for the year ending December 31, 2021. These unaudited interim consolidated financial statements should be read in conjunction with the consolidated financial statements and the related notes included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020 filed with the SEC. Use of Estimates 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 allowance for credit losses, 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 assumptions, both historical and forward looking, that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. The allowance for credit losses on accounts receivable was $789 million and $567 million as of December 31, 2020 and September 30, 2021, respectively. Change in Accounting Estimate In January 2021, we completed an assessment of the useful lives of our servers and network equipment and adjusted the estimated useful life of our servers from three years to four years and the estimated useful life of certain network equipment from three years to five years. This change in accounting estimate was effective beginning in fiscal year 2021. Based on the carrying value of servers and certain network equipment as of December 31, 2020, and those acquired during the nine months ended September 30, 2021, the effect of this change in estimate was a reduction in depreciation expense of $591 million and $2.1 billion and an increase in net income of $460 million and $1.7 billion, or $0.69 and $2.50 per basic share and $0.68 and $2.46 per diluted share, for the three and nine months ended September 30, 2021, respectively. Prior Period Reclassifications Certain amounts in prior periods have been reclassified to conform with current period presentation.

Revenues

Revenues	9 Months Ended
Revenues	Sep. 30, 2021
Revenue from Contract with Customer [Abstract]
Revenues	Revenues Revenue Recognition The following table presents our revenues disaggregated by type (in millions). Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 Google Search & other $ 26,338 $ 37,926 $ 72,159 $ 105,650 YouTube ads 5,037 7,205 12,887 20,212 Google Network 5,720 7,999 15,679 22,396 Google advertising 37,095 53,130 100,725 148,258 Google other 5,478 6,754 15,037 19,871 Google Services total 42,573 59,884 115,762 168,129 Google Cloud 3,444 4,990 9,228 13,665 Other Bets 178 182 461 572 Hedging gains (losses) (22) 62 178 (54) Total revenues $ 46,173 $ 65,118 $ 125,629 $ 182,312 The following table presents our revenues disaggregated by geography, based on the addresses of our customers (in millions): Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 United States $ 21,442 47 % $ 29,824 46 % $ 58,311 47 % $ 83,064 46 % EMEA (1) 13,924 30 19,839 30 38,132 30 55,954 31 APAC (1) 8,458 18 11,705 18 22,641 18 33,391 18 Other Americas (1) 2,371 5 3,688 6 6,367 5 9,957 5 Hedging gains (losses) (22) 0 62 0 178 0 (54) 0 Total revenues $ 46,173 100 % $ 65,118 100 % $ 125,629 100 % $ 182,312 100 % (1) Regions represent Europe, the Middle East, and Africa ("EMEA"); Asia-Pacific ("APAC"); and Canada and Latin America ("Other Americas"). Deferred Revenues and Remaining Performance Obligations We record deferred revenues when cash payments are received or due in advance of our performance, including amounts which are refundable. Deferred revenues primarily relate to Google Cloud and Google other. Our total deferred revenue was $3.0 billion and $3.5 billion as of December 31, 2020 and September 30, 2021, respectively. Of the total deferred revenue as of December 31, 2020, $2.1 billion was recognized as revenues during the nine months ended September 30, 2021. Additionally, we have performance obligations associated with commitments in customer contracts, primarily related to Google Cloud, for future services that have not yet been recognized as revenues, also referred to as remaining performance obligations. Remaining performance obligations include related deferred revenue currently recorded as well as amounts that will be invoiced in future periods, and excludes (i) contracts with an original expected term of one year or less, (ii) cancellable contracts, and (iii) contracts for which we recognize revenue at the amount to which we have the right to invoice for services performed. As of September 30, 2021, the amount not yet recognized as revenues from these commitments was $37.1 billion. We expect to recognize approximately half over the next

Financial Instruments

Financial Instruments	9 Months Ended
Financial Instruments	Sep. 30, 2021
Fair Value Disclosures [Abstract]
Financial Instruments	Financial Instruments Debt Securities We classify our marketable debt securities, which are accounted for as available-for-sale, within Level 2 in the fair value hierarchy because we use quoted market prices to the extent available or alternative pricing sources and models utilizing market observable inputs to determine fair value. For certain marketable debt securities, we have elected the fair value option for which changes in fair value are recorded in other income (expense), net. The fair value option was elected for these securities to align with the unrealized gains and losses from related derivative contracts. Unrealized net gains related to debt securities still held where we have elected the fair value option were $87 million and $22 million as of December 31, 2020 and September 30, 2021, respectively. As of December 31, 2020 and September 30, 2021, the fair value of these debt securities was $2.0 billion and $3.0 billion, respectively. The following tables summarize our debt securities, for which we did not elect the fair value option, by significant investment categories (in millions): As of December 31, 2020 Adjusted Gross Gross Fair Cash and Cash Marketable Level 2: Time deposits (1) $ 3,564 $ 0 $ 0 $ 3,564 $ 3,564 $ 0 Government bonds 55,156 793 (9) 55,940 2,527 53,413 Corporate debt securities 31,521 704 (2) 32,223 8 32,215 Mortgage-backed and asset-backed securities 16,767 364 (7) 17,124 0 17,124 Total $ 107,008 $ 1,861 $ (18) $ 108,851 $ 6,099 $ 102,752 As of September 30, 2021 Adjusted Gross Gross Fair Cash and Cash Marketable Level 2: Time deposits (1) $ 5,277 $ 0 $ 0 $ 5,277 $ 5,277 $ 0 Government bonds 53,793 371 (93) 54,071 3 54,068 Corporate debt securities 35,156 362 (51) 35,467 0 35,467 Mortgage-backed and asset-backed securities 18,327 172 (44) 18,455 0 18,455 Total $ 112,553 $ 905 $ (188) $ 113,270 $ 5,280 $ 107,990 (1) The majority of our time deposits are domestic deposits. We determine realized gains or losses on the sale or extinguishment of debt securities on a specific identification method. We recognized gross realized gains of $127 million and $109 million for the three months ended September 30, 2020 and 2021, respectively, and $690 million and $360 million for the nine months ended September 30, 2020 and 2021, respectively. We recognized gross realized losses of $8 million and $29 million for the three months ended September 30, 2020 and 2021, respectively, and $135 million and $180 million for the nine months ended September 30, 2020 and 2021, respectively. We reflect these gains and losses as a component of other income (expense), net. The following table summarizes the estimated fair value of our investments in marketable debt securities by stated contractual maturity dates (in millions): As of Due in 1 year or less $ 19,074 Due in 1 year through 5 years 73,675 Due in 5 years through 10 years 4,207 Due after 10 years 13,993 Total $ 110,949 The following tables present fair values and gross unrealized losses recorded to AOCI, 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, 2020 Less than 12 Months 12 Months or Greater Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized Government bonds $ 5,516 $ (9) $ 3 $ 0 $ 5,519 $ (9) Corporate debt securities 1,999 (1) 0 0 1,999 (1) Mortgage-backed and asset-backed securities 929 (5) 242 (2) 1,171 (7) Total $ 8,444 $ (15) $ 245 $ (2) $ 8,689 $ (17) As of September 30, 2021 Less than 12 Months 12 Months or Greater Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized Government bonds $ 28,507 $ (92) $ 54 $ (1) $ 28,561 $ (93) Corporate debt securities 11,293 (19) 245 (2) 11,538 (21) Mortgage-backed and asset-backed securities 8,371 (41) 188 (3) 8,559 (44) Total $ 48,171 $ (152) $ 487 $ (6) $ 48,658 $ (158) During the three and nine months ended September 30, 2020 and 2021, we did not recognize any significant credit losses and the ending allowance balances for credit losses were immaterial as of December 31, 2020 and September 30, 2021. Equity Investments The following discusses our marketable equity securities, non-marketable equity securities, gains and losses on marketable and non-marketable equity securities, as well as our equity securities accounted for under the equity method. Our marketable equity securities are publicly traded stocks or funds measured at fair value and classified within Level 1 and 2 in the fair value hierarchy because we use quoted prices for identical assets in active markets or inputs that are based upon quoted prices for similar instruments in active markets. Our non-marketable equity securities are investments in privately held companies without readily determinable market values. The carrying value of our non-marketable equity securities is adjusted to fair value upon observable transactions for identical or similar investments of the same issuer or impairment (referred to as the measurement alternative). Non-marketable equity securities that have been remeasured during the period based on observable transactions are classified within Level 2 or Level 3 in the fair value hierarchy because we estimate the value based on valuation methods which may include a combination of the observable transaction price at the transaction date and other unobservable inputs including volatility, rights, and obligations of the securities we hold. The fair value of non-marketable equity securities that have been remeasured due to impairment are classified within Level 3. Gains and losses on marketable and non-marketable equity securities Gains and losses reflected in other income (expense), net, for our marketable and non-marketable equity securities are summarized below (in millions): Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 Net gain (loss) on equity securities sold during the period $ (5) $ (36) $ 426 $ 545 Net unrealized gain (loss) on equity securities held as of the end of the period 1,904 2,157 2,114 9,185 Total gain (loss) recognized in other income (expense), net $ 1,899 $ 2,121 $ 2,540 $ 9,730 In the table above, net gain (loss) on equity securities sold during the period reflects the difference between the sale proceeds and the carrying value of the equity securities at the beginning of the period or the purchase date, if later. Cumulative net gains (losses) on equity securities sold during the period, which is summarized in the following table (in millions), represents the total net gains (losses) recognized after the initial purchase date of the equity security. While these net gains may have been reflected in periods prior to the period of sale, we believe they are important supplemental information as they reflect the economic realized net gains on the securities sold during the period. Cumulative net gains are calculated as the difference between the sale price and the initial purchase price for the equity security sold during the period. Equity Securities Sold Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 Total sale price $ 1,389 $ 1,199 $ 2,888 $ 4,553 Total initial cost 1,146 188 1,831 955 Cumulative net gains (1) $ 243 $ 1,011 $ 1,057 $ 3,598 (1) Cumulative net gains excludes cumulative losses of $684 million resulting from our equity derivatives, which hedged the changes in fair value of certain marketable equity securities sold during the second quarter of 2021. The associated derivative liabilities arising from these losses were settled against our holdings of the underlying equity securities. Carrying value of marketable and non-marketable equity securities The carrying value is measured as the total initial cost plus the cumulative net gain (loss). The carrying values for our marketable and non-marketable equity securities are summarized below (in millions): As of December 31, 2020 Marketable Securities Non-Marketable Securities Total Total initial cost $ 2,227 $ 14,616 $ 16,843 Cumulative net gain (loss) (1) 3,631 4,277 7,908 Carrying value (2) $ 5,858 $ 18,893 $ 24,751 (1) Non-marketable equity securities cumulative net gain (loss) is comprised of $6.1 billion unrealized gains and $1.9 billion unrealized losses (including impairment). (2) The long-term portion of marketable equity securities of $429 million is included within other non-current assets. As of September 30, 2021 Marketable Securities (2) Non-Marketable Securities Total Total initial cost $ 2,823 $ 14,944 $ 17,767 Cumulative net gain (loss) (1) 4,954 9,194 14,148 Carrying value (2) $ 7,777 $ 24,138 $ 31,915 (1) Non-marketable equity securities cumulative net gain (loss) is comprised of $10.9 billion unrealized gains and $1.7 billion unrealized losses (including impairment). (2) The long-term portion of marketable equity securities of $443 million is included within other non-current assets. Marketable equity securities The following table summarizes marketable equity securities measured at fair value by significant investment categories (in millions): As of December 31, 2020 As of September 30, 2021 Cash and Cash Equivalents Marketable Cash and Cash Equivalents Marketable Level 1: Money market funds $ 12,210 $ 0 $ 10,732 $ 0 Marketable equity securities (1)(2) 0 5,470 0 7,430 12,210 5,470 10,732 7,430 Level 2: Mutual funds 0 388 0 347 Total $ 12,210 $ 5,858 $ 10,732 $ 7,777 (1) The balance as of December 31, 2020 and September 30, 2021 includes investments that were reclassified from non-marketable equity securities following the commencement of public market trading of the issuers or acquisition by public entities (certain of which are subject to short-term lock-up restrictions). (2) As of December 31, 2020 and September 30, 2021 the long-term portion of marketable equity securities of $429 million and $443 million, respectively, is included within other non-current assets. Non-marketable equity securities The following is a summary of unrealized gains and losses recorded in other income (expense), net, and included as adjustments to the carrying value of non-marketable equity securities (in millions): Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 Unrealized gains $ 1,225 $ 1,260 $ 1,770 $ 6,245 Unrealized losses (including impairment) (27) (37) (1,413) (98) Total unrealized gain (loss) for non-marketable equity securities $ 1,198 $ 1,223 $ 357 $ 6,147 During the three months ended September 30, 2021, included in the $24.1 billion of non-marketable equity securities, $2.5 billion were measured at fair value resulting in a net unrealized gain of $1.2 billion. Equity securities accounted for under the Equity Method As of December 31, 2020 and September 30, 2021, equity securities accounted for under the equity method had a carrying value of approximately $1.4 billion and $1.5 billion, respectively. Our share of gains and losses including impairment are included as a component of other income (expense), net, in the Consolidated Statements of Income. See Note 6 for further details on other income (expense), net. Derivative Financial Instruments We enter into derivative instruments to manage risks relating to our ongoing business operations. The primary risk managed with derivative instruments is foreign exchange risk. We use foreign currency contracts to reduce the risk that our cash flows, earnings, and investment in foreign subsidiaries will be adversely affected by foreign currency exchange rate fluctuations. We also enter into derivative instruments to partially offset our exposure to other risks and enhance investment returns. We recognize derivative instruments as either assets or liabilities in the Consolidated Balance Sheets at fair value and classify the derivatives primarily within Level 2 in the fair value hierarchy. We present our collar contracts (an option strategy comprised of a combination of purchased and written options) at net fair values where both the purchased and written options are with the same counterparty. For other derivative contracts, we present at gross fair values. We primarily record changes in the fair value in the Consolidated Statements of Income as either other income (expense), net, or revenues, or in the Consolidated Balance Sheets in AOCI, as discussed below. We enter into master netting arrangements, which reduce credit risk by permitting net settlement of transactions with the same counterparty. Further, we enter into collateral security arrangements that provide for collateral to be received or pledged when the net fair value of certain financial instruments fluctuates from contractually established thresholds. Cash collateral received related to derivative instruments under our collateral security arrangements are included in other current assets with a corresponding liability. Cash and non-cash collateral pledged related to derivative instruments under our collateral security arrangements are included in other current assets. Cash Flow Hedges We designate foreign currency forward and option contracts (including collars) as cash flow hedges to hedge certain f orecasted revenue transactions denominated in currencies other than the U.S. dollar. These contracts have maturities of 24 months or less. Cash flow hedge amounts included in the assessment of hedge effectiveness are deferred in AOCI and subsequently reclassified to revenue when the hedged item is recognized in earnings. We exclude the change in forward points and time value from our assessment of hedge effectiveness. The initial value of the excluded component is amortized on a straight-line basis over the life of the hedging instrument and recognized in revenues. The difference between fair value changes of the excluded component and the amount amortized to revenues is recorded in AOCI. If the hedged transactions become probable of not occurring, the corresponding amounts in AOCI are reclassified to other income (expense), net in the period of de-designation. As of September 30, 2021, the net accumulated gain on our foreign currency cash flow hedges before tax effect was $357 million, which is expected to be reclassified from AOCI into earnings within the next 12 months. Fair Value Hedges We designate foreign currency forward contracts as fair value hedges to hedge foreign currency risks for our investments denominated in currencies other than the U.S. dollar. Fair value hedge amounts included in the assessment of hedge effectiveness are recognized in other income (expense), net, along with the offsetting gains and losses of the related hedged items. We exclude changes in forward points from the assessment of hedge effectiveness and recognize changes in the excluded component in other income (expense), net. Net Investment Hedges We designate foreign currency forward contracts as net investment hedges to hedge the foreign currency risks related to our investment in foreign subsidiaries. Net investment hedge amounts included in the assessment of hedge effectiveness are recognized in AOCI along with the foreign currency translation adjustment. We exclude changes in forward points from the assessment of hedge effectiveness and recognize changes in the excluded component in other income (expense), net. Other Derivatives Other derivatives not designated as hedging instruments consist primarily of foreign currency forward contracts that we use to hedge intercompany transactions and other monetary assets or liabilities denominated in currencies other than the functional currency of a subsidiary. Gains and losses on these contracts, as well as the related costs, are recognized in other income (expense), net, along with the foreign currency gains and losses on monetary assets and liabilities. We also use derivatives not designated as hedging instruments to manage risks relating to interest rates, commodity prices, credit exposures and to enhance investment returns. Additionally, from time to time, we enter into derivatives to hedge the market price risk on certain of our marketable equity securities. Gains (losses) arising from these derivatives are reflected within the "other" component of other income (expense), net and the offsetting recognized gains (losses) on the marketable equity securities are reflected within the gain (loss) on equity securities, net component of other income (expense), net. See Note 6 for further details on other income (expense), net. The gross notional amounts of our outstanding derivative instruments were as follows (in millions): As of December 31, 2020 As of September 30, 2021 Derivatives Designated as Hedging Instruments: Foreign exchange contracts Cash flow hedges $ 10,187 $ 16,058 Fair value hedges $ 1,569 $ 2,502 Net investment hedges $ 9,965 $ 9,934 Derivatives Not Designated as Hedging Instruments: Foreign exchange contracts $ 39,861 $ 36,763 Other contracts $ 2,399 $ 4,107 The fair values of our outstanding derivative instruments were as follows (in millions): As of December 31, 2020 Balance Sheet Location Fair Value of Fair Value of Total Fair Value Derivative Assets: Level 2: Foreign exchange contracts Other current and non-current assets $ 33 $ 316 $ 349 Other contracts Other current and non-current assets 0 16 16 Total $ 33 $ 332 $ 365 Derivative Liabilities: Level 2: Foreign exchange contracts Accrued expenses and other liabilities, current and non-current $ 395 $ 185 $ 580 Other contracts Accrued expenses and other liabilities, current and non-current 0 942 942 Total $ 395 $ 1,127 $ 1,522 As of September 30, 2021 Balance Sheet Location Fair Value of Fair Value of Total Fair Value Derivative Assets: Level 2: Foreign exchange contracts Other current and non-current assets $ 505 $ 63 $ 568 Other contracts Other current and non-current assets 0 65 65 Total $ 505 $ 128 $ 633 Derivative Liabilities: Level 2: Foreign exchange contracts Accrued expenses and other liabilities, current and non-current $ 1 $ 141 $ 142 Other contracts Accrued expenses and other liabilities, current and non-current 0 179 179 Total $ 1 $ 320 $ 321 The gains (losses) on derivatives in cash flow hedging and net investment hedging relationships recognized in other comprehensive income ("OCI") are summarized below (in millions): Gains (Losses) Recognized in OCI on Derivatives Before Tax Effect Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 Derivatives in Cash Flow Hedging Relationship: Foreign exchange contracts Amount included in the assessment of effectiveness $ (37) $ 336 $ 331 $ 438 Amount excluded from the assessment of effectiveness (23) 18 (20) 63 Derivatives in Net Investment Hedging Relationship: Foreign exchange contracts Amount included in the assessment of effectiveness (371) 212 (412) 411 Total $ (431) $ 566 $ (101) $ 912 The effect of derivative instruments on income is summarized below (in millions): Gains (Losses) Recognized in Income Three Months Ended September 30, 2020 2021 Revenues Other income (expense), net Revenues Other income (expense), net Total amounts presented in the Consolidated Statements of Income in which the effects of cash flow and fair value hedges are recorded $ 46,173 $ 2,146 $ 65,118 $ 2,033 Gains (Losses) on Derivatives in Cash Flow Hedging Relationship: Foreign exchange contracts Amount of gains (losses) reclassified from AOCI to income $ (28) $ 0 $ 65 $ 0 Amount excluded from the assessment of effectiveness recognized in earnings based on an amortization approach 6 0 (3) 0 Gains (Losses) on Derivatives in Fair Value Hedging Relationship: Foreign exchange contracts Hedged items 0 14 0 (69) Derivatives designated as hedging instruments 0 (14) 0 69 Amount excluded from the assessment of effectiveness 0 0 0 2 Gains (Losses) on Derivatives in Net Investment Hedging Relationship: Foreign exchange contracts Amount excluded from the assessment of effectiveness 0 20 0 19 Gains (Losses) on Derivatives Not Designated as Hedging Instruments: Foreign exchange contracts 0 382 0 (148) Other Contracts 0 (181) 0 (88) Total gains (losses) $ (22) $ 221 $ 62 $ (215) Offsetting of Derivatives The gross amounts of our derivative instruments subject to master netting arrangements with various counterparties, and cash and non-cash collateral received and pledged under such agreements were as follows (in millions): Offsetting of Assets As of December 31, 2020 Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset 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 $ 397 $ (32) $ 365 $ (295) (1) $ (16) $ 0 $ 54 As of September 30, 2021 Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset 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 $ 667 $ (34) $ 633 $ (129) (1) $ (426) $ (13) $ 65 (1) The balances as of December 31, 2020 and September 30, 2021 were related to derivative liabilities which are allowed to be net settled against derivative assets in accordance with our master netting agreements. Offsetting of Liabilities As of December 31, 2020 Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset 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 $ 1,554 $ (32) $ 1,522 $ (295) (2) $ (1) $ (943) $ 283 As of September 30, 2021 Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset 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 $ 355 $ (34) $ 321 $ (129) (2) $ (1) $ (173) $ 18 (2) The balances as of December 31, 2020 and September 30, 2021 were related to derivative assets which are allowed to be net settled against derivative liabilities in accordance with our master netting agreements.

Variable Interest Entities

Variable Interest Entities	9 Months Ended
Variable Interest Entities	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Variable Interest Entities	Variable Interest Entities Consolidated VIEs We consolidate VIEs in which we hold a variable interest and are the primary beneficiary. The results of operations and financial position of these VIEs are included in our consolidated financial statements. For certain consolidated VIEs, their assets are not available to us and their creditors do not have recourse to us. As of December 31, 2020 and September 30, 2021, assets that can only be used to settle obligations of these VIEs were $5.7 billion and $6.8 billion, respectively, and the liabilities for which creditors only have recourse to the VIEs were $2.3 billion and $2.5 billion, respectively. Total noncontrolling interests ("NCI"), including redeemable noncontrolling interests ("RNCI"), in our consolidated subsidiaries was $3.9 billion and $4.4 billion as of December 31, 2020 and September 30, 2021, respectively. NCI and RNCI are included within additional paid-in capital. Net loss attributable to noncontrolling intere sts was not material for an y period presented and is included within the "other" component of other income (expense), net. See Note 6 for further details on other income (expense), net. Waymo In June 2021, Waymo, a consolidated VIE, completed an investment round with additional funding of $2.5 billion, the majority of which represented investment from Alphabet. The investments from external parties were accounted for as equity transactions and resulted in recognition of noncontrolling interests. Waymo is a self-driving technology development company with a mission to make it safe and easy for people and things to get where they're going. Unconsolidated VIEs We have investments in some VIEs in which we are not the primary beneficiary. These VIEs include private companies that are primarily early stage companies and certain renewable energy entities in which activities involve power generation using renewable sources. We have determined that the governance structures of these entities do not allow us to direct the activities that would significantly affect their economic performance. Therefore, we are not the primary beneficiary, and the results of operations and financial position of these VIEs are not included in our consolidated financial statements. We account for these investments as non-marketable equity investments or equity method investments. VIEs are generally based on the current carrying value of the investments and any future funding commitments. We have determined that the single source of our exposure to these VIEs is our capital investments in them. The carrying value and maximum exposure of these unconsolidated VIEs were not material as of December 31, 2020 and September 30, 2021.

Debt

Debt	9 Months Ended
Debt	Sep. 30, 2021
Debt Disclosure [Abstract]
Debt	Debt Short-Term Debt We have a debt financing program of up to $10.0 billion through the issuance of commercial paper, which increased from $5.0 billion in September 2021. Net proceeds from this program are used for general corporate purposes. We had no commercial paper outstanding as of December 31, 2020 and September 30, 2021. Our short-term debt balance also includes the current portion of certain long-term debt. Long-Term Debt The total outstanding debt is summarized below (in millions, except percentages): Maturity Coupon Rate Effective Interest Rate As of December 31, 2020 As of Debt 2011-2020 Notes Issuances 2024 - 2060 0.45% - 3.38% 0.57% - 3.38% $ 14,000 $ 13,000 Future finance lease payments, net (1) 1,201 1,696 Total debt 15,201 14,696 Unamortized discount and debt issuance costs (169) (159) Less: Current portion of Notes (2) (999) 0 Less: Current portion future finance lease payments, net (1)(2) (101) (249) Total long-term debt $ 13,932 $ 14,288 (1) Net of imputed interest. (2) Total current portion of long-term debt is included within other accrued expenses and current liabilities. See Note 6. The notes in the table above are comprised of fixed-rate senior unsecured obligations and generally rank equally with each other. We may redeem the notes at any time in whole or in part at specified redemption prices. The effective interest rates are based on proceeds received with interest payable semi-annually. The total estimated fair value of the outstanding notes, including the current portion, was approximately $14.0 billion and $12.3 billion as of December 31, 2020 and September 30, 2021, respectively. The fair value 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. Credit Facility As of September 30, 2021, we have $10.0 billion of revolving credit facilities. No amounts were outstanding under the credit facilities as of December 31, 2020 and September 30, 2021. In April 2021, we terminated the existing $4.0 billion revolving credit facilities, which were scheduled to expire in July 2023, and entered into two new revolving credit facilities in the amounts of $4.0 billion and $6.0 billion, which will expire in April 2022 and April 2026, respectively. The interest rates for the new credit facilities are determined based on a formula using certain market rates, as well as our progress toward the achievement of certain sustainability goals. No amounts have been borrowed under the new credit facilities.

Supplemental Financial Statemen

Supplemental Financial Statement Information	9 Months Ended
Supplemental Financial Statement Information	Sep. 30, 2021
Balance Sheet Components Disclosure [Abstract]
Supplemental Financial Statement Information	Supplemental Financial Statement Information Property and Equipment, Net Property and equipment, net, consisted of the following (in millions): As of As of Land and buildings $ 49,732 $ 57,268 Information technology assets 45,906 53,549 Construction in progress 23,111 22,494 Leasehold improvements 7,516 8,391 Furniture and fixtures 197 202 Property and equipment, gross 126,462 141,904 Less: accumulated depreciation (41,713) (47,273) Property and equipment, net $ 84,749 $ 94,631 Accrued expenses and other current liabilities Accrued expenses and other current liabilities consisted of the following (in millions): As of As of European Commission fines (1) $ 10,409 $ 10,073 Payables to brokers for unsettled investment trades 754 1,510 Accrued customer liabilities 3,118 3,039 Accrued purchases of property and equipment 2,197 2,309 Current operating lease liabilities 1,694 2,101 Other accrued expenses and current liabilities 10,459 11,081 Accrued expenses and other current liabilities $ 28,631 $ 30,113 (1) Includes the effects of foreign exchange and interest. See Note 9 for further details. Accumulated Other Comprehensive Income (Loss) The components of AOCI, net of income tax, were as follows (in millions): Foreign Currency Translation Adjustments Unrealized Gains (Losses) on Available-for-Sale Investments Unrealized Gains (Losses) on Cash Flow Hedges Total Balance as of December 31, 2019 $ (2,003) $ 812 $ (41) $ (1,232) Other comprehensive income (loss) before reclassifications 193 1,346 264 1,803 Amounts excluded from the assessment of hedge effectiveness recorded in AOCI 0 0 (20) (20) Amounts reclassified from AOCI 0 (391) (114) (505) Other comprehensive income (loss) 193 955 130 1,278 Balance as of September 30, 2020 $ (1,810) $ 1,767 $ 89 $ 46 Foreign Currency Translation Adjustments Unrealized Gains (Losses) on Available-for-Sale Investments Unrealized Gains (Losses) on Cash Flow Hedges Total Balance as of December 31, 2020 $ (864) $ 1,612 $ (115) $ 633 Other comprehensive income (loss) before reclassifications (671) (699) 366 (1,004) Amounts excluded from the assessment of hedge effectiveness recorded in AOCI 0 0 63 63 Amounts reclassified from AOCI 0 (121) 21 (100) Other comprehensive income (loss) (671) (820) 450 (1,041) Balance as of September 30, 2021 $ (1,535) $ 792 $ 335 $ (408) The effects on net income of amounts reclassified from AOCI were as follows (in millions): Gains (Losses) Reclassified from AOCI to the Consolidated Statements of Income Three Months Ended Nine Months Ended September 30, September 30, AOCI Components Location 2020 2021 2020 2021 Unrealized gains (losses) on available-for-sale investments Other income (expense), net $ 93 $ 73 $ 496 $ 155 Benefit (provision) for income taxes (20) (16) (105) (34) Net of income tax 73 57 391 121 Unrealized gains (losses) on cash flow hedges Foreign exchange contracts Revenue (28) 65 138 (43) Interest rate contracts Other income (expense), net 1 1 4 4 Benefit (provision) for income taxes 4 (6) (28) 18 Net of income tax (23) 60 114 (21) Total amount reclassified, net of income tax $ 50 $ 117 $ 505 $ 100 Other Income (Expense), Net The components of other income (expense), net, were as follows (in millions): Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 Interest income $ 460 $ 387 $ 1,479 $ 1,121 Interest expense (1) (48) (77) (82) (229) Foreign currency exchange gain (loss), net (84) (139) (257) (77) Gain (loss) on debt securities, net 116 37 515 62 Gain (loss) on equity securities, net 1,899 2,121 2,540 9,730 Performance fees (135) (492) (204) (1,680) Income (loss) and impairment from equity method investments, net 26 188 46 285 Other (88) 8 (217) 291 Other income (expense), net $ 2,146 $ 2,033 $ 3,820 $ 9,503 (1) Interest expense is net of interest capitalized of $53 million and $40 million for the three months ended September 30, 2020 and 2021, respectively, and $162 million and $132 million for the nine months ended September 30, 2020 and 2021, respectively.

Acquisitions

Acquisitions	9 Months Ended
Acquisitions	Sep. 30, 2021
Business Combination and Asset Acquisition [Abstract]
Acquisitions	AcquisitionsFitbitIn January 2021, we closed the acquisition of Fitbit, Inc. for $2.1 billion. The addition of Fitbit to Google Services is expected to help spur innovation in wearable devices. The assets acquired and liabilities assumed were recorded at fair value. The purchase price excludes post acquisition compensation arrangements. The purchase price was attributed to $440 million cash acquired, $590 million of intangible assets, $1.2 billion of goodwill and $92 million of net liabilities assumed. Goodwill was recorded in the Google Services segment and primarily attributable to synergies expected to arise after the acquisition. Goodwill is not expected to be deductible for tax purposes.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	9 Months Ended
Goodwill and Other Intangible Assets	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Goodwill Changes in the carrying amount of goodwill for the nine months ended September 30, 2021 were as follows (in millions): Google Services Google Cloud Other Bets Total Balance as of December 31, 2020 $ 18,517 $ 1,957 $ 701 $ 21,175 Acquisitions 1,306 47 102 1,455 Foreign currency translation and other adjustments 4 0 (11) (7) Balance as of September 30, 2021 $ 19,827 $ 2,004 $ 792 $ 22,623 Other Intangible Assets Information regarding purchased intangible assets were as follows (in millions): As of December 31, 2020 Gross Accumulated Net Patents and developed technology $ 4,639 $ 3,649 $ 990 Customer relationships 266 49 217 Trade names and other 699 461 238 Total $ 5,604 $ 4,159 $ 1,445 As of September 30, 2021 Gross Accumulated Net Patents and developed technology $ 4,818 $ 4,045 $ 773 Customer relationships 483 118 365 Trade names and other 946 535 411 Total $ 6,247 $ 4,698 $ 1,549 For all intangible assets acquired and purchased during the nine months ended September 30, 2021, patents and developed technology have a weighted -average useful lif e of 4.0 years, customer relationships have a weighted-average useful life of 4.3 years, and trade names and other have a weighted-average useful life of 9.9 years. Amortization expense relating to purchased intangible assets was $189 million and $219 million for the three months ended September 30, 2020 and 2021, respectively, and $587 million and $651 million for the nine months ended September 30, 2020 and 2021, respectively. As of September 30, 2021, expected amortization expense relating to purchased intangible assets for each of the next five years and thereafter was as follows (in millions): Remainder of 2021 $ 214 2022 512 2023 241 2024 215 2025 81 Thereafter 286 Total $ 1,549

Contingencies

Contingencies	9 Months Ended
Contingencies	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies Indemnifications In the normal course of business, including to facilitate transactions in our services and products and corporate activities, we indemnify certain parties, including advertisers, Google Network partners, customers of Google Cloud offerings, lessors, and service providers with respect to certain matters. We have agreed to hold certain parties harmless against losses arising from a breach of representations or covenants, or out of intellectual property infringement or other claims made against certain parties. Several of these agreements limit the time within which an indemnification claim can be made and the amount of the claim. In addition, we have entered into indemnification agreements with our officers and directors, and our bylaws contain similar indemnification obligations to our agents. It is not possible to make a reasonable estimate of the maximum potential amount under these indemnification agreements due to the unique facts and circumstances involved in each particular agreement. Additionally, we have a limited history of prior indemnification claims and the payments we have made under such agreements have not had a material adverse effect on our results of operations, cash flows, or financial position. However, to the extent that valid indemnification claims arise in the future, future payments by us could be significant and could have a material adverse effect on our results of operations or cash flows in a particular period. As of September 30, 2021, we did not have any material indemnification claims that were probable or reasonably possible. Legal Matters Antitrust Investigations On November 30, 2010, the EC's Directorate General for Competition opened an investigation into various antitrust-related complaints against us. On June 27, 2017, the EC announced its decision that certain actions taken by Google regarding its display and ranking of shopping search results and ads infringed European competition law. The EC decision imposed a €2.4 billion ($2.7 billion as of June 27, 2017) fine. On September 11, 2017, we appealed the EC decision and on September 27, 2017, we implemented product changes to bring shopping ads into compliance with the EC's decision. We recognized a charge of $2.7 billion for the fine in the second quarter of 2017. On July 18, 2018, the EC announced its decision that certain provisions in Google’s Android-related distribution agreements infringed European competition law. The EC decision imposed a €4.3 billion ($5.1 billion as of June 30, 2018) fine and directed the termination of the conduct at issue. On October 9, 2018, we appealed the EC decision. On October 29, 2018, we implemented changes to certain of our Android distribution practices. We recognized a charge of $5.1 billion for the fine in the second quarter of 2018. On March 20, 2019, the EC announced its decision that certain contractual provisions in agreements that Google had with AdSense for Search partners infringed European competition law. The EC decision imposed a fine of €1.5 billion ($1.7 billion as of March 20, 2019) and directed actions related to AdSense for Search partners' agreements, which we implemented prior to the decision. On June 4, 2019, we appealed the EC decision. We recognized a charge of $1.7 billion for the fine in the first quarter of 2019. While each EC decision is under appeal, we included the fines in accrued expenses and other current liabilities on our Consolidated Balance Sheets as we provided bank guarantees (in lieu of a cash payment) for the fines. From time to time we are subject to formal and informal inquiries and investigations on competition matters by regulatory authorities in the United States, Europe, and other jurisdictions. In August 2019, we began receiving civil investigative demands from the U.S. Department of Justice ("DOJ") requesting information and documents relating to our prior antitrust investigations and certain aspects of our business. The DOJ and a number of state Attorneys General filed a lawsuit on October 20, 2020 alleging that Google violated U.S. antitrust laws relating to Search and Search advertising. Separately, on December 16, 2020, a number of state Attorneys General filed an antitrust complaint against Google in the United States District Court for the Eastern District of Texas, alleging that Google violated U.S. antitrust laws as well as state deceptive trade laws relating to its advertising technology. On June 22, 2021, the EC opened a formal investigation into Google's advertising technology business practices. On July 7, 2021, a number of state Attorneys General filed an antitrust complaint against us in the United States District Court for the Northern District of California, alleging that Google’s operation of Android and Google Play violated U.S. antitrust laws and state antitrust and consumer protection laws. We believe these complaints are without merit and will defend ourselves vigorously. The DOJ and state Attorneys General continue their investigations into certain aspects of our business. We continue to cooperate with federal and state regulators in the United States, the EC, and other regulators around the world. Patent and Intellectual Property Claims We have had patent, copyright, trade secret, and trademark infringement lawsuits filed against us claiming that certain of our products, services, and technologies infringe others' intellectual property rights. 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. As a result, we may have to change our business practices, and develop 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 in an ITC action can result in a prohibition on importing infringing products into the U.S. Because 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 against certain intellectual property infringement claims, 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. In addition, 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 affect our business. In 2010, Oracle America, Inc. ("Oracle") brought a copyright lawsuit against Google in the Northern District of California, alleging that Google's Android operating system infringes Oracle's copyrights related to certain Java application programming interfaces (“Java APIs”). After trial, final judgment was entered by the district court in favor of Google on June 8, 2016, and the court decided post-trial motions in favor of Google. Oracle appealed and on March 27, 2018, the Federal Circuit Court of Appeals reversed and remanded the case for a trial on damages. On May 29, 2018, we filed a petition for a rehearing at the Federal Circuit, and on August 28, 2018, the Federal Circuit denied the petition. On January 24, 2019, we filed a petition to the Supreme Court of the United States to review the case. On April 29, 2019, the Supreme Court requested the views of the Solicitor General regarding our petition. On September 27, 2019, the Solicitor General recommended denying our petition, and we provided our response on October 16, 2019. On November 15, 2019, the Supreme Court granted our petition and made a decision to review the case. The Supreme Court heard oral arguments in our case on October 7, 2020. On April 5, 2021, the Supreme Court reversed the Federal Circuit's ruling and found that Google’s use of the Java APIs was a fair use as a matter of law. The Supreme Court remanded the case to the Federal Circuit for further proceedings in conformity with the Supreme Court opinion. On May 14, 2021, the Federal Circuit entered an order affirming the district court’s final judgment in favor of Google. On June 21, 2021, the Federal Circuit issued a mandate returning the case to the district court, and the case is now concluded. Other We are also regularly subject to claims, suits, regulatory and government investigations, other proceedings, and consent decrees involving competition, intellectual property, privacy, tax and related compliance, 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, regulatory and government investigations, other proceedings, and consent decrees could result in substantial fines and penalties, injunctive relief, ongoing auditing and monitoring obligations, changes to our products and services, alterations to our business models and operations, and collateral related civil litigation or other adverse consequences, all of which could harm our business, reputation, financial condition, and operating results. Certain of these outstanding matters include speculative, substantial or indeterminate monetary amounts. 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 reasonably possible and the loss or range of loss can be estimated, we disclose the reasonably possible loss. We evaluate developments in our legal matters that could affect the amount of liability that has been previously accrued, and the matters and related reasonably 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 matters, based on our current knowledge, we believe that the amount or range of reasonably possible loss will not, either individually or in aggregate, have a material adverse effect on our business, consolidated financial position, results of operations, or cash flows. However, the outcome of such matters is inherently unpredictable and subject to significant uncertainties. We expense legal fees in the period in which they are incurred. Non-Income Taxes We are under audit by various domestic and foreign tax authorities with regards to non-income tax matters. The subject matter of non-income tax audits primarily arises from disputes on the tax treatment and tax rate applied to the sale of our products and services in these jurisdictions and the tax treatment of certain employee benefits. We accrue non-income taxes that may result from examinations by, or any negotiated agreements with, these tax authorities when a loss is probable and reasonably estimable. If we determine that a loss is reasonably possible and the loss or range of loss can be estimated, we disclose the reasonably possible loss. Due to the inherent complexity and uncertainty of these matters and judicial process in certain jurisdictions, the final outcome may be materially different from our expectations. For information regarding income tax contingencies, see Note 13.

Stockholders' Equity

Stockholders' Equity	9 Months Ended
Stockholders' Equity	Sep. 30, 2021
Equity [Abstract]
Stockholders' Equity	Stockholders' Equity Share Repurchases In April 2021, the Board of Directors of Alphabet authorized the company to repurchase up to $50.0 billion of its Class C stock. In July 2021, the Alphabet board approved an amendment to the April 2021 authorization, permitting the company to repurchase both Class A and Class C shares in a manner deemed in the best interest of the company and its stockholders, taking into account the economic cost and prevailing market conditions, including the relative trading prices and volumes of the Class A and Class C shares. As of September 30, 2021, $30.8 billion remains available for repurchase of Class A and Class C shares under the amended authorization. The repurchases are being executed from time to time, subject to general business and market conditions and other investment opportunities, through open market purchases or privately negotiated transactions, including through Rule 10b5-1 plans. The repurchase program does not have an expiration date. In accordance with the authorization of the Board of Directors of Alphabet, during the three and nine months ended September 30, 2021, we repurchased and subsequently retired 4.6 million and 15.7 million aggregate shares for $12.6 billion and $36.8 billion, respectively. Of the aggregate amount repurchased and subsequently retired during the three months ended September 30, 2021, 0.5 million shares were Class A stock for $1.5 billion.

Net Income Per Share

Net Income Per Share	9 Months Ended
Net Income Per Share	Sep. 30, 2021
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 September 30, 2020 2021 Class A Class B Class C Class A Class B Class C Basic net income per share: Numerator Allocation of undistributed earnings $ 4,973 $ 763 $ 5,511 $ 8,548 $ 1,291 $ 9,097 Denominator Number of shares used in per share computation 300,411 46,108 332,930 300,519 45,404 319,835 Basic net income per share $ 16.55 $ 16.55 $ 16.55 $ 28.44 $ 28.44 $ 28.44 Diluted net income per share: Numerator Allocation of undistributed earnings for basic computation $ 4,973 $ 763 $ 5,511 $ 8,548 $ 1,291 $ 9,097 Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares 763 0 0 1,291 0 0 Reallocation of undistributed earnings (53) (7) 53 (156) (20) 156 Allocation of undistributed earnings $ 5,683 $ 756 $ 5,564 $ 9,683 $ 1,271 $ 9,253 Denominator Number of shares used in basic computation 300,411 46,108 332,930 300,519 45,404 319,835 Weighted-average effect of dilutive securities Add: Conversion of Class B to Class A common shares outstanding 46,108 0 0 45,404 0 0 Restricted stock units and other contingently issuable shares 47 0 6,355 14 0 10,747 Number of shares used in per share computation 346,566 46,108 339,285 345,937 45,404 330,582 Diluted net income per share $ 16.40 $ 16.40 $ 16.40 $ 27.99 $ 27.99 $ 27.99 Nine Months Ended September 30, 2020 2021 Class A Class B Class C Class A Class B Class C Basic net income per share: Numerator Allocation of undistributed earnings $ 11,004 $ 1,697 $ 12,341 $ 24,867 $ 3,776 $ 26,748 Denominator Number of shares used in per share computation 299,934 46,266 336,361 300,482 45,622 323,208 Basic net income per share $ 36.69 $ 36.69 $ 36.69 $ 82.76 $ 82.76 $ 82.76 Diluted net income per share: Numerator Allocation of undistributed earnings for basic computation $ 11,004 $ 1,697 $ 12,341 $ 24,867 $ 3,776 $ 26,748 Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares 1,697 0 0 3,776 0 0 Reallocation of undistributed earnings (103) (14) 103 (424) (56) 424 Allocation of undistributed earnings $ 12,598 $ 1,683 $ 12,444 $ 28,219 $ 3,720 $ 27,172 Denominator Number of shares used in basic computation 299,934 46,266 336,361 300,482 45,622 323,208 Weighted-average effect of dilutive securities Add: Conversion of Class B to Class A common shares outstanding 46,266 0 0 45,622 0 0 Restricted stock units and other contingently issuable shares 105 0 5,715 16 0 10,073 Number of shares used in per share computation 346,305 46,266 342,076 346,120 45,622 333,281 Diluted net income per share $ 36.38 $ 36.38 $ 36.38 $ 81.53 $ 81.53 $ 81.53 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 entitled to equal per share dividends or distributions in liquidation in accordance with the Amended and Restated Certificate of Incorporation of Alphabet Inc.

Compensation Plans

Compensation Plans	9 Months Ended
Compensation Plans	Sep. 30, 2021
Equity [Abstract]
Compensation Plans	Compensation Plans Stock-Based Compensation For the three months ended September 30, 2020 and 2021, total stock-based compensation ("SBC") expense was $3.3 billion and $3.9 billion, including amou nts associated with awards we expect to settle in Alphabet stock of $3.1 billion an d $3.8 billion, r espectively. For the nine months ended September 30, 2020 and 2021, total SBC expense was $10.1 billion and $11.7 billion, including amounts associated with awards we expect to settle in Alphabet stock of $9.6 billion and $11.2 billion, r espectively. Stock-Based Award Activities The following table summarizes the activities for our unvested restricted stock units ("RSUs") in Alphabet stock for the nine months ended September 30, 2021: Unvested Restricted Stock Units Number of Weighted- Unvested as of December 31, 2020 19,288,793 $ 1,262.13 Granted 9,849,733 $ 1,883.76 Vested (7,984,196) $ 1,334.16 Forfeited/canceled (1,471,948) $ 1,411.50 Unvested as of September 30, 2021 19,682,382 $ 1,538.30

Income Taxes

Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The following table presents our provision for income taxes (in millions, except for effective tax rate): Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 Provision for income taxes $ 2,112 $ 4,128 $ 4,351 $ 10,941 Effective tax rate 15.8 % 17.9 % 14.8 % 16.5 % We are subject to income taxes in the U.S. and foreign jurisdictions. Significant judgment is required in evaluating our uncertain tax positions and determining our provision for income taxes. Our total gross unrecognized tax benefits were $3.8 billion and $5.3 billion as of December 31, 2020 and September 30, 2021, respectively. Our total unrecognized tax benefits that, if recognized, would affect our effective tax rate were $2.6 billion and $3.7 billion as of December 31, 2020 and September 30, 2021, respectively. Although the timing of the resolution, settlement, and closure of audits is not certain, we do not believe it is reasonably possible that our unrecognized tax benefits will materially change in the next 12 months. For information regarding non-income taxes, see Note 9.

Information about Segments and

Information about Segments and Geographic Areas	9 Months Ended
Information about Segments and Geographic Areas	Sep. 30, 2021
Segment Reporting [Abstract]
Information about Segments and Geographic Areas	Information about Segments and Geographic Areas Beginning in the fourth quarter of 2020, we report our segment results as Google Services, Google Cloud, and Other Bets: • Google Services includes products and services such as ads, Android, Chrome, hardware, Google Maps, Google Play, Search, and YouTube. Google Services generates revenues primarily from advertising; sales of apps, in-app purchases, digital content products, and hardware; and fees received for subscription-based products such as YouTube Premium and YouTube TV. • Google Cloud includes Google’s infrastructure and data analytics platforms, collaboration tools, and other services for enterprise customers. Google Cloud generates revenues primarily from fees received for Google Cloud Platform services and Google Workspace collaboration tools. • Other Bets is a combination of multiple operating segments that are not individually material. Revenues from the Other Bets are derived primarily through the sale of internet services as well as licensing and R&D services. Revenues and certain costs, such as costs associated with content and traffic acquisition, certain engineering, and hardware costs and other operating expenses, are directly attributable to our segments. Due to the integrated nature of Alphabet, other costs and expenses, such as technical infrastructure and office facilities, are managed centrally at a consolidated level. The associated costs, including depreciation and impairment, are allocated to operating segments as a service cost generally based on usage or headcount. Unallocated corporate costs primarily include corporate initiatives, corporate shared costs, such as finance and legal, including certain fines and settlements, as well as costs associated with certain shared research and development activities. Additionally, hedging gains (losses) related to revenue are included in corporate costs. Our Chief Operating Decision Maker does not evaluate operating segments using asset information. Information about segments during the periods presented were as follows (in millions). For comparative purposes, amounts in prior periods have been recast: Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 Revenues: Google Services $ 42,573 $ 59,884 $ 115,762 $ 168,129 Google Cloud 3,444 4,990 9,228 13,665 Other Bets 178 182 461 572 Hedging gains (losses) (22) 62 178 (54) Total revenues $ 46,173 $ 65,118 $ 125,629 $ 182,312 Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 Operating income (loss): Google Services $ 14,453 $ 23,973 $ 35,540 $ 65,862 Google Cloud (1,208) (644) (4,364) (2,209) Other Bets (1,103) (1,288) (3,340) (3,831) Corporate costs, unallocated (929) (1,010) (2,263) (2,993) Total income from operations $ 11,213 $ 21,031 $ 25,573 $ 56,829 For revenues by geography, see Note 2. The following table presents our long-lived assets by geographic area, which includes property and equipment, net and operating lease assets (in millions): As of As of Long-lived assets: United States $ 69,315 $ 77,281 International 27,645 30,268 Total long-lived assets $ 96,960 $ 107,549

Nature of Operations and Summ_2

Nature of Operations and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Nature of Operations	Nature of Operations Google was incorporated in California in September 1998 and re-incorporated in the State of Delaware in August 2003. In 2015, we implemented a holding company reorganization, and as a result, Alphabet became the successor issuer to Google. We generate revenues by delivering relevant, cost-effective online advertising, cloud-based solutions that provide customers with platforms, collaboration tools and services, and sales of other products and services, such as apps and in-app purchases, digital content and subscriptions for digital content, and hardware.
Basis of Consolidation	Basis of ConsolidationThe consolidated financial statements of Alphabet include the accounts of Alphabet and entities consolidated under the variable interest and voting models. All intercompany balances and transactions have been eliminated.
Unaudited Interim Financial Information	Unaudited Interim Financial Information The Consolidated Balance Sheet as of September 30, 2021, the Consolidated Statements of Income for the three and nine months ended September 30, 2020 and 2021, the Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2020 and 2021, the Consolidated Statements of Stockholders' Equity for the three and nine months ended September 30, 2020 and 2021 and the Consolidated Statements of Cash Flows for the nine months ended September 30, 2020 and 2021 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 September 30, 2021, our results of operations for the three and nine months ended September 30, 2020 and 2021, and our cash flows for the nine months ended September 30, 2020 and 2021. The results of operations for the three and nine months ended September 30, 2021 are not necessarily indicative of the results to be expected for the year ending December 31, 2021. These unaudited interim consolidated financial statements should be read in conjunction with the consolidated financial statements and the related notes included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020 filed with the SEC.
Use of Estimates	Use of Estimates 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 allowance for credit losses, 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 assumptions, both historical and forward looking, that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities.
Prior Period Reclassifications	Prior Period Reclassifications Certain amounts in prior periods have been reclassified to conform with current period presentation.
Deferred Revenues and Remaining Performance Obligations	Deferred Revenues and Remaining Performance Obligations We record deferred revenues when cash payments are received or due in advance of our performance, including amounts which are refundable. Deferred revenues primarily relate to Google Cloud and Google other. Our total deferred revenue was $3.0 billion and $3.5 billion as of December 31, 2020 and September 30, 2021, respectively. Of the total deferred revenue as of December 31, 2020, $2.1 billion was recognized as revenues during the nine months ended September 30, 2021. Additionally, we have performance obligations associated with commitments in customer contracts, primarily related to Google Cloud, for future services that have not yet been recognized as revenues, also referred to as remaining performance obligations. Remaining performance obligations include related deferred revenue currently recorded as well as amounts that will be invoiced in future periods, and excludes (i) contracts with an original expected term of one year or less, (ii) cancellable contracts, and (iii) contracts for which we recognize revenue at the amount to which we have the right to invoice for services performed. As of September 30, 2021, the amount not yet recognized as revenues from these commitments was $37.1 billion. We expect to recognize approximately half over the next
Consolidated VIEs	We consolidate VIEs in which we hold a variable interest and are the primary beneficiary. The results of operations and financial position of these VIEs are included in our consolidated financial statements.
Fair Value of Financial Instruments	Debt Securities We classify our marketable debt securities, which are accounted for as available-for-sale, within Level 2 in the fair value hierarchy because we use quoted market prices to the extent available or alternative pricing sources and models utilizing market observable inputs to determine fair value. Equity Investments The following discusses our marketable equity securities, non-marketable equity securities, gains and losses on marketable and non-marketable equity securities, as well as our equity securities accounted for under the equity method. Our marketable equity securities are publicly traded stocks or funds measured at fair value and classified within Level 1 and 2 in the fair value hierarchy because we use quoted prices for identical assets in active markets or inputs that are based upon quoted prices for similar instruments in active markets. Our non-marketable equity securities are investments in privately held companies without readily determinable market values. The carrying value of our non-marketable equity securities is adjusted to fair value upon observable transactions for identical or similar investments of the same issuer or impairment (referred to as the measurement alternative). Non-marketable equity securities that have been remeasured during the period based on observable transactions are classified within Level 2 or Level 3 in the fair value hierarchy because we estimate the value based on valuation methods which may include a combination of the observable transaction price at the transaction date and other unobservable inputs including volatility, rights, and obligations of the securities we hold. The fair value of non-marketable equity securities that have been remeasured due to impairment are classified within Level 3.
Segment Reporting	Beginning in the fourth quarter of 2020, we report our segment results as Google Services, Google Cloud, and Other Bets: • Google Services includes products and services such as ads, Android, Chrome, hardware, Google Maps, Google Play, Search, and YouTube. Google Services generates revenues primarily from advertising; sales of apps, in-app purchases, digital content products, and hardware; and fees received for subscription-based products such as YouTube Premium and YouTube TV. • Google Cloud includes Google’s infrastructure and data analytics platforms, collaboration tools, and other services for enterprise customers. Google Cloud generates revenues primarily from fees received for Google Cloud Platform services and Google Workspace collaboration tools. • Other Bets is a combination of multiple operating segments that are not individually material. Revenues from the Other Bets are derived primarily through the sale of internet services as well as licensing and R&D services. Revenues and certain costs, such as costs associated with content and traffic acquisition, certain engineering, and hardware costs and other operating expenses, are directly attributable to our segments. Due to the integrated nature of Alphabet, other costs and expenses, such as technical infrastructure and office facilities, are managed centrally at a consolidated level. The associated costs, including depreciation and impairment, are allocated to operating segments as a service cost generally based on usage or headcount. Unallocated corporate costs primarily include corporate initiatives, corporate shared costs, such as finance and legal, including certain fines and settlements, as well as costs associated with certain shared research and development activities. Additionally, hedging gains (losses) related to revenue are included in corporate costs. Our Chief Operating Decision Maker does not evaluate operating segments using asset information.

Revenues (Tables)

Revenues (Tables)	9 Months Ended
Revenues (Tables)	Sep. 30, 2021
Revenue from Contract with Customer [Abstract]
Revenue by revenue source	The following table presents our revenues disaggregated by type (in millions). Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 Google Search & other $ 26,338 $ 37,926 $ 72,159 $ 105,650 YouTube ads 5,037 7,205 12,887 20,212 Google Network 5,720 7,999 15,679 22,396 Google advertising 37,095 53,130 100,725 148,258 Google other 5,478 6,754 15,037 19,871 Google Services total 42,573 59,884 115,762 168,129 Google Cloud 3,444 4,990 9,228 13,665 Other Bets 178 182 461 572 Hedging gains (losses) (22) 62 178 (54) Total revenues $ 46,173 $ 65,118 $ 125,629 $ 182,312
Revenue by geographic location	The following table presents our revenues disaggregated by geography, based on the addresses of our customers (in millions): Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 United States $ 21,442 47 % $ 29,824 46 % $ 58,311 47 % $ 83,064 46 % EMEA (1) 13,924 30 19,839 30 38,132 30 55,954 31 APAC (1) 8,458 18 11,705 18 22,641 18 33,391 18 Other Americas (1) 2,371 5 3,688 6 6,367 5 9,957 5 Hedging gains (losses) (22) 0 62 0 178 0 (54) 0 Total revenues $ 46,173 100 % $ 65,118 100 % $ 125,629 100 % $ 182,312 100 % (1) Regions represent Europe, the Middle East, and Africa ("EMEA"); Asia-Pacific ("APAC"); and Canada and Latin America ("Other Americas").

Financial Instruments (Tables)

Financial Instruments (Tables)	9 Months Ended
Financial Instruments (Tables)	Sep. 30, 2021
Fair Value Disclosures [Abstract]
Available-for-sale debt securities	The following tables summarize our debt securities, for which we did not elect the fair value option, by significant investment categories (in millions): As of December 31, 2020 Adjusted Gross Gross Fair Cash and Cash Marketable Level 2: Time deposits (1) $ 3,564 $ 0 $ 0 $ 3,564 $ 3,564 $ 0 Government bonds 55,156 793 (9) 55,940 2,527 53,413 Corporate debt securities 31,521 704 (2) 32,223 8 32,215 Mortgage-backed and asset-backed securities 16,767 364 (7) 17,124 0 17,124 Total $ 107,008 $ 1,861 $ (18) $ 108,851 $ 6,099 $ 102,752 As of September 30, 2021 Adjusted Gross Gross Fair Cash and Cash Marketable Level 2: Time deposits (1) $ 5,277 $ 0 $ 0 $ 5,277 $ 5,277 $ 0 Government bonds 53,793 371 (93) 54,071 3 54,068 Corporate debt securities 35,156 362 (51) 35,467 0 35,467 Mortgage-backed and asset-backed securities 18,327 172 (44) 18,455 0 18,455 Total $ 112,553 $ 905 $ (188) $ 113,270 $ 5,280 $ 107,990 (1) The majority of our time deposits are domestic deposits.
Investments by maturity date	The following table summarizes the estimated fair value of our investments in marketable debt securities by stated contractual maturity dates (in millions): As of Due in 1 year or less $ 19,074 Due in 1 year through 5 years 73,675 Due in 5 years through 10 years 4,207 Due after 10 years 13,993 Total $ 110,949
Schedule of unrealized loss on debt securities	The following tables present fair values and gross unrealized losses recorded to AOCI, 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, 2020 Less than 12 Months 12 Months or Greater Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized Government bonds $ 5,516 $ (9) $ 3 $ 0 $ 5,519 $ (9) Corporate debt securities 1,999 (1) 0 0 1,999 (1) Mortgage-backed and asset-backed securities 929 (5) 242 (2) 1,171 (7) Total $ 8,444 $ (15) $ 245 $ (2) $ 8,689 $ (17) As of September 30, 2021 Less than 12 Months 12 Months or Greater Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized Government bonds $ 28,507 $ (92) $ 54 $ (1) $ 28,561 $ (93) Corporate debt securities 11,293 (19) 245 (2) 11,538 (21) Mortgage-backed and asset-backed securities 8,371 (41) 188 (3) 8,559 (44) Total $ 48,171 $ (152) $ 487 $ (6) $ 48,658 $ (158)
Gains and losses on equity securities	Gains and losses reflected in other income (expense), net, for our marketable and non-marketable equity securities are summarized below (in millions): Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 Net gain (loss) on equity securities sold during the period $ (5) $ (36) $ 426 $ 545 Net unrealized gain (loss) on equity securities held as of the end of the period 1,904 2,157 2,114 9,185 Total gain (loss) recognized in other income (expense), net $ 1,899 $ 2,121 $ 2,540 $ 9,730
Cumulative net gains on equity securities sold	Equity Securities Sold Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 Total sale price $ 1,389 $ 1,199 $ 2,888 $ 4,553 Total initial cost 1,146 188 1,831 955 Cumulative net gains (1) $ 243 $ 1,011 $ 1,057 $ 3,598
Summary of unrealized gains and losses for marketable and non-marketable equity securities	The carrying values for our marketable and non-marketable equity securities are summarized below (in millions): As of December 31, 2020 Marketable Securities Non-Marketable Securities Total Total initial cost $ 2,227 $ 14,616 $ 16,843 Cumulative net gain (loss) (1) 3,631 4,277 7,908 Carrying value (2) $ 5,858 $ 18,893 $ 24,751 (1) Non-marketable equity securities cumulative net gain (loss) is comprised of $6.1 billion unrealized gains and $1.9 billion unrealized losses (including impairment). (2) The long-term portion of marketable equity securities of $429 million is included within other non-current assets. As of September 30, 2021 Marketable Securities (2) Non-Marketable Securities Total Total initial cost $ 2,823 $ 14,944 $ 17,767 Cumulative net gain (loss) (1) 4,954 9,194 14,148 Carrying value (2) $ 7,777 $ 24,138 $ 31,915 (1) Non-marketable equity securities cumulative net gain (loss) is comprised of $10.9 billion unrealized gains and $1.7 billion unrealized losses (including impairment). (2) The long-term portion of marketable equity securities of $443 million is included within other non-current assets.
Marketable equity securities	The following table summarizes marketable equity securities measured at fair value by significant investment categories (in millions): As of December 31, 2020 As of September 30, 2021 Cash and Cash Equivalents Marketable Cash and Cash Equivalents Marketable Level 1: Money market funds $ 12,210 $ 0 $ 10,732 $ 0 Marketable equity securities (1)(2) 0 5,470 0 7,430 12,210 5,470 10,732 7,430 Level 2: Mutual funds 0 388 0 347 Total $ 12,210 $ 5,858 $ 10,732 $ 7,777 (1) The balance as of December 31, 2020 and September 30, 2021 includes investments that were reclassified from non-marketable equity securities following the commencement of public market trading of the issuers or acquisition by public entities (certain of which are subject to short-term lock-up restrictions). (2) As of December 31, 2020 and September 30, 2021 the long-term portion of marketable equity securities of $429 million and $443 million, respectively, is included within other non-current assets.
Summary of unrealized gains and losses for non-marketable equity securities	The following is a summary of unrealized gains and losses recorded in other income (expense), net, and included as adjustments to the carrying value of non-marketable equity securities (in millions): Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 Unrealized gains $ 1,225 $ 1,260 $ 1,770 $ 6,245 Unrealized losses (including impairment) (27) (37) (1,413) (98) Total unrealized gain (loss) for non-marketable equity securities $ 1,198 $ 1,223 $ 357 $ 6,147
Schedule of gross notional amounts of derivative instruments	The gross notional amounts of our outstanding derivative instruments were as follows (in millions): As of December 31, 2020 As of September 30, 2021 Derivatives Designated as Hedging Instruments: Foreign exchange contracts Cash flow hedges $ 10,187 $ 16,058 Fair value hedges $ 1,569 $ 2,502 Net investment hedges $ 9,965 $ 9,934 Derivatives Not Designated as Hedging Instruments: Foreign exchange contracts $ 39,861 $ 36,763 Other contracts $ 2,399 $ 4,107
Schedule of derivative instruments	The fair values of our outstanding derivative instruments were as follows (in millions): As of December 31, 2020 Balance Sheet Location Fair Value of Fair Value of Total Fair Value Derivative Assets: Level 2: Foreign exchange contracts Other current and non-current assets $ 33 $ 316 $ 349 Other contracts Other current and non-current assets 0 16 16 Total $ 33 $ 332 $ 365 Derivative Liabilities: Level 2: Foreign exchange contracts Accrued expenses and other liabilities, current and non-current $ 395 $ 185 $ 580 Other contracts Accrued expenses and other liabilities, current and non-current 0 942 942 Total $ 395 $ 1,127 $ 1,522 As of September 30, 2021 Balance Sheet Location Fair Value of Fair Value of Total Fair Value Derivative Assets: Level 2: Foreign exchange contracts Other current and non-current assets $ 505 $ 63 $ 568 Other contracts Other current and non-current assets 0 65 65 Total $ 505 $ 128 $ 633 Derivative Liabilities: Level 2: Foreign exchange contracts Accrued expenses and other liabilities, current and non-current $ 1 $ 141 $ 142 Other contracts Accrued expenses and other liabilities, current and non-current 0 179 179 Total $ 1 $ 320 $ 321
Schedule of gain (loss) on derivative instruments	The gains (losses) on derivatives in cash flow hedging and net investment hedging relationships recognized in other comprehensive income ("OCI") are summarized below (in millions): Gains (Losses) Recognized in OCI on Derivatives Before Tax Effect Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 Derivatives in Cash Flow Hedging Relationship: Foreign exchange contracts Amount included in the assessment of effectiveness $ (37) $ 336 $ 331 $ 438 Amount excluded from the assessment of effectiveness (23) 18 (20) 63 Derivatives in Net Investment Hedging Relationship: Foreign exchange contracts Amount included in the assessment of effectiveness (371) 212 (412) 411 Total $ (431) $ 566 $ (101) $ 912 The effect of derivative instruments on income is summarized below (in millions): Gains (Losses) Recognized in Income Three Months Ended September 30, 2020 2021 Revenues Other income (expense), net Revenues Other income (expense), net Total amounts presented in the Consolidated Statements of Income in which the effects of cash flow and fair value hedges are recorded $ 46,173 $ 2,146 $ 65,118 $ 2,033 Gains (Losses) on Derivatives in Cash Flow Hedging Relationship: Foreign exchange contracts Amount of gains (losses) reclassified from AOCI to income $ (28) $ 0 $ 65 $ 0 Amount excluded from the assessment of effectiveness recognized in earnings based on an amortization approach 6 0 (3) 0 Gains (Losses) on Derivatives in Fair Value Hedging Relationship: Foreign exchange contracts Hedged items 0 14 0 (69) Derivatives designated as hedging instruments 0 (14) 0 69 Amount excluded from the assessment of effectiveness 0 0 0 2 Gains (Losses) on Derivatives in Net Investment Hedging Relationship: Foreign exchange contracts Amount excluded from the assessment of effectiveness 0 20 0 19 Gains (Losses) on Derivatives Not Designated as Hedging Instruments: Foreign exchange contracts 0 382 0 (148) Other Contracts 0 (181) 0 (88) Total gains (losses) $ (22) $ 221 $ 62 $ (215) Gains (Losses) Recognized in Income Nine Months Ended September 30, 2020 2021 Revenues Other income (expense), net Revenues Other income (expense), net Total amounts presented in the Consolidated Statements of Income in which the effects of cash flow and fair value hedges are recorded $ 125,629 $ 3,820 $ 182,312 $ 9,503 Gains (Losses) on Derivatives in Cash Flow Hedging Relationship: Foreign exchange contracts Amount of gains (losses) reclassified from AOCI to income $ 138 $ 0 $ (43) $ 0 Amount excluded from the assessment of effectiveness recognized in earnings based on an amortization approach 40 0 (11) 0 Gains (Losses) on Derivatives in Fair Value Hedging Relationship: Foreign exchange contracts Hedged items 0 6 0 (41) Derivatives designated as hedging instruments 0 (6) 0 41 Amount excluded from the assessment of effectiveness 0 2 0 6 Gains (Losses) on Derivatives in Net Investment Hedging Relationship: Foreign exchange contracts Amount excluded from the assessment of effectiveness 0 131 0 60 Gains (Losses) on Derivatives Not Designated as Hedging Instruments: Foreign exchange contracts 0 542 0 (552) Other Contracts 0 (420) 0 93 Total gains (losses) $ 178 $ 255 $ (54) $ (393)
Offsetting assets	Offsetting of Assets As of December 31, 2020 Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset 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 $ 397 $ (32) $ 365 $ (295) (1) $ (16) $ 0 $ 54 As of September 30, 2021 Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset 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 $ 667 $ (34) $ 633 $ (129) (1) $ (426) $ (13) $ 65
Offsetting liabilities	Offsetting of Liabilities As of December 31, 2020 Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset 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 $ 1,554 $ (32) $ 1,522 $ (295) (2) $ (1) $ (943) $ 283 As of September 30, 2021 Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Legal Rights to Offset 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 $ 355 $ (34) $ 321 $ (129) (2) $ (1) $ (173) $ 18 (2) The balances as of December 31, 2020 and September 30, 2021 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)	9 Months Ended
Debt (Tables)	Sep. 30, 2021
Debt Disclosure [Abstract]
Schedule of long-term debt	The total outstanding debt is summarized below (in millions, except percentages): Maturity Coupon Rate Effective Interest Rate As of December 31, 2020 As of Debt 2011-2020 Notes Issuances 2024 - 2060 0.45% - 3.38% 0.57% - 3.38% $ 14,000 $ 13,000 Future finance lease payments, net (1) 1,201 1,696 Total debt 15,201 14,696 Unamortized discount and debt issuance costs (169) (159) Less: Current portion of Notes (2) (999) 0 Less: Current portion future finance lease payments, net (1)(2) (101) (249) Total long-term debt $ 13,932 $ 14,288 (1) Net of imputed interest. (2) Total current portion of long-term debt is included within other accrued expenses and current liabilities. See Note 6.

Supplemental Financial Statem_2

Supplemental Financial Statement Information (Tables)	9 Months Ended
Supplemental Financial Statement Information (Tables)	Sep. 30, 2021
Balance Sheet Components Disclosure [Abstract]
Property and equipment, net	Property and equipment, net, consisted of the following (in millions): As of As of Land and buildings $ 49,732 $ 57,268 Information technology assets 45,906 53,549 Construction in progress 23,111 22,494 Leasehold improvements 7,516 8,391 Furniture and fixtures 197 202 Property and equipment, gross 126,462 141,904 Less: accumulated depreciation (41,713) (47,273) Property and equipment, net $ 84,749 $ 94,631
Accrued expenses and other current liabilities	Accrued expenses and other current liabilities consisted of the following (in millions): As of As of European Commission fines (1) $ 10,409 $ 10,073 Payables to brokers for unsettled investment trades 754 1,510 Accrued customer liabilities 3,118 3,039 Accrued purchases of property and equipment 2,197 2,309 Current operating lease liabilities 1,694 2,101 Other accrued expenses and current liabilities 10,459 11,081 Accrued expenses and other current liabilities $ 28,631 $ 30,113 (1) Includes the effects of foreign exchange and interest. See Note 9 for further details.
Components of accumulated other comprehensive income	The components of AOCI, net of income tax, were as follows (in millions): Foreign Currency Translation Adjustments Unrealized Gains (Losses) on Available-for-Sale Investments Unrealized Gains (Losses) on Cash Flow Hedges Total Balance as of December 31, 2019 $ (2,003) $ 812 $ (41) $ (1,232) Other comprehensive income (loss) before reclassifications 193 1,346 264 1,803 Amounts excluded from the assessment of hedge effectiveness recorded in AOCI 0 0 (20) (20) Amounts reclassified from AOCI 0 (391) (114) (505) Other comprehensive income (loss) 193 955 130 1,278 Balance as of September 30, 2020 $ (1,810) $ 1,767 $ 89 $ 46 Foreign Currency Translation Adjustments Unrealized Gains (Losses) on Available-for-Sale Investments Unrealized Gains (Losses) on Cash Flow Hedges Total Balance as of December 31, 2020 $ (864) $ 1,612 $ (115) $ 633 Other comprehensive income (loss) before reclassifications (671) (699) 366 (1,004) Amounts excluded from the assessment of hedge effectiveness recorded in AOCI 0 0 63 63 Amounts reclassified from AOCI 0 (121) 21 (100) Other comprehensive income (loss) (671) (820) 450 (1,041) Balance as of September 30, 2021 $ (1,535) $ 792 $ 335 $ (408)
Schedule of effects on net income of amounts reclassified from AOCI	The effects on net income of amounts reclassified from AOCI were as follows (in millions): Gains (Losses) Reclassified from AOCI to the Consolidated Statements of Income Three Months Ended Nine Months Ended September 30, September 30, AOCI Components Location 2020 2021 2020 2021 Unrealized gains (losses) on available-for-sale investments Other income (expense), net $ 93 $ 73 $ 496 $ 155 Benefit (provision) for income taxes (20) (16) (105) (34) Net of income tax 73 57 391 121 Unrealized gains (losses) on cash flow hedges Foreign exchange contracts Revenue (28) 65 138 (43) Interest rate contracts Other income (expense), net 1 1 4 4 Benefit (provision) for income taxes 4 (6) (28) 18 Net of income tax (23) 60 114 (21) Total amount reclassified, net of income tax $ 50 $ 117 $ 505 $ 100
Schedule of other income (expense), net	The components of other income (expense), net, were as follows (in millions): Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 Interest income $ 460 $ 387 $ 1,479 $ 1,121 Interest expense (1) (48) (77) (82) (229) Foreign currency exchange gain (loss), net (84) (139) (257) (77) Gain (loss) on debt securities, net 116 37 515 62 Gain (loss) on equity securities, net 1,899 2,121 2,540 9,730 Performance fees (135) (492) (204) (1,680) Income (loss) and impairment from equity method investments, net 26 188 46 285 Other (88) 8 (217) 291 Other income (expense), net $ 2,146 $ 2,033 $ 3,820 $ 9,503 (1) Interest expense is net of interest capitalized of $53 million and $40 million for the three months ended September 30, 2020 and 2021, respectively, and $162 million and $132 million for the nine months ended September 30, 2020 and 2021, respectively.

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	9 Months Ended
Goodwill and Other Intangible Assets (Tables)	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Carrying amount of goodwill	Changes in the carrying amount of goodwill for the nine months ended September 30, 2021 were as follows (in millions): Google Services Google Cloud Other Bets Total Balance as of December 31, 2020 $ 18,517 $ 1,957 $ 701 $ 21,175 Acquisitions 1,306 47 102 1,455 Foreign currency translation and other adjustments 4 0 (11) (7) Balance as of September 30, 2021 $ 19,827 $ 2,004 $ 792 $ 22,623
Information regarding purchased intangible assets	Information regarding purchased intangible assets were as follows (in millions): As of December 31, 2020 Gross Accumulated Net Patents and developed technology $ 4,639 $ 3,649 $ 990 Customer relationships 266 49 217 Trade names and other 699 461 238 Total $ 5,604 $ 4,159 $ 1,445 As of September 30, 2021 Gross Accumulated Net Patents and developed technology $ 4,818 $ 4,045 $ 773 Customer relationships 483 118 365 Trade names and other 946 535 411 Total $ 6,247 $ 4,698 $ 1,549
Expected amortization expense related to purchased intangible assets	As of September 30, 2021, expected amortization expense relating to purchased intangible assets for each of the next five years and thereafter was as follows (in millions): Remainder of 2021 $ 214 2022 512 2023 241 2024 215 2025 81 Thereafter 286 Total $ 1,549

Net Income Per Share (Tables)

Net Income Per Share (Tables)	9 Months Ended
Net Income Per Share (Tables)	Sep. 30, 2021
Earnings Per Share [Abstract]
Schedule of 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 September 30, 2020 2021 Class A Class B Class C Class A Class B Class C Basic net income per share: Numerator Allocation of undistributed earnings $ 4,973 $ 763 $ 5,511 $ 8,548 $ 1,291 $ 9,097 Denominator Number of shares used in per share computation 300,411 46,108 332,930 300,519 45,404 319,835 Basic net income per share $ 16.55 $ 16.55 $ 16.55 $ 28.44 $ 28.44 $ 28.44 Diluted net income per share: Numerator Allocation of undistributed earnings for basic computation $ 4,973 $ 763 $ 5,511 $ 8,548 $ 1,291 $ 9,097 Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares 763 0 0 1,291 0 0 Reallocation of undistributed earnings (53) (7) 53 (156) (20) 156 Allocation of undistributed earnings $ 5,683 $ 756 $ 5,564 $ 9,683 $ 1,271 $ 9,253 Denominator Number of shares used in basic computation 300,411 46,108 332,930 300,519 45,404 319,835 Weighted-average effect of dilutive securities Add: Conversion of Class B to Class A common shares outstanding 46,108 0 0 45,404 0 0 Restricted stock units and other contingently issuable shares 47 0 6,355 14 0 10,747 Number of shares used in per share computation 346,566 46,108 339,285 345,937 45,404 330,582 Diluted net income per share $ 16.40 $ 16.40 $ 16.40 $ 27.99 $ 27.99 $ 27.99 Nine Months Ended September 30, 2020 2021 Class A Class B Class C Class A Class B Class C Basic net income per share: Numerator Allocation of undistributed earnings $ 11,004 $ 1,697 $ 12,341 $ 24,867 $ 3,776 $ 26,748 Denominator Number of shares used in per share computation 299,934 46,266 336,361 300,482 45,622 323,208 Basic net income per share $ 36.69 $ 36.69 $ 36.69 $ 82.76 $ 82.76 $ 82.76 Diluted net income per share: Numerator Allocation of undistributed earnings for basic computation $ 11,004 $ 1,697 $ 12,341 $ 24,867 $ 3,776 $ 26,748 Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares 1,697 0 0 3,776 0 0 Reallocation of undistributed earnings (103) (14) 103 (424) (56) 424 Allocation of undistributed earnings $ 12,598 $ 1,683 $ 12,444 $ 28,219 $ 3,720 $ 27,172 Denominator Number of shares used in basic computation 299,934 46,266 336,361 300,482 45,622 323,208 Weighted-average effect of dilutive securities Add: Conversion of Class B to Class A common shares outstanding 46,266 0 0 45,622 0 0 Restricted stock units and other contingently issuable shares 105 0 5,715 16 0 10,073 Number of shares used in per share computation 346,305 46,266 342,076 346,120 45,622 333,281 Diluted net income per share $ 36.38 $ 36.38 $ 36.38 $ 81.53 $ 81.53 $ 81.53

Compensation Plans (Tables)

Compensation Plans (Tables)	9 Months Ended
Compensation Plans (Tables)	Sep. 30, 2021
Equity [Abstract]
Schedule of restricted stock activity	The following table summarizes the activities for our unvested restricted stock units ("RSUs") in Alphabet stock for the nine months ended September 30, 2021: Unvested Restricted Stock Units Number of Weighted- Unvested as of December 31, 2020 19,288,793 $ 1,262.13 Granted 9,849,733 $ 1,883.76 Vested (7,984,196) $ 1,334.16 Forfeited/canceled (1,471,948) $ 1,411.50 Unvested as of September 30, 2021 19,682,382 $ 1,538.30

Income Taxes (Tables)

Income Taxes (Tables)	9 Months Ended
Income Taxes (Tables)	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Provision for income taxes and effective tax rate	The following table presents our provision for income taxes (in millions, except for effective tax rate): Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 Provision for income taxes $ 2,112 $ 4,128 $ 4,351 $ 10,941 Effective tax rate 15.8 % 17.9 % 14.8 % 16.5 %

Information about Segments an_2

Information about Segments and Geographic Areas (Tables)	9 Months Ended
Information about Segments and Geographic Areas (Tables)	Sep. 30, 2021
Segment Reporting [Abstract]
Schedule of segment information by segment	Information about segments during the periods presented were as follows (in millions). For comparative purposes, amounts in prior periods have been recast: Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 Revenues: Google Services $ 42,573 $ 59,884 $ 115,762 $ 168,129 Google Cloud 3,444 4,990 9,228 13,665 Other Bets 178 182 461 572 Hedging gains (losses) (22) 62 178 (54) Total revenues $ 46,173 $ 65,118 $ 125,629 $ 182,312 Three Months Ended Nine Months Ended September 30, September 30, 2020 2021 2020 2021 Operating income (loss): Google Services $ 14,453 $ 23,973 $ 35,540 $ 65,862 Google Cloud (1,208) (644) (4,364) (2,209) Other Bets (1,103) (1,288) (3,340) (3,831) Corporate costs, unallocated (929) (1,010) (2,263) (2,993) Total income from operations $ 11,213 $ 21,031 $ 25,573 $ 56,829
Schedule of long-lived assets by geographic area	The following table presents our long-lived assets by geographic area, which includes property and equipment, net and operating lease assets (in millions): As of As of Long-lived assets: United States $ 69,315 $ 77,281 International 27,645 30,268 Total long-lived assets $ 96,960 $ 107,549

Nature of Operations and Summ_3

Nature of Operations and Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Millions	Jan. 01, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Change in Accounting Estimate [Line Items]
Allowance for credit losses on accounts receivable		$ 567		$ 567		$ 789
Net income		$ 18,936	$ 11,247	$ 55,391	$ 25,042
Basic net income per share (in dollars per share)		$ 28.44	$ 16.55	$ 82.76	$ 36.69
Diluted net income per share (in dollars per share)		$ 27.99	$ 16.40	$ 81.53	$ 36.38
Server Equipment
Change in Accounting Estimate [Line Items]
Useful life	4 years					3 years
Network Equipment
Change in Accounting Estimate [Line Items]
Useful life	5 years					3 years
Service Life
Change in Accounting Estimate [Line Items]
Reduction in depreciation expense		$ 591		$ 2,100
Net income		$ 460		$ 1,700
Basic net income per share (in dollars per share)		$ 0.69		$ 2.50
Diluted net income per share (in dollars per share)		$ 0.68		$ 2.46

Revenues (Revenue by Segment) (

Revenues (Revenue by Segment) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Revenues	$ 65,118	$ 46,173	$ 182,312	$ 125,629
Hedging gains (losses)	62	(22)	(54)	178
Google Services
Segment Reporting Information [Line Items]
Revenues	59,884	42,573	168,129	115,762
Google Services \| Google Search & other
Segment Reporting Information [Line Items]
Revenues	37,926	26,338	105,650	72,159
Google Services \| YouTube ads
Segment Reporting Information [Line Items]
Revenues	7,205	5,037	20,212	12,887
Google Services \| Google Network
Segment Reporting Information [Line Items]
Revenues	7,999	5,720	22,396	15,679
Google Services \| Google advertising
Segment Reporting Information [Line Items]
Revenues	53,130	37,095	148,258	100,725
Google Services \| Google other
Segment Reporting Information [Line Items]
Revenues	6,754	5,478	19,871	15,037
Google Cloud
Segment Reporting Information [Line Items]
Revenues	4,990	3,444	13,665	9,228
Other Bets
Segment Reporting Information [Line Items]
Revenues	$ 182	$ 178	$ 572	$ 461

Revenues (Revenue by Geographic

Revenues (Revenue by Geographic Location) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 65,118	$ 46,173	$ 182,312	$ 125,629
Hedging gains (losses)	62	(22)	(54)	178
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	29,824	21,442	83,064	58,311
EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	19,839	13,924	55,954	38,132
APAC
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	11,705	8,458	33,391	22,641
Other Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 3,688	$ 2,371	$ 9,957	$ 6,367
Geographic Concentration Risk \| Revenue Benchmark
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of total revenue	100.00%	100.00%	100.00%	100.00%
Geographic Concentration Risk \| Revenue Benchmark \| United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of total revenue	46.00%	47.00%	46.00%	47.00%
Geographic Concentration Risk \| Revenue Benchmark \| EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of total revenue	30.00%	30.00%	31.00%	30.00%
Geographic Concentration Risk \| Revenue Benchmark \| APAC
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of total revenue	18.00%	18.00%	18.00%	18.00%
Geographic Concentration Risk \| Revenue Benchmark \| Other Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of total revenue	6.00%	5.00%	5.00%	5.00%

Revenues (Narrative) (Details)

Revenues (Narrative) (Details) - USD ($) $ in Billions	9 Months Ended
Revenues (Narrative) (Details) - USD ($) $ in Billions	Sep. 30, 2021	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Total deferred revenue	$ 3.5	$ 3
Deferred revenue recognized during period	2.1
Revenue not yet recognized	$ 37.1
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Expected timing of revenue recognition	24 months
Expected timing of revenue recognition, percentage	50.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Expected timing of revenue recognition
Expected timing of revenue recognition, percentage	50.00%

Financial Instruments (Narrativ

Financial Instruments (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
Financial Instruments (Narrative) (Details) - USD ($)	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Financial Instruments and Fair Value [Line Items]
Fair value of debt securities with fair value option elected	$ 3,000,000,000		$ 3,000,000,000		$ 2,000,000,000
Gross realized gains on the sale of our marketable securities	109,000,000	$ 127,000,000	360,000,000	$ 690,000,000
Gross realized losses on the sale of our marketable securities	29,000,000	$ 8,000,000	180,000,000	135,000,000
Other-than-temporary impairment losses recognized			0	$ 0
Non-marketable equity securities	24,138,000,000		24,138,000,000		18,893,000,000
Cumulative net gain of non-marketable securities	10,900,000,000		10,900,000,000		6,100,000,000
Equity method investments	1,500,000,000		1,500,000,000		1,400,000,000
Foreign currency gain (loss) to be reclassified during next 12 months	357,000,000		357,000,000
Debt Securities
Financial Instruments and Fair Value [Line Items]
Net gain on debt securities with fair value option elected			$ 22,000,000		$ 87,000,000
Cash flow hedges \| Foreign exchange contracts
Financial Instruments and Fair Value [Line Items]
Foreign exchange option contracts, maximum maturities			24 months
Valuation, Market Approach
Financial Instruments and Fair Value [Line Items]
Non-marketable equity securities	2,500,000,000		$ 2,500,000,000
Cumulative net gain of non-marketable securities	$ 1,200,000,000		$ 1,200,000,000

Financial Instruments (Debt Sec

Financial Instruments (Debt Securities) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Cash and Cash Equivalents	$ 10,732	$ 12,210
Fair Value	110,949
Level 2
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Adjusted Cost	112,553	107,008
Gross Unrealized Gains	905	1,861
Gross Unrealized Losses	(188)	(18)
Fair Value	113,270	108,851
Cash and Cash Equivalents	5,280	6,099
Fair Value	107,990	102,752
Level 2 \| Time deposits
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Adjusted Cost	5,277	3,564
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	5,277	3,564
Cash and Cash Equivalents	5,277	3,564
Fair Value	0	0
Level 2 \| Government bonds
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Adjusted Cost	53,793	55,156
Gross Unrealized Gains	371	793
Gross Unrealized Losses	(93)	(9)
Fair Value	54,071	55,940
Cash and Cash Equivalents	3	2,527
Fair Value	54,068	53,413
Level 2 \| Corporate debt securities
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Adjusted Cost	35,156	31,521
Gross Unrealized Gains	362	704
Gross Unrealized Losses	(51)	(2)
Fair Value	35,467	32,223
Cash and Cash Equivalents	0	8
Fair Value	35,467	32,215
Level 2 \| Mortgage-backed and asset-backed securities
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Adjusted Cost	18,327	16,767
Gross Unrealized Gains	172	364
Gross Unrealized Losses	(44)	(7)
Fair Value	18,455	17,124
Cash and Cash Equivalents	0	0
Fair Value	$ 18,455	$ 17,124

Financial Instruments (Contract

Financial Instruments (Contractual Maturity Date of Marketable Debt Securities) (Details) $ in Millions	Sep. 30, 2021USD ($)
Fair Value Disclosures [Abstract]
Due in 1 year or less	$ 19,074
Due in 1 year through 5 years	73,675
Due in 5 years through 10 years	4,207
Due after 10 years	13,993
Total	$ 110,949

Financial Instruments (Gross Un

Financial Instruments (Gross Unrealized Losses and Fair Values for Investments in Unrealized Loss Position) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Investments, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	$ 48,171	$ 8,444
Less than 12 Months, Unrealized Loss	(152)	(15)
12 Months or Greater, Fair Value	487	245
12 Months or Greater, Unrealized Loss	(6)	(2)
Total Fair Value	48,658	8,689
Total Unrealized Loss	(158)	(17)
Government bonds
Investments, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	28,507	5,516
Less than 12 Months, Unrealized Loss	(92)	(9)
12 Months or Greater, Fair Value	54	3
12 Months or Greater, Unrealized Loss	(1)	0
Total Fair Value	28,561	5,519
Total Unrealized Loss	(93)	(9)
Corporate debt securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	11,293	1,999
Less than 12 Months, Unrealized Loss	(19)	(1)
12 Months or Greater, Fair Value	245	0
12 Months or Greater, Unrealized Loss	(2)	0
Total Fair Value	11,538	1,999
Total Unrealized Loss	(21)	(1)
Mortgage-backed and asset-backed securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	8,371	929
Less than 12 Months, Unrealized Loss	(41)	(5)
12 Months or Greater, Fair Value	188	242
12 Months or Greater, Unrealized Loss	(3)	(2)
Total Fair Value	8,559	1,171
Total Unrealized Loss	$ (44)	$ (7)

Financial Instruments (Measurem

Financial Instruments (Measurement Alternative Investments) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Gains and Losses on Marketable and Non-Marketable Equity Securities
Net gain (loss) on equity securities sold during the period	$ (36)	$ (5)	$ 545	$ 426
Net unrealized gain (loss) on equity securities held as of the end of the period	2,157	1,904	9,185	2,114
Total gain (loss) recognized in other income (expense), net	$ 2,121	$ 1,899	$ 9,730	$ 2,540

Financial Instruments (Carrying

Financial Instruments (Carrying Amount of Equity Securities) (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Debt and Equity Securities, FV-NI [Line Items]
Total sale price	$ 1,199		$ 1,389	$ 4,553	$ 2,888
Total initial cost	188		1,146	955	1,831
Cumulative net gains	1,011		$ 243	3,598	$ 1,057
Marketable Securities
Total initial cost	2,823			2,823		$ 2,227
Cumulative net gain (loss)	4,954			4,954		3,631
Carrying value	7,777			7,777		5,858
Non-Marketable Securities
Total initial cost	14,944			14,944		14,616
Cumulative net gain (loss)	9,194			9,194		4,277
Carrying value	24,138			24,138		18,893
Total
Total initial cost	17,767			17,767		16,843
Cumulative net gain (loss)	14,148			14,148		7,908
Carrying value	31,915			31,915		24,751
Cumulative losses from equity derivatives		$ 684
Cumulative net gain of non-marketable securities	10,900			10,900		6,100
Unrealized loss of non-marketable securities	1,700			1,700		1,900
Other Noncurrent Assets
Marketable Securities
Carrying value	$ 443			$ 443		$ 429

Financial Instruments (Marketab

Financial Instruments (Marketable Equity Securities) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents	$ 10,732	$ 12,210
Marketable Equity Securities	7,777	5,858
Marketable Securities	7,777	5,858
Other Noncurrent Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Equity Securities	443	429
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents	10,732	12,210
Marketable Equity Securities	7,430	5,470
Marketable Securities	7,430	5,470
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents	5,280	6,099
Money market funds \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents	10,732	12,210
Mutual funds \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Equity Securities	$ 347	$ 388

Financial Instruments (Non-Mark

Financial Instruments (Non-Marketable Equity Securities) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Fair Value Disclosures [Abstract]
Unrealized gains	$ 1,260	$ 1,225	$ 6,245	$ 1,770
Unrealized losses (including impairment)	(37)	(27)	(98)	(1,413)
Total unrealized gain (loss) for non-marketable equity securities	$ 1,223	$ 1,198	$ 6,147	$ 357

Financial Instruments (Derivati

Financial Instruments (Derivative Notional Amounts) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Foreign exchange contracts \| Derivatives Designated as Hedging Instruments: \| Cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount	$ 16,058	$ 10,187
Foreign exchange contracts \| Derivatives Designated as Hedging Instruments: \| Fair value hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount	2,502	1,569
Foreign exchange contracts \| Derivatives Designated as Hedging Instruments: \| Net investment hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount	9,934	9,965
Foreign exchange contracts \| Derivatives Not Designated as Hedging Instruments:
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount	36,763	39,861
Other contracts \| Derivatives Not Designated as Hedging Instruments:
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount	$ 4,107	$ 2,399

Financial Instruments (Fair Val

Financial Instruments (Fair Values of Outstanding Derivative Instruments) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Derivative Assets:
Derivative Assets	$ 667	$ 397
Derivative Liabilities:
Derivative Liabilities	355	1,554
Level 2
Derivative Assets:
Derivative Assets	633	365
Derivative Liabilities:
Derivative Liabilities	321	1,522
Level 2 \| Other current and non-current assets
Derivative Assets:
Derivative Assets	568
Level 2 \| Other current and non-current assets \| Foreign exchange contracts
Derivative Assets:
Derivative Assets		349
Level 2 \| Other current and non-current assets \| Other contracts
Derivative Assets:
Derivative Assets	65	16
Level 2 \| Accrued expenses and other liabilities, current and non-current
Derivative Liabilities:
Derivative Liabilities	142
Level 2 \| Accrued expenses and other liabilities, current and non-current \| Foreign exchange contracts
Derivative Liabilities:
Derivative Liabilities		580
Level 2 \| Accrued expenses and other liabilities, current and non-current \| Other contracts
Derivative Liabilities:
Derivative Liabilities	179	942
Fair Value of Derivatives Designated as Hedging Instruments \| Level 2
Derivative Assets:
Derivative Assets	505	33
Derivative Liabilities:
Derivative Liabilities	1	395
Fair Value of Derivatives Designated as Hedging Instruments \| Level 2 \| Other current and non-current assets
Derivative Assets:
Derivative Assets	505
Fair Value of Derivatives Designated as Hedging Instruments \| Level 2 \| Other current and non-current assets \| Foreign exchange contracts
Derivative Assets:
Derivative Assets		33
Fair Value of Derivatives Designated as Hedging Instruments \| Level 2 \| Other current and non-current assets \| Other contracts
Derivative Assets:
Derivative Assets	0	0
Fair Value of Derivatives Designated as Hedging Instruments \| Level 2 \| Accrued expenses and other liabilities, current and non-current
Derivative Liabilities:
Derivative Liabilities	1
Fair Value of Derivatives Designated as Hedging Instruments \| Level 2 \| Accrued expenses and other liabilities, current and non-current \| Foreign exchange contracts
Derivative Liabilities:
Derivative Liabilities		395
Fair Value of Derivatives Designated as Hedging Instruments \| Level 2 \| Accrued expenses and other liabilities, current and non-current \| Other contracts
Derivative Liabilities:
Derivative Liabilities	0	0
Fair Value of Derivatives Not Designated as Hedging Instruments \| Level 2
Derivative Assets:
Derivative Assets	128	332
Derivative Liabilities:
Derivative Liabilities	320	1,127
Fair Value of Derivatives Not Designated as Hedging Instruments \| Level 2 \| Other current and non-current assets
Derivative Assets:
Derivative Assets	63
Fair Value of Derivatives Not Designated as Hedging Instruments \| Level 2 \| Other current and non-current assets \| Foreign exchange contracts
Derivative Assets:
Derivative Assets		316
Fair Value of Derivatives Not Designated as Hedging Instruments \| Level 2 \| Other current and non-current assets \| Other contracts
Derivative Assets:
Derivative Assets	65	16
Fair Value of Derivatives Not Designated as Hedging Instruments \| Level 2 \| Accrued expenses and other liabilities, current and non-current
Derivative Liabilities:
Derivative Liabilities	141
Fair Value of Derivatives Not Designated as Hedging Instruments \| Level 2 \| Accrued expenses and other liabilities, current and non-current \| Foreign exchange contracts
Derivative Liabilities:
Derivative Liabilities		185
Fair Value of Derivatives Not Designated as Hedging Instruments \| Level 2 \| Accrued expenses and other liabilities, current and non-current \| Other contracts
Derivative Liabilities:
Derivative Liabilities	$ 179	$ 942

Financial Instruments (Effect o

Financial Instruments (Effect of Derivative Instruments on Income and Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Foreign exchange contracts
Revenues	$ 65,118	$ 46,173	$ 182,312	$ 125,629
Other income (expense), net	2,033	2,146	9,503	3,820
Revenues
Foreign exchange contracts
Total gains (losses)	62	(22)	(54)	178
Other income (expense), net
Foreign exchange contracts
Total gains (losses)	(215)	221	(393)	255
Foreign exchange contracts
Foreign exchange contracts
Total	566	(431)	912	(101)
Foreign exchange contracts \| Revenues \| Fair Value of Derivatives Not Designated as Hedging Instruments
Foreign exchange contracts
Derivatives not designated as hedging instruments	0	0	0	0
Foreign exchange contracts \| Other income (expense), net \| Fair Value of Derivatives Not Designated as Hedging Instruments
Foreign exchange contracts
Derivatives not designated as hedging instruments	(148)	382	(552)	542
Other derivatives \| Revenues \| Fair Value of Derivatives Not Designated as Hedging Instruments
Foreign exchange contracts
Derivatives not designated as hedging instruments	0	0	0	0
Other derivatives \| Other income (expense), net \| Fair Value of Derivatives Not Designated as Hedging Instruments
Foreign exchange contracts
Derivatives not designated as hedging instruments	(88)	(181)	93	(420)
Derivatives in Cash Flow Hedging Relationship \| Foreign exchange contracts
Foreign exchange contracts
Amount included in the assessment of effectiveness	336	(37)	438	331
Amount excluded from the assessment of effectiveness	18	(23)	63	(20)
Derivatives in Cash Flow Hedging Relationship \| Foreign exchange contracts \| Revenues
Foreign exchange contracts
Amount of gains (losses) reclassified from AOCI to income	65	(28)	(43)	138
Amount excluded from the assessment of effectiveness recognized in earnings based on an amortization approach	(3)	6	(11)	40
Derivatives in Cash Flow Hedging Relationship \| Foreign exchange contracts \| Other income (expense), net
Foreign exchange contracts
Amount of gains (losses) reclassified from AOCI to income	0	0	0	0
Amount excluded from the assessment of effectiveness recognized in earnings based on an amortization approach	0	0	0	0
Derivatives in Fair Value Hedging Relationship \| Foreign exchange contracts \| Revenues
Foreign exchange contracts
Hedged items	0	0	0	0
Derivatives designated as hedging instruments	0	0	0	0
Amount excluded from the assessment of effectiveness	0	0	0	0
Derivatives in Fair Value Hedging Relationship \| Foreign exchange contracts \| Other income (expense), net
Foreign exchange contracts
Hedged items	(69)	14	(41)	6
Derivatives designated as hedging instruments	69	(14)	41	(6)
Amount excluded from the assessment of effectiveness	2	0	6	2
Derivatives in Net Investment Hedging Relationship: \| Foreign exchange contracts
Foreign exchange contracts
Amount included in the assessment of effectiveness	212	(371)	411	(412)
Derivatives in Net Investment Hedging Relationship: \| Foreign exchange contracts \| Revenues
Foreign exchange contracts
Amount excluded from the assessment of effectiveness	0	0	0	0
Derivatives in Net Investment Hedging Relationship: \| Foreign exchange contracts \| Other income (expense), net
Foreign exchange contracts
Amount excluded from the assessment of effectiveness	$ 19	$ 20	$ 60	$ 131

Financial Instruments (Offsetti

Financial Instruments (Offsetting of Financial Assets and Financial Liabilities) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Offsetting of Assets
Gross Amounts of Recognized Assets	$ 667	$ 397
Gross Amounts Offset in the Consolidated Balance Sheets	(34)	(32)
Net Presented in the Consolidated Balance Sheets	633	365
Financial Instruments	(129)	(295)
Cash Collateral Received	(426)	(16)
Non-Cash Collateral Received	(13)	0
Net Assets Exposed	65	54
Offsetting of Liabilities
Gross Amounts of Recognized Liabilities	355	1,554
Gross Amounts Offset in the Consolidated Balance Sheets	(34)	(32)
Net Presented in the Consolidated Balance Sheets	321	1,522
Financial Instruments	(129)	(295)
Cash Collateral Pledged	(1)	(1)
Non-Cash Collateral Pledged	(173)	(943)
Net Liabilities	$ 18	$ 283

Variable Interest Entities (Nar

Variable Interest Entities (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended
	Jun. 30, 2021	Sep. 30, 2021	Dec. 31, 2020
Variable Interest Entity [Line Items]
Assets not available for use		$ 347,403	$ 319,616
Liabilities with no recourse		102,836	97,072
Noncontrolling interest		4,400	3,900
Variable Interest Entity, Primary Beneficiary \| Waymo
Variable Interest Entity [Line Items]
Additional funding	$ 2,500
Nonrecourse \| Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Liabilities with no recourse		2,500	2,300
Asset Pledged as Collateral \| Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Assets not available for use		$ 6,800	$ 5,700

Debt (Narrative) (Details)

Debt (Narrative) (Details)	1 Months Ended
Debt (Narrative) (Details)	Apr. 30, 2021USD ($)Tranche	Sep. 30, 2021USD ($)	Jun. 30, 2021USD ($)	Dec. 31, 2020USD ($)
Debt Instrument [Line Items]
Commercial paper		$ 0		$ 0
Estimated fair value of long-term debt		12,300,000,000		14,000,000,000
Commercial Paper
Debt Instrument [Line Items]
Short-term debt, maximum borrowing capacity		10,000,000,000	$ 5,000,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing on lines of credit		10,000,000,000
Line of credit drawn		$ 0		$ 0
Number of credit facilities \| Tranche	2
Revolving Credit Facility \| Credit Facility Due July 2023
Debt Instrument [Line Items]
Maximum borrowing on lines of credit	$ 4,000,000,000
Revolving Credit Facility \| Credit Facility Due April 2022
Debt Instrument [Line Items]
Maximum borrowing on lines of credit	4,000,000,000
Revolving Credit Facility \| Credit Facility Due April 2026
Debt Instrument [Line Items]
Maximum borrowing on lines of credit	$ 6,000,000,000

Debt (Long-Term Debt) (Details)

Debt (Long-Term Debt) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Debt
Future finance lease payments, net	$ 1,696	$ 1,201
Total debt	14,696	15,201
Unamortized discount and debt issuance costs	(159)	(169)
Less: Current portion of Notes	0	(999)
Less: Current portion of future finance lease payments, net	(249)	(101)
Long-term debt	14,288	13,932
2011-2020 Notes Issuances
Debt
Notes issuances	$ 13,000	$ 14,000
2011-2020 Notes Issuances \| Minimum
Debt
Coupon Rate	0.45%
Effective Interest Rate	0.57%
2011-2020 Notes Issuances \| Maximum
Debt
Coupon Rate	3.38%
Effective Interest Rate	3.38%

Supplemental Financial Statem_3

Supplemental Financial Statement Information (Property and Equipment) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment, Net [Abstract]
Property and equipment, gross	$ 141,904	$ 126,462
Less: accumulated depreciation	(47,273)	(41,713)
Property and equipment, net	94,631	84,749
Land and buildings
Property, Plant and Equipment, Net [Abstract]
Property and equipment, gross	57,268	49,732
Information technology assets
Property, Plant and Equipment, Net [Abstract]
Property and equipment, gross	53,549	45,906
Construction in progress
Property, Plant and Equipment, Net [Abstract]
Property and equipment, gross	22,494	23,111
Leasehold improvements
Property, Plant and Equipment, Net [Abstract]
Property and equipment, gross	8,391	7,516
Furniture and fixtures
Property, Plant and Equipment, Net [Abstract]
Property and equipment, gross	$ 202	$ 197

Supplemental Financial Statem_4

Supplemental Financial Statement Information (Accrued Expenses and Other Current Liabilities) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Balance Sheet Components Disclosure [Abstract]
European Commission fines	$ 10,073	$ 10,409
Payables to brokers for unsettled investment trades	1,510	754
Accrued customer liabilities	3,039	3,118
Accrued purchases of property and equipment	2,309	2,197
Current operating lease liabilities	2,101	1,694
Other accrued expenses and current liabilities	11,081	10,459
Accrued expenses and other current liabilities	$ 30,113	$ 28,631

Supplemental Financial Statem_5

Supplemental Financial Statement Information (Components of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Components of AOCI, net of tax
Beginning Balance	$ 222,544	$ 201,442
Other comprehensive income (loss) before reclassifications	(1,004)	1,803
Amounts excluded from the assessment of hedge effectiveness recorded in AOCI	63	(20)
Amounts reclassified from AOCI	(100)	(505)
Other comprehensive income (loss)	(1,041)	1,278
Ending Balance	244,567	212,920
Total
Components of AOCI, net of tax
Beginning Balance	633	(1,232)
Ending Balance	(408)	46
Foreign Currency Translation Adjustments
Components of AOCI, net of tax
Beginning Balance	(864)	(2,003)
Other comprehensive income (loss) before reclassifications	(671)	193
Amounts excluded from the assessment of hedge effectiveness recorded in AOCI	0	0
Amounts reclassified from AOCI	0	0
Other comprehensive income (loss)	(671)	193
Ending Balance	(1,535)	(1,810)
Unrealized Gains (Losses) on Available-for-Sale Investments
Components of AOCI, net of tax
Beginning Balance	1,612	812
Other comprehensive income (loss) before reclassifications	(699)	1,346
Amounts excluded from the assessment of hedge effectiveness recorded in AOCI	0	0
Amounts reclassified from AOCI	(121)	(391)
Other comprehensive income (loss)	(820)	955
Ending Balance	792	1,767
Unrealized Gains (Losses) on Cash Flow Hedges
Components of AOCI, net of tax
Beginning Balance	(115)	(41)
Other comprehensive income (loss) before reclassifications	366	264
Amounts excluded from the assessment of hedge effectiveness recorded in AOCI	63	(20)
Amounts reclassified from AOCI	21	(114)
Other comprehensive income (loss)	450	130
Ending Balance	$ 335	$ 89

Supplemental Financial Statem_6

Supplemental Financial Statement Information (Effects on Net Income of Amounts Reclassified from AOCI) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue	$ 65,118	$ 46,173	$ 182,312	$ 125,629
Other income (expense), net	2,033	2,146	9,503	3,820
Benefit (provision) for income taxes	(4,128)	(2,112)	(10,941)	(4,351)
Net income	18,936	11,247	55,391	25,042
Gains (Losses) Reclassified from AOCI to the Consolidated Statements of Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income	117	50	100	505
Gains (Losses) Reclassified from AOCI to the Consolidated Statements of Income \| Unrealized gains (losses) on available-for-sale investments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other income (expense), net	73	93	155	496
Benefit (provision) for income taxes	(16)	(20)	(34)	(105)
Net income	57	73	121	391
Gains (Losses) Reclassified from AOCI to the Consolidated Statements of Income \| Unrealized gains (losses) on cash flow hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Benefit (provision) for income taxes	(6)	4	18	(28)
Net income	60	(23)	(21)	114
Gains (Losses) Reclassified from AOCI to the Consolidated Statements of Income \| Unrealized gains (losses) on cash flow hedges \| Foreign exchange contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue	65	(28)	(43)	138
Gains (Losses) Reclassified from AOCI to the Consolidated Statements of Income \| Unrealized gains (losses) on cash flow hedges \| Interest rate contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other income (expense), net	$ 1	$ 1	$ 4	$ 4

Supplemental Financial Statem_7

Supplemental Financial Statement Information (Schedule of Other Income (Expense), Net) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Balance Sheet Components Disclosure [Abstract]
Interest income	$ 387	$ 460	$ 1,121	$ 1,479
Interest expense	(77)	(48)	(229)	(82)
Foreign currency exchange losses, net	(139)	(84)	(77)	(257)
Gain (loss) on debt securities, net	37	116	62	515
Gain (loss) on equity securities, net	2,121	1,899	9,730	2,540
Performance fees	(492)	(135)	(1,680)	(204)
Income (loss) and impairment from equity method investments, net	188	26	285	46
Other	8	(88)	291	(217)
Other income (expense), net	2,033	2,146	9,503	3,820
Interest costs capitalized	$ 40	$ 53	$ 132	$ 162

Acquisitions (Details)

Acquisitions (Details) - USD ($) $ in Millions	1 Months Ended
Acquisitions (Details) - USD ($) $ in Millions	Jan. 31, 2021	Sep. 30, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Goodwill		$ 22,623	$ 21,175
Fitbit
Business Acquisition [Line Items]
Total consideration transferred	$ 2,100
Cash acquired	440
Acquired intangible assets	590
Goodwill	1,200
Net liabilities assumed	$ 92

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets (Goodwill Rollforward) (Details) $ in Millions	9 Months Ended
	Sep. 30, 2021USD ($)
Changes in Carrying Amount of Goodwill
Balance as of December 31, 2020	$ 21,175
Acquisitions	1,455
Foreign currency translation and other adjustments	(7)
Balance as of September 30, 2021	22,623
Google Services
Changes in Carrying Amount of Goodwill
Balance as of December 31, 2020	18,517
Acquisitions	1,306
Foreign currency translation and other adjustments	4
Balance as of September 30, 2021	19,827
Google Cloud
Changes in Carrying Amount of Goodwill
Balance as of December 31, 2020	1,957
Acquisitions	47
Foreign currency translation and other adjustments	0
Balance as of September 30, 2021	2,004
Other Bets
Changes in Carrying Amount of Goodwill
Balance as of December 31, 2020	701
Acquisitions	102
Foreign currency translation and other adjustments	(11)
Balance as of September 30, 2021	$ 792

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets (Acquisition-Related Intangible Assets that are being Amortized) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 6,247		$ 6,247		$ 5,604
Accumulated Amortization	4,698		4,698		4,159
Net Carrying Amount	1,549		1,549		1,445
Patents and developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,818		4,818		4,639
Accumulated Amortization	4,045		4,045		3,649
Net Carrying Amount	773		$ 773		990
Acquired intangible assets, weighted-average useful life			4 years
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	483		$ 483		266
Accumulated Amortization	118		118		49
Net Carrying Amount	365		$ 365		217
Acquired intangible assets, weighted-average useful life			4 years 3 months 18 days
Trade names and other
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	946		$ 946		699
Accumulated Amortization	535		535		461
Net Carrying Amount	411		$ 411		$ 238
Acquired intangible assets, weighted-average useful life			9 years 10 months 24 days
Acquisition-related intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of acquisition-related intangible assets	$ 219	$ 189	$ 651	$ 587

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets (Expected Amortization Expense for Acquisition-Related Intangible Assets) (Details) $ in Millions	Sep. 30, 2021USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Remainder of 2021	$ 214
2022	512
2023	241
2024	215
2025	81
Thereafter	286
Total	$ 1,549

Contingencies (Details)

Contingencies (Details) € in Billions, $ in Billions	Mar. 20, 2019EUR (€)	Mar. 20, 2019USD ($)	Jun. 30, 2018EUR (€)	Jun. 30, 2018USD ($)	Jun. 27, 2017EUR (€)	Jun. 27, 2017USD ($)	Mar. 31, 2019USD ($)
European Commission Antitrust Investigation
Loss Contingencies [Line Items]
Loss contingency, loss in period	€ 1.5	$ 1.7	€ 4.3	$ 5.1	€ 2.4	$ 2.7	$ 1.7

Stockholders' Equity (Narrative

Stockholders' Equity (Narrative) (Details) - USD ($) shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Apr. 30, 2021
Stockholders Equity Note [Line Items]
Repurchases of capital stock	$ 12,610,000,000	$ 7,897,000,000	$ 36,801,000,000	$ 23,245,000,000
Share Repurchase Program
Stockholders Equity Note [Line Items]
Remaining amount available for repurchase	$ 30,800,000,000		$ 30,800,000,000
Repurchases of capital stock (in shares)	4.6		15.7
Repurchases of capital stock	$ 12,600,000,000		$ 36,800,000,000
Class C Capital Stock \| Share Repurchase Program
Stockholders Equity Note [Line Items]
Authorized share repurchase amount					$ 50,000,000,000
Class A Capital Stock \| Share Repurchase Program
Stockholders Equity Note [Line Items]
Repurchases of capital stock (in shares)	0.5		0.5
Repurchases of capital stock	$ 1,500,000,000		$ 1,500,000,000

Net Income Per Share (Details)

Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Denominator
Basic net income per share (in dollars per share)	$ 28.44	$ 16.55	$ 82.76	$ 36.69
Weighted-average effect of dilutive securities
Diluted net income per share (in dollars per share)	$ 27.99	$ 16.40	$ 81.53	$ 36.38
Class A Common Stock
Numerator
Allocation of undistributed earnings	$ 8,548	$ 4,973	$ 24,867	$ 11,004
Denominator
Number of shares used in basic computation (shares)	300,519	300,411	300,482	299,934
Basic net income per share (in dollars per share)	$ 28.44	$ 16.55	$ 82.76	$ 36.69
Numerator
Allocation of undistributed earnings for basic computation	$ 8,548	$ 4,973	$ 24,867	$ 11,004
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	1,291	763	3,776	1,697
Reallocation of undistributed earnings	(156)	(53)	(424)	(103)
Allocation of undistributed earnings	$ 9,683	$ 5,683	$ 28,219	$ 12,598
Denominator
Number of shares used in basic computation (shares)	300,519	300,411	300,482	299,934
Weighted-average effect of dilutive securities
Conversion of Class B to Class A common shares outstanding (shares)	45,404	46,108	45,622	46,266
Restricted stock units and other contingently issuable shares (shares)			16	105
Number of shares used in per share computation (shares)	345,937	346,566	346,120	346,305
Diluted net income per share (in dollars per share)	$ 27.99	$ 16.40	$ 81.53	$ 36.38
Class A Common Stock \| Restricted stock units and other contingently issuable shares
Weighted-average effect of dilutive securities
Restricted stock units and other contingently issuable shares (shares)	14	47
Class B Common Stock
Numerator
Allocation of undistributed earnings	$ 1,291	$ 763	$ 3,776	$ 1,697
Denominator
Number of shares used in basic computation (shares)	45,404	46,108	45,622	46,266
Basic net income per share (in dollars per share)	$ 28.44	$ 16.55	$ 82.76	$ 36.69
Numerator
Allocation of undistributed earnings for basic computation	$ 1,291	$ 763	$ 3,776	$ 1,697
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	0	0	0	0
Reallocation of undistributed earnings	(20)	(7)	(56)	(14)
Allocation of undistributed earnings	$ 1,271	$ 756	$ 3,720	$ 1,683
Denominator
Number of shares used in basic computation (shares)	45,404	46,108	45,622	46,266
Weighted-average effect of dilutive securities
Conversion of Class B to Class A common shares outstanding (shares)	0	0	0	0
Restricted stock units and other contingently issuable shares (shares)			0	0
Number of shares used in per share computation (shares)	45,404	46,108	45,622	46,266
Diluted net income per share (in dollars per share)	$ 27.99	$ 16.40	$ 81.53	$ 36.38
Class B Common Stock \| Restricted stock units and other contingently issuable shares
Weighted-average effect of dilutive securities
Restricted stock units and other contingently issuable shares (shares)	0	0
Class C Capital Stock
Numerator
Allocation of undistributed earnings	$ 9,097	$ 5,511	$ 26,748	$ 12,341
Denominator
Number of shares used in basic computation (shares)	319,835	332,930	323,208	336,361
Basic net income per share (in dollars per share)	$ 28.44	$ 16.55	$ 82.76	$ 36.69
Numerator
Allocation of undistributed earnings for basic computation	$ 9,097	$ 5,511	$ 26,748	$ 12,341
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares	0	0	0	0
Reallocation of undistributed earnings	156	53	424	103
Allocation of undistributed earnings	$ 9,253	$ 5,564	$ 27,172	$ 12,444
Denominator
Number of shares used in basic computation (shares)	319,835	332,930	323,208	336,361
Weighted-average effect of dilutive securities
Conversion of Class B to Class A common shares outstanding (shares)	0	0	0	0
Restricted stock units and other contingently issuable shares (shares)			10,073	5,715
Number of shares used in per share computation (shares)	330,582	339,285	333,281	342,076
Diluted net income per share (in dollars per share)	$ 27.99	$ 16.40	$ 81.53	$ 36.38
Class C Capital Stock \| Restricted stock units and other contingently issuable shares
Weighted-average effect of dilutive securities
Restricted stock units and other contingently issuable shares (shares)	10,747	6,355

Compensation Plans (Narrative)

Compensation Plans (Narrative) (Details) - USD ($) $ in Billions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 3.9	$ 3.3	$ 11.7	$ 10.1
Awards expected to be settled with stock	3.8	$ 3.1	11.2	$ 9.6
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 28.2		$ 28.2
Weighted average recognition period for unrecognized stock-based compensation expense			2 years 7 months 6 days

Compensation Plans (Unvested Re

Compensation Plans (Unvested Restricted Stock Units Activity) (Details) - Restricted Stock Units (RSUs)	9 Months Ended
	Sep. 30, 2021$ / sharesshares
Unvested restricted stock units - number of shares
Unvested at beginning of period (in shares) \| shares	19,288,793
Granted (in shares) \| shares	9,849,733
Vested (in shares) \| shares	(7,984,196)
Forfeited/canceled (in shares) \| shares	(1,471,948)
Unvested at end of period (in shares) \| shares	19,682,382
Unvested restricted stock units - weighted-average grant-date fair value
Unvested at beginning of period (in dollars per share) \| $ / shares	$ 1,262.13
Granted (in dollars per share) \| $ / shares	1,883.76
Vested (in dollars per share) \| $ / shares	1,334.16
Forfeited/canceled (in dollars per share) \| $ / shares	1,411.5
Unvested at end of period (in dollars per share) \| $ / shares	$ 1,538.3

Income Taxes - Effective tax ra

Income Taxes - Effective tax rate (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 4,128	$ 2,112	$ 10,941	$ 4,351
Effective tax rate	17.90%	15.80%	16.50%	14.80%

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Billions	Sep. 30, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Gross unrecognized tax benefits	$ 5.3	$ 3.8
Unrecognized tax benefits that would impact effective tax rate	$ 3.7	$ 2.6

Information about Segments an_3

Information about Segments and Geographic Areas (Revenue by Segment) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Revenues	$ 65,118	$ 46,173	$ 182,312	$ 125,629
Hedging gains (losses)	62	(22)	(54)	178
Google Services
Segment Reporting Information [Line Items]
Revenues	59,884	42,573	168,129	115,762
Google Cloud
Segment Reporting Information [Line Items]
Revenues	4,990	3,444	13,665	9,228
Other Bets
Segment Reporting Information [Line Items]
Revenues	$ 182	$ 178	$ 572	$ 461

Information about Segments an_4

Information about Segments and Geographic Areas (Operating Income (Loss) by Segment) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Segment operating income (loss)	$ 21,031	$ 11,213	$ 56,829	$ 25,573
Operating Segments \| Google Services
Segment Reporting Information [Line Items]
Segment operating income (loss)	23,973	14,453	65,862	35,540
Operating Segments \| Google Cloud
Segment Reporting Information [Line Items]
Segment operating income (loss)	(644)	(1,208)	(2,209)	(4,364)
Operating Segments \| Other Bets
Segment Reporting Information [Line Items]
Segment operating income (loss)	(1,288)	(1,103)	(3,831)	(3,340)
Reconciling items
Segment Reporting Information [Line Items]
Segment operating income (loss)	$ (1,010)	$ (929)	$ (2,993)	$ (2,263)

Information about Segments an_5

Information about Segments and Geographic Areas (Long-Lived Assets by Geographic Area) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 107,549	$ 96,960
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	77,281	69,315
International
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 30,268	$ 27,645