CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 9,983	$ 13,630
Marketable securities	34,643	21,345
Total cash, cash equivalents, and marketable securities (including securities loaned of $4,031 and $2,778)	44,626	34,975
Accounts receivable, net of allowance of $101 and $133	5,427	4,252
Receivable under reverse repurchase agreements	745	750
Deferred income taxes, net	215	259
Prepaid revenue share, expenses and other assets	1,745	1,326
Total current assets	52,758	41,562
Prepaid revenue share, expenses and other assets, non-current	499	442
Deferred income taxes, net, non-current	0	265
Non-marketable equity securities	790	523
Property and equipment, net	9,603	7,759
Intangible assets, net	1,578	1,044
Goodwill	7,346	6,256
Total assets	72,574	57,851
Current liabilities:
Accounts payable	588	483
Short-term debt	1,218	3,465
Accrued compensation and benefits	1,818	1,410
Accrued expenses and other current liabilities	1,370	961
Accrued revenue share	1,168	885
Securities lending payable	2,007	2,361
Deferred revenue	547	394
Income taxes payable, net	197	37
Total current liabilities	8,913	9,996
Long-term debt	2,986	0
Deferred revenue, non-current	44	35
Income taxes payable, non-current	1,693	1,200
Deferred income taxes, net, non-current	287	0
Other long-term liabilities	506	379
Commitments and contingencies
Stockholders' equity:
Convertible preferred stock, $0.001 par value per share, 100,000 shares authorized; no shares issued and outstanding	0	0
Class A and Class B common stock and additional paid-in capital, $0.001 par value per share: 9,000,000 shares authorized; 321,301 (Class A 250,413, Class B 70,888) and par value of $321 (Class A $250, Class B $71) and 324,895 (Class A 257,553, Class B 67,342) and par value of $325 (Class A $258, Class B $67) shares issued and outstanding	20,264	18,235
Accumulated other comprehensive income	276	138
Retained earnings	37,605	27,868
Total stockholders' equity	58,145	46,241
Total liabilities and stockholders' equity	$ 72,574	$ 57,851