Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011
Cash flows from operating activities:
Consolidated net income	$ 90,803		$ 328,849
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Non-cash portion of share-based compensation	186,002		165,236
Depreciation and amortization	137,855		125,986
Restructuring and other charges	88,618	[1]	15,550	[1]
Deferred income taxes	(75,064)		(6,014)
(Gain) loss on investments, net	(7,810)		982
Excess tax benefits from share-based compensation	(7,184)		(44,524)
Amortization of debt issuance costs	708		509
Changes in operating assets and liabilities, net of effects from acquisitions:
Accounts receivable, net	180,368		152,019
Prepaid expenses and other assets	(54,089)		14,103
Accounts payable	(114,020)		(25,962)
Accrued compensation	5,608		(62,625)
Income tax payable	64,715		70,241
Other accrued liabilities	(24,838)		7,759
Deferred revenue	15,899		1,012
Net cash provided by operating activities	487,571		743,121
Cash flows from investing activities:
Purchases of property and equipment	(256,753)		(187,886)
Purchases of trading investments	(3,776)		(4,575)
Purchases of available-for-sale investments	(1,009,076)		(1,893,474)
Proceeds from sales of available-for-sale investments	625,119		1,050,936
Proceeds from maturities of available-for-sale investments	431,705		446,150
Payments for business acquisitions, net of cash and cash equivalents acquired	(90,487)		(31,101)
Proceeds from sales of privately-held investments	32,715		2,143
Purchases of privately-held investments	(11,123)		(34,545)
Purchase of licensed software	(65,297)		0
Changes in restricted cash	(20,820)		(1,144)
Net cash used in investing activities	(367,793)		(653,496)
Cash flows from financing activities:
Proceeds from issuance of common stock	88,225		341,063
Purchases and retirement of common stock	(400,070)		(548,590)
Payment for capital lease obligation	(1,430)		0
Issuance of long-term debt, net	0		991,556
Change in customer financing arrangements	(16,167)		(7,616)
Excess tax benefits from share-based compensation	7,184		44,524
Net cash (used in) provided by financing activities	(322,258)		820,937
Net (decrease) increase in cash and cash equivalents	(202,480)		910,562
Cash and cash equivalents at beginning of period	2,910,420		1,811,887
Cash and cash equivalents at end of period	$ 2,707,940		$ 2,722,449

[1] Amount includes restructuring and other charges reported in operating expenses and in cost of revenues.