CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash flows from operating activities:
Net income	$ 384	$ 503
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes	65	150
Depreciation and amortization	23	26
Amortization and write-off of capitalized software development costs and intellectual property licenses	30	69
Stock-based compensation expense	21	23
Excess tax benefits from stock option exercises	(2)	(1)
Changes in operating assets and liabilities:
Accounts receivable, net	553	554
Inventories, net	0	11
Software development and intellectual property licenses	(67)	(45)
Other assets	174	129
Deferred revenues	(576)	(716)
Accounts payable	(215)	(199)
Accrued expenses and other liabilities	(237)	(370)
Net cash provided by operating activities	153	134
Cash flows from investing activities:
Proceeds from maturities of available-for-sale investments	115	154
Payment of contingent consideration	0	(3)
Purchases of available-for-sale investments	(187)	(161)
Capital expenditures	(9)	(4)
Increase in restricted cash	4	0
Net cash used in investing activities	(77)	(14)
Cash flows from financing activities:
Proceeds from issuance of common stock to employees	13	5
Repurchase of common stock	(261)	(343)
Excess tax benefits from stock option exercises	2	1
Net cash used in financing activities	(246)	(337)
Effect of foreign exchange rate changes on cash and cash equivalents	54	63
Net decrease in cash and cash equivalents	(116)	(154)
Cash and cash equivalents at beginning of period	3,165	2,812
Cash and cash equivalents at end of period	$ 3,049	$ 2,658