Consolidated Statements of Cash Flows (USD $) In Millions	12 Months Ended
	Apr. 29, 2011	Apr. 30, 2010	Apr. 24, 2009
Cash flows from operating activities:
Net income	$ 673.1	$ 400.4	$ 64.6
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	165.6	166.0	170.5
Stock-based compensation	175.2	159.8	140.8
Accretion of discount and issuance costs on notes	53.1	50.8	41.0
Unrealized losses on derivative activities	9.9	0	0
Deferred income taxes	(26.3)	(11.3)	(124.6)
Tax benefit (charges) from stock-based compensation	128.5	(0.9)	45.4
Excess tax benefit from stock-based compensation	(127.7)	(8.6)	(36.7)
Other non-cash items, net	4.9	9.7	57.8
Changes in assets and liabilities, net of acquisition of businesses:
Accounts receivable	(262.7)	(21.3)	128.7
Inventories	4.4	(52.1)	9.1
Other operating assets	6.0	(36.8)	(0.8)
Accounts payable	38.7	42.7	(27.0)
Accrued compensation and other current liabilities	118.8	53.2	190.5
Deferred revenue	382.9	176.7	219.3
Other operating liabilities	1.9	46.7	10.6
Net cash provided by operating activities	1,346.3	975.0	889.2
Cash flows from investing activities:
Purchases of investments	(2,190.9)	(2,632.6)	(1,152.5)
Redemptions of investments	1,772.4	1,772.3	1,035.7
Reclassification from cash and cash equivalents to short-term investments	0	0	(598.0)
Purchases of property and equipment	(222.7)	(135.6)	(289.6)
Acquisition of businesses, net of cash acquired	(136.5)	0	0
Other investing activities, net	0.5	8.2	1.1
Net cash used in investing activities	(777.2)	(987.7)	(1,003.3)
Cash flows from financing activities:
Issuance of common stock	324.2	197.1	85.9
Repurchases of common stock	0	0	(400.0)
Excess tax benefit from stock-based compensation	127.7	8.6	36.7
Issuance of long-term debt	0	0	1,238.4
Sale of common stock warrants	0	0	163.1
Settlement (purchase) of note hedge	0	14.2	(254.9)
Repayment of long-term debt	0	0	(172.6)
Other financing activities	(1.0)	0	0
Net cash provided by financing activities	450.9	219.9	696.6
Effect of exchange rate changes on cash and cash equivalents	32.3	3.6	(24.8)
Net increase in cash and cash equivalents	1,052.3	210.8	557.7
Cash and cash equivalents:
Beginning of year	1,705.0	1,494.2	936.5
End of year	$ 2,757.3	$ 1,705.0	$ 1,494.2