Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions	6 Months Ended
	Oct. 01, 2011	Oct. 02, 2010
Cash flows from operating activities:
Net income	$ 417.6	$ 326.0
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	111.4	92.4
Deferred income tax benefit	(13.7)	(22.1)
Equity in losses of equity-method investees, net of dividends received	3.0	2.0
Non-cash stock-based compensation expense	34.0	30.8
Excess tax benefits from stock-based compensation arrangements	(21.2)	(7.0)
Other non-cash charges (benefits), net	0.6	(3.7)
Changes in operating assets and liabilities:
Accounts receivable	(195.8)	(138.1)
Inventories	(284.4)	(219.2)
Accounts payable and accrued liabilities	32.7	113.4
Income tax receivables and payables	184.9	23.8
Deferred income	(8.6)	(11.6)
Other balance sheet changes	23.0	37.3
Net cash provided by operating activities	283.5	224.0
Cash flows from investing activities:
Acquisitions and ventures, net of cash acquired and purchase price settlements	(7.9)	(21.4)
Purchases of investments	(792.9)	(567.7)
Proceeds from sales and maturities of investments	880.3	667.7
Capital expenditures	(92.4)	(93.8)
Change in restricted cash deposits	0.3	(3.2)
Net cash used in investing activities	(12.6)	(18.4)
Cash flows from financing activities:
Proceeds from credit facilities	107.7	0
Repayments of borrowings on credit facilities	(7.7)	0
Payments of capital lease obligations	(4.2)	(3.9)
Payments of dividends	(37.4)	(19.4)
Repurchases of common stock, including shares surrendered for tax withholdings	(417.8)	(347.7)
Proceeds from exercise of stock options	29.5	21.9
Excess tax benefits from stock-based compensation arrangements	21.2	7.0
Payment on interest rate swap termination	(7.6)	0
Other financing activities	0.2	(0.5)
Net cash used in financing activities	(316.1)	(342.6)
Effect of exchange rate changes on cash and cash equivalents	(0.1)	9.8
Net decrease in cash and cash equivalents	(45.3)	(127.2)
Cash and cash equivalents at beginning of period	453.0	563.1
Cash and cash equivalents at end of period	$ 407.7	$ 435.9