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Financial Instruments And Fair Value (Tables)

12 Months Ended

Apr. 27, 2012

Financial Instruments And Fair Value [Abstract]


	April 27, 2012									April 29, 2011
	Cost or Amortized Cost		Gross Unrealized					Estimated Fair Value		Cost or Amortized Cost		Gross Unrealized					Estimated Fair Value
	Cost or Amortized Cost		Gains		Losses			Estimated Fair Value		Cost or Amortized Cost		Gains		Losses			Estimated Fair Value
Corporate bonds	$	2,665.2	$	9.5	$	(1.4	)	$	2,673.3	$	1,643.2	$	10.2	$	(0.6	)	$	1,652.8
U.S. treasury and government debt securities		836.7		1.2		(0.1	)		837.8		661.9		0.6		(0.7	)		661.8
Commercial paper		164.6		0.0		0.0			164.6		5.0		0.0		0.0			5.0
Certificates of deposit		347.7		0.5		0.0			348.2		96.3		0.0		0.0			96.3
Money market funds		724.8		0.0		0.0			724.8		1,539.6		0.0		0.0			1,539.6
Auction rate securities		54.1		0.9		(4.0	)		51.0		69.2		0.4		(4.5	)		65.1
Equity funds		25.5		0.0		0.0			25.5		20.2		0.0		0.0			20.2
Municipal bonds		0.0		0.0		0.0			0.0		1.5		0.0		0.0			1.5

Total debt and equity securities	$	4,818.6	$	12.1	$	(5.5	)	$	4,825.2	$	4,036.9	$	11.2	$	(5.8	)	$	4,042.3

Schedule of Gross Unrealized Losses and Fair Values of Investments


	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Corporate bonds	$	771.1	$	(1.4	)	$	0.0	$	0.0		$	771.1	$	(1.4	)
Auction rate securities		4.8		(0.2	)		38.8		(3.8	)		43.6		(4.0	)
U.S. treasury and government debt securities		89.4		(0.1	)		0.0		0.0			89.4		(0.1	)

Total	$	865.3	$	(1.7	)	$	38.8	$	(3.8	)	$	904.1	$	(5.5	)


	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Corporate bonds	$	236.7	$	(0.6	)	$	1.1	$	0.0		$	237.8	$	(0.6	)
Auction rate securities		0.0		0.0			51.0		(4.5	)		51.0		(4.5	)
U.S. treasury and government debt securities		193.4		(0.7	)		0.0		0.0			193.4		(0.7	)

Total	$	430.1	$	(1.3	)	$	52.1	$	(4.5	)	$	482.2	$	(5.8	)

Contractual Maturities Of Debt Investments


	Amortized Cost		Fair Value
Due in one year or less	$	1,322.7	$	1,326.1
Due in one through five years		2,516.3		2,522.6
Due after ten years*		54.1		51.0

	$	3,893.1	$	3,899.7

*	Consists of auction rate securities which have contractual maturities of greater than 10 years.

Summary Of Financial Assets And Liabilities Measured At Fair Value On Recurring Basis


			Fair Value Measurements at Reporting Date Using
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Corporate bonds	$	2,673.3	$	0.0	$	2,673.3	$	0.0
U.S. treasuries and government debt securities		837.8		234.3		603.5		0.0
Commercial paper		164.6		0.0		164.6		0.0
Certificates of deposit		348.2		0.0		348.2		0.0
Money market funds		724.8		724.8		0.0		0.0
Auction rate securities		51.0		0.0		0.0		51.0
Equity funds		25.5		25.5		0.0		0.0
Foreign currency contracts		2.7		0.0		2.7		0.0

Total	$	4,827.9	$	984.6	$	3,792.3	$	51.0

Liabilities
Foreign currency contracts	$	2.6	$	0.0	$	2.6	$	0.0

Assets And Liabilities Measured At Fair Value On Recurring Basis


			Fair Value Measurements at Reporting Date Using
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash equivalents	$	900.0	$	724.8	$	175.2	$	0.0
Short-term investments		3,848.7		234.3		3,614.4		0.0
Other current assets		9.0		6.3		2.7		0.0
Other non-current assets		70.2		19.2		0.0		51.0

Total	$	4,827.9	$	984.6	$	3,792.3	$	51.0

Liabilities
Other current liabilities	$	2.6	$	0.0	$	2.6	$	0.0

Quantitative Information About Level 3 Fair Value Measurements


	Fair Value at April 27, 2012	Valuation Techniques	Unobservable Inputs		Range (Weighted average)
ARSs	$ 51.0	Discounted cash flow		Time-to-economic maturity	6.4 yrs - 16.1 yrs (10.2 yrs)
				Liquidity risk premium, market credit spread and other factors	1.8% - 3.2% (2.2%)
				Coupon rate	1.2% - 3.2% (1.8%)

		Market comparable securities		Discount rate	4.7% - 12.6% (8.6%)

Reconciliation Of Beginning And Ending Balance Of Level 3 Auction Rate Securities Measured At Fair Value On Recurring Basis


	Year Ended
	April 27, 2012			April 29, 2011			April 30, 2010
Balance at beginning of period	$	65.1		$	69.0		$	66.5
Total unrealized gains (losses), net included in other comprehensive income		0.9			(1.4	)		4.2
Total realized gains included in earnings		0.7			0.0			0.0
Settlements		(15.7	)		(2.5	)		(1.7	)

Balance at end of period	$	51.0		$	65.1		$	69.0

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

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- Definition

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

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