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PENSION AND OTHER RETIREMENT PLANS Schedule of Qualified Pension Plan Assets by Major Asset Category (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 29, 2012	May 01, 2011
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 1,023.5	$ 956.4
Cash and Cash Equivalents, Net of Unsettled Transactions [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	0.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	4.00%
Fair value of plan assets	24.7	83.9
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	30.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	50.00%
Fair value of plan assets	427.0	570.5
Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	35.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	55.00%
Fair value of plan assets	495.2	266.6
Alternative Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	5.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	20.00%
Fair value of plan assets	$ 76.6	$ 35.4

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

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