PENSION AND OTHER RETIREMENT PLANS Schedule of Components of Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Millions, unless otherwise specified	Apr. 29, 2012	May 01, 2011
Defined Benefit Plan Disclosure [Line Items]
Unrecognized actuarial loss	$ (665.4)	$ (365.3)
Unrecognized prior service credit	$ 4.7	$ 7.2

The pretax net amount of gains and losses that are not yet recognized as a component of net periodic benefit cost, and that are recognized as increases or decreases in other comprehensive income as they arise. Gains and losses are due to changes in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan.

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Amount related to the pretax cost of benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation, which has not yet been recognized as components of net periodic benefit cost.

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