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Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	Mar. 30, 2012
Insurance
Non-catastrophic property deductible	$ 25
Casualty and catastrophic property deductible	50
Legal
Range of possible loss for certain legal proceedings, minimum	3
Range of possible loss for certain legal proceedings, maximum	$ 17

The estimated maximum amount of possible loss from the contingency.

The estimated minimum amount of possible loss from the contingency.