Fair Value Measurements (Details) (USD $) In Millions	Jul. 02, 2011	Apr. 02, 2011
Financial assets carried at fair value:
Total	$ 43.5	$ 119.7
Financial liabilities carried at fair value:
Total	19.1	17.8
Municipal Bonds [Member] \| Fair Value, Inputs, Level 1 [Member]
Financial assets carried at fair value:
Investments carried at fair value	36.2	100.4
Variable rate municipal securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Financial assets carried at fair value:
Investments carried at fair value	0	14.5
Auction rate securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Financial assets carried at fair value:
Investments carried at fair value	2.3	2.3
Other Debt Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Financial assets carried at fair value:
Investments carried at fair value	0.4	0.5
Fair Value, Inputs, Level 2 [Member]
Financial liabilities carried at fair value:
Derivative financial instruments	19.1	17.8
Fair Value, Inputs, Level 2 [Member]
Financial assets carried at fair value:
Derivative financial instruments	$ 4.6	$ 2.0

Fair value assets measured on recurring basis.

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Fair value liabilities measured on recurring basis.

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This represents the total of the Entity's financial assets that are measured at fair value on a recurring basis.

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This represents the total of the Entity's financial liabilities that are measured at fair value on a recurring basis.

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This element represents a certain statement of financial position asset caption which represents a class of assets, or which may include an individual asset, measured at fair value on a recurring basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
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This element represents a certain statement of financial position liability caption which represents a class of liabilities, or which may include an individual liability, measured at fair value on a recurring basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
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-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
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