Stock-Based Compensation Plans (Details 5) (USD $) In Thousands, except Per Share data, unless otherwise specified					12 Months Ended
Mar. 31, 2012 Y	Apr. 02, 2011	Apr. 03, 2010	Mar. 28, 2009	Mar. 31, 2012 Range of exercise price minimum 15.95 and maximum 19.98 [Member] Y	Mar. 31, 2012 Range of exercise price minimum 20.14 and maximum 29.93 [member] Y	Mar. 31, 2012 Range of exercise price minimum 30.04 and maximum 38.51 [Member] Y	Mar. 31, 2012 Range of exercise price minimum 40.11 and maximum 42.46 [Member] Y
Stock options Plans under outstanding and exercisable [Abstract]
Range of Exercise Prices, Minimum					$ 15.95	$ 20.14	$ 30.04	$ 40.11
Range of Exercise Prices, Maximum					$ 19.98	$ 29.93	$ 38.51	$ 42.46
Option Outstanding, Number of Shares	17,788	24,969	31,026	41,021	292	12,512	1,450	3,534
Weighted Average Remaining Contractual Term, Outstanding	3.1				2.9	3.6	3.4	1.4
Weighted-Average Exercise Price Per Share	$ 28.32	$ 29.11	$ 30.51	$ 32.51	$ 18.29	$ 24.30	$ 34.59	$ 40.82
Option Exercisable, Number of Shares	15,349				247	10,525	1,043	3,534
Option Exercisable, Weighted Average Exercise Price Per Share	$ 28.78				$ 18.38	$ 24.36	$ 35.12	$ 40.82

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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-Number 123R

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

+ References

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The weighted average price as of the beginning of the year at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

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-Subparagraph b(1)(a)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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The weighted average period between the balance sheet date and expiration for all awards outstanding under the plan, which may be expressed in a decimal value for number of years.

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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