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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 01, 2011	Jul. 02, 2010	Dec. 31, 2010	Dec. 02, 2009
Income Taxes
Effective tax rates	25.00%	(2.00%)
Additional tax benefit from Veritas v. Commissioner Tax Court decision		$ 39.0	$ 39.0
Tax benefit from current quarter discrete events primarily related to tax settlements and lapses of statutes of limitations		11.0
Forecasted tax rate	28.00%	28.00%
Original IRS Assessment				80
Income tax expense (benefit)	$ 7

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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- Definition

Reflects the effects of adjustments of previously recorded tax expense, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, IRS tax settlement and unusual repatriation of foreign earnings.

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