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Income Taxes (Tax Expense And Effective Tax Rate) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Dec. 31, 2011	Jan. 01, 2011
Income Taxes [Abstract]
Income before income taxes	$ 83	$ 129	$ 173	$ 227
Income tax expense (benefit)	$ 50	$ 41	$ 174	$ 78
Effective tax rate	60.50%	31.60%	100.50%	34.40%

- Definition

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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