Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component.

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Pretax income (loss) from operations of a business component (exclusive of any gain (loss) on disposal, or provision therefore) during the reporting period, until its disposal.

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- Definition

After tax income (loss) from operations of a business component (exclusive of any gain (loss) on disposal, or provision therefore) during the reporting period, until its disposal.

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- Definition

Income tax expense or benefit attributable to Income or Loss from discontinued operations during the phase-out period.

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- Definition

Amount of income (loss) from a disposal group, net of income tax, reported as a separate component of income before extraordinary items after deduction or consideration of the amount allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Discontinued Operations (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		4 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	May 05, 2011	Sep. 30, 2012	Sep. 30, 2011
Operations data for discontinued operations
Net revenue			$ 76
Operating expenses			86
Operating loss before income taxes			(10)
Benefit from income taxes			4
Loss from discontinued operations, net of tax			(6)		(6)
Gain from disposal of discontinued operations, net of tax			312		312
Total income from discontinued operations, net of tax			$ 306