The charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value.

+ References+ Details

Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income 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.

+ References+ Details

- Definition

Tax effect allocated to a disposal group that is classified as a component of the entity reported as a separate component of income before extraordinary items. Includes the tax effects of the following: 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.

+ References

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+ Details

- Definition

Amount of income (loss) from a disposal group, net of income tax before extraordinary items 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.

+ References

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+ Details

Discontinued Operations - Discontinued Operations (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		0 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013 Segment, Discontinued Operations [Member]	Apr. 30, 2012 Segment, Discontinued Operations [Member]	Apr. 30, 2013 Segment, Discontinued Operations [Member]	Apr. 30, 2012 Segment, Discontinued Operations [Member]	May 16, 2013 Subsequent Event [Member]
Statements of Operations for Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses	$ 33								$ 19
Asset Impairment Charges	25
Sales and revenues, net					36	37	70	80
Loss before income taxes					(21)	(44)	(30)	(58)
Income tax benefit					0	10	0	15
Loss from discontinued operations, net of tax	(21)	(34)	(30)	(43)	(21)	(34)	(30)	(43)
Gain (Loss) on Sale of Business	$ 28