Discontinued Operations (Components Income (Loss) From Discontinued Operations) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Dec. 31, 2011	Dec. 31, 2010
Discontinued Operations [Abstract]
Net sales and other operating revenues	$ 38	$ 59
Income from operations before income taxes	18	24
Provision for income taxes	(7)	(8)
Income from discontinued operations, net of tax	$ 11	$ 16

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

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

This element represents the overall income (loss) from a disposal group that is classified as a component of the entity, net of income tax, reported as a separate component of income before extraordinary items before deduction or consideration of the amount which may be allocable to noncontrolling interests, if any. Includes the following (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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-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 51

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-Name Regulation S-X (SX)

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+ Details