Income Taxes and Discontinued Operations (Details) (USD $) In Millions, except Per Share data	3 Months Ended	9 Months Ended
Jun. 30, 2011	Jun. 30, 2011
Income Taxes and Discontinued Operations
Unrecognized tax benefits	$ 162.9	$ 162.9
Unrecognized tax benefit that if recognized would impact effective tax rate	127.3	127.3
Decrease in unrecognized tax benefits as a result of audit	36.0
Favorable impact to current year earnings	23.9
Decrease in unrecognized tax benefit		70.8
Tax benefit, recognized in income from discontinued operations	$ 8.9	$ 8.9
Tax benefit per share, recognized in income from discontinued operations	$ 0.04	$ 0.04

This element represents the overall income (loss) from a disposal group apportioned to the parent that is classified as a component of the entity, net of income tax, reported as a separate component of income before extraordinary items after 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.

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The amount of net income or loss derived from discontinued operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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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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