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Guarantee for bonds issued by public agencies

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Redemption of available-for-sale holdings by issuers of auction rate securities.

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Redemption of trading holdings by issuers of auction rate securities.

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Specific Finance Receivables Fully Reserved.

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Trade finance receivables transferred to financial institutions, non-recourse basis.

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Value of securities exercised under put option agreement.

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

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The aggregate value of securities held, which were categorized neither as trading nor held-to-maturity, for which the interest rate reset through an auction process, that failed to be liquidated through auction, and which were sold at par value during the period.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The amount of net gains and losses recognized in income during the period on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges, on derivative instruments designated and qualifying as hedging instruments in cash flow hedges, and on derivative instruments not designated as hedging instruments.

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The aggregate foreign currency transaction gain (loss) (both realized and unrealized) included in determining net income for the reporting period. Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. For certain enterprises, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains (losses) may be disclosed as dealer gains (losses).

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Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.

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Financial Instruments (Details Textual) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 31, 2010	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Mar. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Unrealized loss on available-for-sale auction rate securities		$ 3.8		$ 3.8
Financial Instruments (Textuals) [Abstract]
Redemption of available-for-sale holdings by issuers of auction rate securities		0.2	0.2	0.4	10.9
Redemption of trading holdings by Issuers of auction rate securities					5.4
Guarantee by the federal government for bonds issued by public agencies				97.00%		97.00%
Value of securities exercised under put option agreement	11.2
Foreign currency forward contracts that closed in a gain position		11.8		11.8		5.8
Foreign currency forward contracts that closed in a loss position		8.6		8.6		3.3
Net effect of foreign currency forward contracts after including gains and losses on foreign currency exposure		0.9	0.4	1.9	2.6
Trade finance receivables transferred to financial institutions on a non-recourse basis		147.8	20.0	159.0	129.0
Finance receivables		111.5		111.5
Special finance receivables fully reserved		0.3		0.3
Carrying value of the senior unsecured notes due 2018		298.8		298.8		298.7
Senior Notes [Member]
Debt Instrument [Line Items]
Fair value of the senior unsecured notes due 2018		350.2		350.2		348.9
Forward Contracts [Member]
Derivative [Line Items]
Effect of foreign currency forward contracts		(2.3)	(4.9)	(6.0)	6.6
Auction Rate Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities in auction rate securities held				29.4		29.8
Fair value of available-for-sale auction rate securities		$ 25.6		$ 25.6		$ 27.2