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Fair Value Hierarchy (Details) (USD $) In Millions, unless otherwise specified | Jun. 30, 2011 | Jun. 30, 2010
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Estimate of Fair Value, Fair Value Disclosure |  |  |  |
Fair value assets and liabilities measured on recurring and nonrecurring basis |  |  |  |
Cash equivalents, fair value disclosure | $ 1,183.0 |  | $ 1,264.7 |
Short-term marketable securities, fair value disclosure | 14.2 |  | 12.5 |
Long-term investments, fair value disclosure | 11.8 |  | 15.0 |
Foreign currency derivatives, fair value disclosure |  |  | 0.3 | [1]
Assets, fair value disclosure, recurring | 1,209.0 |  | 1,292.5 |
Fair value of assets measured on a recurring basis, percentage of total assets | 9.82799% |  | 11.04267% |
Mandatorily redeemable noncontrolling interests, fair value disclosure | 27.0 | [2] | 61.8 | [2]
Fair Value, Inputs, Level 1 |  |  |  |
Fair value assets and liabilities measured on recurring and nonrecurring basis |  |  |  |
Cash equivalents, fair value disclosure | 1,183.0 |  | 1,264.7 |
Short-term marketable securities, fair value disclosure | 14.2 |  | 12.5 |
Long-term investments, fair value disclosure | 1.4 |  | 1.2 |
Foreign currency derivatives, fair value disclosure |  |  | 0 | [1]
Assets, fair value disclosure, recurring | 1,198.6 |  | 1,278.4 |
Fair value of assets measured on a recurring basis, percentage of total assets | 9.74345% |  | 10.9222% |
Mandatorily redeemable noncontrolling interests, fair value disclosure | 0 | [2] | 0 | [2]
Fair Value, Inputs, Level 2 |  |  |  |
Fair value assets and liabilities measured on recurring and nonrecurring basis |  |  |  |
Cash equivalents, fair value disclosure | 0 |  | 0 |
Short-term marketable securities, fair value disclosure | 0 |  | 0 |
Long-term investments, fair value disclosure | 10.4 |  | 13.8 |
Foreign currency derivatives, fair value disclosure |  |  | 0 | [1]
Assets, fair value disclosure, recurring | 10.4 |  | 13.8 |
Fair value of assets measured on a recurring basis, percentage of total assets | 0.08454% |  | 0.1179% |
Mandatorily redeemable noncontrolling interests, fair value disclosure | 0 | [2] | 0 | [2]
Fair Value, Inputs, Level 3 |  |  |  |
Fair value assets and liabilities measured on recurring and nonrecurring basis |  |  |  |
Cash equivalents, fair value disclosure | 0 |  | 0 |
Short-term marketable securities, fair value disclosure | 0 |  | 0 |
Long-term investments, fair value disclosure | 0 |  | 0 |
Foreign currency derivatives, fair value disclosure |  |  | 0.3 | [1]
Assets, fair value disclosure, recurring | 0 |  | 0.3 |
Fair value of assets measured on a recurring basis, percentage of total assets | 0.00% |  | 0.00256% |
Mandatorily redeemable noncontrolling interests, fair value disclosure | $ 27.0 | [2] | $ 61.8 | [2]
[1] | Fair value is derived from changes in market value of obligations denominated in foreign currency based on an internal valuation model.
[2] | Relates to unconditional obligations to purchase additional noncontrolling equity shares of consolidated subsidiaries. Fair value measurement of the obligation was based upon the amount payable as if the forward contracts were settled. The amount redeemable within the next twelve months is classified in accrued liabilities; any interests redeemable thereafter are classified in other non-current liabilities.

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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 12 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6379932&loc=d3e22054-111558 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Available-for-Sale Securities -URI http://asc.fasb.org/extlink&oid=6505594 + Details
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- Definition 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 contracts related to the exchange of different currencies, including foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into and existing as of the balance sheet date. + Details
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