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Fair value portion of assets classified as held for sale.

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Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments.

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The current portion of aggregate prepayments received from customers for goods or services to be provided in the future, as well as the current portion of money or property received from customers that are to be returned upon satisfactory contract completion or as partial prepayment for goods or services to be provided in the future.

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Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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The carrying amount (fair value) as of the balance sheet date of the transferor's interests in transferred financial assets (typically securitized receivables, generally not involved in the collection of principal) following transfer of significant portions of such financial instruments to other parties. Such interests could be ancillary cash flows and interest-only strips.

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Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

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The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group.

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SUMMARY OF ACCOUNTING POLICIES - Other Information (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2018	Jun. 30, 2017	Mar. 31, 2017
Other Current Assets / Liabilities
Cost method investments	$ 124.6
Equity investments in non-majority owned companies	411.1		$ 200.1
Customer working capital advances and accruals included in other current liabilities	153.6		231.3
Deferred revenue	329.0		280.7
Customer Related Accruals
Other Current Assets / Liabilities
Customer working capital advances and accruals included in other current liabilities	439.0		501.9
Asset-Backed Securitization Programs
Other Current Assets / Liabilities
Other current assets	445.4		$ 506.5
Third-Party Private Company \| Other Assets
Other Current Assets / Liabilities
Investment in subsidiaries	76.5
RIB Software AG \| YTWO Formative Joint Venture
Other Current Assets / Liabilities
Payments to acquire interest in joint venture	60.0
Disposed of by Sale \| Wink Labs Inc \| Third-Party Private Company
Other Current Assets / Liabilities
Contingent consideration		$ 59.0
Other Operating Income (Expense) \| Disposed of by Sale \| Wink Labs Inc \| Third-Party Private Company
Other Current Assets / Liabilities
Gain on sale	38.7
Level 2 \| Nonrecurring
Other Current Assets / Liabilities
Other current assets held for sale	$ 321.1