Amount of investment in film and television programs and program rights acquired at the acquisition date.

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Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date.

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Amount of deferred tax liability attributable to taxable temporary differences assumed at the acquisition date.

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The amount of financial assets (as defined) recognized as of the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Mergers and Acquisitions (Purchase Price Allocation) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Mar. 31, 2017	Dec. 08, 2016	Mar. 31, 2016
Business Acquisition [Line Items]
Goodwill	$ 2,740.8	$ 2,700.5		$ 534.8
Starz
Business Acquisition [Line Items]
Cash and cash equivalents			$ 73.5
Accounts receivable			254.9
Investment in films and television programs and program rights			851.9
Property and equipment			121.4
Investments			12.1
Intangible assets			2,071.0
Other assets			139.9
Accounts payable and accrued liabilities			(143.1)
Corporate debt and capital lease obligations			(1,013.1)
Deferred tax liabilities			(713.6)
Other liabilities			(165.0)
Fair value of net assets acquired			1,489.9
Goodwill			2,177.0
Total purchase consideration			$ 3,666.9