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Investment in Films and Television Programs and Licensed Program Rights (Impairments) (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information [Line Items]
Write downs on investments in films and television programs and licensed program rights	$ 73.0	$ 45.1	$ 135.5
COVID-19 related charges	(3.4)	67.5	50.2
Not included in segment operating results
Segment Reporting Information [Line Items]
Write downs on investments in films and television programs and licensed program rights	36.9	15.4	91.6
Write-downs to fair value related to motion picture titles	0.0	15.4	13.1
COVID-19 related charges			15.1
Programming and content charges			76.5
Motion Picture | Reportable Segments
Segment Reporting Information [Line Items]
Write downs on investments in films and television programs and licensed program rights	1.2	19.4	42.1
Television Production | Reportable Segments
Segment Reporting Information [Line Items]
Write downs on investments in films and television programs and licensed program rights	$ 34.9	$ 10.3	$ 1.8

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Write downs to fair value recorded during the period related to motion picture titles.

+ References

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Programming and content charges as a result of changes to programming strategy in connection with management changes, that are included in direct operating expense.

+ References

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- Definition

Amount of impairment loss on capitalized cost for film predominantly monetized on its own and film group.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
-Paragraph 4C
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120154696&loc=SL120155252-107959

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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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Amount, after deduction of insurance proceeds, of loss recognized in the income statement for an event or transaction that is unusual in nature or infrequent in occurrence, or both.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 930
-SubTopic 715
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=109241964&loc=d3e23713-110274

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=114868883&loc=SL114871943-224233

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