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Segment Information (Acquisition of Investment in Films and Television Programs and Program Rights by Segment) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2022
Segment Reporting Information [Line Items] |  |  |
Acquisition of investment in films and television programs and program rights | $ 1,409.3 | $ 1,979.2 | $ 2,211.7
Reportable Segments | Motion Picture |  |  |
Segment Reporting Information [Line Items] |  |  |
Acquisition of investment in films and television programs and program rights | 416.6 | 483.6 | 465.0
Reportable Segments | Television Production |  |  |
Segment Reporting Information [Line Items] |  |  |
Acquisition of investment in films and television programs and program rights | 712.8 | 1,082.0 | 1,287.0
Reportable Segments | Media Networks |  |  |
Segment Reporting Information [Line Items] |  |  |
Acquisition of investment in films and television programs and program rights | 852.8 | 1,173.0 | 1,134.6
Intersegment Eliminations |  |  |
Segment Reporting Information [Line Items] |  |  |
Acquisition of investment in films and television programs and program rights | $ (572.9) | $ (759.4) | $ (674.9)

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