Commitments and Contingencies (Future Annual Repayment of Contractual Commitments) (Details) $ in Millions	Mar. 31, 2020 USD ($)
Contractual Obligations [Line Items]
Total future commitments under contractual obligations, 2021	$ 696.9
Total future commitments under contractual obligations, 2022	621.5
Total future commitments under contractual obligations, 2023	313.9
Total future commitments under contractual obligations, 2024	218.3
Total future commitments under contractual obligations, 2025	105.9
Total future commitments under contractual obligations, thereafter	100.4
Contractual commitments, total	2,056.9
Film Obligations and Production Loan Commitments
Contractual Obligations [Line Items]
Other commitments, 2021	391.8
Other commitments, 2022	384.1
Other commitments, 2023	111.5
Other commitments, 2024	74.1
Other commitments, 2025	7.8
Other commitments, thereafter	17.4
Other commitments, total	986.7
Interest Payments
Contractual Obligations [Line Items]
Other commitments, 2021	161.8
Other commitments, 2022	161.8
Other commitments, 2023	157.0
Other commitments, 2024	133.4
Other commitments, 2025	90.8
Other commitments, thereafter	34.0
Other commitments, total	738.8
Other Contractual Obligations
Contractual Obligations [Line Items]
Other commitments, 2021	143.3
Other commitments, 2022	75.6
Other commitments, 2023	45.4
Other commitments, 2024	10.8
Other commitments, 2025	7.3
Other commitments, thereafter	49.0
Other commitments, total	$ 331.4

Contractual Obligations [Line Items]

No definition available.

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Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

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Amount of contractual obligation due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of contractual obligation due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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Amount of contractual obligation due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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Amount of contractual obligation due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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Amount of contractual obligation due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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Minimum amount of other commitment maturing after the fifth fiscal year following the latest fiscal year for commitments not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in this taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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Minimum amount of other commitment maturing in the fourth fiscal year following the latest fiscal year for commitments not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in this taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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Minimum amount of other commitment maturing in the next fiscal year following the latest fiscal year for commitments not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in this taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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Minimum amount of other commitment maturing in the second fiscal year following the latest fiscal year for commitments not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in this taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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Minimum amount of other commitment maturing in the third fiscal year following the latest fiscal year for commitments not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in this taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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