|**Restructuring Activities (Tables)**                                                                                                                                                                                                                                                                                                                                                                                                                                                       | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
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|**Restructuring and Related Activities [Abstract]**                                                                                                                                                                                                                                                                                                                                                                                                                                         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|Restructuring and Related Costs                                                                                                                                                                                                                                                                                                                                                                                                                                                             | Restructuring activities under this plan as of June 30, 2024 were as follows (in millions):Licensor Commitments(a)Workforce(a)Office Space Reductions(b)TotalCharges to operations$30$29$2$61Charges settled in cash(17)(5)—(22)Non-cash items(13)—(2)(15)Liability as of March 31, 2024$—$24$—$24Charges (credits) to operations—(2)86Charges settled in cash—(19)—(19)Non-cash items——(8)(8)Liability as of June 30, 2024$—$3$—$3(a) Charges are recorded within Restructuring in the Condensed Consolidated Statement of Operations.(b) Of the $8 million charges recorded during the three months ended June 30, 2024, $4 million is recorded within Restructuring and $4 million is recorded within General and administrative expenses in the Condensed Consolidated Statement of Operations. Prior period charges were recorded within General and administrative expenses in the Consolidated Statement of Operations.
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|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | Licensor Commitments(a)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
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|Charges to operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Charges settled in cash                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | (17)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|Non-cash items                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | (13)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|Liability as of March 31, 2024                                                                                                                                                                                                                                                                                                                                                                                                                                                              | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Charges (credits) to operations                                                                                                                                                                                                                                                                                                                                                                                                                                                             | —                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Charges settled in cash                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | —                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Non-cash items                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | —                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Liability as of June 30, 2024                                                                                                                                                                                                                                                                                                                                                                                                                                                               | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|(a) Charges are recorded within Restructuring in the Condensed Consolidated Statement of Operations.(b) Of the $8 million charges recorded during the three months ended June 30, 2024, $4 million is recorded within Restructuring and $4 million is recorded within General and administrative expenses in the Condensed Consolidated Statement of Operations. Prior period charges were recorded within General and administrative expenses in the Consolidated Statement of Operations.

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