Restructuring Activities - Schedule of Restructuring (Details) - USD ($) $ in Millions	12 Months Ended	15 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025
Restructuring Cost and Reserve [Line Items]
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Restructuring (See Note 8)
2024 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 0	$ 24	$ 0
Charges to operations	62	61
Charges settled in cash	(24)	(22)
Impairment and other charges	(62)	(15)
Licensor Commitments \| 2024 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	0	0	0
Charges to operations	5	30
Charges settled in cash	0	(17)
Impairment and other charges	(5)	(13)
Workforce \| 2024 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	0	24	0
Charges to operations	0	29
Charges settled in cash	(24)	(5)
Impairment and other charges	0	0
Office Space Reductions
Restructuring Cost and Reserve [Line Items]
Charges to operations			59
Office Space Reductions \| 2024 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	0	0	$ 0
Charges to operations	57	2
Charges settled in cash	0	0
Impairment and other charges	$ (57)	$ (2)

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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