Segment and Geographic Information (Tables)

12 Months Ended

Mar. 31, 2026

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

The following table presents selected financial information with respect to the Company's single operating segment for the fiscal years ended March 31, 2026, 2025 and 2024:

	Fiscal Year Ended March 31,
(in millions)	2026			2025			2024
License and Other Revenue	$	2,307		$	1,839		$	1,431
Royalty Revenue	2,613			2,168			1,802
	4,920			4,007			3,233
Less Operating Costs and Expenses:
Staff costs: Salaries, bonuses and benefits	(1,674)			(1,320)			(1,300)
Staff costs: Share-based compensation cost (equity settled)	(1,052)			(820)			(1,037)
Staff costs: Employer taxes related to share-based compensation	(160)			(224)			(176)
Non-staff costs:
Project materials costs, third-party fees paid to consultants, information technology, research and development expenses (excluding employee-related expenses), accounting and legal professional services fees, advertising expenses, and other corporate-related expenses	(881)			(634)			(367)
Amortization	(100)			(87)			(86)
Depreciation	(150)			(96)			(76)
Other non-staff costs	(3)			5			(80)
Operating income (loss)	900			831			111
Operating margin	18		%	21		%	3		%
Income (loss) from equity investments, net	14			(237)			(20)
Interest income, net	111			116			110
Other non-operating income (loss), net	132			10			11
Income (loss) from continuing operations before income taxes	1,157			720			212
Income tax benefit (expense)	(253)			72			94
Net income (loss)	$	904		$	792		$	306

Schedule of Long-Lived Assets by Geographic Area

Long-lived assets by geographic area are as follows:

	As of
(in millions)	March 31, 2026		March 31, 2025
United Kingdom	$	628	$	444
United States	438		197
Other countries	154		73
Total	$	1,220	$	714