Revenue and Segment Disclosures - Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Aug. 31, 2024	Aug. 31, 2023	Aug. 31, 2024	Aug. 31, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment gross margin		$ 94	$ 85	$ 190	$ 264
Cost of sales		51	47	99	241
Research and development		37	50	79	104
Selling and Marketing Expense		34	43	72	88
General and Administrative Expense		33	30	73	84
Amortization		11	14	23	29
Impairment of long-lived assets (note 2)		0	1	3	1
Debentures fair value adjustment		0	(6)	0	16
Investment income, net (note 2 and note 5)		3	7	8	10
Loss before income taxes		(18)	(40)	(52)	(48)
Total Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment gross margin		95	86	192	266
Cost of sales		50	46	97	239
Segment Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Cost of sales	[1]	1	1	2	2
Investment income, net (note 2 and note 5)		$ 3	$ 7	$ 8	$ 10

[1] The CODM reviews segment information on an adjusted basis, which excludes certain amounts as described below: Stock compensation expenses - Equity compensation is a non-cash expense and does not impact the ongoing operating decisions taken by the Company’s management.