Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Nov. 30, 2022	Nov. 30, 2021	Nov. 30, 2022	Nov. 30, 2021
Revenue
Revenues	$ 169	$ 184	$ 505	$ 533
Cost of sales
Cost of sales	60	67	186	190
Gross margin	109	117	319	343
Operating expenses
Research and development	52	57	159	172
Selling, marketing and administration	89	77	257	233
Amortization	26	42	78	133
Impairment of long-lived assets (note 2)	0	0	4	0
Gain on sale of property, plant and equipment, net (note 3)	0	0	(6)	0
Debentures fair value adjustment	(56)	(110)	(112)	(47)
Litigation settlement (note 9)	0	0	165	0
Total operating expenses	111	66	545	491
Operating income (loss)	(2)	51	(226)	(148)
Investment income (loss), net	2	25	(1)	22
Income (loss) before income taxes	0	76	(227)	(126)
Provision for income taxes (note 4)	4	2	12	6
Net income (loss)	$ (4)	$ 74	$ (239)	$ (132)
Earnings (loss) per share (note 7)
Earnings (Loss) Per Share, Basic (in usd per share)	$ (0.01)	$ 0.13	$ (0.41)	$ (0.23)
Earnings (Loss) Per Share, Diluted (in usd per share)	$ (0.09)	$ (0.05)	$ (0.54)	$ (0.28)