Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Nov. 30, 2021	Nov. 30, 2020	Nov. 30, 2021	Nov. 30, 2020
Revenue
Revenues	$ 184	$ 218	$ 533	$ 683
Cost of sales
Cost of sales	67	69	190	192
Gross margin	117	149	343	491
Operating expenses
Research and development	57	53	172	167
Selling, marketing and administration	77	83	233	252
Amortization	42	45	133	137
Impairment of goodwill	0	0	0	594
Impairment of long-lived assets	0	0	0	21
Debentures fair value adjustment	(110)	95	(47)	114
Total operating expenses	66	276	491	1,285
Operating income (loss)	51	(127)	(148)	(794)
Investment income (loss), net (note 3 and note 6)	25	(1)	22	(6)
Income (loss) before income taxes	76	(128)	(126)	(800)
Provision for (recovery of) income taxes (note 5)	2	2	6	(11)
Net income (loss)	$ 74	$ (130)	$ (132)	$ (789)
Earnings (loss) per share (note 8)
Earnings (Loss) Per Share, Basic (in usd per share)	$ 0.13	$ (0.23)	$ (0.23)	$ (1.41)
Earnings (Loss) Per Share, Diluted (in usd per share)	$ (0.05)	$ (0.23)	$ (0.28)	$ (1.41)