Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Aug. 31, 2023	Aug. 31, 2022
Cash flows from operating activities
Net loss	$ (53)	$ (235)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Amortization	32	57
Stock-based compensation	20	15
Impairment of long-lived assets (note 2)	1	4
Intellectual property disposed of by sale	147	0
Gain on Disposition of Property Plant Equipment	0	(6)
Debentures fair value adjustment	16	(56)
Operating leases	(5)	(9)
Other	0	3
Net changes in working capital items
Accounts receivable, net of allowance	(7)	38
Other receivables	4	10
Income taxes receivable	(2)	0
Other assets	(61)	(1)
Accounts payable	(6)	(2)
Accrued liabilities	(24)	145
Income taxes payable	1	6
Deferred revenue	(20)	(35)
Net cash provided by (used in) operating activities	43	(66)
Cash flows from investing activities
Acquisition of long-term investments	1	2
Acquisition of property, plant and equipment	(3)	(4)
Proceeds on sale of property, plant and equipment	0	17
Acquisition of intangible assets	(10)	(16)
Acquisition of short-term investments	92	273
Proceeds on sale or maturity of short-term investments	182	395
Net cash provided by (used in) investing activities	76	117
Cash flows from financing activities
Issuance of common shares	2	3
Net cash provided by financing activities	2	3
Effect of foreign exchange loss on cash, cash equivalents, restricted cash, and restricted cash equivalents	0	(2)
Net increase in cash, cash equivalents, restricted cash, and restricted cash equivalents during the period	121	52
Cash, cash equivalents, restricted cash, and restricted cash equivalents, beginning of period	322	406
Cash, cash equivalents, restricted cash, and restricted cash equivalents, end of period	$ 443	$ 458