Revenue and Segment Disclosures - Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Details) - USD ($) $ in Millions		3 Months Ended
		May 31, 2022	May 31, 2021
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gross Profit		$ 104	$ 114
Cost of sales		64	60
Research and development		53	57
Selling, marketing and administration		82	73
Amortization		27	46
Debentures fair value adjustment		(46)	(4)
Litigation settlement (note 9)		165	0
Investment loss, net		(1)	(2)
Loss before income taxes		(178)	(60)
Total Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gross Profit		105	115
Cost of sales		63	59
Segment Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Cost of sales	[1]	1	1
Investment loss, net		$ (1)	$ (2)

[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.