Revenue and Segment Disclosures - Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2024	Nov. 30, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment gross margin		$ 112	$ 119	$ 289	$ 367
Cost of sales		31	33	102	239
Research and development		27	29	85	98
Selling and Marketing Expense		23	25	68	77
General and Administrative Expense		38	45	111	133
Amortization		4	6	14	22
Impairment of long-lived assets (note 3)		1	9	4	9
Prior debentures fair value adjustment		0	(13)	0	3
Investment income, net (note 3 and note 6)		0	5	8	15
Income before income taxes		19	23	15	40
Segment Reporting, Reconciling Item, Amortization		6	7	19	26
Total Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment gross margin		112	120	291	370
Cost of sales		31	32	100	236
Research and development		27	27	83	93
Selling and Marketing Expense		23	25	66	76
General and Administrative Expense		20	25	60	86
Segment Earnings before interest, taxes, depreciation and amortization		46	47	93	129
Segment Reporting, Reconciling Item, Stock Compensation	[1]	4	7	16	25
Segment Reporting, Reconciling Item, Restructuring expenses	[1]	7	9	16	17
Segment Reporting, Reconciling Item, Corporate general and administrative expense		9	10	31	24
Segment Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Investment income, net (note 3 and note 6)		0	5	8	15
Segment Reporting, Reconciling Item, Stock Compensation	[2]	$ 0	$ 1	$ 2	$ 3

[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. Restructuring expenses - Restructuring costs relate to employee termination benefits, facilities, streamlining many of the Company’s centralized corporate functions into Secure Communications (previously Cybersecurity) and IoT specific teams, and other costs pursuant to programs to reduce the Company’s annual expenses amongst R&D, infrastructure and other functions do not reflect expected future operating expenses, are not indicative of the Company’s core operating performance, and may not be meaningful when comparing the Company’s operating performance against that of prior periods.

[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.