Consolidated Statements of Shareholders' Equity - USD ($) $ in Millions	Total	Capital Stock and Additional Paid-In Capital [Member]	Retained Earnings (Deficit) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance at Feb. 28, 2021	$ 1,504	$ 2,823	$ (1,306)	$ (13)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	12		12
Other comprehensive income (loss)	(6)			(6)
Stock-based compensation	36	36
Shares issued:
Exercise of stock options	3	3
Employee share purchase plan	7	7
Ending Balance at Feb. 28, 2022	1,556	2,869	(1,294)	(19)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(734)		(734)
Other comprehensive income (loss)	(5)			(5)
Stock-based compensation	34	34
Shares issued:
Exercise of stock options		0
Employee share purchase plan	6	6
Ending Balance at Feb. 28, 2023	857	2,909	(2,028)	(24)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(130)		(130)
Other comprehensive income (loss)	10			10
Stock-based compensation	33	33
Shares issued:
Exercise of stock options		0
Employee share purchase plan	5	5
Deferred Shared Unit	1	1
Ending Balance at Feb. 29, 2024	$ 776	$ 2,948	$ (2,158)	$ (14)