Consolidated Statements of Shareholders' Equity - USD ($) $ in Millions	Total	Capital Stock and Additional Paid-in Capital	Deficit	Accumulated Other Comprehensive Loss
Beginning Balance at Feb. 28, 2023	$ 857	$ 2,909	$ (2,028)	$ (24)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(11)		(11)
Other comprehensive income (loss)	2			2
Stock-based compensation	9	9
Employee share purchase plan	2	2
Ending Balance at May. 31, 2023	859	2,920	(2,039)	(22)
Beginning Balance at Feb. 29, 2024	776	2,948	(2,158)	(14)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(42)		(42)
Other comprehensive income (loss)	(1)			(1)
Stock-based compensation	8	8
Employee share purchase plan	1	1
Ending Balance at May. 31, 2024	$ 742	$ 2,957	$ (2,200)	$ (15)