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, 2022	$ 1,556	$ 2,869	$ (1,294)	$ (19)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(235)		(235)
Other comprehensive income (loss)	(9)			(9)
Stock-based compensation	15	15
Employee share purchase plan	3	3
Ending Balance at Aug. 31, 2022	1,330	2,887	(1,529)	(28)
Beginning Balance at May. 31, 2022	1,385	2,880	(1,475)	(20)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(54)		(54)
Other comprehensive income (loss)	(8)			(8)
Stock-based compensation	7	7
Ending Balance at Aug. 31, 2022	1,330	2,887	(1,529)	(28)
Beginning Balance at Feb. 28, 2023	857	2,909	(2,028)	(24)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(53)		(53)
Other comprehensive income (loss)	3			3
Stock-based compensation	20	20
Employee share purchase plan	2	2
Ending Balance at Aug. 31, 2023	829	2,931	(2,081)	(21)
Beginning Balance at May. 31, 2023	859	2,920	(2,039)	(22)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(42)		(42)
Other comprehensive income (loss)	1			1
Stock-based compensation	11	11
Ending Balance at Aug. 31, 2023	$ 829	$ 2,931	$ (2,081)	$ (21)