Income Taxes - Components of Deferred Income Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Feb. 29, 2024	Feb. 28, 2023
Assets
Property, plant, equipment and intangibles assets	$ 258	$ 264
Non-deductible reserves	37	44
Minimum Taxes	207	207
Debentures (note 6)	0	1
Research and development	402	390
Tax loss carryforwards	514	495
Other tax carryforwards	125	122
Deferred Tax Assets, Gross	1,543	1,523
Valuation allowance	1,520	1,492
Deferred income tax assets	23	31
Liabilities
Property, plant and equipment	(23)	(31)
Deferred income tax liabilities	23	31
Net deferred income tax asset (liability)	$ 0	$ 0