Fair Value Measurements - Non-Recurring Fair Value Measurements (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 28, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of long-lived assets (note 3)	$ 15	$ 235	$ 0
Impairment Of Right of Use Assets	7	4	0
Impairment of goodwill	35	245	$ 0
Patent Abandonment, Cost	15
Patent Abandonment, Accumulated Amortization	7
Patent Abandonment classified as impairment of LLA, Net Book Value	8
Other Intangible Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of long-lived assets (note 3)	$ 8	$ 231