Cash, Cash Equivalents and Investments - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Aug. 31, 2021	Aug. 31, 2020	Aug. 31, 2021	Aug. 31, 2020	Feb. 28, 2021
Cash, Cash Equivalents and Investments [Line Items]
Investments that are communicated to the third party for consideration of reasonableness, threshold limit for fair values			0.50%
Equity Investment without Readily Determinable Fair Value	$ 38		$ 38		$ 37
Available-for-sale Securities, Gross Realized Losses	0	$ 0	0	$ 0
Investments with continuous unrealized losses	$ 8	$ 7	$ 8	$ 7
Minimum
Cash, Cash Equivalents and Investments [Line Items]
Letters of credit terms			1 month
Maximum
Cash, Cash Equivalents and Investments [Line Items]
Letters of credit terms			4 years