Consolidated Balance Sheets Details - Accounts Receivable (Details) $ in Millions	12 Months Ended
	Feb. 28, 2021 USD ($)	Feb. 29, 2020 USD ($)	Feb. 28, 2019 USD ($)	Feb. 28, 2018 USD ($)
Balance Sheet Related Disclosures [Abstract]
Allowance for doubtful accounts receivable, current	$ 10	$ 9
Accounts Receivable, Allowance for Credit Loss, Relating to CECL Estimated Based on Days Past Due and Region	3
Accounts Receivable, Allowance for Credit Loss, Relating to Customers Evaluated Separately	$ 7
Number of customers with a balance greater than 10% of total accounts receivable	1	2
Condensed Balance Sheet Statements, Captions [Line Items]
Accounts Receivable, Allowance for Credit Loss, Beginning Balance	$ 9
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)	(3)
Accounts Receivable, Allowance for Credit Loss, Ending Balance	10
Stockholders' Equity Attributable to Parent	$ (1,504)	$ (2,529)	$ (2,636)	$ (2,505)
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Stockholders' Equity Attributable to Parent		$ 4