Earnings (Loss) Per Share - Summary of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
		May 31, 2022		May 31, 2021
Earnings Per Share [Abstract]
Net loss for basic loss per share available to common shareholders		$ (181)		$ (62)
Debentures fair value impact on EPS		(46)	[1]	0	[2]
Interest expense, debt adjustment impact on EPS		2	[1]	0	[2]
Net loss for diluted loss per share available to common shareholders		$ (225)		$ (62)
Weighted-average number of shares outstanding (000's) - basic and diluted (in shares)	[3]	576,877,000		567,358,000	[4]
Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Convertible Securities (in shares)		60,833,000	[1]	0	[2]
Weighted Average Number of Shares Outstanding, Diluted, Total (in shares)		637,710,000		567,358,000
Earnings (Loss) Per Share, Basic (in usd per share)		$ (0.31)		$ (0.11)
Earnings (Loss) Per Share, Diluted (in usd per share)		$ (0.35)		$ (0.11)
Exchange shares related to Cylance acquisition				1,421,945

[1] The Company has presented the dilutive effect of the 1.75% Debentures using the if-converted method, assuming conversion at the beginning of the quarter for the three months ended May 31, 2022. Accordingly, to calculate diluted loss per share, the Company adjusted net loss by eliminating the fair value adjustment made to the 1.75% Debentures and interest expense incurred on the 1.75% Debentures for the three months ended May 31, 2022, and added the number of shares that would have been issued upon conversion to the diluted weighted average number of shares outstanding. See Note 5 for details on the 1.75% Debentures.

[2] The Company has not presented the dilutive effect of the 1.75% Debentures using the if-converted method in the calculation of diluted loss per share for the three months ended May 31, 2021, as to do so would be antidilutive. See Note 5 for details on the 1.75% Debentures.

[3] The Company has not presented the dilutive effect of in-the-money options and RSUs that will be settled upon vesting by the issuance of new common shares in the calculation of diluted loss per share for the three months ended May 31, 2022 and May 31, 2021, as to do so would be antidilutive.

[4] The three months ended May 31, 2021, includes approximately 1,421,945 common shares (Exchange Shares) remaining that were subsequently issued on the third anniversary date of the Cylance acquisition completed on February 21, 2019 in consideration for the acquisition.