Debentures - Change in Fair Value (Details) - USD ($) $ in Millions	3 Months Ended
	May 31, 2024	May 31, 2023
Debt Instrument [Line Items]
Debenture, Fair Value, beginning balance	$ 194
Debenture, Fair Value, ending balance	194
2020 Debentures
Debt Instrument [Line Items]
Debenture total fair value adjustment	$ 0	$ 22