Debentures - Impact of Changes in Fair Value of Debentures (Details) - USD ($) $ in Millions	3 Months Ended
	May 31, 2024	May 31, 2023
Debt Instrument [Line Items]
Income (charge) associated with the change in fair value from non-credit components recorded in the consolidated statements of operations	$ 0	$ (22)
2020 Debentures
Debt Instrument [Line Items]
Income (charge) associated with the change in fair value from non-credit components recorded in the consolidated statements of operations	0	(22)
Debenture total fair value adjustment	$ 0	$ (22)