Leases (Supplemental Cash Flow Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Feb. 28, 2019
Leases [Abstract]
Operating Lease, Payments	$ 37	$ 40
Finance Lease, Principal Payments	$ 1	$ 2	$ 0