Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Feb. 29, 2020	Feb. 28, 2019	Feb. 28, 2018
Statement of Comprehensive Income [Abstract]
NET EARNINGS	$ 888,433	$ 842,413	$ 664,112
Other comprehensive (loss) income, net of taxes:
Net change in retirement benefit plan unrecognized actuarial losses	(50,824)	(1,981)	(1,371)
Net change in cash flow hedge unrecognized losses	(31,237)	(11,717)	14,194
Other comprehensive (loss) income, net of taxes	(82,061)	(13,698)	12,823
TOTAL COMPREHENSIVE INCOME	$ 806,372	$ 828,715	$ 676,935