Net Earnings Per Share (Basic And Dilutive Net Earnings Per Share Reconciliations) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	May 31, 2021	May 31, 2020
Schedule of Basic and Dilutive Net Earnings Per Share Reconciliation [Line Items]
Net earnings	$ 436,756	$ 4,978
Weighted average common shares outstanding, shares	163,151	162,673
Weighted average common shares and dilutive potential common shares, shares	166,295	163,537
Basic net earnings per share (in dollars per share)	$ 2.68	$ 0.03
Diluted net earnings per share (in dollars per share)	$ 2.63	$ 0.03
Stock options
Schedule of Basic and Dilutive Net Earnings Per Share Reconciliation [Line Items]
Dilutive potential common shares, shares	2,529	527
Stock-settled stock units and awards
Schedule of Basic and Dilutive Net Earnings Per Share Reconciliation [Line Items]
Dilutive potential common shares, shares	615	337