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Accumulated Other Comprehensive Loss - Location of Loss Reclassified from AOCI into Income (Details) - USD ($)
$ in Millions
12 Months Ended
Feb. 28, 2021
Feb. 29, 2020
Selling, marketing and administration [Member]    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Gains and Losses on Cash Flow Hedges $ 0 $ 0