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Derivative Instruments And Hedging Activities (Narrative) (Details) - Interest Rate Swaps - Cash Flow Hedging - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Nov. 30, 2022
Nov. 30, 2022
Feb. 28, 2022
Designated As Hedging Instrument      
Derivative [Line Items]      
Additional reclassification from AOCL to CAF income within the next 12 months   $ 47.2  
Derivative, Notional Amount $ 4,680.0 4,680.0 $ 3,640.0
Not Designated as Hedging Instrument [Member]      
Derivative [Line Items]      
Derivative, Gain (Loss) on Derivative, Net 5.0 23.6  
Derivative, Notional Amount $ 1,110.0 $ 1,110.0 $ 578.3