Derivative Instruments And Hedging Activities (Narrative) (Details) (Interest Rate Swaps [Member], USD $)
In Millions, unless otherwise specified
3 Months Ended
May 31, 2014
Feb. 28, 2014
Designated As Hedging Instrument [Member] | Cash Flow Hedging [Member]
   
Derivative [Line Items]    
Additional reclassification as decrease from AOCL to CAF income $ 10.7  
Derivative notional amount 950.0 869.0
Not Designated As Hedging Instrument [Member]
   
Derivative [Line Items]    
Offsetting notional amount of interest rate derivatives $ 0 $ 0