Annual report pursuant to Section 13 and 15(d)

Derivative Instruments (Narrative) (Details)

v2.4.0.6
Derivative Instruments (Narrative) (Details) (Forward Contracts [Member], Cash Flow Hedging [Member], USD $)
In Millions, unless otherwise specified
May 31, 2009
Feb. 29, 2008
Forward Contracts [Member] | Cash Flow Hedging [Member]
   
Interest rate swap cash flow hedge, notional amount $ 100 $ 100