Financial Instruments (Schedule of Outstanding Currency Price Risk Management Instruments) (Details) (Forward Exchange Contracts [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
---|---|---|
Sep. 30, 2012
|
Sep. 30, 2011
|
|
Derivative [Line Items] | ||
US$ Notional | $ 2,605.7 | $ 2,374.2 |
Years Average Maturity | 12 months | 10 months |
Cash Flow Hedges [Member]
|
||
Derivative [Line Items] | ||
US$ Notional | 1,348.8 | 1,512.1 |
Years Average Maturity | 7 months | 5 months |
Net Investment Hedges [Member]
|
||
Derivative [Line Items] | ||
US$ Notional | 779.2 | 635.8 |
Years Average Maturity | 2 years 6 months | 2 years |
Hedges Not Designated [Member]
|
||
Derivative [Line Items] | ||
US$ Notional | $ 477.7 | $ 226.3 |
Years Average Maturity | 1 month | 1 month |