Retirement Plan And Other Post-Retirement Benefits (Narrative) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Jun. 30, 2013
Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Company's contributions	$ 42.0
Estimated future contributions in remainder of fiscal year	10.0
VEBA Trusts And 401(h) Accounts [Member]
Defined Benefit Plan Disclosure [Line Items]
Company's contributions	15.8
Estimated future contributions in remainder of fiscal year	$ 2.2