Retirement Plan And Other Post-Retirement Benefits (Narrative) (Details) (USD $)	9 Months Ended
	Jun. 30, 2014
Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Company's contributions	$ 30,000,000
VEBA Trusts And 401(h) Accounts [Member]
Defined Benefit Plan Disclosure [Line Items]
Company's contributions	2,000,000
Estimated future contributions in remainder of fiscal year	0
Minimum [Member] | Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated future contributions in remainder of fiscal year	0
Maximum [Member] | Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated future contributions in remainder of fiscal year	$ 5,000,000