Defined Benefit Pension and Other Postretirement Plans (Details) - USD ($)	9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Contribution made to Pension and Post-retirement Plans	$ 7,400,000	$ 8,400,000
Expected contribution to pension plan during remainder of fiscal year	2,500,000
Other Postretirement Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Contribution made to Pension and Post-retirement Plans	$ 0	$ 0