Employee Retirement Plans (Details 3) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012
Pension Benefit [Member]
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
Fiscal 2013	$ 22.3
Fiscal 2014	23.3
Fiscal 2015	24.6
Fiscal 2016	27.4
Fiscal 2017	28.0
Fiscal 2018-2022	158.0
Other Postretirement Benefits [Member]
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
Fiscal 2013	1.9
Fiscal 2014	1.9
Fiscal 2015	1.9
Fiscal 2016	1.9
Fiscal 2017	1.8
Fiscal 2018-2022	$ 8.7

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Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

+ Details

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- Definition

Amount of benefits expected to be paid in the next fiscal year following the latest fiscal year from a defined benefit plan.

+ References

+ Details

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- Definition

Amount of benefits expected to be paid in the fifth fiscal year following the latest fiscal year from a defined benefit plan.

+ References

+ Details

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- Definition

Amount of benefits expected to be paid in the fourth fiscal year following the latest fiscal year from a defined benefit plan.

+ References

+ Details

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- Definition

Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan.

+ References

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- Definition

Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan.

+ References

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