Postretirement Benefit Plans (Details 11) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014
Future pension benefit payments
2014	$ 257.6
2015	170.2
2016	146.8
2017	142.3
2018	144.3
2019-2023	718.6
gross postretirement benefits member [Member]
Future pension benefit payments
2014	15.2
2015	29.8
2016	28.4
2017	27.3
2018	26.3
2019-2023	111.5
Expected medicare subsidies [Member]
Future pension benefit payments
2014	0.9
2015	1.8
2016	1.9
2017	2.0
2018	2.0
2019-2023	9.6
Net, Including Medicare Subsidies [Member]
Future pension benefit payments
2014	14.3
2015	28.0
2016	26.5
2017	25.3
2018	24.3
2019-2023	$ 101.9

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Amount of benefits from a defined benefit plan expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ 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=35743120&loc=d3e1928-114920

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of benefits from a defined benefit plan expected to be paid in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of benefits from a defined benefit plan expected to be paid in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of benefits from a defined benefit plan expected to be paid in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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