Pension and Other Post-Retirement Benefits (Details 9) $ in Millions	Dec. 31, 2016 USD ($)
Qualified Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
2016	$ 27.0
2017	27.0
2018	27.2
2019	27.5
2020	27.6
Years 2022-2026	142.0
Total	278.3
Nonqualified Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
2016	2.5
2017	2.6
2018	3.2
2019	3.5
2020	3.6
Years 2022-2026	19.2
Total	34.6
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
2016	3.2
2017	3.0
2018	2.7
2019	2.5
2020	2.3
Years 2022-2026	9.9
Total	$ 23.6

Defined benefit plan estimated future benefit payments.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

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=65897934&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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- Definition

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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- Definition

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

+ Details

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- Definition

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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