Pensions and Postretirement Benefits (Summary of One-Percentage-Point Change in Assumed Healthcare Cost Trend Rate) (Details) $ in Millions	12 Months Ended
Dec. 31, 2015 USD ($)
Summary of One-Percentage-Point Change in the Assumed Healthcare Cost Trend Rate
Effect on total of service and interest cost components in 2015 increase	$ 0.0
Effect on total of service and interest cost components in 2015 decrease	0.0
Effect on postretirement benefit obligation as of December 31, 2015 increase	1.0
Effect on postretirement benefit obligation as of December 31, 2015 decrease	$ (0.9)

No definition available.

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- Definition

Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits.

+ 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 (m)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

+ Details

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- Definition

Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs.

+ References

+ Details

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- Definition

The effect of a one-percentage-point increase in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits.

+ References

+ Details

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- Definition

The effect of a one-percentage-point increase in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs.

+ References

+ Details

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