Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(1)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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- Definition

Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan.

+ References

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- Definition

Ultimate trend rate for health care cost for defined benefit postretirement plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (l)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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- Definition

Year ultimate health care cost trend rate is expected to be reached, in CCYY format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (l)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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Pensions and Postretirement Benefits Other Than Pensions (Schedule of Defined Benefit Plan Weighted Average Discount Rate Assumptions) (Details) - Postretirement [Member]	1 Months Ended			11 Months Ended			12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Benefit obligations at December 31							2.99%	4.05%	3.38%
Net periodic benefit cost	3.67%	2.94%	2.99%	4.13%	3.47%	3.82%
Year that the rate reaches the ultimate trend rate							2028	2023	2023
current year medical inflation [Member]
Ultimate inflation rate							6.75%	6.45%	6.85%
ultimate inflation rate [Member]
Ultimate inflation rate							4.75%	5.00%	5.00%