Commitments and Contingencies Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	7 Months Ended	10 Months Ended
Dec. 31, 2013	Mar. 31, 2014
Loss Contingencies [Line Items]
Accrual for Environmental Loss Contingencies, Payments		$ 97.3
Environmental Remediation Expense	$ 114
Minimum [Member]
Loss Contingencies [Line Items]
Estimated Percentage of Environmental Remediation Expense Estimate to be Recovered Through Insurance Proceeds		33.33333%
Maximum [Member]
Loss Contingencies [Line Items]
Estimated Percentage of Environmental Remediation Expense Estimate to be Recovered Through Insurance Proceeds		66.66667%

Estimated Percentage of Environmental Remediation Expense Estimate to be Recovered Through Insurance Proceeds

No definition available.

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- Definition

The aggregate amount disbursed during the reporting period to settle environmental loss contingencies.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 5.Y.Q2)

-URI http://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751

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- Definition

The charge against earnings in the period for known or estimated future costs arising from requirements to perform environmental remediation activities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 410

-SubTopic 30

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13296-110859

+ Details

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- Details

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