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Pension and Postretirement Health and Life Benefits (Narrative) (Details) (Defined Benefit Pension Plans [Member], USD $) In Millions, unless otherwise specified | 3 Months Ended
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Mar. 31, 2014
Defined Benefit Pension Plans [Member] |
Expected defined benefit plan contributions for current fiscal year | $ 28.7
Expected defined benefit plan contributions for current fiscal year under ERISA | 26.5
Expected defined benefit plan contributions for current fiscal year for non-qualified plans | 2.2
USEC contributions | 5.8
Defined Benefit Plan, Lump Sum Benefits Paid | $ 5.0

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- Definition The increase in the fair value of plan assets from contributions made by the employer. + 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 (b)(3) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
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- Definition Amount of employer's best estimate of contributions expected to be paid to the plan in the current remaining fiscal period. + References No definition available. + Details
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- Definition Defined Benefit Plan, Lump Sum Benefits Paid + References No definition available. + Details
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- Definition Expected defined benefit plan contributions for current fiscal year for non-qualified plans + References No definition available. + Details
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- Definition Expected defined benefit plan contributions for current fiscal year under ERISA + References No definition available. + Details
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