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Advanced Technology Costs and Other Income (Narrative) (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2013 | Dec. 31, 2012
Advanced Technology Costs and Other Income |  |
Maximum funding for RD&D Program | $ 350 |
RD&D Program Funding by DOE | 80.00% |
RD&D Program Funding by USEC | 20.00% |
Maximum RD&D Program Funding by DOE | 280 |
Maximum RD&D Program Funding by USEC | 70 |
RD&D Program Funding by DOE To Date | 177.8 |
RD&D Program Funding by DOE - Increment 1 | 87.7 |
RD&D Program Funding by DOE - Increment 2 | 45.7 |
RD&D Program Funding by DOE - Increment 3 | 44.4 |
RD&D Program Qualifying Expenditures To Date | 174.6 |
RD&D Program Qualifying Expenditures To Date - DOE Share | 139.7 |
RD&D Program Qualifying Expenditures To Date - DOE Share - Received | 106.7 |
RD&D Program Qualifying Expenditures To Date - DOE Share - Receivable | 33.0 | 4.4
RD&D Program Qualifying Expenditures | 59.5 |
RD&D Program Qualifying Expenditures - DOE Share | 47.6 |
RD&D Program Funding - FY13 Appropriation Annual Rate | $ 110.0 |

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