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Property, Plant and Equipment Property, Plant and Equipment (Tables) (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Property, Plant and Equipment [Line Items] |  |  |  |
Property, Plant and Equipment, Gross | $ 368.1 | $ 368.1 | $ 1,545.3 | $ 1,582.7
Property, Plant and Equipment, Additions |  | 0 | 13.9 | 135.9
Property, Plant and Equipment, Transfers and Changes |  | (63.0) | (1,191.1) | (173.3)
Property, Plant and Equipment, Gross |  | 305.1 | 368.1 | 1,545.3
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment | (317.1) | (317.1) | (358.2) | (351.3)
Depreciation |  | (23.3) | (27.0) | (42.7)
Accumulated Depreciation, Depletion and Amortization, Sale or Disposal of Property, Plant and Equipment |  | 43.2 | 68.1 | 35.8
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment |  | (297.2) | (317.1) | (358.2)
Property, Plant and Equipment, Net | 51.0 | 51.0 | 1,187.1 | 1,231.4
Property, Plant And Equipment, Net Capital Expenditures |  | (23.3) | (13.1) | 93.2
Accumulated Depreciation, Depletion and Amortization, Write-down of Property, Plant and Equipment |  | (19.8) | (1,123.0) | (137.5)
Asset Retirement Charges | 19.8 | 19.8 |  |
Property, Plant and Equipment, Net |  | 7.9 | 51.0 | 1,187.1
Construction in Progress [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property, Plant and Equipment, Gross | 2.7 | 2.7 | 1,111.2 | 1,126.3
Property, Plant and Equipment, Additions |  | 0 | 13.6 | 135.9
Property, Plant and Equipment, Transfers and Changes |  | (2.7) | (1,122.1) | (151.0)
Property, Plant and Equipment, Gross |  | 0 | 2.7 | 1,111.2
Leasehold Improvements [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property, Plant and Equipment, Gross | 183.7 | 183.7 | 182.9 | 187.3
Property, Plant and Equipment, Additions |  | 0 | 0 | 0
Property, Plant and Equipment, Transfers and Changes |  | (42.6) | 0.8 | (4.4)
Property, Plant and Equipment, Gross |  | 141.1 | 183.7 | 182.9
Machinery and Equipment [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property, Plant and Equipment, Gross | 181.7 | 181.7 | 251.2 | 269.1
Property, Plant and Equipment, Additions |  | 0 | 0.3 | 0
Property, Plant and Equipment, Transfers and Changes |  | (17.7) | (69.8) | (17.9)
Property, Plant and Equipment, Gross |  | $ 164.0 | $ 181.7 | $ 251.2

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- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 14 -Article 5 + Details
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- Definition The decrease in accumulated depreciation, depletion and amortization (relating to property, plant and equipment) as a result of sales or disposals of property, plant and equipment during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -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 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 225 -Section 45 -Paragraph 11 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28367520&loc=d3e92212-112881 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Impairment -URI http://asc.fasb.org/extlink&oid=6515133 + Details
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- Definition Amount of acquisition of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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- Definition Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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