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Summary of Significant Accounting Policies Narrative (Details) (USD $) |  |  |  |  | 12 Months Ended | 8 Months Ended |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2013 Restricted cash [Member] | Dec. 31, 2012 Restricted cash [Member] | Dec. 31, 2013 Automotive Segment [Member] | Dec. 31, 2012 Automotive Segment [Member] | Dec. 31, 2011 Automotive Segment [Member] | Dec. 31, 2012 Energy Segment [Member] | Dec. 31, 2013 Energy Segment [Member] | Dec. 31, 2013 Nitrogen Fertilizer [Member] Energy Segment [Member] | Dec. 31, 2013 Maximum [Member] | Dec. 31, 2013 Maximum [Member] Refineries [Member] Energy Segment [Member] | Dec. 31, 2013 Minimum [Member] | Dec. 31, 2013 Minimum [Member] Refineries [Member] Energy Segment [Member] | Dec. 31, 2013 Machinery, Equipment, and Furniture [Member] Maximum [Member] | Dec. 31, 2013 Machinery, Equipment, and Furniture [Member] Minimum [Member] | Dec. 31, 2013 Assets Leased to Others [Member] Maximum [Member] | Dec. 31, 2013 Building and Improvements [Member] Maximum [Member] | Dec. 31, 2013 Building and Improvements [Member] Minimum [Member]
Schedule of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash held at consolidated affiliated partnerships and restricted cash | $ 396,000,000 | $ 963,000,000 | $ 330,000,000 | $ 197,000,000 | $ 0 | $ 0 |  | $ 0 | $ 0 |  |  |  |  |  |  |  |  |  |
Debt | 9,295,000,000 | 9,873,000,000 |  |  | 2,586,000,000 | 2,805,000,000 |  | 926,000,000 | 676,000,000 |  |  |  |  |  |  |  |  |  |
Fair value of long-term debt | 9,400,000,000 | 9,900,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Planned major maintenance |  |  |  |  |  |  |  | 107,000,000 |  |  |  |  |  |  |  |  |  |  |
Property, plant and equipment, useful life (in years) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30 years | 1 year | 30 years | 40 years | 4 years
Planned major maintenance, frequency (in years) |  |  |  |  |  |  |  |  |  | 2 years |  | 5 years |  | 4 years |  |  |  |  |
Special profits interest allocations percentage |  |  |  |  |  |  |  |  |  |  | 2.50% |  | 1.50% |  |  |  |  |  |
Incentive allocation percentage |  |  |  |  |  |  |  |  |  |  | 25.00% |  | 15.00% |  |  |  |  |  |
Research and development expense |  |  |  |  | $ 177,000,000 | $ 179,000,000 | $ 172,000,000 |  |  |  |  |  |  |  |  |  |  |  |

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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373 + Details
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