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Divestitures (Details Textuals) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013
Divestitures (Details) [Abstract] |  |  |  |
Ownership percentage by the Company | 50.00% |  | 50.00% |
Fair value portion of investments accounted under the equity method. | $ 900 |  | $ 900 |
Cash invested by third party in joint venture | 900 |  | 900 |
Ownership percentage by third party | 50.00% |  | 50.00% |
Deconsolidation gain amount, before tax | 626 | 0 | 626 | 0
Deconsolidation gain amount, after tax |  |  | $ 409 |

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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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