| **Summary of Significant Accounting Policies (Life Settlement Contracts) (Tables)** | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
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| **Accounting Policies [Abstract]**                                                  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| Life settlement contracts                                                           | The following table details the values for life settlement contracts.  The determination of fair value is discussed in Note D to the Consolidated Financial Statements.December 31, 2014Number of Life Settlement Contracts Fair Value of Life Settlement  Contracts(In millions) Face Amount of Life Insurance Policies(In millions)Estimated maturity during:     201560 $11 $37201660 10 33201750 9 30201850 7 26201950 6 26Thereafter318 39 187Total588 $82 $339 |

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| - Definition
Tabular disclosure of life settlement contracts based on the remaining life expectancy for each of the first five succeeding years from the date of the statement of financial position and thereafter, as well as in the aggregate including: (a) the number of life settlement contracts, (b) the carrying value of the life settlement contracts, and (c) the face value (death benefits) of the life insurance policies underlying the contracts.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Life Settlement Contract -URI http://asc.fasb.org/extlink&oid=6516907Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6385267&loc=d3e42732-111610
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