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Fair Value Measurements (Details 4) (USD $) In Millions, unless otherwise specified | Mar. 31, 2014 | Dec. 31, 2013 | Mar. 31, 2013 | Dec. 31, 2012
--- | --- | --- | --- | ---
Financial assets: |  |  |  |  |  |
Cash and cash equivalents | $ 1,876 |  | $ 1,639 |  | $ 1,529 | $ 1,705
Mortgage loans | 888 |  | 781 |  |  |
Policy loans | 235 |  | 238 |  |  |
Financial liabilities: |  |  |  |  |  |
Long-term debt | 913 |  | 913 |  |  |
Level 1 [Member] |  |  |  |  |  |
Financial assets: |  |  |  |  |  |
Cash and cash equivalents | 1,876 |  | 1,639 |  |  |
Mortgage loans | 0 |  | 0 |  |  |
Policy loans | 0 |  | 0 |  |  |
Total financial assets not accounted for at fair value | 1,876 |  | 1,639 |  |  |
Financial liabilities: |  |  |  |  |  |
Annuity benefits accumulated | 0 | [1] | 0 | [1] |  |
Long-term debt | 0 |  | 0 |  |  |
Total financial liabilities not accounted for at fair value | 0 |  | 0 |  |  |
Level 2 [Member] |  |  |  |  |  |
Financial assets: |  |  |  |  |  |
Cash and cash equivalents | 0 |  | 0 |  |  |
Mortgage loans | 0 |  | 0 |  |  |
Policy loans | 0 |  | 0 |  |  |
Total financial assets not accounted for at fair value | 0 |  | 0 |  |  |
Financial liabilities: |  |  |  |  |  |
Annuity benefits accumulated | 0 | [1] | 0 | [1] |  |
Long-term debt | 942 |  | 909 |  |  |
Total financial liabilities not accounted for at fair value | 942 |  | 909 |  |  |
Level 3 [Member] |  |  |  |  |  |
Financial assets: |  |  |  |  |  |
Cash and cash equivalents | 0 |  | 0 |  |  |
Mortgage loans | 886 |  | 779 |  |  |
Policy loans | 235 |  | 238 |  |  |
Total financial assets not accounted for at fair value | 1,121 |  | 1,017 |  |  |
Financial liabilities: |  |  |  |  |  |
Annuity benefits accumulated | 20,860 | [1] | 19,959 | [1] |  |
Long-term debt | 76 |  | 76 |  |  |
Total financial liabilities not accounted for at fair value | 20,936 |  | 20,035 |  |  |
Carrying Value [Member] |  |  |  |  |  |
Financial assets: |  |  |  |  |  |
Cash and cash equivalents | 1,876 |  | 1,639 |  |  |
Mortgage loans | 888 |  | 781 |  |  |
Policy loans | 235 |  | 238 |  |  |
Total financial assets not accounted for at fair value | 2,999 |  | 2,658 |  |  |
Financial liabilities: |  |  |  |  |  |
Annuity benefits accumulated | 21,542 | [1] | 20,741 | [1] |  |
Long-term debt | 913 |  | 913 |  |  |
Total financial liabilities not accounted for at fair value | 22,455 |  | 21,654 |  |  |
Fair Value [Member] |  |  |  |  |  |
Financial assets: |  |  |  |  |  |
Cash and cash equivalents | 1,876 |  | 1,639 |  |  |
Mortgage loans | 886 |  | 779 |  |  |
Policy loans | 235 |  | 238 |  |  |
Total financial assets not accounted for at fair value | 2,997 |  | 2,656 |  |  |
Financial liabilities: |  |  |  |  |  |
Annuity benefits accumulated | 20,860 | [1] | 19,959 | [1] |  |
Long-term debt | 1,018 |  | 985 |  |  |
Total financial liabilities not accounted for at fair value | $ 21,878 |  | $ 20,944 |  |  |
[1] | Excludes life contingent annuities in the payout phase.

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3044-108585 + Details
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- Definition Amount before allowance of loans made to policy and contract holders using their life insurance contracts' cash value or separate accounts as collateral. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums over and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(a)(7)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(e)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Subparagraph e -Article 7 + Details
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