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Investments - Other investments by type (Details) - USD ($) $ in Millions | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Schedule of Investments [Line Items] |  |
Other | $ 4,125 | $ 3,972
Bank loans |  |
Schedule of Investments [Line Items] |  |
Other | 1,702 | 1,702
Policy loans |  |
Schedule of Investments [Line Items] |  |
Other | 894 | 905
Real estate |  |
Schedule of Investments [Line Items] |  |
Other | 769 | 632
Agent loans |  |
Schedule of Investments [Line Items] |  |
Other | 570 | 538
Other |  |
Schedule of Investments [Line Items] |  |
Other | $ 190 | $ 195

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- Definition Amount of investments classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(f,g)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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