Investments (Variable Interest Entities) (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Variable Interest Entity [Line Items]
Carrying Amount	$ 14,980	$ 14,591
Maximum Exposure to Loss	15,598	15,978
Fixed maturity securities
Variable Interest Entity [Line Items]
Carrying Amount	13,219	12,848
Maximum Exposure to Loss	12,609	12,848
Limited partnerships and LLCs
Variable Interest Entity [Line Items]
Carrying Amount	1,761	1,743
Maximum Exposure to Loss	$ 2,989	$ 3,130

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.

No definition available.

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- Definition

Carrying amount of the assets in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), where the reporting entity is not the VIE's primary beneficiary.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph a
-URI http://asc.fasb.org/extlink&oid=108788376&loc=d3e5728-111685

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- Definition

Carrying amount of the liabilities in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), where the reporting entity is not the VIE's primary beneficiary.

+ References

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