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The amount of unrealized losses that are related to securities with an unrealized loss position greater than 20% of cost or amortized cost.

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Interest, dividends, rents, ancillary and other revenues earned but not yet received by the entity on its investments.

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The reserve to cover probable credit losses related to specifically identified fixed maturity real estate loans as well as probable credit losses inherent in the remainder of that loan portfolio.

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Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of investment in equity method investee and investment in and advance to affiliate.

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Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments.

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Investments - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Investments - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Schedule of Investments [Line Items]
Net investment income	$ 421	$ 648
Accrued investment income	593		$ 600
Gross gains on fixed income securities	456	126
Gross loss on fixed income securities	(77)	$ (60)
Limited partnership interests	7,087		8,078
Short-term investments	5,671		4,256
Limited partnership interests
Schedule of Investments [Line Items]
Net investment income	(52)
Fixed income securities
Schedule of Investments [Line Items]
Accrued investment income	530
Unrealized losses related to securities with unrealized loss position greater than or equal to 20% of cost or amortized cost	(394)
Mortgage loans
Schedule of Investments [Line Items]
Accrued investment income	15
Agent loans, net
Schedule of Investments [Line Items]
Accrued investment income	$ 2
High credit quality, percentage	87.00%
Allowance	$ (5)
Bank loans, net
Schedule of Investments [Line Items]
Accrued investment income	6
EMA limited partnerships
Schedule of Investments [Line Items]
Limited partnership interests	5,370		6,264
Limited partnership interests
Schedule of Investments [Line Items]
Limited partnership interests	1,717		1,814
Other investments
Schedule of Investments [Line Items]
Limited partnership interests	216		906
Other investments \| EMA limited partnerships
Schedule of Investments [Line Items]
Limited partnership interests	212		902
Other investments \| Limited partnership interests
Schedule of Investments [Line Items]
Limited partnership interests	$ 4		$ 4