Investments (Net Inv Inc summary) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Net Investment Income [Line Items]
Gross investment income	$ 229	$ 262
Less: investment expenses	6	6
Total	223	256
Fixed maturities [Member]
Net Investment Income [Line Items]
Gross investment income	201	229
Mortgage loans [Member]
Net Investment Income [Line Items]
Gross investment income	29	29
Other investments [Member]
Net Investment Income [Line Items]
Gross investment income	$ (1)	$ 4

Amount, before 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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Amount of expenses related to the generation of investment income.

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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.

+ References

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