v3.20.2

Investments (Maturities of Fixed Maturity Securities) (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Amortized cost, due in one year or less	$ 35
Amortized cost, due after one year through five years	513
Amortized cost, due after five years through ten years	1,040
Amortized cost, due after ten years	878
Amortized cost, Structured Securities	810
Fixed maturity securities, amortized cost	3,276	$ 2,897
Estimated fair value, due in one year or less	36
Estimated fair value, due after one year through five years	549
Estimated fair value, due after five years through ten years	1,133
Estimated fair value, due after ten years	1,029
Estimated fair value, Structured Securities	860
Fixed maturity securities, estimated fair value	$ 3,607	$ 3,067

Amortized cost of 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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