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v3.23.1

Investment Information - Maturity profile of available for sale securities) (Details) - USD ($) $ in Millions | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Estimated Fair Value |  |
Due in one year or less | $ 483 | $ 511
Due after one year through five years | 11,405 | 11,016
Due after five years through 10 years | 4,430 | 3,984
Due after 10 years | 155 | 403
Single maturity date | 16,473 | 15,914
Estimated Fair Value | 22,245 | 21,015
Amortized Cost |  |
Due in one year or less | 507 | 537
Due after one year through five years | 11,938 | 11,715
Due after five years through 10 years | 4,840 | 4,527
Due after 10 years | 195 | 480
Single maturity date | 17,480 | 17,259
Cost or Amortized Cost | 23,475 | 22,615
Fixed maturities |  |
Estimated Fair Value |  |
Estimated Fair Value | 20,692 | 19,683
Amortized Cost |  |
Cost or Amortized Cost | 21,922 | 21,282
Residential mortgage backed securities |  |
Estimated Fair Value |  |
Securities without single maturity date | 823 | 795
Amortized Cost |  |
Securities without single maturity date | 891 | 877
Commercial mortgage backed securities |  |
Estimated Fair Value |  |
Securities without single maturity date | 1,035 | 1,047
Amortized Cost |  |
Securities without single maturity date | 1,090 | 1,107
Asset backed securities |  |
Estimated Fair Value |  |
Securities without single maturity date | 2,361 | 1,927
Amortized Cost |  |
Securities without single maturity date | $ 2,461 | $ 2,039

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