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Investments - Schedule of Distribution of Residential Mortgage Loan Investment by State Concentrations (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Residential mortgage loans
Gross Carrying Value	$ 2,012	$ 1,606
% of Total	100.00%	100.00%
Total mortgage loans
Gross Carrying Value	$ 2,010	$ 1,604
Florida | Residential mortgage loans
Gross Carrying Value	$ 288	$ 234
% of Total	14.00%	15.00%
Texas | Residential mortgage loans
Gross Carrying Value	$ 218	$ 170
% of Total	11.00%	10.00%
New Jersey | Residential mortgage loans
Gross Carrying Value	$ 170	$ 153
% of Total	8.00%	10.00%
California | Residential mortgage loans
Gross Carrying Value	$ 141
% of Total	7.00%
Pennsylvania | Residential mortgage loans
Gross Carrying Value	$ 134
% of Total	7.00%
New York | Residential mortgage loans
Gross Carrying Value	$ 131
% of Total	7.00%
Georgia | Residential mortgage loans
Gross Carrying Value	$ 115
% of Total	6.00%
All Other States | Residential mortgage loans
Gross Carrying Value	$ 813	$ 1,047
% of Total	40.00%	65.00%

X

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Percentage, before allowance for credit loss, of financing receivable to total financing receivable.

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