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Investments - Schedule of Commercial Mortgage Loan, Gross of Valuation Allowance, By Property Type and Region (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Schedule of Investments [Line Items]
Allowance for expected credit loss	$ (70)	$ (66)	$ (42)
Loans, net	5,926	5,336
Commercial mortgage
Schedule of Investments [Line Items]
Gross Carrying Value	2,722	2,550
Allowance for expected credit loss	(17)	(12)	$ (10)
Loans, net	$ 2,705	$ 2,538
% of Total	100.00%	100.00%
East North Central | Commercial mortgage
Schedule of Investments [Line Items]
Gross Carrying Value	$ 98	$ 151
% of Total	4.00%	6.00%
East South Central | Commercial mortgage
Schedule of Investments [Line Items]
Gross Carrying Value	$ 75	$ 75
% of Total	3.00%	3.00%
Middle Atlantic | Commercial mortgage
Schedule of Investments [Line Items]
Gross Carrying Value	$ 354	$ 354
% of Total	13.00%	14.00%
Mountain | Commercial mortgage
Schedule of Investments [Line Items]
Gross Carrying Value	$ 409	$ 352
% of Total	15.00%	14.00%
New England | Commercial mortgage
Schedule of Investments [Line Items]
Gross Carrying Value	$ 164	$ 168
% of Total	6.00%	6.00%
Pacific | Commercial mortgage
Schedule of Investments [Line Items]
Gross Carrying Value	$ 706	$ 766
% of Total	26.00%	30.00%
South Atlantic | Commercial mortgage
Schedule of Investments [Line Items]
Gross Carrying Value	$ 683	$ 563
% of Total	25.00%	22.00%
West North Central | Commercial mortgage
Schedule of Investments [Line Items]
Gross Carrying Value	$ 62	$ 4
% of Total	2.00%	0.00%
West South Central | Commercial mortgage
Schedule of Investments [Line Items]
Gross Carrying Value	$ 171	$ 117
% of Total	6.00%	5.00%
Hotel | Commercial mortgage
Schedule of Investments [Line Items]
Gross Carrying Value	$ 17	$ 18
% of Total	1.00%	1.00%
Industrial | Commercial mortgage
Schedule of Investments [Line Items]
Gross Carrying Value	$ 657	$ 616
% of Total	24.00%	24.00%
Mixed Use | Commercial mortgage
Schedule of Investments [Line Items]
Gross Carrying Value	$ 11	$ 11
% of Total	0.00%	0.00%
Multifamily | Commercial mortgage
Schedule of Investments [Line Items]
Gross Carrying Value	$ 1,006	$ 1,012
% of Total	37.00%	40.00%
Office | Commercial mortgage
Schedule of Investments [Line Items]
Gross Carrying Value	$ 349	$ 316
% of Total	13.00%	13.00%
Retail | Commercial mortgage
Schedule of Investments [Line Items]
Gross Carrying Value	$ 98	$ 102
% of Total	4.00%	4.00%
Student Housing | Commercial mortgage
Schedule of Investments [Line Items]
Gross Carrying Value	$ 83	$ 83
% of Total	3.00%	3.00%
Other | Commercial mortgage
Schedule of Investments [Line Items]
Gross Carrying Value	$ 501	$ 392
% of Total	18.00%	15.00%

X

- Definition

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

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Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

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