Investments - Schedule of Information About Credit Quality and Vintage Year of Commercial Mortgage Loans (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	$ 999	$ 1,833
Year two	2,265	866
Year three	879	641
Year four	548	826
Year five	633	796
Prior	5,685	5,249
Revolving Loans	0	0
Total with ACL	$ 11,009	$ 10,211
% of Total	100.00%	100.00%
Commercial mortgage loans
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	$ 752	$ 1,346
Year two	1,693	639
Year three	691	608
Year four	535	789
Year five	615	722
Prior	5,252	4,853
Revolving Loans	0	0
Total with ACL	$ 9,538	$ 8,957
% of Total	100.00%	100.00%
Commercial mortgage loans \| Non-income producing properties
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	$ 1
Year two	47
Year three	4
Year four	8
Year five	9
Prior	1
Revolving Loans	0
Total with ACL	$ 70
% of Total	1.00%
Residential mortgage loans
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	$ 247	$ 487
Year two	572	227
Year three	188	33
Year four	13	37
Year five	18	74
Prior	433	396
Revolving Loans	0	0
Total with ACL	$ 1,471	$ 1,254
% of Total	100.00%	100.00%
Residential mortgage loans \| Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	$ 247	$ 487
Year two	571	223
Year three	184	17
Year four	6	17
Year five	11	71
Prior	406	375
Revolving Loans	0	0
Total with ACL	$ 1,425	$ 1,190
% of Total	97.00%	95.00%
Residential mortgage loans \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	$ 0	$ 0
Year two	1	4
Year three	4	16
Year four	7	20
Year five	7	3
Prior	27	21
Revolving Loans	0	0
Total with ACL	$ 46	$ 64
% of Total	3.00%	5.00%
Greater than 1.20x \| Commercial mortgage loans
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	$ 718	$ 1,313
Year two	1,344	615
Year three	648	538
Year four	429	594
Year five	479	434
Prior	4,560	4,591
Revolving Loans	0	0
Total with ACL	$ 8,178	$ 8,085
% of Total	86.00%	90.00%
1.00x - 1.20x \| Commercial mortgage loans
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	$ 21	$ 33
Year two	147	24
Year three	0	70
Year four	82	145
Year five	38	174
Prior	382	231
Revolving Loans	0	0
Total with ACL	$ 670	$ 677
% of Total	7.00%	8.00%
Less than 1.00x \| Commercial mortgage loans
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	$ 12	$ 0
Year two	155	0
Year three	39	0
Year four	16	50
Year five	89	114
Prior	309	31
Revolving Loans	0	0
Total with ACL	$ 620	$ 195
% of Total	6.00%	2.00%
Less than 70% \| Commercial mortgage loans
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	$ 668	$ 1,140
Year two	1,461	508
Year three	560	521
Year four	466	466
Year five	407	345
Prior	4,434	4,296
Revolving Loans	0	0
Total with ACL	$ 7,996	$ 7,276
% of Total	84.00%	81.00%
70% - 80% \| Commercial mortgage loans
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	$ 84	$ 206
Year two	232	129
Year three	128	62
Year four	44	221
Year five	128	353
Prior	609	316
Revolving Loans	0	0
Total with ACL	$ 1,225	$ 1,287
% of Total	13.00%	14.00%
80% - 100% \| Commercial mortgage loans
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	$ 0	$ 0
Year two	0	0
Year three	0	25
Year four	25	46
Year five	25	24
Prior	121	151
Revolving Loans	0	0
Total with ACL	$ 171	$ 246
% of Total	2.00%	3.00%
Greater than 100% \| Commercial mortgage loans
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	$ 0	$ 0
Year two	0	2
Year three	3	0
Year four	0	56
Year five	55	0
Prior	88	90
Revolving Loans	0	0
Total with ACL	$ 146	$ 148
% of Total	1.00%	2.00%

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

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