Investments - Schedule of Commercial Mortgage Loans by Year of Origination and Credit Quality Indicator (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]
Commercial mortgage loans	$ 6,351	$ 6,363
Fixed Rate Commercial Mortgage Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2026	134
2025	608
2024	193
2023	259
2022	842
2021 and prior	4,315
Commercial mortgage loans	6,351	6,363
Less than 1.00 \| Fixed Rate Commercial Mortgage Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2026	0
2025	0
2024	0
2023	0
2022	34
2021 and prior	267
Commercial mortgage loans	301	314
1.00 - 1.25 \| Fixed Rate Commercial Mortgage Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2026	5
2025	43
2024	16
2023	11
2022	41
2021 and prior	309
Commercial mortgage loans	425	425
1.26 - 1.50 \| Fixed Rate Commercial Mortgage Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2026	73
2025	258
2024	76
2023	96
2022	118
2021 and prior	550
Commercial mortgage loans	1,171	1,121
1.51 - 2.00 \| Fixed Rate Commercial Mortgage Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2026	34
2025	178
2024	68
2023	76
2022	390
2021 and prior	1,432
Commercial mortgage loans	2,178	2,188
Greater than 2.00 \| Fixed Rate Commercial Mortgage Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2026	22
2025	129
2024	33
2023	76
2022	259
2021 and prior	1,757
Commercial mortgage loans	2,276	2,315
0% - 50%
Financing Receivable, Credit Quality Indicator [Line Items]
Commercial mortgage loans	2,338	2,396
0% - 50% \| Fixed Rate Commercial Mortgage Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2026	14
2025	102
2024	32
2023	83
2022	128
2021 and prior	1,979
Commercial mortgage loans	2,338
51% - 60%
Financing Receivable, Credit Quality Indicator [Line Items]
Commercial mortgage loans	1,260	1,261
51% - 60% \| Fixed Rate Commercial Mortgage Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2026	16
2025	99
2024	55
2023	38
2022	208
2021 and prior	844
Commercial mortgage loans	1,260
61% - 75%
Financing Receivable, Credit Quality Indicator [Line Items]
Commercial mortgage loans	2,489	2,424
61% - 75% \| Fixed Rate Commercial Mortgage Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2026	104
2025	407
2024	106
2023	138
2022	464
2021 and prior	1,270
Commercial mortgage loans	2,489
76% - 100%
Financing Receivable, Credit Quality Indicator [Line Items]
Commercial mortgage loans	233	251
76% - 100% \| Fixed Rate Commercial Mortgage Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2026	0
2025	0
2024	0
2023	0
2022	42
2021 and prior	191
Commercial mortgage loans	233
Greater than 100%
Financing Receivable, Credit Quality Indicator [Line Items]
Commercial mortgage loans	31	$ 31
Greater than 100% \| Fixed Rate Commercial Mortgage Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2026	0
2025	0
2024	0
2023	0
2022	0
2021 and prior	31
Commercial mortgage loans	$ 31

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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