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Debt - Schedule of debt (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Aug. 23, 2022
Debt Instrument [Line Items]
Short-term debt	$ 0	$ 1,101
Total short-term and long-term debt, net of debt issuance costs	10,906	12,392
Consolidated Entities, Excluding Consolidated Investments
Debt Instrument [Line Items]
Short-term debt	0	1,101
Total long-term debt	9,426	9,426
Debt issuance costs	(67)	(73)
Total short-term and long-term debt, net of debt issuance costs	9,359	10,454
Debt of consolidated investment entities
Debt Instrument [Line Items]
Total short-term and long-term debt, net of debt issuance costs	$ 1,547	1,938
Debt of consolidated investment entities \| Minimum
Debt Instrument [Line Items]
Interest rate (as a percent)	0.01%
Debt of consolidated investment entities \| Maximum
Debt Instrument [Line Items]
Interest rate (as a percent)	6.39%
CRBGLH notes \| Consolidated Entities, Excluding Consolidated Investments
Debt Instrument [Line Items]
Total long-term debt	$ 326
Senior unsecured notes \| Line of Credit
Debt Instrument [Line Items]
Total short-term and long-term debt, net of debt issuance costs	6,750
Senior unsecured notes \| Line of Credit \| Consolidated Entities, Excluding Consolidated Investments
Debt Instrument [Line Items]
Total long-term debt	$ 6,750	6,750
Senior unsecured notes \| Line of Credit \| Consolidated Entities, Excluding Consolidated Investments \| Minimum
Debt Instrument [Line Items]
Interest rate (as a percent)	3.65%
Senior unsecured notes \| Line of Credit \| Consolidated Entities, Excluding Consolidated Investments \| Maximum
Debt Instrument [Line Items]
Interest rate (as a percent)	6.05%
Senior unsecured notes \| Line of Credit \| Consolidated Entities, Excluding Consolidated Investments
Debt Instrument [Line Items]
Interest rate (as a percent)	3.50%
Short-term debt	$ 0	1,000
CRBGLH notes \| CRBGLH notes
Debt Instrument [Line Items]
Total short-term and long-term debt, net of debt issuance costs	$ 99
CRBGLH notes \| CRBGLH notes \| Consolidated Entities, Excluding Consolidated Investments
Debt Instrument [Line Items]
Interest rate (as a percent)	6.63%
Total long-term debt	$ 99	99
CRBGLH notes \| Line of Credit \| Consolidated Entities, Excluding Consolidated Investments
Debt Instrument [Line Items]
Interest rate (as a percent)	7.50%
Short-term debt	$ 0	101
Hybrid junior subordinated notes \| CRBGLH notes
Debt Instrument [Line Items]
Interest rate (as a percent)			6.875%
Total short-term and long-term debt, net of debt issuance costs	2,350
Hybrid junior subordinated notes \| CRBGLH notes \| Consolidated Entities, Excluding Consolidated Investments
Debt Instrument [Line Items]
Total long-term debt	$ 2,350	2,350
Hybrid junior subordinated notes \| CRBGLH notes \| Consolidated Entities, Excluding Consolidated Investments \| Minimum
Debt Instrument [Line Items]
Interest rate (as a percent)	6.375%
Hybrid junior subordinated notes \| CRBGLH notes \| Consolidated Entities, Excluding Consolidated Investments \| Maximum
Debt Instrument [Line Items]
Interest rate (as a percent)	6.875%
CRBGLH junior subordinated debentures \| CRBGLH junior subordinated debentures
Debt Instrument [Line Items]
Total short-term and long-term debt, net of debt issuance costs	$ 227
CRBGLH junior subordinated debentures \| CRBGLH junior subordinated debentures \| Consolidated Entities, Excluding Consolidated Investments
Debt Instrument [Line Items]
Total long-term debt		$ 227
CRBGLH junior subordinated debentures \| CRBGLH junior subordinated debentures \| Consolidated Entities, Excluding Consolidated Investments \| Minimum
Debt Instrument [Line Items]
Interest rate (as a percent)	7.57%
CRBGLH junior subordinated debentures \| CRBGLH junior subordinated debentures \| Consolidated Entities, Excluding Consolidated Investments \| Maximum
Debt Instrument [Line Items]
Interest rate (as a percent)	8.50%
CRBGLH Junior Subordinated Debt, Due Between 2030 and 2046 \| CRBGLH junior subordinated debentures \| Consolidated Entities, Excluding Consolidated Investments
Debt Instrument [Line Items]
Total long-term debt	$ 227