v3.26.1
Fair Value - Schedule of Valuation Techniques and Quantitative Inputs and Assumptions used for Financial Assets and Liabilities (Details)
$ in Millions
Mar. 31, 2026
USD ($)
Dec. 31, 2025
USD ($)
Asset Management    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value $ 2,161 $ 1,696
Due from related parties 15 15
Derivative assets 42 7
Contingent consideration obligations 56 72
Due to related parties 84  
Asset Management | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value 2,895 3,078
Asset Management | Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value 1,586 1,197
Due from related parties 15 15
Derivative assets 2 7
Contingent consideration obligations 56 72
Due to related parties 84  
Asset Management | Level 3 | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value 1,938 2,939
Asset Management | Discounted cash flow | Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Contingent consideration obligations 56 72
Asset Management | Discounted cash flow | Level 3 | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value 273 850
Due from related parties $ 15 $ 15
Due from related parties, measurement input 0.148 0.148
Asset Management | Discounted cash flow | Level 3 | Discount rate | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Bank loans $ 589 $ 357
Equity securities 364 392
Bank Loans 1  
Asset Management | Discounted cash flow | Level 3 | Discount rate | VIE, Primary Beneficiary | Bonds    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value 200  
Asset Management | Direct capitalization | Level 3 | Capitalization rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value $ 132 $ 154
Investments, measurement input 0.070 0.070
Asset Management | Adjusted transaction value | Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value $ 1,181 $ 193
Asset Management | Adjusted transaction value | Level 3 | Bonds    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value   430
Asset Management | Adjusted transaction value | Level 3 | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Bank loans 270 740
Equity securities 64 1,014
Bank Loans 16  
Asset Management | Adjusted transaction value | Level 3 | VIE, Primary Beneficiary | Bonds    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value 447  
Asset Management | Adjusted transaction value | Level 3 | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Due to related parties 84  
Asset Management | Option model | Level 3 | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Equity securities 4 6
Asset Management | Option model | Level 3 | Volatility rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Derivative assets $ 2 $ 7
Derivative assets, measurement input 0.500 0.400
Asset Management | Minimum | Discounted cash flow | Level 3 | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.052 0.057
Contingent consideration obligations, measurement input 0.210 0.200
Asset Management | Minimum | Discounted cash flow | Level 3 | Discount rate | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Bank loans, measurement input 0.061 0.067
Equity securities, measurement input 0.137 0.100
Bank loans liabilities, measurement input 0.064  
Asset Management | Minimum | Discounted cash flow | Level 3 | Discount rate | VIE, Primary Beneficiary | Bonds    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.065  
Asset Management | Minimum | Option model | Level 3 | Volatility rate | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Equity securities, measurement input 0.650 1.000
Asset Management | Maximum | Discounted cash flow | Level 3 | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.528 0.528
Contingent consideration obligations, measurement input 0.250 0.240
Asset Management | Maximum | Discounted cash flow | Level 3 | Discount rate | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Bank loans, measurement input 0.118 0.139
Equity securities, measurement input 0.137 0.135
Bank loans liabilities, measurement input 0.115  
Asset Management | Maximum | Discounted cash flow | Level 3 | Discount rate | VIE, Primary Beneficiary | Bonds    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.094  
Asset Management | Maximum | Option model | Level 3 | Volatility rate | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Equity securities, measurement input 2.000 1.050
Asset Management | Weighted Average | Discounted cash flow | Level 3 | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.252 0.173
Due from related parties, measurement input 0.148 0.148
Contingent consideration obligations, measurement input 0.239 0.229
Asset Management | Weighted Average | Discounted cash flow | Level 3 | Discount rate | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Bank loans, measurement input 0.088 0.089
Equity securities, measurement input 0.137 0.128
Bank loans liabilities, measurement input 0.090  
Asset Management | Weighted Average | Discounted cash flow | Level 3 | Discount rate | VIE, Primary Beneficiary | Bonds    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.072  
Asset Management | Weighted Average | Direct capitalization | Level 3 | Capitalization rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.070 0.070
Asset Management | Weighted Average | Option model | Level 3 | Volatility rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Derivative assets, measurement input 0.500 0.400
Asset Management | Weighted Average | Option model | Level 3 | Volatility rate | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Equity securities, measurement input 0.955 1.029
Retirement Services    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Derivative assets $ 8,352 $ 9,190
Equity securities 763 822
Embedded derivative 13,549 14,749
Retirement Services | Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Derivative assets 2 2
Equity securities 8 8
Embedded derivative 13,549 14,749
Retirement Services | Discounted cash flow | Level 3 | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value 147 1,313
AFS, trading and equity securities 37,666 31,915
Mortgage loans 96,665 95,524
Retirement Services | Discounted cash flow | Level 3 | Nonperformance risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative 13,549 14,749
Retirement Services | Adjusted transaction value | Level 3 | N/A    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value 2,163  
Retirement Services | Recoverability | Level 3 | Estimated proceeds    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value $ 288 286
Mortgage loans   20
Retirement Services | Reported net asset value | Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value   $ 5
Retirement Services | Minimum | Discounted cash flow | Level 3 | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.140 0.130
AFS, trading and equity securities, measurement input 0.030 0.028
Mortgage loans, measurement input 0.014 0.010
Retirement Services | Minimum | Discounted cash flow | Level 3 | Nonperformance risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative, measurement input 0.005 0.004
Retirement Services | Minimum | Discounted cash flow | Level 3 | Option budget    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative, measurement input 0.005 0.005
Retirement Services | Minimum | Discounted cash flow | Level 3 | Surrender rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative, measurement input 0.062 0.060
Retirement Services | Maximum | Discounted cash flow | Level 3 | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.140 0.140
AFS, trading and equity securities, measurement input 0.235 0.229
Mortgage loans, measurement input 0.314 0.315
Retirement Services | Maximum | Discounted cash flow | Level 3 | Nonperformance risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative, measurement input 0.013 0.01
Retirement Services | Maximum | Discounted cash flow | Level 3 | Option budget    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative, measurement input 0.059 0.059
Retirement Services | Maximum | Discounted cash flow | Level 3 | Surrender rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative, measurement input 0.140 0.142
Retirement Services | Weighted Average | Discounted cash flow | Level 3 | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.140 0.131
AFS, trading and equity securities, measurement input 0.067 0.064
Mortgage loans, measurement input 0.067 0.065
Retirement Services | Weighted Average | Discounted cash flow | Level 3 | Nonperformance risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative, measurement input 0.008 0.006
Retirement Services | Weighted Average | Discounted cash flow | Level 3 | Option budget    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative, measurement input 0.031 0.031
Retirement Services | Weighted Average | Discounted cash flow | Level 3 | Surrender rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative, measurement input 0.097 0.096