v3.24.0.1
Fair Value - Schedule of Valuation Techniques and Quantitative Inputs and Assumptions used for Financial Assets and Liabilities (Details) - Level 3
$ in Millions
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Asset Management | Embedded value    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value   $ 526
Asset Management | Discounted cash flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Contingent consideration obligations $ 93 86
Asset Management | Discounted cash flow | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Bank loans 605 29
Asset Management | Discounted cash flow | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value 857 128
Due from related parties $ 37 $ 43
Due from related parties, measurement input 0.140 0.150
Asset Management | Discounted cash flow | Discount rate | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Bank loans $ 64 $ 215
Asset Management | Discounted cash flow | Discount rate | VIE, Primary Beneficiary | Bonds    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value 35 $ 25
Investments, measurement input   0.079
Asset Management | Direct capitalization    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value $ 112  
Asset Management | Direct capitalization | Capitalization rate | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.069  
Asset Management | Adjusted transaction value    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value $ 219 $ 429
Equity securities 131  
Asset Management | Adjusted transaction value | Bonds    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value 163  
Asset Management | Option model    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Derivative assets   $ 15
Asset Management | Option model | Volatility rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Derivative assets $ 13  
Derivative assets, measurement input 0.625 0.600
Asset Management | Dividend discount model | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Equity securities   $ 458
Asset Management | Dividend discount model | Discount rate | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Equity securities $ 494  
Equity securities, measurement input 0.135 0.121
Asset Management | Weighted average | Discounted cash flow | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.172 0.287
Due from related parties, measurement input 0.140 0.150
Contingent consideration obligations, measurement input 0.233 0.227
Asset Management | Weighted average | Discounted cash flow | Discount rate | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Bank loans, measurement input 0.094 0.080
Asset Management | Weighted average | Discounted cash flow | Discount rate | VIE, Primary Beneficiary | Bonds    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.107 0.079
Asset Management | Weighted average | Direct capitalization | Capitalization rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.069  
Asset Management | Weighted average | Option model | Volatility rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Derivative assets, measurement input 0.625 0.600
Contingent consideration obligations, measurement input 0.324 0.347
Asset Management | Weighted average | Dividend discount model | Discount rate | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Equity securities, measurement input 0.135 0.121
Asset Management | Minimum | Discounted cash flow | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.105 0.089
Contingent consideration obligations, measurement input 0.200 0.200
Asset Management | Minimum | Discounted cash flow | Discount rate | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Bank loans, measurement input 7.7 6.4
Asset Management | Minimum | Discounted cash flow | Discount rate | VIE, Primary Beneficiary | Bonds    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.061  
Asset Management | Minimum | Option model | Volatility rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Contingent consideration obligations, measurement input 0.314 0.298
Asset Management | Maximum | Discounted cash flow | 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 0.250
Asset Management | Maximum | Discounted cash flow | Discount rate | VIE, Primary Beneficiary    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Bank loans, measurement input 0.110 0.327
Asset Management | Maximum | Discounted cash flow | Discount rate | VIE, Primary Beneficiary | Bonds    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.130  
Asset Management | Maximum | Option model | Volatility rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Contingent consideration obligations, measurement input 0.334 0.396
Retirement Services | Embedded value    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value   $ 959
Retirement Services | Discounted cash flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative   5,841
Retirement Services | Discounted cash flow | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value $ 1,574 $ 506
Investments, measurement input   0.064
AFS, trading and equity securities 14,247 $ 10,671
Retirement Services | Discounted cash flow | Nonperformance risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative 9,059  
Retirement Services | Net tangible asset values | Implied multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value $ 483 $ 529
Investments, measurement input 1.14 1.26
Retirement Services | Reported net asset value    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value   $ 563
Retirement Services | Weighted average | Discounted cash flow | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.112 0.064
AFS, trading and equity securities, measurement input 0.070 0.068
Mortgage loans, measurement input 0.068 0.063
Retirement Services | Weighted average | Discounted cash flow | Nonperformance risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative, measurement input 0.009 0.010
Retirement Services | Weighted average | Discounted cash flow | Option budget    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative, measurement input 0.023 0.019
Retirement Services | Weighted average | Discounted cash flow | Surrender rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative, measurement input 0.087 0.081
Retirement Services | Weighted average | Net tangible asset values | Implied multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 1.14 1.26
Retirement Services | Minimum | Discounted cash flow | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.063  
AFS, trading and equity securities, measurement input 0.023 0.022
Mortgage loans, measurement input 0.025 0.015
Retirement Services | Minimum | Discounted cash flow | Nonperformance risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative, measurement input 0.004 0.001
Retirement Services | Minimum | Discounted cash flow | 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 | Surrender rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative, measurement input 0.060 0.051
Retirement Services | Maximum | Discounted cash flow | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, measurement input 0.135  
AFS, trading and equity securities, measurement input 0.181 0.188
Mortgage loans, measurement input 0.206 0.221
Retirement Services | Maximum | Discounted cash flow | Nonperformance risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative, measurement input 0.014 0.017
Retirement Services | Maximum | Discounted cash flow | Option budget    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative, measurement input 0.060 0.053
Retirement Services | Maximum | Discounted cash flow | Surrender rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Embedded derivative, measurement input 0.134 0.115