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Fair Value of Financial Instruments - Quantitative Information Regarding Significant Unobservable Inputs Used for Recurring Level 3 Fair Value Measurements of Financial Instruments (Details) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2022 USD ($) | Dec. 31, 2021 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value | $ 6,229 | $ 5,600
Liabilities, fair value | 2,941 | 3,883
Fixed indexed annuities | Discounted cash flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Liabilities, fair value | $ 2,941 | $ 3,883
Minimum | Fixed indexed annuities | Discounted cash flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Market value of option | 0.00% | 0.00%
Swap rates | 1.28% | 0.05%
Mortality multiplier | 100.00% | 100.00%
Surrender rates | 0.25% | 0.25%
Partial withdrawals | 2.00% | 2.00%
Non-performance spread | 0.76% | 0.43%
Option cost | 0.00% | 0.07%
Maximum | Fixed indexed annuities | Discounted cash flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Market value of option | 23.28% | 38.72%
Swap rates | 3.38% | 1.94%
Mortality multiplier | 100.00% | 100.00%
Surrender rates | 70.00% | 70.00%
Partial withdrawals | 29.41% | 23.26%
Non-performance spread | 1.64% | 1.01%
Option cost | 4.97% | 4.97%
Weighted Average | Fixed indexed annuities | Discounted cash flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Market value of option | 0.48% | 3.16%
Swap rates | 2.33% | 1.00%
Mortality multiplier | 100.00% | 100.00%
Surrender rates | 6.38% | 6.26%
Partial withdrawals | 2.74% | 2.72%
Non-performance spread | 1.50% | 0.68%
Option cost | 1.86% | 1.83%
Affiliated Entity | Minimum | Discounted cash flow | Discount rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities |  | 0.1270
Affiliated Entity | Maximum | Discounted cash flow | Discount rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities |  | 0.1270
Affiliated Entity | Weighted Average | Discounted cash flow | Discount rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities |  | 0.1270
Asset-backed securities | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value | $ 4,517 | $ 3,844
Asset-backed securities | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value | $ 160 | $ 115
Asset-backed securities | Minimum | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 41.02% | 52.56%
Asset-backed securities | Minimum | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 66.37% | 93.02%
Asset-backed securities | Maximum | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 228.74% | 260.70%
Asset-backed securities | Maximum | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 100.34% | 108.45%
Asset-backed securities | Weighted Average | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 92.19% | 97.06%
Asset-backed securities | Weighted Average | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 98.38% | 104.95%
Commercial mortgage-backed securities | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value | $ 21 | $ 24
Commercial mortgage-backed securities | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value | $ 16 | $ 11
Commercial mortgage-backed securities | Minimum | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 112.82% | 126.70%
Commercial mortgage-backed securities | Minimum | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 81.41% | 97.91%
Commercial mortgage-backed securities | Maximum | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 112.82% | 126.70%
Commercial mortgage-backed securities | Maximum | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 71.25% | 97.91%
Commercial mortgage-backed securities | Weighted Average | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 112.82% | 126.70%
Commercial mortgage-backed securities | Weighted Average | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 88.63% | 97.91%
Corporates | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value | $ 602 | $ 380
Corporates | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value | 755 | 741
Corporates | Discounted cash flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value | $ 17 | $ 14
Corporates | Minimum | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 0.00% | 0.00%
Corporates | Minimum | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 75.42% | 85.71%
Corporates | Minimum | Discounted cash flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt securities | 0.4400 |
Corporates | Minimum | Discounted cash flow | Discount rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt securities |  | 0.4400
Corporates | Maximum | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 108.46% | 109.69%
Corporates | Maximum | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 124.99% | 119.57%
Corporates | Maximum | Discounted cash flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt securities | 1.0000 |
Corporates | Maximum | Discounted cash flow | Discount rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt securities |  | 1.0000
Corporates | Weighted Average | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 92.11% | 100.91%
Corporates | Weighted Average | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 94.59% | 107.72%
Corporates | Weighted Average | Discounted cash flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt securities | 0.7700 |
Corporates | Weighted Average | Discounted cash flow | Discount rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt securities |  | 0.6200
Municipals | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value | $ 33 | $ 43
Municipals | Minimum | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 106.40% | 135.09%
Municipals | Maximum | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 106.40% | 135.09%
Municipals | Weighted Average | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 106.40% | 135.09%
Residential mortgage-backed securities | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value | $ 9 |
Residential mortgage-backed securities | Minimum | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 0.00% |
Residential mortgage-backed securities | Maximum | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 93.02% |
Residential mortgage-backed securities | Weighted Average | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 93.02% |
Foreign Governments | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value | $ 16 | $ 18
Foreign Governments | Minimum | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 98.73% | 107.23%
Foreign Governments | Maximum | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 99.59% | 116.44%
Foreign Governments | Weighted Average | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 99.32% | 110.11%
Short term investments | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value |  | $ 321
Short term investments | Minimum | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes |  | 100.00%
Short term investments | Maximum | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes |  | 100.00%
Short term investments | Weighted Average | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes |  | 100.00%
Preferred securities | Minimum | Discounted cash flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt securities | 1.0000 |
Preferred securities | Maximum | Discounted cash flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt securities | 1.0000 |
Preferred securities | Weighted Average | Discounted cash flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt securities | 1.0000 |
Preferred securities | Affiliated Entity | Discounted cash flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value | $ 1 |
Preferred securities | Affiliated Entity | Income-Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value |  | $ 2
Discount rate |  | 2.43%
Equity securities | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value |  | $ 3
Equity securities | Minimum | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes |  | 623.00%
Equity securities | Minimum | Broker-quoted | EBITDA multiple |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities | 5.5 | 5.9
Equity securities | Maximum | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes |  | 623.00%
Equity securities | Maximum | Broker-quoted | EBITDA multiple |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities | 5.5 | 5.9
Equity securities | Weighted Average | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes |  | 623.00%
Equity securities | Weighted Average | Broker-quoted | EBITDA multiple |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities | 5.5 | 5.9
Equity securities | Affiliated Entity | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value | $ 6 |
Equity securities | Affiliated Entity | Discounted cash flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value | $ 4 | $ 4
Equity securities | Affiliated Entity | Black Scholes model |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value |  | $ 2
Equity securities | Affiliated Entity | Black Scholes model | Dividend Yield |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities |  | 0.0000
Equity securities | Affiliated Entity | Minimum | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 6050.00% |
Equity securities | Affiliated Entity | Minimum | Discounted cash flow | Discount rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities | 0.1110 |
Equity securities | Affiliated Entity | Minimum | Black Scholes model | Risk Free Rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities |  | 0.0100
Equity securities | Affiliated Entity | Minimum | Black Scholes model | Strike Price |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities |  | 1.50
Equity securities | Affiliated Entity | Minimum | Black Scholes model | Volatility |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities |  | 0.8100
Equity securities | Affiliated Entity | Maximum | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 6050.00% |
Equity securities | Affiliated Entity | Maximum | Discounted cash flow | Discount rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities | 0.1110 |
Equity securities | Affiliated Entity | Maximum | Black Scholes model | Risk Free Rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities |  | 0.0100
Equity securities | Affiliated Entity | Maximum | Black Scholes model | Strike Price |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities |  | 1.50
Equity securities | Affiliated Entity | Maximum | Black Scholes model | Volatility |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities |  | 0.8100
Equity securities | Affiliated Entity | Weighted Average | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 6050.00% |
Equity securities | Affiliated Entity | Weighted Average | Discounted cash flow | Discount rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities | 0.1110 |
Equity securities | Affiliated Entity | Weighted Average | Black Scholes model | Risk Free Rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities |  | 0.0100
Equity securities | Affiliated Entity | Weighted Average | Black Scholes model | Strike Price |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities |  | 1.50
Equity securities | Affiliated Entity | Weighted Average | Black Scholes model | Volatility |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity securities |  | 0.8100
Available-for-sale embedded derivative | Third Party Valuation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Market value of fund |  | 100.00%
Available-for-sale embedded derivative | Black Scholes model |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value | $ 24 |
Market value of fund | 100.00% |
Available-for-sale embedded derivative | Affiliated Entity | Discounted cash flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value |  | $ 34
Secured borrowing receivable | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value | $ 10 |
Secured borrowing receivable | Minimum | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 100.00% |
Secured borrowing receivable | Maximum | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 100.00% |
Secured borrowing receivable | Weighted Average | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes | 100.00% |
Credit linked note | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value | $ 17 |
Offered quotes | 100.00% |
Credit linked note | Affiliated Entity | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Offered quotes |  | 100.00%
Credit linked note | Affiliated Entity | Discounted cash flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value |  | $ 23
Investment in affiliate | Broker-quoted |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value | $ 21 |
Investment in affiliate | Minimum | EBITDA multiple |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment in affiliate | 8 | 8
Investment in affiliate | Maximum | EBITDA multiple |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment in affiliate | 8 | 8
Investment in affiliate | Affiliated Entity | Discounted cash flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets, fair value |  | $ 21

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