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v3.22.2.2

Investments (Narrative) (Details) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2022 USD ($) | Sep. 30, 2022 USD ($) Item | Sep. 30, 2021 USD ($) | Dec. 31, 2021 USD ($) Item
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Reclassification of specific investments from fixed maturity securities, available for sale at fair value to fixed maturity securities, held to maturity at amortized cost net of credit allowances | $ 722.0 | $ 722.0 |  |
Unrealized loss from transfer | (53.0) |  |  |
Fixed maturities - held to maturity, at amortized cost, net of credit allowances, fair value | 817.0 | 817.0 |  |
Fixed maturities - held to maturity, at amortized cost, credit allowances | 9.0 | 9.0 |  |
Additional contractual commitments | 2,500.0 | $ 2,500.0 |  |
Contractual commitments, investment period expiration date |  | Dec. 31, 2026 |  |
Fair Value | 21,009.0 | $ 21,009.0 |  | $ 22,308.0
Number of securities held as primary beneficiary | Item |  | 0 |  | 0
Fixed Maturity Securities [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Fixed maturities - held to maturity, at amortized cost | 846.0 | $ 846.0 |  |
Fixed maturities - held to maturity, at amortized cost, net of credit allowances, fair value | 817.0 | 817.0 |  |
Fixed maturities - held to maturity, gross unrealized appreciation | 1.0 | 1.0 |  |
Fixed maturities - held to maturity, gross unrealized depreciation | 21.0 | 21.0 |  |
Fixed maturities - held to maturity, at amortized cost, credit allowances | 9.0 | 9.0 |  |
Aggregate market value of investments in unrealized loss position | 17,983.0 | 17,983.0 |  | $ 9,335.0
Gross unrealized losses on investments in unrealized loss position | 2,310.0 | 2,310.0 |  | 203.0
Fixed maturity securities, duration of unrealized loss, less than 12 months, gross unrealized depreciation | 1,659.0 | 1,659.0 |  | 128.0
Fixed maturity securities, duration of unrealized loss, greater than 12 months, gross unrealized depreciation | 651.0 | 651.0 |  | 75.0
Fair Value | 21,009.0 | $ 21,009.0 |  | $ 22,308.0
Fixed Maturity Securities [Member] | Sales Revenue, Net [Member] | Issuer with the second the largest unrealized loss position [Member] | Issuer [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Percentage threshold of unrealized losses not exceeded by any one single issuer |  | 0.90% |  | 0.50%
Fixed Maturity Securities [Member] | US Government Securities [Member] | Sales Revenue, Net [Member] | Issuer [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Percentage threshold of unrealized losses not exceeded by any one single issuer |  | 5.20% |  | 2.70%
Recorded an Allowance for Credit Losses [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Aggregate market value of investments in unrealized loss position | 23.0 | $ 23.0 |  | $ 16.0
Gross unrealized losses on investments in unrealized loss position | 19.0 | 19.0 |  | 0.4
Fixed maturity securities, duration of unrealized loss, less than 12 months, gross unrealized depreciation | 19.0 | 19.0 |  |
Fixed maturity securities, duration of unrealized loss, greater than 12 months, gross unrealized depreciation |  |  |  |
Asset Backed Securities [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Fixed maturities - held to maturity, at amortized cost | 653.0 | 653.0 |  |
Fixed maturities - held to maturity, at amortized cost, net of credit allowances, fair value | 639.0 | 639.0 |  |
Fixed maturities - held to maturity, gross unrealized appreciation | 1.0 | 1.0 |  |
Fixed maturities - held to maturity, gross unrealized depreciation | 10.0 | 10.0 |  |
Fixed maturities - held to maturity, at amortized cost, credit allowances | 6.0 | 6.0 |  |
Aggregate market value of investments in unrealized loss position | 2,882.0 | 2,882.0 |  | 1,996.0
Gross unrealized losses on investments in unrealized loss position | 164.0 | 164.0 |  | 12.0
Fixed maturity securities, duration of unrealized loss, less than 12 months, gross unrealized depreciation | 158.0 | 158.0 |  | 11.0
Fixed maturity securities, duration of unrealized loss, greater than 12 months, gross unrealized depreciation | 5.0 | 5.0 |  | 1.0
Fair Value | 3,772.0 | 3,772.0 |  | 3,582.0
Corporate Securities [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Fixed maturities - held to maturity, at amortized cost | 160.0 | 160.0 |  |
Fixed maturities - held to maturity, at amortized cost, net of credit allowances, fair value | 147.0 | 147.0 |  |
Fixed maturities - held to maturity, gross unrealized appreciation |  |  |  |
Fixed maturities - held to maturity, gross unrealized depreciation | 11.0 | 11.0 |  |
Fixed maturities - held to maturity, at amortized cost, credit allowances | 2.0 | 2.0 |  |
Aggregate market value of investments in unrealized loss position | 5,243.0 | 5,243.0 |  | 2,605.0
Gross unrealized losses on investments in unrealized loss position | 636.0 | 636.0 |  | 63.0
Fixed maturity securities, duration of unrealized loss, less than 12 months, gross unrealized depreciation | 447.0 | 447.0 |  | 38.0
Fixed maturity securities, duration of unrealized loss, greater than 12 months, gross unrealized depreciation | 189.0 | 189.0 |  | 24.0
Fair Value | 6,397.0 | 6,397.0 |  | 7,557.0
Investment Grade [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Fixed maturity securities, duration of unrealized loss, less than 12 months, gross unrealized depreciation | 1,500.0 | 1,500.0 |  | 116.0
Fixed maturity securities, duration of unrealized loss, greater than 12 months, gross unrealized depreciation | 616.0 | 616.0 |  | 72.0
Private Placement Liquidity Sweep [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Fair Value | 368.0 | 368.0 |  |
Maximum exposure to loss | 3,100.0 | 3,100.0 |  | $ 2,900.0
Commitments to fund investments | $ 2,200.0 | $ 2,200.0 |  |

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