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v3.23.1

Long-Duration Insurance Contracts - Account Balances by Guaranteed Minimum Interest Rates (Details) $ in Millions | Mar. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
--- | --- | ---
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | $ 5,234.6 | $ 5,260.6
Less than 2% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 947.4 | 943.6
Equal to 2% but less than 3% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 276.0 | 280.6
Equal to 3% but less than 4% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 654.4 | 668.2
Equal to 4% but less than 5% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 2,705.6 | 2,706.1
5% or higher |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 90.9 | 91.7
Policyholder account balance with a guaranteed minimum crediting rate |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | $ 4,674.3 | $ 4,690.2
Minimum | Equal to 2% but less than 3% |  |
Policyholder Account Balance [Line Items] |  |
Policyholder account balance, guaranteed minimum credit rating | 2.00% | 2.00%
Minimum | Equal to 3% but less than 4% |  |
Policyholder Account Balance [Line Items] |  |
Policyholder account balance, guaranteed minimum credit rating | 3.00% | 3.00%
Minimum | Equal to 4% but less than 5% |  |
Policyholder Account Balance [Line Items] |  |
Policyholder account balance, guaranteed minimum credit rating | 4.00% | 4.00%
Minimum | 5% or higher |  |
Policyholder Account Balance [Line Items] |  |
Policyholder account balance, guaranteed minimum credit rating | 5.00% | 5.00%
Maximum | Less than 2% |  |
Policyholder Account Balance [Line Items] |  |
Policyholder account balance, guaranteed minimum credit rating | 2.00% | 2.00%
Maximum | Equal to 2% but less than 3% |  |
Policyholder Account Balance [Line Items] |  |
Policyholder account balance, guaranteed minimum credit rating | 3.00% | 3.00%
Maximum | Equal to 3% but less than 4% |  |
Policyholder Account Balance [Line Items] |  |
Policyholder account balance, guaranteed minimum credit rating | 4.00% | 4.00%
Maximum | Equal to 4% but less than 5% |  |
Policyholder Account Balance [Line Items] |  |
Policyholder account balance, guaranteed minimum credit rating | 5.00% | 5.00%
At Guaranteed Minimum | Less than 2% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | $ 95.5 | $ 262.5
At Guaranteed Minimum | Equal to 2% but less than 3% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 232.8 | 256.1
At Guaranteed Minimum | Equal to 3% but less than 4% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 653.5 | 667.4
At Guaranteed Minimum | Equal to 4% but less than 5% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 2,705.6 | 2,706.1
At Guaranteed Minimum | 5% or higher |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 90.9 | 91.7
At Guaranteed Minimum | Policyholder account balance with a guaranteed minimum crediting rate |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 3,778.3 | 3,983.8
1-50 Basis Points Above | Less than 2% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 393.9 | 370.6
1-50 Basis Points Above | Equal to 2% but less than 3% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 36.4 | 19.8
1-50 Basis Points Above | Equal to 3% but less than 4% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 0.4 | 0.4
1-50 Basis Points Above | Equal to 4% but less than 5% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 0.0 | 0.0
1-50 Basis Points Above | 5% or higher |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 0.0 | 0.0
1-50 Basis Points Above | Policyholder account balance with a guaranteed minimum crediting rate |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | $ 430.7 | $ 390.8
1-50 Basis Points Above | Minimum |  |
Policyholder Account Balance [Line Items] |  |
Policyholder account balance, above guaranteed minimum crediting rate | 0.0001 | 0.0001
1-50 Basis Points Above | Maximum |  |
Policyholder Account Balance [Line Items] |  |
Policyholder account balance, above guaranteed minimum crediting rate | 0.0050 | 0.0050
51-150 Basis Points Above | Less than 2% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | $ 329.9 | $ 214.4
51-150 Basis Points Above | Equal to 2% but less than 3% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 6.8 | 4.7
51-150 Basis Points Above | Equal to 3% but less than 4% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 0.5 | 0.4
51-150 Basis Points Above | Equal to 4% but less than 5% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 0.0 | 0.0
51-150 Basis Points Above | 5% or higher |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 0.0 | 0.0
51-150 Basis Points Above | Policyholder account balance with a guaranteed minimum crediting rate |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | $ 337.2 | $ 219.5
51-150 Basis Points Above | Minimum |  |
Policyholder Account Balance [Line Items] |  |
Policyholder account balance, above guaranteed minimum crediting rate | 0.0051 | 0.0051
51-150 Basis Points Above | Maximum |  |
Policyholder Account Balance [Line Items] |  |
Policyholder account balance, above guaranteed minimum crediting rate | 0.0150 | 0.0150
Greater Than 150 Basis Points Above | Less than 2% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | $ 128.1 | $ 96.1
Greater Than 150 Basis Points Above | Equal to 2% but less than 3% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 0.0 | 0.0
Greater Than 150 Basis Points Above | Equal to 3% but less than 4% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 0.0 | 0.0
Greater Than 150 Basis Points Above | Equal to 4% but less than 5% |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 0.0 | 0.0
Greater Than 150 Basis Points Above | 5% or higher |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | 0.0 | 0.0
Greater Than 150 Basis Points Above | Policyholder account balance with a guaranteed minimum crediting rate |  |
Policyholder Account Balance [Line Items] |  |
Policyholders' account balances | $ 128.1 | $ 96.1
Greater Than 150 Basis Points Above | Minimum |  |
Policyholder Account Balance [Line Items] |  |
Policyholder account balance, above guaranteed minimum crediting rate | 0.0150 | 0.0150

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