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Income Taxes - Effective Income Tax Rate (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Reconciliation between the U.S. corporate income tax rate and the effective income tax rate from continuing operations |  |  |  |
U.S. corporate income tax rate (as a percent) | 21.00% | 21.00% | 21.00% | 21.00%
Dividends received deduction (as a percent) | (1.00%) | (1.00%) | (3.00%) | (1.00%)
Tax credits (as a percent) | (1.00%) | (1.00%) | (3.00%) | (1.00%)
Impact of equity method presentation (as a percent) |  |  | (1.00%) |
Low income housing tax credit amortization (as a percent) |  |  | 2.00% |
Global Intangible Low-Taxed Income (as a percent) | 2.00% | 1.00% | 3.00% | 1.00%
Other income tax rate impacts (as a percent) | 1.00% |  | (1.00%) |
Effective income tax rate (as a percent) | 22.00% | 20.00% | 18.00% | 20.00%
Corporate alternative minimum tax accrual | $ 72.5 |  | $ 72.5 |

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- Definition Percentage of the difference between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to low income housing tax credit amortization. + References No definition available. + Details
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