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Income Taxes - Effective Income Tax Rate Reconciliation (Details) | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Effective tax rate reconciliation |  |  |
U.S. statutory federal income tax rate | 21.00% | 21.00% | 21.00%
(Decrease) increase in taxes resulting from: |  |  |
Tax credits and tax-exempt income | (0.70%) | (0.70%) | (0.90%)
State and local income taxes, net of federal benefit | 2.50% | 2.40% | 3.10%
Non-U.S. subsidiaries’ earnings | (1.00%) | (0.80%) | (0.10%)
Tax settlements and lapse of statute of limitations | (0.50%) | (2.00%) | (2.10%)
Valuation allowances | 0.00% | 0.10% | (0.10%)
Other | 0.20% | 0.30% | 0.70%
Actual tax rates | 21.50% | 20.30% | 21.60%

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