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Income Taxes (Tables) | 3 Months Ended
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Mar. 31, 2024
Income Tax Disclosure [Abstract] |
Tax credit investments expenses and related income tax credits and other tax benefits | The following table presents tax credit investment expenses and associated income tax credits and other income tax benefits for the three months ended March 31:
|  | Three Months Ended March 31, |  |
(Millions) |  | 2024 |  | 2023 |  |  |  |
Proportional amortization recognized in tax provision |  | $ | 47 |  |  | $ | 41 |  |  |  |  |
Income tax credits and Other income tax benefits (a) recognized in tax provision |  | 57 |  |  | 52 |  |  |  |  |
(a) Other income tax benefits are a result of tax deductible expenses generated by our tax credit investments

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