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Income Taxes (Tables)
 9 Months Ended
Sep. 30, 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 and nine months ended September 30:
Three Months Ended
September 30,		Nine Months Ended
September 30,
(Millions)2024202320242023
Proportional amortization recognized in tax provision
$48 $39 $143 $122 
Income tax credits and Other income tax benefits (a) recognized in tax provision
51 49 164 153 
(a) Other income tax benefits are a result of tax deductible expenses generated by our tax credit investments