v3.26.3
Income Taxes (Tables)
 9 Months Ended
Sep. 30, 2026
Income Tax Disclosure [Abstract]  
Schedule of Effective Income Tax Rate Reconciliation
A reconciliation of the income tax expense (benefit) and effective tax rate based on the statutory U.S. federal income tax rate is as follows:

Three Months Ended September 30,Nine Months Ended September 30,
2026202520262025
(millions, except for percentages)
Income tax expense (benefit) at U.S. statutory rate of 21%$21 21.0 %$(4)21.0 %$— 21.0 %$(74)21.0 %
Increases (reductions) resulting from:
Taxes attributable to noncontrolling interests— — 57 (311.4)10 503.8 77 (21.9)
State income taxes – net of federal income tax expense (benefit)
1 1.0 8 (44.7)1 50.4 (7)1.9 
Clean energy tax credits(15)(14.9)(20)107.7 (70)(3,526.3)(34)9.6 
Valuation allowance1 1.0 1 (7.6)3 151.1 2 (0.5)
Other – net
(2)(2.0)1 (3.9)— — — 0.1 
Income tax expense (benefit) and effective tax rate from continuing operations$6 6.1 %$43 (238.9)%$(56)(2,800.0)%$(36)10.2 %