v3.26.1
Income Taxes - Summary of Significant Factors Impact on Difference Between Effective Tax Rate and Federal Statutory Rate (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Income Tax Disclosure [Abstract]        
Income from continuing operations before income tax expense $ 41 $ 15 $ 146 $ 106
U.S. federal statutory tax rate 9 3 31 22
State income taxes, net of federal income tax effect 0 0 1 1
Flow through related to deduction of meters and mixed service costs (1) (1) (4) (4)
Excess deferred tax amortization (1) (1) (5) (5)
Other (1) 0 (4) (1)
Total other adjustments (3) (2) (13) (10)
Effective tax rate $ 6 $ 1 $ 19 $ 13
U.S. federal statutory tax rate, Percent 21.00% 21.00% 21.00% 21.00%
State income taxes, net of federal income tax effect, Percent 0.00% 0.00% 0.70% 0.90%
Flow through related to deduction of meters and mixed service costs, Percent (2.40%) (7.10%) (2.70%) (3.80%)
Excess deferred tax amortization, Percent (2.40%) (7.20%) (3.40%) (4.80%)
Other, Percent (1.90%) 0.00% (2.60%) (1.00%)
Total other adjustments, Percent (6.70%) (14.30%) (8.70%) (9.60%)
Effective tax rate, Percent 14.30% 6.70% 13.00% 12.30%