v3.26.1
Income Taxes - LLC - Reconciliation of Effective Income Tax Rate (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Amount        
U.S. federal statutory income tax rate $ 163 $ 115 $ 347 $ 315
State and local income taxes, net of federal income tax effect 11 18 29 32
Energy-related tax credits (415) (390) (979) (950)
Effects of ratemaking (30) (20) (49) (45)
Total $ (333) $ (357) $ (763) $ (756)
Percent        
U.S. federal statutory income tax rate 21.00% 21.00% 21.00% 21.00%
State and local income taxes, net of federal income tax 1.40% 3.30% 1.70% 2.20%
Energy-related tax credits (53.50%) (71.50%) (59.20%) (63.40%)
Effects of ratemaking (3.70%) (3.70%) (2.90%) (3.00%)
Effective income tax rate (42.90%) (65.60%) (46.10%) (50.50%)
MidAmerican Funding, LLC        
Amount        
U.S. federal statutory income tax rate $ 14 $ 13 $ 20 $ 11
State and local income taxes, net of federal income tax effect (2) (1) (3) (1)
Energy-related tax credits (205) (191) (427) (427)
Effects of ratemaking (1) 0 (1) 1
Other 1 (2) 0 (1)
Total $ (193) $ (181) $ (411) $ (417)
Percent        
U.S. federal statutory income tax rate 21.00% 21.00% 21.00% 21.00%
State and local income taxes, net of federal income tax (3.00%) (1.60%) (3.20%) (1.90%)
Energy-related tax credits (305.90%) (309.70%) (454.10%) (790.70%)
Effects of ratemaking (0.50%) 0.00% (1.10%) 0.90%
Other 0.50% (1.20%) 0.00% (0.90%)
Effective income tax rate (287.90%) (291.50%) (437.40%) (771.60%)