v3.26.1
Property, Plant and Equipment, Net - LLC (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Property, Plant, and Equipment [Line Items]    
Property, plant and equipment, net $ 113,039 $ 112,368
MidAmerican Funding, LLC    
Property, Plant, and Equipment [Line Items]    
Property, plant and equipment, net 24,369 24,065
Other assets | MidAmerican Funding, LLC    
Property, Plant, and Equipment [Line Items]    
Property, plant and equipment, net $ 9 $ 9