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Other, Net (Notes)
 12 Months Ended
Dec. 31, 2020
MidAmerican Energy Company [Member]  
Component of Other Income (Expense), Nonoperating [Line Items]  
Other, Net [Text Block]
Other, net, as shown on the Statements of Operations, includes the following other income (expense) items for the years ended December 31 (in millions):
202020192018
Non-service cost components of postretirement employee benefit plans$24 $17 $21 
Corporate-owned life insurance income16 24 6 
Gains on disposition of assets6 — — 
Interest income and other, net6 9 3 
Total$52 $50 $30 
MidAmerican Funding, LLC and Subsidiaries [Member]  
Component of Other Income (Expense), Nonoperating [Line Items]  
Other, Net [Text Block]
Other, net, as shown on the Consolidated Statements of Operations, includes the following other income (expense) items for the years ended December 31 (in millions):
202020192018
Non-service cost components of postretirement employee benefit plans$24 $17 $21 
Corporate-owned life insurance income16 24 6 
Gains on disposition of assets6 — — 
Interest income and other, net6 11 4 
Total$52 $52 $31