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Other Income (Expense) (Tables)
 12 Months Ended
Dec. 31, 2023
MEC  
Component of Other Income (Expense), Nonoperating [Line Items]  
Schedule of Other Nonoperating Income (Expense)
Other, net, as shown on the Statements of Operations, includes the following other income (expense) items for the years ended December 31 (in millions):
202320222021
Corporate-owned life insurance income (loss)
$23 $(16)$21 
Non-service cost components of postretirement employee benefit plans8 9 26 
Interest income and other, net5 7 6 
Total$36 $— $53 
MidAmerican Funding, LLC  
Component of Other Income (Expense), Nonoperating [Line Items]  
Schedule of Other Nonoperating Income (Expense)
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):
202320222021
Corporate-owned life insurance income (loss)$23 $(16)$21 
Gains on sales of assets and other investments12 — — 
Non-service cost components of postretirement employee benefit plans8 9 26 
Interest income and other, net5 7 7 
Total$48 $— $54