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Other Income (Expense) (Tables)
 12 Months Ended
Dec. 31, 2021
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):
202120202019
Non-service cost components of postretirement employee benefit plans$26 $24 $17 
Corporate-owned life insurance income21 16 24 
Gains on disposition of assets— 6 — 
Interest income and other, net6 6 9 
Total$53 $52 $50 
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):
202120202019
Non-service cost components of postretirement employee benefit plans$26 $24 $17 
Corporate-owned life insurance income21 16 24 
Gains on disposition of assets— 6 — 
Interest income and other, net7 6 11 
Total$54 $52 $52