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Other, Net Other, Net (Tables)
 12 Months Ended
Dec. 31, 2015
MidAmerican Energy Company [Member]  
Component of Other Income (Expense), Nonoperating [Line Items]  
Schedule of Other Nonoperating Income (Expense) [Table 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):
 
2015
 
2014
 
2013
 
 
 
 
 
 
Corporate-owned life insurance income
$
4

 
$
8

 
$
15

Gains on sales of assets and other investments
—

 
—

 
1

Other, net
1

 
2

 
—

Total
$
5

 
$
10

 
$
16