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Noncontrolling Interests (Notes)
 12 Months Ended
Dec. 31, 2016
Noncontrolling Interest [Line Items]  
Noncontrolling Interests [Text Block]
Noncontrolling Interests

Included in noncontrolling interests on the Consolidated Balance Sheets are preferred securities of subsidiaries of $58 million as of December 31, 2016 and 2015, consisting of $56 million of 8.061% cumulative preferred securities of Northern Electric plc., a subsidiary of Northern Powergrid, which are redeemable in the event of the revocation of Northern Electric plc.'s electricity distribution license by the Secretary of State, and $2 million of nonredeemable preferred stock of PacifiCorp.
MidAmerican Funding, LLC and Subsidiaries [Domain]  
Noncontrolling Interest [Line Items]  
Other, Net [Text Block]
Other Income and (Expense) - Other, Net

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):
 
2016
 
2015
 
2014
 
 
 
 
 
 
Corporate-owned life insurance income
$
8

 
$
4

 
$
8

Gain on redemption of auction rate securities
5

 
—

 
—

Gains on sales of assets and other investments
3

 
13

 
—

Leveraged leases
—

 
1

 
5

Other, net
3

 
1

 
5

Total
$
19

 
$
19

 
$
18


MidAmerican Funding recognized a $13 million pre-tax gain on the sale of an investment in a generating facility lease in 2015.