Jointly Owned Utility Facilities (MEC) (Tables) (MidAmerican Energy Company and Subsidiaries [Member])

12 Months Ended

Dec. 31, 2012

MidAmerican Energy Company and Subsidiaries [Member]

Jointly Owned Utility Plant Interests [Line Items]

Schedule of Jointly Owned Utility Plants [Table Text Block]

The amounts shown in the table below represent MidAmerican Energy's share in each jointly owned facility as of December 31, 2012 (dollars in millions):



					Accumulated		Construction
	Company		Plant in		Depreciation and		Work in
	Share		Service		Amortization		Progress

Louisa Unit No. 1	88.0	%	$	738	$	368	$	1
Quad Cities Unit Nos. 1 & 2⁽¹⁾	25.0		595		272		37
Walter Scott, Jr. Unit No. 3	79.1		542		269		1
Walter Scott, Jr. Unit No. 4⁽²⁾	59.7		437		65		1
Ottumwa Unit No. 1	52.0		274		166		88
George Neal Unit No. 3	72.0		181		136		71
George Neal Unit No. 4	40.6		171		143		71
Transmission facilities⁽³⁾	Various		238		75		—
Total			$	3,176	$	1,494	$	270


(1)	Includes amounts related to nuclear fuel.


(2)	Plant in service and accumulated depreciation and amortization amounts are net of credits applied under Iowa revenue sharing arrangements totaling $319 million and $46 million, respectively.


(3)	Includes 345 and 161 kilovolt transmission lines and substations.

- Definition

Tabular disclosure of proportionate interests in jointly owned utility plants. Includes the amount of plants in service, the accumulated provision for depreciation (if available), the amount of plants under construction, and the proportionate share. The amounts presented may be further subdivided to show amounts applicable to plant subcategories (for example, production, transmission, distribution). Includes statements that the amounts represent the utility's share in each joint plant and that it must provide its own financing. Information concerning two or more generating plants on the same site may be combined. States that the utility's share of direct expenses of the joint plants is included in the corresponding operating expenses on its income statement (for example, fuel, maintenance of plant, other operating expense). If the share of direct expenses is charged to purchased power, then disclose the amount so charged and the proportionate amounts charged to specific operating expenses on the records maintained for the joint plants.

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