Jointly Owned Utility Facilities (Tables)

12 Months Ended

Dec. 31, 2017

Jointly Owned Utility Plant Interests [Line Items]

Jointly Owned Utility Facilities [Table Text Block]

The amounts shown in the table below represent the Company's share in each jointly owned facility included in property, plant and equipment, net as of December 31, 2017 (dollars in millions):



					Accumulated		Construction
	Company		Facility In		Depreciation and		Work-in-
	Share		Service		Amortization		Progress
PacifiCorp:
Jim Bridger Nos. 1-4	67	%	$	1,442	$	616	$	12
Hunter No. 1	94		474		172		7
Hunter No. 2	60		297		106		1
Wyodak	80		469		216		1
Colstrip Nos. 3 and 4	10		247		131		4
Hermiston	50		180		81		1
Craig Nos. 1 and 2	19		365		231		3
Hayden No. 1	25		74		34		—
Hayden No. 2	13		43		21		—
Foote Creek	79		40		26		—
Transmission and distribution facilities	Various		794		238		67
Total PacifiCorp			4,425		1,872		96
MidAmerican Energy:
Louisa No. 1	88	%	807		432		8
Quad Cities Nos. 1 and 2⁽¹⁾	25		698		387		20
Walter Scott, Jr. No. 3	79		617		316		8
Walter Scott, Jr. No. 4⁽²⁾	60		456		112		1
George Neal No. 4	41		307		159		1
Ottumwa No. 1	52		567		206		40
George Neal No. 3	72		425		183		7
Transmission facilities	Various		249		87		1
Total MidAmerican Energy			4,126		1,882		86
NV Energy:
Navajo	11	%	220		152		—
Valmy	50		388		233		1
Transmission facilities	Various		206		45		—
Total NV Energy			814		430		1
BHE Pipeline Group - common facilities	Various		286		169		—
Total			$	9,651	$	4,353	$	183


(1)	Includes amounts related to nuclear fuel.


(2)	Facility in-service and accumulated depreciation and amortization amounts are net of credits applied under Iowa revenue sharing arrangements totaling $319 million and $81 million, respectively.

PacifiCorp [Member]

Jointly Owned Utility Plant Interests [Line Items]

Jointly Owned Utility Facilities [Table Text Block]

The amounts shown in the table below represent PacifiCorp's share in each jointly owned facility included in property, plant and equipment, net as of December 31, 2017 (dollars in millions):



			Facility		Accumulated		Construction
	PacifiCorp		in		Depreciation and		Work-in-
	Share		Service		Amortization		Progress

Jim Bridger Nos. 1 - 4	67	%	$	1,442	$	616	$	12
Hunter No. 1	94		474		172		7
Hunter No. 2	60		297		106		1
Wyodak	80		469		216		1
Colstrip Nos. 3 and 4	10		247		131		4
Hermiston	50		180		81		1
Craig Nos. 1 and 2	19		365		231		3
Hayden No. 1	25		74		34		—
Hayden No. 2	13		43		21		—
Foote Creek	79		40		26		—
Transmission and distribution facilities	Various		794		238		67
Total			$	4,425	$	1,872	$	96

MidAmerican Energy Company [Member]

Jointly Owned Utility Plant Interests [Line Items]

Jointly Owned Utility Facilities [Table Text Block]

The amounts shown in the table below represent MidAmerican Energy's share in each jointly owned facility included in property, plant and equipment, net as of December 31, 2017 (dollars in millions):



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

Louisa Unit No. 1	88	%	$	807	$	432	$	8
Quad Cities Unit Nos. 1 & 2⁽¹⁾	25		698		387		20
Walter Scott, Jr. Unit No. 3	79		617		316		8
Walter Scott, Jr. Unit No. 4⁽²⁾	60		456		112		1
George Neal Unit No. 4	41		307		159		1
Ottumwa Unit No. 1	52		567		206		40
George Neal Unit No. 3	72		425		183		7
Transmission facilities	Various		249		87		1
Total			$	4,126	$	1,882	$	86


(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 $81 million, respectively.

Nevada Power Company [Member]

Jointly Owned Utility Plant Interests [Line Items]

Jointly Owned Utility Facilities [Table Text Block]

The amounts shown in the table below represent Nevada Power's share in each jointly owned facility included in property, plant and equipment, net as of December 31, 2017 (dollars in millions):



	Nevada						Construction
	Power's		Utility		Accumulated		Work-in-
	Share		Plant		Depreciation		Progress

Navajo Generating Station	11	%	$	220	$	152	$	—
ON Line Transmission Line	24		146		16		—
Other transmission facilities	Various		48		26		—
Total			$	414	$	194	$	—

Sierra Pacific Power Company [Member]

Jointly Owned Utility Plant Interests [Line Items]

Jointly Owned Utility Facilities [Table Text Block]

The amounts shown in the table below represent Sierra Pacific's share in each jointly owned facility included in property, plant and equipment, net as of December 31, 2017 (dollars in millions):



	Sierra						Construction
	Pacific's		Utility		Accumulated		Work-in-
	Share		Plant		Depreciation		Progress

Valmy Generating Station	50	%	$	388	$	233	$	1
ON Line Transmission Line	1		8		1		—
Valmy Transmission	50		4		2		—
Total			$	400	$	236	$	1