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Segment Information
 3 Months Ended
Mar. 31, 2020
Segment Reporting Information [Line Items]  
Segment Reporting Disclosure [Text Block]
Segment Information

The Company's reportable segments with foreign operations include Northern Powergrid, whose business is principally in the United Kingdom, BHE Transmission, whose business includes operations in Canada, and BHE Renewables, whose business includes operations in the Philippines. Intersegment eliminations and adjustments, including the allocation of goodwill, have been made. Information related to the Company's reportable segments is shown below (in millions):
 
Three-Month Periods
 
Ended March 31,
 
2020
 
2019
Operating revenue:
 
 
 
PacifiCorp
$
1,206

 
$
1,259

MidAmerican Funding
686

 
842

NV Energy
622

 
614

Northern Powergrid
266

 
263

BHE Pipeline Group
401

 
371

BHE Transmission
172

 
168

BHE Renewables
178

 
167

HomeServices
893

 
785

BHE and Other(1)
103

 
141

Total operating revenue
$
4,527

 
$
4,610

Depreciation and amortization:
 
 
 
PacifiCorp
$
252

 
$
205

MidAmerican Funding
176

 
177

NV Energy
124

 
120

Northern Powergrid
63

 
63

BHE Pipeline Group
64

 
28

BHE Transmission
60

 
58

BHE Renewables
71

 
70

HomeServices
11

 
13

BHE and Other(1)
—

 
(1
)
Total depreciation and amortization
$
821

 
$
733


 
Three-Month Periods
 
Ended March 31,
 
2020
 
2019
Operating income:
 
 
 
PacifiCorp
$
234

 
$
284

MidAmerican Funding
102

 
116

NV Energy
79

 
84

Northern Powergrid
132

 
129

BHE Pipeline Group
249

 
243

BHE Transmission
76

 
76

BHE Renewables
17

 
18

HomeServices
20

 
(21
)
BHE and Other(1)
10

 
(10
)
Total operating income
919


919

Interest expense
(483
)
 
(477
)
Capitalized interest
17

 
16

Allowance for equity funds
34

 
32

Interest and dividend income
20

 
30

Gains (losses) on marketable securities, net
27

 
(68
)
Other, net
(27
)
 
35

Total income before income tax expense and equity income
$
507


$
487

Interest expense:
 
 
 
PacifiCorp
$
102

 
$
96

MidAmerican Funding
81

 
75

NV Energy
58

 
62

Northern Powergrid
32

 
34

BHE Pipeline Group
14

 
12

BHE Transmission
38

 
39

BHE Renewables
42

 
44

HomeServices
5

 
7

BHE and Other(1)
111

 
108

Total interest expense
$
483


$
477

Operating revenue by country:
 
 
 
United States
$
4,089

 
$
4,177

United Kingdom
266

 
263

Canada
171

 
168

Philippines and other
1

 
2

Total operating revenue by country
$
4,527

 
$
4,610

Income before income tax benefit and equity loss by country:
 
 
 
United States
$
354

 
$
336

United Kingdom
109

 
103

Canada
40

 
40

Philippines and other
4

 
8

Total income before income tax benefit and equity loss by country
$
507

 
$
487


 
As of
 
March 31,
 
December 31,
 
2020
 
2019
Assets:
 
 
 
PacifiCorp
$
24,953

 
$
24,861

MidAmerican Funding
22,693

 
22,664

NV Energy
14,283

 
14,128

Northern Powergrid
7,686

 
8,385

BHE Pipeline Group
6,127

 
6,100

BHE Transmission
8,186

 
8,776

BHE Renewables
10,139

 
9,961

HomeServices
4,144

 
3,846

BHE and Other(1)
2,595

 
1,330

Total assets
$
100,806

 
$
100,051


(1)
The differences between the reportable segment amounts and the consolidated amounts, described as BHE and Other, relate principally to other entities, including MidAmerican Energy Services, LLC, corporate functions and intersegment eliminations.

The following table shows the change in the carrying amount of goodwill by reportable segment for the three-month period ended March 31, 2020 (in millions):
 
 
 
 
 
 
 
 
 
BHE Pipeline Group
 
 
 
 
 
 
 
 
 
PacifiCorp
 
MidAmerican Funding
 
NV Energy
 
Northern Powergrid
 
 
BHE Transmission
 
BHE Renewables
 
HomeServices
 
 
 
 
 
 
 
 
 
 
 
Total
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
December 31, 2019
$
1,129

 
$
2,102

 
$
2,369

 
$
978

 
$
73

 
$
1,520

 
$
95

 
$
1,456

 
$
9,722

Foreign currency translation
—

 
—

 
—

 
(44
)
 
—

 
(116
)
 
—

 
—

 
(160
)
March 31, 2020
$
1,129

 
$
2,102

 
$
2,369

 
$
934

 
$
73

 
$
1,404

 
$
95

 
$
1,456

 
$
9,562
MidAmerican Energy Company [Member]  
Segment Reporting Information [Line Items]  
Segment Reporting Disclosure [Text Block]
Segment Information

MidAmerican Energy has identified two reportable segments: regulated electric and regulated natural gas. The regulated electric segment derives most of its revenue from regulated retail sales of electricity to residential, commercial, and industrial customers and from wholesale sales. The regulated natural gas segment derives most of its revenue from regulated retail sales of natural gas to residential, commercial, and industrial customers and also obtains revenue by transporting natural gas owned by others through its distribution system. Pricing for regulated electric and regulated natural gas sales are established separately by regulatory agencies; therefore, management also reviews each segment separately to make decisions regarding allocation of resources and in evaluating performance. Common operating costs, interest income, interest expense and income tax expense are allocated to each segment based on certain factors, which primarily relate to the nature of the cost.

The following tables provide information on a reportable segment basis (in millions):
 
Three-Month Periods
 
Ended March 31,
 
2020
 
2019
Operating revenue:
 
 
 
Regulated electric
$
471

 
$
542

Regulated natural gas
209

 
295

Other
1

 
5

Total operating revenue
$
681

 
$
842

 
 
 
 
Operating income:
 
 
 
Regulated electric
$
59

 
$
66

Regulated natural gas
39

 
48

Other
—

 
1

Total operating income
98

 
115

Interest expense
(76
)
 
(69
)
Allowance for borrowed funds
3

 
6

Allowance for equity funds
8

 
15

Other, net
(5
)
 
20

Income before income tax benefit
$
28

 
$
87


 
As of
 
March 31,
2020
 
December 31,
2019
Assets:
 
 
 
Regulated electric
$
19,184

 
$
19,093

Regulated natural gas
1,407

 
1,468

Other
—

 
3

Total assets
$
20,591

 
$
20,564
MidAmerican Funding, LLC and Subsidiaries [Domain]  
Segment Reporting Information [Line Items]  
Segment Reporting Disclosure [Text Block]
Segment Information

MidAmerican Funding has identified two reportable segments: regulated electric and regulated natural gas. The regulated electric segment derives most of its revenue from regulated retail sales of electricity to residential, commercial, and industrial customers and from wholesale sales. The regulated natural gas segment derives most of its revenue from regulated retail sales of natural gas to residential, commercial, and industrial customers and also obtains revenue by transporting natural gas owned by others through its distribution system. Pricing for regulated electric and regulated natural gas sales are established separately by regulatory agencies; therefore, management also reviews each segment separately to make decisions regarding allocation of resources and in evaluating performance. Common operating costs, interest income, interest expense and income tax expense are allocated to each segment based on certain factors, which primarily relate to the nature of the cost. "Other" in the tables below consists of the financial results and assets of nonregulated operations, MHC and MidAmerican Funding.

The following tables provide information on a reportable segment basis (in millions):
 
Three-Month Periods
 
Ended March 31,
 
2020
 
2019
Operating revenue:
 
 
 
Regulated electric
$
471

 
$
542

Regulated natural gas
209

 
295

Other
6

 
5

Total operating revenue
$
686

 
$
842

 
 
 
 
Operating income:
 
 
 
Regulated electric
$
59

 
$
66

Regulated natural gas
39

 
48

Other
4

 
2

Total operating income
102

 
116

Interest expense
(81
)
 
(75
)
Allowance for borrowed funds
3

 
6

Allowance for equity funds
8

 
15

Other, net
(6
)
 
21

Income before income tax benefit
$
26

 
$
83


 
As of
 
March 31,
2020
 
December 31,
2019
Assets(1):
 
 
 
Regulated electric
$
20,375

 
$
20,284

Regulated natural gas
1,486

 
1,547

Other
5

 
9

Total assets
$
21,866

 
$
21,840

(1)
Assets by reportable segment reflect the assignment of goodwill to applicable reporting units.
Sierra Pacific Power Company [Member]  
Segment Reporting Information [Line Items]  
Segment Reporting Disclosure [Text Block]
Segment Information

Sierra Pacific has identified two reportable operating segments: regulated electric and regulated natural gas. The regulated electric segment derives most of its revenue from regulated retail sales of electricity to residential, commercial, and industrial customers and from wholesale sales. The regulated natural gas segment derives most of its revenue from regulated retail sales of natural gas to residential, commercial, and industrial customers and also obtains revenue by transporting natural gas owned by others through its distribution system. Pricing for regulated electric and regulated natural gas sales are established separately by the PUCN; therefore, management also reviews each segment separately to make decisions regarding allocation of resources and in evaluating performance.

The following tables provide information on a reportable segment basis (in millions):
 
Three-Month Periods
 
Ended March 31,
 
2020
 
2019
Operating revenue:
 
 
 
Regulated electric
$
184

 
$
182

Regulated natural gas
48

 
37

Total operating revenue
$
232

 
$
219

 
 
 
 
Operating income:
 
 
 
Regulated electric
$
33

 
$
29

Regulated natural gas
7

 
8

Total operating income
40

 
37

Interest expense
(14
)
 
(12
)
Allowance for equity funds
1

 
1

Other, net
1

 
2

Income before income tax expense
$
28

 
$
28


 
As of
 
March 31,
 
December 31,
 
2020
 
2019
Assets:
 
 
 
Regulated electric
$
3,332

 
$
3,319

Regulated natural gas
314

 
308

Other(1)
40

 
44

Total assets
$
3,686

 
$
3,671


(1)
Consists principally of cash and cash equivalents not included in either the regulated electric or regulated natural gas segments.