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Segment Information
 6 Months Ended
Jun. 30, 2023
Segment Reporting Information [Line Items]  
Segment Information Segment Information
The Company's reportable segments with foreign operations include Northern Powergrid, whose business is principally in the United Kingdom, and BHE Transmission, whose business includes operations in Canada. Intersegment eliminations and adjustments, including the allocation of goodwill, have been made. Effective January 1, 2023, the Company's unregulated retail energy services business was transferred to a subsidiary of BHE Renewables. Prior period amounts, which were previously reported in BHE and Other, have been changed to reflect this activity in BHE Renewables. Information related to the Company's reportable segments is shown below (in millions):
 Three-Month PeriodsSix-Month Periods
Ended June 30,Ended June 30,
 2023202220232022
Operating revenue:
PacifiCorp$1,327 $1,314 $2,811 $2,611 
MidAmerican Funding759 897 1,679 1,902 
NV Energy1,119 899 2,118 1,592 
Northern Powergrid307 345 661 660 
BHE Pipeline Group818 856 1,991 1,891 
BHE Transmission192 183 397 366 
BHE Renewables437 478 830 814 
HomeServices1,296 1,672 2,171 2,879 
BHE and Other(1)
(26)(32)(83)(73)
Total operating revenue$6,229 $6,612 $12,575 $12,642 
Depreciation and amortization:
PacifiCorp$279 $279 $558 $559 
MidAmerican Funding226 277 460 527 
NV Energy153 139 305 279 
Northern Powergrid85 100 170 180 
BHE Pipeline Group95 125 267 256 
BHE Transmission65 60 126 118 
BHE Renewables67 65 133 131 
HomeServices12 14 25 29 
BHE and Other(1)
— — 1 2 
Total depreciation and amortization$982 $1,059 $2,045 $2,081 
 Three-Month PeriodsSix-Month Periods
Ended June 30,Ended June 30,
 2023202220232022
Operating income:  
PacifiCorp$131 $158 $(36)$374 
MidAmerican Funding118 90 206 190 
NV Energy117 140 174 202 
Northern Powergrid121 110 267 269 
BHE Pipeline Group368 352 952 890 
BHE Transmission76 84 164 167 
BHE Renewables89 155 20 209 
HomeServices46 117 1 145 
BHE and Other(1)
(20)1 (35)(3)
Total operating income1,046 1,207 1,713 2,443 
Interest expense(599)(550)(1,185)(1,082)
Capitalized interest33 18 57 35 
Allowance for equity funds61 42 110 80 
Interest and dividend income127 30 213 53 
Gains on marketable securities, net303 2,528 1,002 1,271 
Other, net78 (26)118 (21)
Total income (loss) before income tax expense (benefit) and equity income (loss)$1,049 $3,249 $2,028 $2,779 
Interest expense:
PacifiCorp$134 $107 $258 $213 
MidAmerican Funding85 83 169 165 
NV Energy64 52 127 103 
Northern Powergrid30 34 60 66 
BHE Pipeline Group39 36 78 73 
BHE Transmission38 38 75 76 
BHE Renewables43 45 88 87 
HomeServices4 2 8 3 
BHE and Other(1)
162 153 322 296 
Total interest expense$599 $550 $1,185 $1,082 
Earnings on common shares:
PacifiCorp$107 $83 $(13)$213 
MidAmerican Funding233 204 482 445 
NV Energy90 93 124 122 
Northern Powergrid96 71 107 182 
BHE Pipeline Group187 199 556 521 
BHE Transmission58 62 122 124 
BHE Renewables206 264 285 409 
HomeServices34 84 — 105 
BHE and Other(1)
55 1,824 384 618 
Total earnings on common shares$1,066 $2,884 $2,047 $2,739 
 As of
 June 30,December 31,
20232022
Assets:
PacifiCorp$31,700 $30,559 
MidAmerican Funding26,241 26,077 
NV Energy17,495 16,676 
Northern Powergrid9,531 9,005 
BHE Pipeline Group20,937 21,005 
BHE Transmission9,599 9,334 
BHE Renewables11,295 12,632 
HomeServices3,795 3,436 
BHE and Other(1)
7,158 5,116 
Total assets$137,751 $133,840 

(1)The differences between the reportable segment amounts and the consolidated amounts, described as BHE and Other, relate principally to other corporate entities, corporate functions and intersegment eliminations.
 Three-Month PeriodsSix-Month Periods
Ended June 30,Ended June 30,
 2023202220232022
Operating revenue by country:
U.S.$5,749 $6,087 $11,564 $11,621 
United Kingdom295 345 628 660 
Canada173 180 350 361 
Australia12 — 33 — 
Total operating revenue by country$6,229 $6,612 $12,575 $12,642 
Income (loss) before income tax expense (benefit) and equity income (loss) by country:
U.S.$914 $3,117 $1,733 $2,463 
United Kingdom93 87 206 226 
Canada44 46 87 92 
Australia(3)1 2 1 
Other1 (2)— (3)
Total income (loss) before income tax expense (benefit) and equity income (loss) by country$1,049 $3,249 $2,028 $2,779 

The following table shows the change in the carrying amount of goodwill by reportable segment for the six-month period ended June 30, 2023 (in millions):
BHE Pipeline Group
PacifiCorpMidAmerican FundingNV EnergyNorthern PowergridBHE TransmissionBHE RenewablesHomeServices
Total
 
December 31, 2022$1,129 $2,102 $2,369 $917 $1,814 $1,461 $95 $1,602 $11,489 
Acquisitions— — — — — — — 1 1 
Foreign currency translation
— — — 32 — 31 — — 63 
Other— — — — — — — (7)(7)
June 30, 2023$1,129 $2,102 $2,369 $949 $1,814 $1,492 $95 $1,596 $11,546 
MEC  
Segment Reporting Information [Line Items]  
Segment Information 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 natural gas sales are established separately by regulatory agencies; therefore, management also reviews each segment separately to make decisions regarding allocation of resources and 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 PeriodsSix-Month Periods
 Ended June 30,Ended June 30,
2023202220232022
Operating revenue:
Regulated electric$661 $725 $1,252 $1,333 
Regulated natural gas97 171 423 567 
Other1 1 4 2 
Total operating revenue$759 $897 $1,679 $1,902 
Operating income:
Regulated electric$120 $87 $170 $138 
Regulated natural gas(2)3 36 52 
Total operating income118 90 206 190 
Interest expense(81)(78)(161)(156)
Allowance for borrowed funds4 5 8 9 
Allowance for equity funds13 14 24 29 
Other, net15 (12)31 (15)
Total income before income tax expense (benefit)$69 $19 $108 $57 

As of
June 30,
2023		December 31,
2022
Assets:
Regulated electric$22,425 $22,092 
Regulated natural gas1,717 1,885 
Other1 1 
Total assets$24,143 $23,978 
MidAmerican Funding, LLC  
Segment Reporting Information [Line Items]  
Segment Information 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 natural gas sales are established separately by regulatory agencies; therefore, management also reviews each segment separately to make decisions regarding allocation of resources and 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 PeriodsSix-Month Periods
Ended June 30,Ended June 30,
2023202220232022
Operating revenue:
Regulated electric$661 $725 $1,252 $1,333 
Regulated natural gas97 171 423 567 
Other1 1 4 2 
Total operating revenue$759 $897 $1,679 $1,902 
Operating income:
Regulated electric$120 $87 $170 $138 
Regulated natural gas(2)3 36 52 
Total operating income118 90 206 190 
Interest expense(85)(83)(169)(165)
Allowance for borrowed funds4 5 8 9 
Allowance for equity funds13 14 24 29 
Other, net15 (10)43 (14)
Total income before income tax expense (benefit)$65 $16 $112 $49 
As of
June 30,
2023		December 31,
2022
Assets(1):
Regulated electric$23,616 $23,283 
Regulated natural gas1,796 1,963 
Other13 8 
Total assets$25,425 $25,254 
(1)Assets by reportable segment reflect the assignment of goodwill to applicable reporting units.
SPPC  
Segment Reporting Information [Line Items]  
Segment Information 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 PeriodsSix-Month Periods
Ended June 30,Ended June 30,
2023202220232022
Operating revenue:
Regulated electric$293 $230 $597 $457 
Regulated natural gas44 28 140 80 
Total operating revenue$337 $258 $737 $537 
Operating income:
Regulated electric$23 $19 $48 $49 
Regulated natural gas3 4 13 12 
Total operating income26 23 61 61 
Interest expense(15)(14)(31)(27)
Allowance for borrowed funds3 — 5 1 
Allowance for equity funds3 2 5 4 
Interest and dividend income5 4 12 7 
Other, net1 — 2 2 
Total income before income tax expense (benefit)$23 $15 $54 $48 

As of
June 30,December 31,
20232022
Assets:
Regulated electric$4,182 $4,224 
Regulated natural gas444 441 
Other(1)
58 67 
Total assets$4,684 $4,732 

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