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Revenue from Contract with Customer (Notes)
 12 Months Ended
Dec. 31, 2020
Disaggregation of Revenue [Line Items]  
Revenue from Contract with Customer [Text Block] Revenue from Contracts with Customers
Energy Products and Services

The following table summarizes the Company's energy products and services revenue by regulated energy and nonregulated energy, with further disaggregation of regulated energy by line of business, including a reconciliation to the Company's reportable segment information included in Note 22 (in millions):
For the Year Ended December 31, 2020
PacifiCorpMidAmerican FundingNV EnergyNorthern PowergridBHE Pipeline GroupBHE TransmissionBHE Renewables
BHE and
Other(1)
Total
Customer Revenue:
Regulated:
Retail Electric$4,932 $1,924 $2,566 $— $— $— $— $(1)$9,421 
Retail Gas— 505 114 — — — — — 619 
Wholesale107 199 45 — 17 — — (2)366 
Transmission and
distribution		96 60 95 887 — 641 — — 1,779 
Interstate pipeline— — — — 1,397 — — (139)1,258 
Other108 — 2 — — — — — 110 
Total Regulated5,243 2,688 2,822 887 1,414 641 — (142)13,553 
Nonregulated— 16 2 26 134 18 817 515 1,528 
Total Customer Revenue5,243 2,704 2,824 913 1,548 659 817 373 15,081 
Other revenue(1)
98 24 30 109 30 — 119 65 475 
Total$5,341 $2,728 $2,854 $1,022 $1,578 $659 $936 $438 $15,556 
For the Year Ended December 31, 2019
PacifiCorpMidAmerican FundingNV EnergyNorthern PowergridBHE Pipeline GroupBHE TransmissionBHE Renewables
BHE and
Other(1)
Total
Customer Revenue:
Regulated:
Retail Electric$4,789 $1,938 $2,740 $— $— $— $— $(2)$9,465 
Retail Gas— 570 116 — — — — — 686 
Wholesale99 309 51 — — — — (2)457 
Transmission and
distribution		98 57 98 876 — 690 — — 1,819 
Interstate pipeline— — — — 1,122 — — (118)1,004 
Other— — 2 — — — — — 2 
Total Regulated4,986 2,874 3,007 876 1,122 690 — (122)13,433 
Nonregulated— 30 — 36 — 17 744 577 1,404 
Total Customer Revenue4,986 2,904 3,007 912 1,122 707 744 455 14,837 
Other revenue(1)
82 23 30 101 9 — 188 101 534 
Total$5,068 $2,927 $3,037 $1,013 $1,131 $707 $932 $556 $15,371 
For the Year Ended December 31, 2018
PacifiCorpMidAmerican FundingNV EnergyNorthern PowergridBHE Pipeline GroupBHE TransmissionBHE Renewables
BHE and
Other(1)
Total
Customer Revenue:
Regulated:
Retail Electric$4,732 $1,915 $2,773 $— $— $— $— $(1)$9,419 
Retail Gas— 636 101 — — — — — 737 
Wholesale55 411 39 — — — — (4)501 
Transmission and
distribution		103 56 96 892 — 700 — (1)1,846 
Interstate pipeline— — — — 1,232 — — (125)1,107 
Other— — 2 — — — — — 2 
Total Regulated4,890 3,018 3,011 892 1,232 700 — (131)13,612 
Nonregulated— 14 — 39 — 10 673 624 1,360 
Total Customer Revenue4,890 3,032 3,011 931 1,232 710 673 493 14,972 
Other revenue(1)
136 21 28 89 (29)— 235 121 601 
Total$5,026 $3,053 $3,039 $1,020 $1,203 $710 $908 $614 $15,573 
(1)Includes net payments to counterparties for the financial settlement of certain derivative contracts at BHE Pipeline Group.

Real Estate Services

The following table summarizes the Company's real estate services revenue by line of business (in millions):
HomeServices
Years Ended December 31,
202020192018
Customer Revenue:
Brokerage$4,520 $4,028 $3,882 
Franchise76 68 67 
Total Customer Revenue4,596 4,096 3,949 
Mortgage and other revenue800 377 265 
Total$5,396 $4,473 $4,214 

Remaining Performance Obligations

The following table summarizes the Company's revenue it expects to recognize in future periods related to significant unsatisfied remaining performance obligations for fixed contracts with expected durations in excess of one year as of December 31, 2020, by reportable segment (in millions):
Performance obligations expected to be satisfied
Less than 12 monthsMore than 12 monthsTotal
BHE Pipeline Group$2,563 $22,088 $24,651 
BHE Transmission647 — 647 
Total$3,210 $22,088 $25,298 
MidAmerican Energy Company [Member]  
Disaggregation of Revenue [Line Items]  
Revenue from Contract with Customer [Text Block]
MidAmerican Energy uses a single five-step model to identify and recognize revenue from contracts with customers ("Customer Revenue") upon transfer of control of promised goods or services to customers in an amount that reflects the consideration to which it expects to be entitled in exchange for those goods or services. The following table summarizes MidAmerican Energy's revenue by line of business and customer class, including a reconciliation to MidAmerican Energy's reportable segment information included in Note 18, (in millions):
For the Year Ended December 31, 2020
ElectricNatural GasOtherTotal
Customer Revenue:
Retail:
Residential$685 $342 $— $1,027 
Commercial304 111 — 415 
Industrial804 14 — 818 
Natural gas transportation services— 36 — 36 
Other retail131 2 — 133 
Total retail1,924 505 — 2,429 
Wholesale133 66 — 199 
Multi-value transmission projects60 — — 60 
Other Customer Revenue— — 8 8 
Total Customer Revenue2,117 571 8 2,696 
Other revenue22 2 — 24 
Total operating revenue$2,139 $573 $8 $2,720 
For the Year Ended December 31, 2019
ElectricNatural GasOtherTotal
Customer Revenue:
Retail:
Residential$672 $383 $— $1,055 
Commercial322 132 — 454 
Industrial799 17 — 816 
Natural gas transportation services— 38 — 38 
Other retail145 — — 145 
Total retail1,938 570 — 2,508 
Wholesale221 88 — 309 
Multi-value transmission projects57 — — 57 
Other Customer Revenue— — 28 28 
Total Customer Revenue2,216 658 28 2,902 
Other revenue21 2 — 23 
Total operating revenue$2,237 $660 $28 $2,925 
For the Year Ended December 31, 2018
ElectricNatural GasOtherTotal
Customer Revenue:
Retail:
Residential$696 $421 $— $1,117 
Commercial314 153 — 467 
Industrial758 22 — 780 
Natural gas transportation services— 39 — 39 
Other retail147 1 — 148 
Total retail1,915 636 — 2,551 
Wholesale295 116 — 411 
Multi-value transmission projects55 — — 55 
Other Customer Revenue— — 11 11 
Total Customer Revenue2,265 752 11 3,028 
Other revenue18 2 1 21 
Total operating revenue$2,283 $754 $12 $3,049 
MidAmerican Funding, LLC and Subsidiaries [Member]  
Disaggregation of Revenue [Line Items]  
Revenue from Contract with Customer [Text Block] Refer to Note 14 of MidAmerican Energy's Notes to Financial Statements. Additionally, MidAmerican Funding had $8 million, $2 million and $4 million of other revenue from contracts with customers for the year ended December 31, 2020, 2019 and 2018, respectively.
MidAmerican Energy Company [Member]  
Disaggregation of Revenue [Line Items]  
Revenue from Contract with Customer [Text Block] Revenue from Contracts with Customers
The following table summarizes PacifiCorp's revenue by regulated energy, with further disaggregation of regulated energy by customer class, for the years ended December 31 (in millions):
202020192018
Customer Revenue:
Retail:
Residential$1,910 $1,783 $1,737 
Commercial1,578 1,522 1,513 
Industrial1,185 1,176 1,172 
Other retail259 230 234 
Total retail4,932 4,711 4,656 
Wholesale107 99 55 
Transmission96 98 103 
Other Customer Revenue108 78 76 
Total Customer Revenue5,243 4,986 4,890 
Other revenue98 82 136 
Total operating revenue$5,341 $5,068 $5,026 
Nevada Power Company [Member]  
Disaggregation of Revenue [Line Items]  
Revenue from Contract with Customer [Text Block] Revenues from Contracts with Customers
The following table summarizes Nevada Power's revenue from contracts with customers ("Customer Revenue") by customer class for the years ended December 31 (in millions):
202020192018
Customer Revenue:
Retail:
Residential$1,145 $1,141 $1,195 
Commercial384 441 433 
Industrial345 433 425 
Other12 20 24 
Total fully bundled1,886 2,035 2,077 
Distribution only service24 31 30 
Total retail1,910 2,066 2,107 
Wholesale, transmission and other62 57 53 
Total Customer Revenue1,972 2,123 2,160 
Other revenue26 25 24 
Total revenue$1,998 $2,148 $2,184 
Sierra Pacific Power Company [Member]  
Disaggregation of Revenue [Line Items]  
Revenue from Contract with Customer [Text Block] Revenues from Contracts with Customers
The following table summarizes Sierra Pacific's revenue from contracts with customers ("Customer Revenue") by customer class, including a reconciliation to Sierra Pacific's reportable segment information included in Note 17, for the years ended December 31 (in millions):
202020192018
ElectricNatural GasTotalElectricNatural GasTotalElectricNatural GasTotal
Customer Revenue:
Retail:
Residential$273 $76 $349 $268 $76 $344 $267 $67 $334 
Commercial233 29 262 245 30 275 246 25 271 
Industrial170 9 179 186 10 196 177 8 185 
Other5 — 5 6 1 7 6 1 7 
Total fully bundled681 114 795 705 117 822 696 101 797 
Distribution only service4 — 4 4 — 4 4 — 4 
Total retail685 114 799 709 117 826 700 101 801 
Wholesale, transmission and other50 — 50 57 — 57 48 — 48 
Total Customer Revenue735 114 849 766 117 883 748 101 849 
Other revenue3 2 5 4 2 6 4 2 6 
Total revenue$738 $116 $854 $770 $119 $889 $752 $103 $855 
Eastern Energy Gas Holdings, LLC [Member]  
Disaggregation of Revenue [Line Items]  
Revenue from Contract with Customer [Text Block] Revenue from Contracts with Customers
Eastern Energy Gas uses a single five-step model to identify and recognize revenue from contracts with customers upon transfer of control of promised goods or services in an amount that reflects the consideration to which Eastern Energy Gas expects to be entitled in exchange for those goods or services. The following table summarizes Eastern Energy Gas' energy products and services revenue by regulated and nonregulated for the years ended December 31 (in millions):

202020192018
Customer Revenue:
Regulated:
Gas transportation and storage$1,242 $1,300 $1,249 
Wholesale43 9 25 
Other4 7 19 
Total regulated1,289 1,316 1,293 
Nonregulated798 849 709 
Total Customer Revenue2,087 2,165 2,002 
Other revenue3 4 (6)
Total operating revenue$2,090 $2,169 $1,996 

Remaining Performance Obligations

The following table summarizes Eastern Energy Gas' revenue it expects to recognize in future periods related to significant unsatisfied remaining performance obligations for fixed contracts with expected durations in excess of one year as of December 31, 2020 (in millions):

Performance obligations expected to be satisfied
Less than 12 monthsMore than 12 monthsTotal
Eastern Energy Gas$1,575 $17,073 $18,648