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Revenue from Contract with Customer (Tables)
 12 Months Ended
Dec. 31, 2021
Disaggregation of Revenue [Line Items]  
Disaggregation of Revenue
The following table summarizes the Company's energy products and services Customer 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, for the years ended December 31 (in millions):
2021
PacifiCorpMidAmerican FundingNV EnergyNorthern PowergridBHE Pipeline GroupBHE TransmissionBHE Renewables
BHE and
Other(1)
Total
Customer Revenue:
Regulated:
Retail Electric$4,847 $2,128 $2,828 $— $— $— $— $(2)$9,801 
Retail Gas— 859 115 — — — — — 974 
Wholesale157 454 62 — 57 — — (3)727 
Transmission and
   distribution		143 58 74 1,023 — 702 — — 2,000 
Interstate pipeline— — — — 2,404 — — (131)2,273 
Other108 — 1 — (1)— — 1 109 
Total Regulated5,255 3,499 3,080 1,023 2,460 702 — (135)15,884 
Nonregulated— 15 3 43 956 35 796 576 2,424 
Total Customer Revenue5,255 3,514 3,083 1,066 3,416 737 796 441 18,308 
Other revenue41 33 24 122 128 (6)185 100 627 
Total$5,296 $3,547 $3,107 $1,188 $3,544 $731 $981 $541 $18,935 
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 revenue98 24 30 109 30 — 119 65 475 
Total$5,341 $2,728 $2,854 $1,022 $1,578 $659 $936 $438 $15,556 
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 revenue82 23 30 101 9 — 188 101 534 
Total$5,068 $2,927 $3,037 $1,013 $1,131 $707 $932 $556 $15,371 
(1)The BHE and Other reportable segment represents amounts related principally to other entities, including MidAmerican Energy Services, LLC, corporate functions and intersegment eliminations.
The following table summarizes the Company's real estate services Customer Revenue by line of business for the years ended December 31 (in millions):
HomeServices
202120202019
Customer Revenue:
Brokerage$5,498 $4,520 $4,028 
Franchise85 76 68 
Total Customer Revenue5,583 4,596 4,096 
Mortgage and other revenue632 800 377 
Total$6,215 $5,396 $4,473 
Schedule of Performance Obligation
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, 2021, by reportable segment (in millions):
Performance obligations expected to be satisfied
Less than 12 monthsMore than 12 monthsTotal
BHE Pipeline Group$2,607 $21,038 $23,645 
PAC  
Disaggregation of Revenue [Line Items]  
Disaggregation of Revenue
The following table summarizes PacifiCorp's Customer Revenue by line of business, with further disaggregation of retail by customer class, for the years ended December 31 (in millions):
202120202019
Customer Revenue:
Retail:
Residential$1,914 $1,910 $1,783 
Commercial1,559 1,578 1,522 
Industrial1,125 1,185 1,176 
Other retail249 259 230 
Total retail4,847 4,932 4,711 
Wholesale157 107 99 
Transmission143 96 98 
Other Customer Revenue108 108 78 
Total Customer Revenue5,255 5,243 4,986 
Other revenue41 98 82 
Total operating revenue$5,296 $5,341 $5,068 
MEC  
Disaggregation of Revenue [Line Items]  
Disaggregation of Revenue 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, 2021
ElectricNatural GasOtherTotal
Customer Revenue:
Retail:
Residential$718 $564 $— $1,282 
Commercial327 223 — 550 
Industrial934 30 — 964 
Natural gas transportation services— 39 — 39 
Other retail149 3 — 152 
Total retail2,128 859 — 2,987 
Wholesale312 142 — 454 
Multi-value transmission projects58 — — 58 
Other Customer Revenue— — 15 15 
Total Customer Revenue2,498 1,001 15 3,514 
Other revenue31 2 — 33 
Total operating revenue$2,529 $1,003 $15 $3,547 
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 
NPC  
Disaggregation of Revenue [Line Items]  
Disaggregation of Revenue
The following table summarizes Nevada Power's Customer Revenue by customer class for the years ended December 31 (in millions):
202120202019
Customer Revenue:
Retail:
Residential$1,207 $1,145 $1,141 
Commercial414 384 441 
Industrial386 345 433 
Other14 12 20 
Total fully bundled2,021 1,886 2,035 
Distribution only service22 24 31 
Total retail2,043 1,910 2,066 
Wholesale, transmission and other74 62 57 
Total Customer Revenue2,117 1,972 2,123 
Other revenue22 26 25 
Total revenue$2,139 $1,998 $2,148 
SPPC  
Disaggregation of Revenue [Line Items]  
Disaggregation of Revenue
The following table summarizes Sierra Pacific's Customer Revenue by customer class, including a reconciliation to Sierra Pacific's reportable segment information included in Note 18, for the years ended December 31 (in millions):
202120202019
ElectricNatural GasTotalElectricNatural GasTotalElectricNatural GasTotal
Customer Revenue:
Retail:
Residential$307 $76 $383 $273 $76 $349 $268 $76 $344 
Commercial267 29 296 233 29 262 245 30 275 
Industrial202 10 212 170 9 179 186 10 196 
Other5 — 5 5 — 5 6 1 7 
Total fully bundled781 115 896 681 114 795 705 117 822 
Distribution only service3 — 3 4 — 4 4 — 4 
Total retail784 115 899 685 114 799 709 117 826 
Wholesale, transmission and other62 — 62 50 — 50 57 — 57 
Total Customer Revenue846 115 961 735 114 849 766 117 883 
Other revenue2 2 4 3 2 5 4 2 6 
Total revenue$848 $117 $965 $738 $116 $854 $770 $119 $889 
EEGH  
Disaggregation of Revenue [Line Items]  
Disaggregation of Revenue
The following table summarizes Eastern Energy Gas' Customer Revenue by regulated and nonregulated, with further disaggregation of regulated by line of business, for the years ended December 31 (in millions):

202120202019
Customer Revenue:
Regulated:
Gas transportation and storage$1,044 $1,242 $1,300 
Wholesale57 43 9 
Other(2)4 7 
Total regulated1,099 1,289 1,316 
Nonregulated767 798 849 
Total Customer Revenue1,866 2,087 2,165 
Other revenue4 3 4 
Total operating revenue$1,870 $2,090 $2,169 
Schedule of Performance Obligation
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, 2021 (in millions):

Performance obligations expected to be satisfied
Less than 12 monthsMore than 12 monthsTotal
Eastern Energy Gas$1,594 $16,126 $17,720