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Subsidiary Debt (Tables)
 12 Months Ended
Dec. 31, 2020
Debt Instrument [Line Items]  
Subsidiary Debt [Table Text Block]
Senior Debt

BHE senior debt represents unsecured senior obligations of BHE that are redeemable in whole or in part at any time generally with make-whole premiums. BHE senior debt consists of the following, including fair value adjustments and unamortized premiums, discounts and debt issuance costs, as of December 31 (in millions):
Par Value20202019
2.40% Senior Notes, due 2020
— — 349 
2.375% Senior Notes, due 2021
450 448 448 
2.80% Senior Notes, due 2023
400 398 398 
3.75% Senior Notes, due 2023
500 498 498 
3.50% Senior Notes, due 2025
400 398 398 
4.05% Senior Notes, due 2025
1,250 1,246 — 
3.25% Senior Notes, due 2028
600 594 594 
8.48% Senior Notes, due 2028
256 257 259 
3.70% Senior Notes, due 2030
1,100 1,096 — 
1.65% Senior Notes, due 2031
500 497 — 
6.125% Senior Bonds, due 2036
1,670 1,661 1,661 
5.95% Senior Bonds, due 2037
550 548 548 
6.50% Senior Bonds, due 2037
225 223 223 
5.15% Senior Notes, due 2043
750 740 740 
4.50% Senior Notes, due 2045
750 738 738 
3.80% Senior Notes, due 2048
750 738 737 
4.45% Senior Notes, due 2049
1,000 990 990 
4.25% Senior Notes, due 2050
900 889 — 
2.85% Senior Notes, due 2051
1,500 1,488 — 
Total BHE Senior Debt$13,551 $13,447 $8,581 
Reflected as:
Current liabilities$450 $350 
Noncurrent liabilities12,997 8,231 
Total BHE Senior Debt$13,447 $8,581 

Junior Subordinated Debentures

BHE junior subordinated debentures consists of the following as of December 31 (in millions):
Par Value20202019
Junior subordinated debentures, due 2057
100 100 100 
Total BHE junior subordinated debentures - noncurrent
$100 $100 $100 
Long-term debt of subsidiaries consists of the following, including fair value adjustments and unamortized premiums, discounts and debt issuance costs, as of December 31 (in millions):
Par Value20202019
PacifiCorp$8,667 $8,612 $7,658 
MidAmerican Funding7,515 7,431 7,427 
NV Energy3,701 3,673 3,821 
Northern Powergrid3,285 3,259 3,221 
BHE Pipeline Group5,705 6,165 1,247 
BHE Transmission3,897 3,877 3,879 
BHE Renewables3,152 3,116 3,206 
HomeServices186 186 213 
Total subsidiary debt$36,108 $36,319 $30,672 
Reflected as:
Current liabilities$1,389 $2,189 
Noncurrent liabilities34,930 28,483 
Total subsidiary debt$36,319 $30,672 
MidAmerican Energy's long-term debt consists of the following, including amounts maturing within one year and unamortized premiums, discounts and debt issuance costs, as of December 31 (dollars in millions):
Par Value20202019
First mortgage bonds:
3.70%, due 2023
$250 $249 $249 
3.50%, due 2024
500 501 501 
3.10%, due 2027
375 373 373 
3.65%, due 2029
850 862 864 
4.80%, due 2043
350 346 346 
4.40%, due 2044
400 395 395 
4.25%, due 2046
450 445 445 
3.95%, due 2047
475 470 470 
3.65%, due 2048
700 689 688 
4.25%, due 2049
900 873 872 
3.15%, due 2050
600 592 591 
Notes:
6.75% Series, due 2031
400 397 396 
5.75% Series, due 2035
300 298 298 
5.80% Series, due 2036
350 348 348 
Transmission upgrade obligation, 4.45% and 3.42% due through 2035 and 2036, respectively
6 4 4 
Variable-rate tax-exempt bond obligation series: (weighted average interest rate- 2020-0.14%, 2019-1.66%):
Due 2023, issued in 1993
7 7 7 
Due 2023, issued in 2008
57 57 57 
Due 202435 35 35 
Due 202513 13 13 
Due 203633 33 33 
Due 203845 45 45 
Due 204630 29 29 
Due 2047150 149 149 
Total$7,276 $7,210 $7,208 
Maturities of Long-term Debt [Table Text Block]
Annual Repayments of Long-Term Debt

The annual repayments of BHE and subsidiary debt for the years beginning January 1, 2021 and thereafter, excluding fair value adjustments and unamortized premiums, discounts and debt issuance costs, are as follows (in millions):
2026 and
20212022202320242025ThereafterTotal
BHE senior notes$450 $— $900 $— $1,650 $10,551 $13,551 
BHE junior subordinated debentures— — — — — 100 100 
PacifiCorp420 605 449 591 302 6,300 8,667 
MidAmerican Funding— — 315 535 13 6,652 7,515 
NV Energy— — 250 — — 3,451 3,701 
Northern Powergrid40 521 42 44 319 2,319 3,285 
BHE Pipeline Group700 — 650 1,050 — 3,305 5,705 
BHE Transmission— 374 394 280 — 2,849 3,897 
BHE Renewables196 195 200 210 241 2,110 3,152 
HomeServices33 153 — — — — 186 
Totals $1,839 $1,848 $3,200 $2,710 $2,525 $37,637 $49,759 
MidAmerican Energy Company [Member]  
Debt Instrument [Line Items]  
Maturities of Long-term Debt [Table Text Block]
The annual repayments of MidAmerican Energy's long-term debt for the years beginning January 1, 2021, and thereafter, excluding unamortized premiums, discounts and debt issuance costs, are as follows (in millions):
2021$— 
2022— 
2023315 
2024535 
202513 
2026 and thereafter6,413 
Sierra Pacific Power Company [Member]  
Debt Instrument [Line Items]  
Subsidiary Debt [Table Text Block]
Sierra Pacific's long-term debt consists of the following, including unamortized premiums, discounts and debt issuance costs, as of December 31 (dollars in millions):
Par Value20202019
General and refunding mortgage securities:
3.375% Series T, due 2023
$250 $249 $249 
2.600% Series U, due 2026
400 396 396 
6.750% Series P, due 2037
252 255 255 
Tax-exempt refunding revenue bond obligations:
Fixed-rate series:
1.850% Pollution Control Series 2016B, due 2029 (1)
30 29 29 
3.000% Gas and Water Series 2016B, due 2036 (2)
60 61 62 
0.625% Water Facilities Series 2016C, due 2036 (3)
30 30 — 
2.050% Water Facilities Series 2016D, due 2036 (1) (4)
25 25 25 
2.050% Water Facilities Series 2016E, due 2036 (1) (4)
25 25 25 
2.050% Water Facilities Series 2016F, due 2036 (1)
75 74 74 
1.850% Water Facilities Series 2016G, due 2036 (1)
20 20 20 
Total long-term debt $1,167 $1,164 $1,135 
Reflected as -
Long-term debt $1,164 $1,135 

(1)Subject to mandatory purchase by Sierra Pacific in April 2022 at which date the interest rate may be adjusted.
(2)Subject to mandatory purchase by Sierra Pacific in June 2022 at which date the interest rate may be adjusted.
(3)Bond was purchased by Sierra Pacific during 2019 and re-offered at a fixed rate in September 2020 for a two-year term subject to mandatory purchase by Sierra Pacific in April 2022.
(4)Bonds were purchased by Sierra Pacific during 2019 and re-offered at a fixed interest rate.
Maturities of Long-term Debt [Table Text Block]
The annual repayments of long-term debt for the years beginning January 1, 2021 and thereafter, are as follows (in millions):
2023
$250 
2026 and thereafter917 
Total1,167 
Unamortized premium, discount and debt issuance cost(3)
Total$1,164 
Nevada Power Company [Member]  
Debt Instrument [Line Items]  
Subsidiary Debt [Table Text Block]
Nevada Power's long-term debt consists of the following, including unamortized premiums, discounts and debt issuance costs, as of December 31 (dollars in millions):
Par Value20202019
General and refunding mortgage securities:
2.750% Series BB, due 2020
$— $— $575 
3.700% Series CC, due 2029
500 496 496 
2.400% Series DD, due 2030
425 422 — 
6.650% Series N, due 2036
367 359 358 
6.750% Series R, due 2037
349 346 346 
5.375% Series X, due 2040
250 248 248 
5.450% Series Y, due 2041
250 237 237 
3.125% Series EE, due 2050
300 297 — 
Tax-exempt refunding revenue bond obligations:
Fixed-rate series:
1.875% Pollution Control Bonds Series 2017A, due 2032(1)
40 39 39 
1.650% Pollution Control Bonds Series 2017, due 2036(1)
40 39 39 
1.650% Pollution Control Bonds Series 2017B, due 2039(1)
13 13 13 
Total long-term debt $2,534 $2,496 $2,351 
Reflected as:
Current portion of long-term debt$— $575 
Long-term debt 2,496 1,776 
Total long-term debt $2,496 $2,351 
(1)Bonds were purchased by Nevada Power in May 2020 and re-offered at a fixed interest rate. Subject to mandatory purchase by Nevada Power in March 2023 at which date the interest rate may be adjusted.
Maturities of Long-term Debt [Table Text Block]
The annual repayments of long-term debt for the years beginning January 1, 2021 and thereafter, are as follows (in millions):
2026 and thereafter$2,534 
Unamortized premium, discount and debt issuance cost(38)
Total$2,496 
PacifiCorp [Member]  
Debt Instrument [Line Items]  
Maturities of Long-term Debt [Table Text Block]
As of December 31, 2020, the annual principal maturities of long-term debt for 2021 and thereafter are as follows (in millions):
Long-term
Debt
2021$420 
2022605 
2023449 
2024591 
2025302 
Thereafter6,300 
Total8,667 
Unamortized discount and debt issuance costs(55)
Total$8,612 
Eastern Energy Gas Holdings, LLC [Member]  
Debt Instrument [Line Items]  
Subsidiary Debt [Table Text Block]
Eastern Energy Gas' long-term debt consists of the following, including unamortized premiums, discounts and debt issuance costs, as of December 31 (dollars and euros in millions):

Par Value20202019
Variable-rate Senior Notes, due 2021(1)
$500 $500 $499 
2.8% Senior Notes, due 2020
— — 699 
2.875% Senior Notes, due 2023
250 249 249 
3.55% Senior Notes, due 2023
400 399 398 
2.5% Senior Notes, due 2024
600 596 596 
3.6% Senior Notes, due 2024
450 448 447 
3.32% Senior Notes, due 2026 (€250)(2)
305 304 279 
3.53% Senior Notes, due 2028(3)
— — 99 
3% Senior Notes, due 2029
600 594 594 
3.8% Senior Notes, due 2031
150 150 149 
3.91% Senior Notes, due 2038(3)
— — 149 
4.875% Senior Notes, due 2041(3)
— — 177 
4.8% Senior Notes, due 2043
400 395 395 
4.6% Senior Notes, due 2044
500 493 493 
3.9% Senior Notes, due 2049
300 297 297 
Total long-term debt $4,455 $4,425 $5,520 
Reflected as:
Current portion of long-term debt$500 $699 
Long-term debt 3,925 4,821 
Total long-term debt $4,425 $5,520 

(1)The senior notes have variable interest rates based on LIBOR plus an applicable spread. Eastern Energy Gas has entered into an interest rate swap that fixes the interest rate on 100% of the notes. The fixed interest rates as of December 31, 2020 and 2019 were 3.46% (including a 0.60% margin).
(2)The senior notes are denominated in Euros with an outstanding principal balance of €250 million and a fixed interest rate of 1.45%. Eastern Energy Gas has entered into cross currency swaps that fix USD payments for 100% of the notes. The fixed USD outstanding principal when combined with the swaps is $280 million, with fixed interest rates at both December 31, 2020 and 2019 that averaged 3.32%.
(3)Long-term debt associated with the Questar Pipeline Group.
Maturities of Long-term Debt [Table Text Block]
The annual repayments of long-term debt for the years beginning January 1, 2021 and thereafter, are as follows (in millions):

2021$500 
2022— 
2023650 
20241,050 
2025— 
2026 and thereafter2,255 
Total4,455 
Unamortized premium, discount and debt issuance cost(30)
Total$4,425 
BHE Pipeline Group [Member]  
Debt Instrument [Line Items]  
Subsidiary Debt [Table Text Block]
BHE Pipeline Group

BHE Pipeline Group's long-term debt consists of the following, including unamortized premiums, discounts and debt issuance costs, as of December 31 (dollars in millions):
Par Value20202019
Eastern Energy Gas:
Variable-rate Senior Notes, due 2021(1)
$500 $500 $— 
2.875% Senior Notes, due 2023
250 249 — 
3.55% Senior Notes, due 2023
400 399 — 
2.50% Senior Notes, due 2024
600 596 — 
3.60% Senior Notes, due 2024
450 448 — 
3.32% Senior Notes, due 2026 (€250)(2)
305 304 — 
3.00% Senior Notes, due 2029
600 594 — 
3.80% Senior Notes, due 2031
150 150 — 
4.80% Senior Notes, due 2043
400 395 — 
4.60% Senior Notes, due 2044
500 493 — 
3.90% Senior Notes, due 2049
300 297 — 
Total Eastern Energy Gas4,455 4,425 — 
Purchase price adjustment— 493 — 
Total Eastern Energy Gas, net of purchase accounting adjustment4,455 4,918 — 
Northern Natural Gas:
4.25% Senior Notes, due 2021
200 200 200 
5.80% Senior Bonds, due 2037
150 149 149 
4.10% Senior Bonds, due 2042
250 248 248 
4.30% Senior Bonds, due 2049
650 650 650 
Total Northern Natural Gas1,250 1,247 1,247 
Total BHE Pipeline Group$5,705 $6,165 $1,247 
PacifiCorp [Member]  
Debt Instrument [Line Items]  
Subsidiary Debt [Table Text Block]
PacifiCorp

PacifiCorp's long-term debt consists of the following, including unamortized premiums, discounts and debt issuance costs as of December 31 (dollars in millions):
Par Value20202019
First mortgage bonds:
2.95% to 8.53%, due through 2025
$2,149 $2,145 $2,144 
2.70% to 6.71%, due 2026 to 2030
900 895 497 
5.25% to 7.70%, due 2031 to 2035
800 796 795 
5.75% to 6.35%, due 2036 to 2039
2,500 2,485 2,484 
4.10%, due 2042
300 297 297 
3.30% to 4.15%, due 2049 to 2051
1,800 1,776 1,186 
Variable-rate series, tax-exempt bond obligations (2020-0.14% to 0.16%; 2019-1.60% to 1.80%):
Due 2020
— — 38 
Due 2025
25 25 24 
Due 2024 to 2025(1)
193 193 193 
Total PacifiCorp$8,667 $8,612 $7,658 

(1)Secured by pledged first mortgage bonds registered to and held by the tax-exempt bond trustee generally with the same interest rates, maturity dates and redemption provisions as the tax-exempt bond obligations.
MidAmerican Funding [Member]  
Debt Instrument [Line Items]  
Subsidiary Debt [Table Text Block]
MidAmerican Funding

MidAmerican Funding's long-term debt consists of the following, including fair value adjustments and unamortized premiums, discounts and debt issuance costs, as of December 31 (dollars in millions):
Par Value20202019
MidAmerican Funding:
6.927% Senior Bonds, due 2029
$239 $221 $219 
MidAmerican Energy:
Tax-exempt bond obligations -
Variable-rate tax-exempt bond obligation series: (weighted average interest rate - 2020-0.14%, 2019-1.66%), due 2023-2047
370 368 368 
First Mortgage Bonds:
3.70%, due 2023
250 249 249 
3.50%, due 2024
500 501 501 
3.10%, due 2027
375 373 373 
3.65%, due 2029
850 862 864 
4.80%, due 2043
350 346 346 
4.40%, due 2044
400 395 395 
4.25%, due 2046
450 445 445 
3.95%, due 2047
475 470 470 
3.65%, due 2048
700 689 688 
4.25%, due 2049
900 873 872 
3.15%, due 2050
600 592 591 
Notes:
6.75% Series, due 2031
400 397 396 
5.75% Series, due 2035
300 298 298 
5.80% Series, due 2036
350 348 348 
Transmission upgrade obligation, 4.45% and 3.42% due through 2035 and 2036, respectively
6 4 4 
Total MidAmerican Energy7,276 7,210 7,208 
Total MidAmerican Funding$7,515 $7,431 $7,427 
NV Energy [Member]  
Debt Instrument [Line Items]  
Subsidiary Debt [Table Text Block]
NV Energy

NV Energy's long-term debt consists of the following, including fair value adjustments and unamortized premiums, discounts and debt issuance costs, as of December 31 (dollars in millions):
Par Value20202019
NV Energy:
6.250% Senior Notes, due 2020
$— $— $321 
Nevada Power:
General and refunding mortgage securities:
2.750% Series BB, due 2020
— — 575 
3.700% Series CC, due 2029
500 496 496 
2.400% Series DD, due 2030
425 422 — 
6.650% Series N, due 2036
367 361 360 
6.750% Series R, due 2037
349 347 348 
5.375% Series X, due 2040
250 249 249 
5.450% Series Y, due 2041
250 244 245 
3.125% Series EE, due 2050
300 297 — 
Tax-exempt refunding revenue bond obligations:
Fixed-rate series:
1.875% Pollution Control Bonds Series 2017A, due 2032(1)
40 39 39 
1.650% Pollution Control Bonds Series 2017, due 2036(1)
40 39 39 
1.650% Pollution Control Bonds Series 2017B, due 2039(1)
13 13 13 
Total Nevada Power2,534 2,507 2,364 
Sierra Pacific:
General and refunding mortgage securities:
3.375% Series T, due 2023
250 249 249 
2.600% Series U, due 2026
400 397 396 
6.750% Series P, due 2037
252 256 256 
Tax-exempt refunding revenue bond obligations:
Fixed-rate series:
1.850% Pollution Control Series 2016B, due 2029(2)
30 29 29 
3.000% Gas and Water Series 2016B, due 2036(3)
60 61 62 
0.625% Water Facilities Series 2016C, due 2036(4)
30 30 — 
2.050% Water Facilities Series 2016D, due 2036(2)(5)
25 25 25 
2.050% Water Facilities Series 2016E, due 2036(2)(5)
25 25 25 
2.050% Water Facilities Series 2016F, due 2036(2)
75 74 74 
1.850% Water Facilities Series 2016G, due 2036(2)
20 20 20 
Total Sierra Pacific1,167 1,166 1,136 
Total NV Energy$3,701 $3,673 $3,821 
BHE Transmission [Member]  
Debt Instrument [Line Items]  
Subsidiary Debt [Table Text Block]
BHE Transmission

BHE Transmission's long-term debt consists of the following, including fair value adjustments and unamortized premiums, discounts and debt issuance costs, as of December 31 (dollars in millions):
Par Value(1)
20202019
AltaLink Investments, L.P.:
Series 13-1 Senior Bonds, 3.265%, due 2020
$— $— $154 
Series 15-1 Senior Bonds, 2.244%, due 2022
157 157 154 
Total AltaLink Investments, L.P.157 157 308 
AltaLink, L.P.:
Series 2013-2 Notes, 3.621%, due 2020
— — 96 
Series 2012-2 Notes, 2.978%, due 2022
216 216 212 
Series 2013-4 Notes, 3.668%, due 2023
393 392 384 
Series 2014-1 Notes, 3.399%, due 2024
275 275 269 
Series 2016-1 Notes, 2.747%, due 2026
275 274 269 
Series 2020-1 Notes, 1.509%, due 2030
177 175 — 
Series 2006-1 Notes, 5.249%, due 2036
118 118 115 
Series 2010-1 Notes, 5.381%, due 2040
98 98 96 
Series 2010-2 Notes, 4.872%, due 2040
118 117 115 
Series 2011-1 Notes, 4.462%, due 2041
216 215 211 
Series 2012-1 Notes, 3.990%, due 2042
413 407 398 
Series 2013-3 Notes, 4.922%, due 2043
275 274 268 
Series 2014-3 Notes, 4.054%, due 2044
232 230 226 
Series 2015-1 Notes, 4.090%, due 2045
275 273 268 
Series 2016-2 Notes, 3.717%, due 2046
354 351 345 
Series 2013-1 Notes, 4.446%, due 2053
196 196 192 
Series 2014-2 Notes, 4.274%, due 2064
102 102 100 
Total AltaLink, L.P.3,733 3,713 3,564 
Other:
Construction Loan, 5.620%, due 2024
7 7 7 
Total BHE Transmission$3,897 $3,877 $3,879 

(1)The par values for these debt instruments are denominated in Canadian dollars.
Berkshire Hathaway Energy Renewables [Member]  
Debt Instrument [Line Items]  
Subsidiary Debt [Table Text Block]
BHE Renewables

BHE Renewables' long-term debt consists of the following, including unamortized premiums, discounts and debt issuance costs, as of December 31 (dollars in millions):
Par Value20202019
Fixed-rate(1):
Bishop Hill Holdings Senior Notes, 5.125%, due 2032
$70 $69 $77 
Solar Star Funding Senior Notes, 3.950%, due 2035
271 269 280 
Solar Star Funding Senior Notes, 5.375%, due 2035
861 853 886 
Grande Prairie Wind Senior Notes, 3.860%, due 2037
330 327 355 
Topaz Solar Farms Senior Notes, 5.750%, due 2039
638 631 672 
Topaz Solar Farms Senior Notes, 4.875%, due 2039
182 180 193 
Alamo 6 Senior Notes, 4.170%, due 2042
208 205 213 
Other9 8 13 
Variable-rate(1):
TX Jumbo Road Term Loan, due 2025(2)
140 138 158 
Marshall Wind Term Loan, due 2026(2)
70 69 75 
Pinyon Pines I and II Term Loans, due 2034(2)
373 367 284 
Total BHE Renewables$3,152 $3,116 $3,206 

(1)Amortizes quarterly or semiannually.
(2)The term loans have variable interest rates based on LIBOR plus a margin that varies during the terms of the agreements. The Company has entered into interest rate swaps that fix the interest rate on 100% of the Pinyon Pines, TX Jumbo Road and Marshall Wind outstanding debt. The fixed interest rates as of December 31, 2020 and 2019 ranged from 3.21% to 5.41%. As of December 31, 2019, Pinyon Pines I and II had entered into interest rate swaps that fixed the interest rate on 75% of the Pinyon Pines outstanding debt through December 31, 2019 and 50% of the Pinyon Pines outstanding debt thereafter. The variable interest rate as of December 31, 2019 was 3.69%.
HomeServices [Member]  
Debt Instrument [Line Items]  
Subsidiary Debt [Table Text Block]
HomeServices

HomeServices' long-term debt consists of the following, including unamortized premiums, discounts and debt issuance costs, as of December 31 (dollars in millions):
Par Value20202019
Variable-rate:
Variable-rate term loan (2020 - 1.394%, 2019 - 3.299%), due 2022(1)
$186 $186 $213 
(1)Term loan amortizes quarterly and variable-rate resets monthly.