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BHE Debt (Tables)
 12 Months Ended
Dec. 31, 2024
Debt Disclosure [Abstract]  
Schedule of Long-term Debt 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 Value20242023
3.50% Senior Notes, due 2025
$400 $400 $399 
4.05% Senior Notes, due 2025
1,250 1,250 1,248 
3.25% Senior Notes, due 2028
600 597 593 
8.48% Senior Notes, due 2028
256 257 264 
3.70% Senior Notes, due 2030
1,100 1,097 1,096 
1.65% Senior Notes, due 2031
500 498 498 
6.125% Senior Bonds, due 2036
1,670 1,663 1,663 
5.95% Senior Bonds, due 2037
550 548 548 
6.50% Senior Bonds, due 2037
225 223 223 
5.15% Senior Notes, due 2043
750 741 741 
4.50% Senior Notes, due 2045
750 739 739 
3.80% Senior Notes, due 2048
750 738 736 
4.45% Senior Notes, due 2049
1,000 991 990 
4.25% Senior Notes, due 2050
900 889 889 
2.85% Senior Notes, due 2051
1,500 1,489 1,488 
4.60% Senior Notes, due 2053
1,000 987 986 
Total BHE Senior Debt$13,201 $13,107 $13,101 
Reflected as:
Current liabilities
$1,650 $— 
Noncurrent liabilities
11,457 13,101 
Total BHE Senior Debt$13,107 $13,101 
BHE junior subordinated debentures consists of the following as of December 31 (in millions):
Par Value20242023
5.00% Junior subordinated debentures, due 2057
$— $— $100 
Total BHE junior subordinated debentures - noncurrent
$— $— $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 Value20242023
PacifiCorp$13,702 $13,588 $10,410 
MidAmerican Funding9,176 9,053 8,992 
NV Energy4,971 4,932 4,695 
Northern Powergrid3,367 3,337 3,465 
BHE Pipeline Group5,359 5,582 5,154 
BHE Transmission3,285 3,267 3,574 
BHE Renewables2,350 2,331 2,548 
HomeServices60 60 133 
Total subsidiary debt$42,270 $42,150 $38,971 
Reflected as:
Current liabilities$996 $2,740 
Noncurrent liabilities41,154 36,231 
Total subsidiary debt$42,150 $38,971 
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 Value20242023
First mortgage bonds:
3.60%, due 2024
$— $— $425 
3.35%, due 2025
250 250 250 
6.71%, due 2026
100 100 99 
5.10%, due 2029
500 498 — 
3.50%, due 2029
400 399 399 
2.70%, due 2030
400 398 398 
5.30%, due 2031
700 696 — 
7.70%, due 2031
300 299 299 
5.45%, due 2034
1,100 1,093 — 
5.90%, due 2034
200 199 199 
5.25%, due 2035
300 299 299 
6.10%, due 2036
350 348 348 
5.75%, due 2037
600 600 600 
6.25%, due 2037
600 598 597 
6.35%, due 2038
300 298 298 
6.00%, due 2039
650 644 644 
4.10%, due 2042
300 298 298 
4.125%, due 2049
600 594 594 
4.15%, due 2050
600 594 593 
3.30%, due 2051
600 591 591 
2.90%, due 2052
1,000 985 985 
5.35%, due 2053
1,100 1,088 1,087 
5.50%, due 2054
1,200 1,189 1,189 
5.80%, due 2055
1,500 1,478 — 
Variable-rate series, tax-exempt bond obligations (2024-3.20% to 4.45%; 2023-4.60% to 5.60%):
Secured(1), due 2024
— — 166 
Secured(1), due 2025
27 27 27 
Unsecured, due 2025
25 25 25 
Total PacifiCorp$13,702 $13,588 $10,410 

(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'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 Value20242023
MidAmerican Funding:
6.927% Senior Bonds, due 2029
$239 $240 $240 
Fair value adjustment— (11)(14)
MidAmerican Funding, net of fair value adjustments239 229 226 
MidAmerican Energy:
First mortgage bonds:
3.50%, due 2024
— — 500 
3.10%, due 2027
375 374 374 
3.65%, due 2029
850 857 858 
5.35%, due 2034
350 347 347 
4.80%, due 2043
350 347 347 
4.40%, due 2044
400 396 396 
4.25%, due 2046
450 446 446 
3.95%, due 2047
475 471 471 
3.65%, due 2048
700 690 690 
4.25%, due 2049
900 876 876 
3.15%, due 2050
600 593 592 
2.70%, due 2052
500 493 492 
5.85%, due 2054
1,000 990 989 
5.30%, due 2055
600 592 — 
Notes:
6.75% Series, due 2031
400 398 398 
5.75% Series, due 2035
300 299 299 
5.80% Series, due 2036
350 348 348 
Transmission upgrade obligation, 3.30% to 7.90%, due 2036 to 2043
66 37 39 
Tax-exempt bond obligations -
Variable-rate tax-exempt bond obligation series: (weighted average interest rate - 2024-3.36%, 2023-4.81%), due 2024-2047
271 270 304 
Total MidAmerican Energy8,937 8,824 8,766 
Total MidAmerican Funding$9,176 $9,053 $8,992 
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 Value20242023
Nevada Power:
General and refunding mortgage securities:
3.70% Series CC, due 2029
$500 $498 $498 
2.40% Series DD, due 2030
425 423 423 
6.65% Series N, due 2036
367 361 360 
6.75% Series R, due 2037
349 347 346 
5.375% Series X, due 2040
250 248 248 
5.45% Series Y, due 2041
250 240 240 
3.125% Series EE, due 2050
300 298 298 
5.90% Series GG, due 2053
400 394 394 
6.00% Series 2023A, due 2054
500 495 494 
Tax-exempt refunding revenue bond obligations:
Fixed-rate series:
4.125% Pollution Control Bonds Series 2017A, due 2032(1)
40 39 39 
3.75% Pollution Control Bonds Series 2017, due 2036(1)
40 39 39 
3.75% Pollution Control Bonds Series 2017B, due 2039(1)
13 13 13 
Total Nevada Power3,434 3,395 3,392 
Fair value adjustments — 9 9 
Total Nevada Power, net of fair value adjustments3,434 3,404 3,401 
Sierra Pacific:
General and refunding mortgage securities:
2.60% Series U, due 2026
400 399 398 
6.75% Series P, due 2037
252 254 254 
 4.71% Series W, due 2052
250 248 248 
5.90% Series 2023A, due 2054
400 394 393 
Tax-exempt refunding revenue bond obligations:
Fixed-rate series:
3.55% Pollution Control Series 2016A, due 2029
20 20 — 
3.55% Pollution Control Series 2016B, due 2029(2)
30 29 — 
3.625% Gas and Water Series 2016B, due 2036(3)
60 59 — 
4.125% Water Facilities Series 2016C, due 2036(3)
30 30 — 
4.125% Water Facilities Series 2016F, due 2036(3)
75 74 — 
3.625% Water Facilities Series 2016G, due 2036(3)
20 20 — 
Total Sierra Pacific1,537 1,527 1,293 
Fair value adjustments
— 1 1 
Total Sierra Pacific, net of fair value adjustment1,537 1,528 1,294 
Total NV Energy$4,971 $4,932 $4,695 

(1)    Subject to mandatory purchase by Nevada Power in March 2026 at which date the interest rate may be adjusted.
(2)    Subject to mandatory sinking fund redemption by Sierra Pacific in the principal amount of $10 million in April 2026.
(3)    Subject to mandatory purchase by Sierra Pacific in October 2029 at which date the interest rate may be adjusted.
Northern Powergrid and its subsidiaries' 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)
20242023
2.50% Bonds, due 2025
$188 $187 $191 
2.073% European Investment Bank loan, due 2025
62 63 65 
2.564% European Investment Bank loans, due 2027
312 313 317 
7.25% Bonds, due 2028
232 234 238 
4.375% Bonds, due 2032
188 186 189 
5.625% Bonds, due 2033
313 309 314 
5.125% Bonds, due 2035
250 248 252 
5.125% Bonds, due 2035
188 186 189 
2.75% Bonds, due 2049
188 185 188 
3.25% Bonds, due 2052
438 433 442 
2.25% Bonds, due 2059
375 368 374 
1.875% Bonds, due 2062
375 369 375 
Variable-rate loan, due 2025(2)
137 137 158 
Variable-rate loan, due 2026(3)
121 119 173 
Total Northern Powergrid$3,367 $3,337 $3,465 

(1)The par values for these debt instruments are denominated in sterling.
(2)Amortizes quarterly and the loan is 70% floating and 30% fixed. The Company has entered into an interest rate swap that fixes the interest rate on 100% of the floating rate portion. The variable interest rate as of December 31, 2024, was 6.47% (including 2.00% margin) and the average fixed interest rate was 3.08% (including 2.00% margin).

(3)Amortizes semiannually and the Company has entered into an interest rate swap that fixes the interest rate on 80% of the outstanding debt. The variable interest rate as of December 31, 2024 was 6.50% (including 1.65% margin) and the fixed interest rate was 2.55% (including 1.65% margin), resulting in a blended rate of 3.34%.
BHE Pipeline Group'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 Value20242023
Eastern Energy Gas:
2.50% Senior Notes, due 2024
$— $— $600 
3.60% Senior Notes, due 2024
— — 339 
3.317% Senior Notes, due 2026 (€250)(1)
259 259 274 
3.00% Senior Notes, due 2029
174 173 173 
3.80% Senior Notes, due 2031
150 150 150 
4.80% Senior Notes, due 2043
54 53 53 
4.60% Senior Notes, due 2044
56 56 56 
3.90% Senior Notes, due 2049
27 26 26 
5.65% Senior Notes, due 2054
900 892 — 
EGTS:
3.60% Senior Notes, due 2024
— — 111 
3.00% Senior Notes, due 2029
426 423 422 
5.02% Senior Notes, due 2034
150 149 — 
4.80% Senior Notes, due 2043
346 342 342 
4.60% Senior Notes, due 2044
444 437 437 
3.90% Senior Notes, due 2049
273 271 271 
Total Eastern Energy Gas3,259 3,231 3,254 
Fair value adjustments— 268 312 
Total Eastern Energy Gas, net of fair value adjustments3,259 3,499 3,566 
Northern Natural Gas:
5.80%Senior Bonds, due 2037
150 149 149 
4.10%Senior Bonds, due 2042
250 248 248 
4.30%Senior Bonds, due 2049
650 651 651 
3.40% Senior Bonds, due 2051
550 540 540 
5.625% Senior Bonds, due 2054
500 495 — 
Total Northern Natural Gas2,100 2,083 1,588 
Total BHE Pipeline Group$5,359 $5,582 $5,154 

(1)    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, 2024 and 2023 that averaged 3.317%.
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)
20242023
AltaLink, L.P.:
Series 2014-1 Notes, 3.399%, due 2024
$— $— $264 
Series 2016-1 Notes, 2.747%, due 2026
243 243 264 
Series 2020-1 Notes, 1.509%, due 2030
157 156 169 
Series 2022-1 Notes, 4.692%, due 2032
191 190 207 
Series 2006-1 Notes, 5.249%, due 2036
104 104 113 
Series 2010-1 Notes, 5.381%, due 2040
87 87 94 
Series 2010-2 Notes, 4.872%, due 2040
104 104 113 
Series 2011-1 Notes, 4.462%, due 2041
191 190 207 
Series 2012-1 Notes, 3.99%, due 2042
365 360 391 
Series 2013-3 Notes, 4.922%, due 2043
243 242 263 
Series 2014-3 Notes, 4.054%, due 2044
205 204 222 
Series 2015-1 Notes, 4.09%, due 2045
243 242 263 
Series 2016-2 Notes, 3.717%, due 2046
313 311 338 
Series 2013-1 Notes, 4.446%, due 2053
174 173 188 
Series 2024-1 Notes, 4.742%, due 2054
226 225 — 
Series 2023-1 Notes, 5.463%, due 2055
348 346 375 
Series 2014-2 Notes, 4.274%, due 2064
91 90 98 
Total AltaLink, L.P.3,285 3,267 3,569 
Other:
Construction Loan, 5.62%, due 2024
— — 5 
Total BHE Transmission$3,285 $3,267 $3,574 

(1)The par values for these debt instruments are denominated in Canadian dollars.
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 Value20242023
Fixed-rate(1):
Bishop Hill Holdings Senior Notes, 5.125%, due 2032
$47 $47 $50 
Solar Star Funding Senior Notes, 3.95%, due 2035
214 213 228 
Solar Star Funding Senior Notes, 5.375%, due 2035
698 693 739 
Grande Prairie Wind Senior Notes, 3.86%, due 2037
201 200 234 
Topaz Solar Farms Senior Notes, 5.75%, due 2039
508 504 536 
Topaz Solar Farms Senior Notes, 4.875%, due 2039
141 140 151 
Alamo 6 Senior Notes, 4.17%, due 2042
171 169 179 
Variable-rate(1):
TX Jumbo Road Term Loan, due 2025(2)
48 48 72 
Marshall Wind Term Loan, due 2026(2)
42 41 49 
Pinyon Pines I and II Term Loans, due 2034(2)
280 276 310 
Total BHE Renewables$2,350 $2,331 $2,548 

(1)Amortizes quarterly or semiannually.
(2)The term loans have variable interest rates based on SOFR 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 TX Jumbo Road, Marshall Wind and Pinyon Pines outstanding debt. The fixed interest rates as of December 31, 2024 ranged from. 3.31% to 3.73%. The fixed interest rates as of December 31, 2023 ranged from 3.23% to 3.88%.
HomeServices' long-term debt consists of the following, including unamortized premiums, discounts and debt issuance costs, as of December 31 (dollars in millions):
Par Value20242023
Variable-rate:
Variable-rate term loan (2024 - 7.41%, 2023 - 6.27%), due 2026(1)
$60 $60 $133 

(1)Term loan amortizes quarterly and variable-rate resets monthly.
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 Value20242023
First mortgage bonds:
3.50%, due 2024
$— $— $500 
3.10%, due 2027
375 374 374 
3.65%, due 2029
850 857 858 
5.35%, due 2034
350 347 347 
4.80%, due 2043
350 347 347 
4.40%, due 2044
400 396 396 
4.25%, due 2046
450 446 446 
3.95%, due 2047
475 471 471 
3.65%, due 2048
700 690 690 
4.25%, due 2049
900 876 876 
3.15%, due 2050
600 593 592 
2.70%, due 2052
500 493 492 
5.85%, due 2054
1,000 990 989 
5.30%, due 2055
600592 — 
Notes:
6.75% Series, due 2031
400 398 398 
5.75% Series, due 2035
300 299 299 
5.80% Series, due 2036
350 348 348 
Transmission upgrade obligations, 3.303% to 7.896%, due 2036 to 2043
66 37 39 
Variable-rate tax-exempt bond obligation series: (weighted average interest rate- 2024-3.359%, 2023-4.807%):
Due 2024— — 35 
Due 202513 13 13 
Due 203633 33 33 
Due 203845 45 45 
Due 204630 30 29 
Due 2047150 149 149 
Total long-term debt$8,937 $8,824 $8,766 
Reflected as:
20242023
Current portion of long-term debt$17 $539 
Long-term debt8,807 8,227 
Total long-term debt$8,824 $8,766