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Income Taxes
12 Months Ended
Dec. 31, 2022
Schedule of Effective Income Tax Rate Reconciliation [Line Items]  
Income Taxes Income Taxes
The Company's provision for income taxes has been computed on a stand-alone basis. Berkshire Hathaway includes the Company in its consolidated U.S. federal and Iowa state income tax returns and the majority of the Company's U.S. federal income tax is remitted to or received from Berkshire Hathaway. As of December 31, 2022, the Company had a current income tax payable to Berkshire Hathaway for federal income tax of $113 million. As of December 31, 2021, the Company had a current income tax receivable from Berkshire Hathaway for federal income tax of $324 million and a long-term income tax receivable from Berkshire Hathaway, reflected as a component of BHE's shareholders' equity, of $744 million for Iowa state income tax. Additionally, for the year ended December 31, 2021 the Company generated $100 million of Iowa state net operating losses which were carried forward and increased the long-term income tax receivable from Berkshire Hathaway. In July 2022, the Company amended its tax allocation agreement with Berkshire Hathaway, which changed how state tax attributes will be settled with respect to state income tax returns that Berkshire Hathaway includes the Company. As a result, the Company no longer expects to receive the cash benefits from the state of Iowa net operating loss carryforward previously recorded as a long-term income tax receivable from Berkshire Hathaway as a component of BHE's shareholders' equity, and recognized a noncash distribution of $744 million to retained earnings.

Income tax (benefit) expense consists of the following for the years ended December 31 (in millions):
202220212020
Current:
Federal$(1,463)$(1,701)$(1,537)
State(65)(177)(121)
Foreign79 100 86 
(1,449)(1,778)(1,572)
Deferred:
Federal(408)1,037 1,438 
State(49)(476)424 
Foreign(5)89 21 
(462)650 1,883 
Investment tax credits(5)(4)(3)
Total$(1,916)$(1,132)$308 
A reconciliation of the federal statutory income tax rate to the effective income tax rate applicable to income before income tax (benefit) expense is as follows for the years ended December 31:
202220212020
Federal statutory income tax rate21 %21 %21 %
Income tax credits(124)(27)(16)
Effects of ratemaking(16)(4)(3)
State income tax, net of federal income tax benefit(6)(10)
Non-controlling interest(6)(2)— 
Income tax effect of foreign income(4)— 
Equity loss(3)(1)— 
Other, net(1)
Effective income tax rate(136)%(21)%%

Income tax credits relate primarily to production tax credits ("PTC") from wind- and solar-powered generating facilities owned by MidAmerican Energy, PacifiCorp and BHE Renewables. Federal renewable electricity PTCs are earned as energy from qualifying wind- and solar-powered generating facilities is produced and sold and are based on a per-kilowatt hour rate pursuant to the applicable federal income tax law. Wind- and solar-powered generating facilities are eligible for the credits for 10 years from the date the qualifying generating facilities are placed in-service. PTCs recognized for the years ended December 31, 2022, 2021 and 2020 totaled $1.7 billion, $1.4 billion, and $1.2 billion, respectively.

Income tax effect on foreign income includes, among other items, a deferred income tax charge of $105 million in 2021, related to the United Kingdom's corporate income tax rate. The United Kingdom's rate is scheduled to increase from 19% to 25%, effective April 1, 2023, through legislation enacted in June 2021. The United Kingdom's rate was scheduled to decrease from 19% to 17% effective April 1, 2020; however, the rate was maintained at 19% through amended legislation enacted in July 2020.

The net deferred income tax liability consists of the following as of December 31 (in millions):
20222021
Deferred income tax assets:
Regulatory liabilities$1,323 $1,349 
Federal, state and foreign carryforwards812 820 
AROs283 304 
Other741 686 
Total deferred income tax assets3,159 3,159 
Valuation allowances(187)(164)
Total deferred income tax assets, net2,972 2,995 
Deferred income tax liabilities:
Property-related items(12,244)(11,814)
Investments(1,998)(2,877)
Regulatory assets(898)(764)
Other(510)(478)
Total deferred income tax liabilities(15,650)(15,933)
Net deferred income tax liability$(12,678)$(12,938)
The following table provides, without regard to valuation allowances, the Company's net operating loss and tax credit carryforwards and expiration dates as of December 31, 2022 (in millions):
FederalStateForeignTotal
Net operating loss carryforwards(1)
$192 $9,653 $725 $10,570 
Deferred income taxes on net operating loss carryforwards41 562 166 769 
Expiration dates
2023 - indefinite
2023 - indefinite
2028 - 2042
Tax credits$15 $28 $— $43 
Expiration dates
2023 - 2034
2023 - indefinite

(1)The federal net operating loss carryforwards relate principally to net operating loss carryforwards of subsidiaries that are tax residents in both the U.S. and the United Kingdom. The federal net operating loss carryforwards were generated prior to Berkshire Hathaway Inc.'s ownership and began to expire in 2022.

The U.S. Internal Revenue Service has closed or effectively settled its examination of the Company's income tax returns through December 31, 2013. The statute of limitations for the Company's income tax returns have expired for certain states through December 31, 2011, and for other states through December 31, 2018, except for the impact of any federal audit adjustments. The closure of examinations, or the expiration of the statute of limitations, for state filings may not preclude the state from adjusting the state net operating loss carryforward utilized in a year for which the statute of limitations is not closed.

A reconciliation of the beginning and ending balances of the Company's net unrecognized tax benefits is as follows for the years ended December 31 (in millions):
20222021
Beginning balance$97 $153 
Additions based on tax positions related to the current year15 24 
Additions for tax positions of prior years— 13 
Reductions based on tax positions related to the current year(12)(19)
Reductions for tax positions of prior years(23)(83)
Settlements— (1)
Interest and penalties(9)10 
Ending balance$68 $97 

As of December 31, 2022 and 2021, the Company had unrecognized tax benefits totaling $79 million and $100 million, respectively, that if recognized, would have an impact on the effective tax rate. The remaining unrecognized tax benefits relate to tax positions for which ultimate deductibility is highly certain but for which there is uncertainty as to the timing of such deductibility. Recognition of these tax benefits, other than applicable interest and penalties, would not affect the Company's effective income tax rate.
PAC  
Schedule of Effective Income Tax Rate Reconciliation [Line Items]  
Income Taxes Income Taxes
Income tax (benefit) expense consists of the following for the years ended December 31 (in millions):
2022 20212020
Current:
Federal$(216)$(150)$19 
State(3)30 
Total(219)(143)49 
Deferred:
Federal90 26 (124)
State71 40 
Total161 66 (123)
Investment tax credits(4)(2)(1)
Total income tax (benefit) expense$(62)$(79)$(75)
A reconciliation of the federal statutory income tax rate to the effective income tax rate applicable to income before income tax expense is as follows for the years ended December 31:
202220212020
Federal statutory income tax rate21 %21 %21 %
State income taxes, net of federal income tax benefit
Effects of ratemaking
(12)(14)(22)
Federal income tax credits
(22)(20)(13)
Valuation allowance— — 
Other— — 
Effective income tax rate(7)%(10)%(11)%

Income tax credits relate primarily to production tax credits ("PTC") earned by PacifiCorp's wind-powered generating facilities. Federal renewable electricity PTCs are earned as energy from qualifying wind-powered generating facilities is produced and sold and are based on a per-kilowatt hour rate pursuant to the applicable federal income tax law. Wind-powered generating facilities are eligible for the credits for 10 years from the date the qualifying generating facilities are placed in-service. PTCs for the years ended December 31, 2022, 2021 and 2020 totaled $185 million, $164 million and $89 million, respectively.

Effects of ratemaking is primarily attributable to activity associated with excess deferred income taxes. Excess deferred income tax amortization, net of deferrals, was $102 million for 2022. Excess deferred income tax amortization, net of deferrals, was $112 million for 2021, including the use of $4 million to amortize certain regulatory balances in Wyoming and Idaho. Excess deferred income tax amortization, net of deferrals, was $132 million for 2020, including the use of $118 million to accelerate depreciation of certain retired equipment and to amortize certain regulatory balances in Idaho, Oregon and Utah.

The net deferred income tax liability consists of the following as of December 31 (in millions):
20222021
Deferred income tax assets:
Regulatory liabilities$724 $682 
Employee benefits59 68 
State carryforwards73 73 
Loss contingencies107 63 
Asset retirement obligations79 73 
Other80 88 
  Total deferred income tax assets1,122 1,047 
Valuation allowances(35)(15)
Total deferred income tax assets, net1,087 1,032 
Deferred income tax liabilities:
Property, plant and equipment(3,612)(3,468)
Regulatory assets(462)(332)
Other(165)(79)
Total deferred income tax liabilities(4,239)(3,879)
Net deferred income tax liability$(3,152)$(2,847)
The following table provides, without regard to valuation allowances, PacifiCorp's net operating loss and tax credit carryforwards and expiration dates as of December 31, 2022 (in millions):
State
Net operating loss carryforwards$1,159 
Deferred income taxes on net operating loss carryforwards$53 
Expiration dates
2023 - indefinite
Tax credit carryforwards$20 
Expiration dates
2023 - indefinite

The U.S. Internal Revenue Service has closed or effectively settled its examination of PacifiCorp's income tax returns through December 31, 2013. The statute of limitations for PacifiCorp's income tax returns have expired for certain states through December 31, 2011, and for Idaho through December 31, 2018, except for the impact of any federal audit adjustments. The closure of examinations, or the expiration of the statute of limitations, for state filings may not preclude the state from adjusting the state net operating loss carryforward utilized in a year for which the statute of limitations is not closed.
MEC  
Schedule of Effective Income Tax Rate Reconciliation [Line Items]  
Income Taxes Income Taxes
MidAmerican Energy's income tax benefit consists of the following for the years ended December 31 (in millions):
202220212020
Current:
Federal$(769)$(736)$(684)
State(34)(92)(94)
(803)(828)(778)
Deferred:
Federal77 189 201 
State(43)(35)
34 154 209 
Investment tax credits(1)(1)(1)
Total$(770)$(675)$(570)
A reconciliation of the federal statutory income tax rate to MidAmerican Energy's effective income tax rate applicable to income before income tax benefit is as follows for the years ended December 31:
202220212020
Federal statutory income tax rate21 %21 %21 %
Income tax credits(372)(262)(199)
State income tax, net of federal income tax benefit(32)(46)(27)
Effects of ratemaking(23)(20)(17)
Other, net(1)(1)
Effective income tax rate(403)%(308)%(223)%

Income tax credits relate primarily to production tax credits ("PTC") earned by MidAmerican Energy's wind- and solar-powered generating facilities. Federal renewable electricity PTCs are earned as energy from qualifying wind- and solar-powered generating facilities is produced and sold and are based on a per-kilowatt hour rate pursuant to the applicable federal income tax law. Wind- and solar-powered generating facilities are eligible for the credits for 10 years from the date the qualifying generating facilities are placed in-service. PTCs recognized for the years ended December 31, 2022, 2021 and 2020 totaled $710 million, $574 million and $510 million, respectively.

MidAmerican Energy's net deferred income tax liability consists of the following as of December 31 (in millions):
20222021
Deferred income tax assets:
Regulatory liabilities$194 $240 
Asset retirement obligations191 220 
Revenue sharing87 33 
State carryforwards61 55 
Employee benefits37 26 
Other24 (3)
Total deferred income tax assets594 571 
Valuation allowances(2)(1)
Total deferred income tax assets, net592 570 
Deferred income tax liabilities:
Depreciable property(3,895)(3,843)
Regulatory assets(128)(112)
Other(2)(4)
Total deferred income tax liabilities(4,025)(3,959)
Net deferred income tax liability$(3,433)$(3,389)

As of December 31, 2022, MidAmerican Energy's state tax carryforwards, principally related to $921 million of net operating losses, expire at various intervals between 2023 and 2041.

The U.S. Internal Revenue Service has closed or effectively settled its examination of MidAmerican Energy's income tax returns through December 31, 2013. The statute of limitations for MidAmerican Energy's income tax returns have expired for certain states through December 31, 2011, and for other states through December 31, 2018, except for the impact of any federal audit adjustments. The closure of examinations, or the expiration of the statute of limitations, for state filings may not preclude the state from adjusting the state net operating loss carryforward utilized in a year for which the statute of limitations is not closed.
A reconciliation of the beginning and ending balances of MidAmerican Energy's net unrecognized tax benefits is as follows for the years ended December 31 (in millions):
20222021
Beginning balance$13 $
Additions based on tax positions related to the current year15 16 
Reductions based on tax positions related to the current year(12)(11)
Ending balance$16 $13 

As of December 31, 2022, MidAmerican Energy had unrecognized tax benefits totaling $39 million that, if recognized, would have an impact on the effective tax rate. The remaining unrecognized tax benefits relate to tax positions for which ultimate deductibility is highly certain but for which there is uncertainty as to the timing of such deductibility. Recognition of these tax benefits, other than applicable interest and penalties, would not affect MidAmerican Energy's effective income tax rate.
MidAmerican Funding, LLC  
Schedule of Effective Income Tax Rate Reconciliation [Line Items]  
Income Taxes Income Taxes
MidAmerican Funding's income tax benefit consists of the following for the years ended December 31 (in millions):
202220212020
Current:
Federal$(773)$(739)$(689)
State(36)(94)(96)
(809)(833)(785)
Deferred:
Federal77 189 204 
State(43)(35)
34 154 212 
Investment tax credits(1)(1)(1)
Total$(776)$(680)$(574)

A reconciliation of the federal statutory income tax rate to MidAmerican Funding's effective income tax rate applicable to income before income tax benefit is as follows for the years ended December 31:
202220212020
Federal statutory income tax rate21 %21 %21 %
Income tax credits(416)(283)(209)
State income tax, net of federal income tax benefit(36)(50)(29)
Effects of ratemaking(26)(21)(17)
Other, net(2)(1)
Effective income tax rate(454)%(335)%(235)%

Income tax credits relate primarily to production tax credits ("PTC") earned by MidAmerican Energy's wind- and solar-powered generating facilities. Federal renewable electricity PTCs are earned as energy from qualifying wind- and solar-powered generating facilities is produced and sold and are based on a per-kilowatt hour rate pursuant to the applicable federal income tax law. Wind- and solar-powered generating facilities are eligible for the credits for 10 years from the date the qualifying generating facilities are placed in-service. PTCs recognized for the years ended December 31, 2022, 2021 and 2020 totaled $710 million, $574 million and $510 million, respectively.
MidAmerican Funding's net deferred income tax liability consists of the following as of December 31 (in millions):
20222021
Deferred income tax assets:
Regulatory liabilities$194 $240 
Asset retirement obligations192 220 
Revenue sharing87 33 
State carryforwards61 55 
Employee benefits37 26 
Other24 (3)
Total deferred income tax assets595 571 
Valuation allowances(2)(1)
Total deferred income tax assets, net593 570 
Deferred income tax liabilities:
Depreciable property(3,895)(3,843)
Regulatory assets(128)(112)
Other(1)(2)
Total deferred income tax liabilities(4,024)(3,957)
Net deferred income tax liability$(3,431)$(3,387)

As of December 31, 2022, MidAmerican Funding's state tax carryforwards, principally related to $921 million of net operating losses, expire at various intervals between 2023 and 2041.

The U.S. Internal Revenue Service has closed or effectively settled its examination MidAmerican Funding's income tax returns through December 31, 2013. The statute of limitations for MidAmerican Funding's income tax returns have expired for certain states through December 31, 2011, and for other states through December 31, 2018, except for the impact of any federal audit adjustments. The closure of examinations, or the expiration of the statute of limitations, for state filings may not preclude the state from adjusting the state net operating loss carryforward utilized in a year for which the statute of limitations is not closed.

A reconciliation of the beginning and ending balances of MidAmerican Funding's net unrecognized tax benefits is as follows for the years ended December 31 (in millions):
20222021
Beginning balance$13 $
Additions based on tax positions related to the current year15 16 
Reductions based on tax positions related to the current year(12)(11)
Ending balance$16 $13 

As of December 31, 2022, MidAmerican Funding had unrecognized tax benefits totaling $39 million that, if recognized, would have an impact on the effective tax rate. The remaining unrecognized tax benefits relate to tax positions for which ultimate deductibility is highly certain but for which there is uncertainty as to the timing of such deductibility. Recognition of these tax benefits, other than applicable interest and penalties, would not affect MidAmerican Funding's effective income tax rate.
NPC  
Schedule of Effective Income Tax Rate Reconciliation [Line Items]  
Income Taxes Income Taxes
Income tax expense consists of the following for the years ended December 31 (in millions):
202220212020
Current – Federal$(13)$37 $57 
Deferred – Federal49 — (10)
Total income tax expense$36 $37 $47 

A reconciliation of the federal statutory income tax rate to the effective income tax rate applicable to income before income tax expense is as follows for the years ended December 31:
 202220212020
Federal statutory income tax rate21 %21 %21 %
Effects of ratemaking(11)(11)(8)
Other
Effective income tax rate11 %11 %14 %

The net deferred income tax liability consists of the following as of December 31 (in millions):
 20222021
Deferred income tax assets:  
Regulatory liabilities$186 $195 
Operating and finance leases68 73 
Customer advances27 25 
Unamortized contract value20 25 
Other
Total deferred income tax assets310 326 
Deferred income tax liabilities:
Property related items(821)(800)
Regulatory assets(273)(204)
Operating and finance leases(65)(70)
Other(26)(34)
Total deferred income tax liabilities(1,185)(1,108)
Net deferred income tax liability$(875)$(782)
The U.S. Internal Revenue Service has closed or effectively settled its examination of Nevada Power's income tax return through the short year ended December 31, 2013. The closure of examinations, or the expiration of the statute of limitations, may not preclude the U.S. Internal Revenue Service from adjusting the federal net operating loss carryforward utilized in a year for which the statute of limitations is not closed.
SPPC  
Schedule of Effective Income Tax Rate Reconciliation [Line Items]  
Income Taxes Income Taxes
Income tax expense consists of the following for the years ended December 31 (in millions):
202220212020
Current – Federal$(12)$$
Deferred – Federal31 13 12 
Total income tax expense$19 $18 $15 
A reconciliation of the federal statutory income rate to the effective income tax rate applicable to income before income tax expense is as follows for the years ended December 31:
 202220212020
Federal statutory income tax rate21 %21 %21 %
Effects of ratemaking(7)(8)(9)
Effective income tax rate14 %13 %12 %

The net deferred income tax liability consists of the following as of December 31 (in millions):
 20222021
Deferred income tax assets:  
Regulatory liabilities$63 $64 
Operating and finance leases26 27 
Customer advances17 14 
Unamortized contract value
Other
Total deferred income tax assets118 119 
Deferred income tax liabilities:
Property related items(387)(379)
Regulatory assets(135)(94)
Operating and finance leases(25)(27)
Other(16)(21)
Total deferred income tax liabilities(563)(521)
Net deferred income tax liability$(445)$(402)

The U.S. Internal Revenue Service has closed or effectively settled its examination of Sierra Pacific's income tax return through the short year ended December 31, 2013. The closure of examinations, or the expiration of the statute of limitations, may not preclude the U.S. Internal Revenue Service from adjusting the federal net operating loss carryforward utilized in a year for which the statute of limitations is not closed.
EEGH  
Schedule of Effective Income Tax Rate Reconciliation [Line Items]  
Income Taxes Income Taxes
Income tax expense (benefit) consists of the following for the years ended December 31 (in millions):

202220212020
Current:
Federal$12 $(47)$(20)
State29 (21)
41 (68)(19)
Deferred:
Federal88 129 23 
State38 56 (28)
126 185 (5)
Total$167 $117 $(24)

A reconciliation of the federal statutory income tax rate to the effective income tax rate applicable to income before income tax expense (benefit) is as follows for the years ended December 31:

202220212020
Federal statutory income tax rate21 %21 %21 %
State income tax, net of federal income tax benefit(13)
Equity interest
Effects of ratemaking(1)(2)
Change in tax status— — (9)
AFUDC-equity— — (1)
Noncontrolling interest(10)(11)(16)
Write-off of regulatory assets— — 
Other, net— 
Effective income tax rate18 %16 %(12)%

For the year ended December 31, 2022, Eastern Energy Gas' reconciliation of the federal statutory income tax rate to the effective income tax rate is driven primarily by the absence of tax on noncontrolling interest.
The net deferred income tax liability consists of the following as of December 31 (in millions):

20222021
Deferred income tax assets:
Federal and state carryforwards$23 $
Employee benefits22 33 
Intangibles112 150 
Derivatives and hedges16 16 
Other
Total deferred income tax assets180 215 
Deferred income tax liabilities:
Property related items(214)(129)
Partnership investments(51)(49)
Debt exchange(53)(60)
Deferred state income taxes(4)(16)
Other(12)(16)
Total deferred income tax liabilities(334)(270)
Net deferred income tax liability(1)
$(154)$(55)

(1)Net deferred income tax liability, as of both December 31, 2022 and 2021, is presented in other assets and other long-term liabilities in the Consolidated Balance Sheet.

As of December 31, 2022, Eastern Energy Gas' state tax carryforwards, entirely related to $23 million of net operating losses, expire at various intervals between 2036 and indefinite.

Through October 31, 2020, Eastern Energy Gas was included in DEI's consolidated federal income tax return and, where applicable, combined state income tax returns. As a result of the GT&S Transaction, DEI retained the rights and obligations of Eastern Energy Gas' federal and state income tax returns through October 31, 2020. The U.S. Internal Revenue Service has not closed or effectively settled an examination of Eastern Energy Gas' income tax returns for any tax years beginning on or after November 1, 2020. The statute of limitations for Eastern Energy Gas' states remains open for periods beginning on or after November 1, 2020. The closure of examinations, or the expiration of the statute of limitations, for state filings may not preclude the state from adjusting the state net operating loss carryforward utilized in a year for which the statute of limitations is not closed.
EGTS  
Schedule of Effective Income Tax Rate Reconciliation [Line Items]  
Income Taxes Income Taxes
Income tax expense (benefit) consists of the following for the years ended December 31 (in millions):

202220212020
Current:
Federal$$(22)$48 
State12 (10)
17 (32)54 
Deferred:
Federal64 67 (93)
State28 26 (28)
92 93 (121)
Total$109 $61 $(67)

A reconciliation of the federal statutory income tax rate to the effective income tax rate applicable to income (loss) before income tax expense (benefit) is as follows for the years ended December 31:

202220212020
Federal statutory income tax rate21 %21 %21 %
State income tax, net of federal income tax benefit
Effects of ratemaking— — 
AFUDC-equity— — 
Write-off of regulatory assets— — (3)
Other, net(1)(1)(1)
Effective income tax rate29 %28 %27 %

The net deferred income tax asset consists of the following as of December 31 (in millions):

20222021
Deferred income tax assets:
Federal and state carryforwards$$— 
Employee benefits22 31 
Intangibles and goodwill265 298 
Derivatives and hedges11 12 
Other
Total deferred income tax assets308 345 
Deferred income tax liabilities:
Property related items(146)(77)
Debt exchange(53)(60)
Employee benefits(4)(9)
Total deferred income tax liabilities(203)(146)
Net deferred income tax asset(1)
$105 $199 
(1)Net deferred income tax asset, as of both December 31, 2022 and 2021, is presented in other assets in the Consolidated Balance Sheet.
As of December 31, 2022, EGTS' state tax carryforwards, entirely related to $6 million of net operating losses, expire at various intervals between 2036 and indefinite.

Through October 31, 2020, EGTS was included in DEI's consolidated federal income tax return and, where applicable, combined state income tax returns. As a result of the GT&S Transaction, DEI retained the rights and obligations of EGTS' federal and state income tax returns through October 31, 2020. The U.S. Internal Revenue Service has not closed or effectively settled an examination of EGTS' income tax returns for any tax years beginning on or after November 1, 2020. The statute of limitations for EGTS' states remains open for periods beginning on or after November 1, 2020. The closure of examinations, or the expiration of the statute of limitations, for state filings may not preclude the state from adjusting the state net operating loss carryforward utilized in a year for which the statute of limitations is not closed.