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Income Taxes
 6 Months Ended
Jun. 30, 2022
Schedule of Effective Income Tax Rate Reconciliation [Line Items]  
Income Taxes Income Taxes
A reconciliation of the federal statutory income tax rate to the effective income tax rate applicable to income before income tax benefit is as follows:
Three-Month PeriodsSix-Month Periods
Ended June 30,Ended June 30,
 2022202120222021
 
Federal statutory income tax rate21 %21 %21 %21 %
Income tax credits(13)(13)(28)(27)
State income tax, net of federal income tax impacts(1)4 — 2 
Income tax effect of foreign income— 3 (1)3 
Effects of ratemaking(1)(2)(2)(4)
Equity income(1)— (1)(2)
Noncontrolling interest(1)(1)(2)(2)
Other, net1 — — 1 
Effective income tax rate5 %12 %(13)%(8)%

Income tax credits relate primarily to PTCs from wind-powered generating facilities owned by MidAmerican Energy, PacifiCorp and BHE Renewables. 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 six-month periods ended June 30, 2022 and 2021 totaled $734 million and $678 million, respectively.

Income tax effect on foreign income includes, among other items, a deferred income tax charge of $109 million recognized in June 2021 upon the enactment of an increase in the United Kingdom's corporate income tax rate from 19% to 25% effective April 1, 2023.

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. The Company received net cash payments for federal income taxes from Berkshire Hathaway for the six-month periods ended June 30, 2022 and 2021 totaling $1,249 million and $943 million, respectively.
PAC  
Schedule of Effective Income Tax Rate Reconciliation [Line Items]  
Income Taxes Income Taxes
A reconciliation of the federal statutory income tax rate to the effective income tax rate applicable to income before income tax benefit is as follows:
Three-Month PeriodsSix-Month Periods
Ended June 30,Ended June 30,
2022202120222021
Federal statutory income tax rate21 %21 %21 %21 %
State income tax, net of federal income tax benefit4 4 3 4 
Federal income tax credits(25)(19)(21)(19)
Effects of ratemaking(1)
(13)(15)(11)(14)
Valuation allowance— — 4 — 
Other2 — 1 — 
Effective income tax rate(11)%(9)%(3)%(8)%
(1)Effects of ratemaking is primarily attributable to activity associated with excess deferred income taxes.
Income tax credits relate primarily to production tax credits ("PTCs") 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 three-month periods ended June 30, 2022 and 2021 totaled $18 million and $40 million, respectively. PTCs for the six-month periods ended June 30, 2022 and 2021 totaled $44 million and $71 million, respectively.

For the six-month period ended June 30, 2022 PacifiCorp recorded a valuation allowance related to state net operating loss carryforwards.

Berkshire Hathaway includes BHE and its subsidiaries in its U.S. federal income tax return. Consistent with established regulatory practice, PacifiCorp's provision for federal and state income tax has been computed on a stand-alone basis, and substantially all of its currently payable or receivable income tax is remitted to or received from BHE. For the six-month periods ended June 30, 2022 and 2021, PacifiCorp received net cash payments for federal and state income tax from BHE totaling $150 million and $93 million, respectively.
MEC  
Schedule of Effective Income Tax Rate Reconciliation [Line Items]  
Income Taxes Income Taxes
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:
Three-Month PeriodsSix-Month Periods
Ended June 30,Ended June 30,
2022202120222021
Federal statutory income tax rate21 %21 %21 %21 %
Income tax credits(973)(271)(682)(634)
State income tax, net of federal income tax impacts(26)(31)(23)(32)
Effects of ratemaking(11)(15)(9)(21)
Other, net— 2 2 — 
Effective income tax rate(989)%(294)%(691)%(666)%

Income tax credits relate primarily to production tax credits ("PTCs") from MidAmerican Energy'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. MidAmerican Energy recognizes its renewable electricity PTCs throughout the year based on when the credits are earned and excludes them from the annual effective tax rate that is the basis for the interim recognition of other income tax expense. 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 six-month periods ended June 30, 2022 and 2021 totaled $388 million and $297 million, respectively.
Berkshire Hathaway includes BHE and subsidiaries in its U.S. federal and Iowa state income tax returns. Consistent with established regulatory practice, MidAmerican Energy's provision for income tax has been computed on a stand-alone basis, and substantially all of its currently payable or receivable income tax is remitted to or received from BHE. MidAmerican Energy received net cash payments for income tax from BHE totaling $541 million and $558 million for the six-month periods ended June 30, 2022 and 2021, respectively.
MidAmerican Funding, LLC  
Schedule of Effective Income Tax Rate Reconciliation [Line Items]  
Income Taxes Income Taxes
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:
Three-Month PeriodsSix-Month Periods
Ended June 30,Ended June 30,
2022202120222021
Federal statutory income tax rate21 %21 %21 %21 %
Income tax credits(1,150)(286)(793)(764)
State income tax, net of federal income tax impacts(38)(33)(29)(41)
Effects of ratemaking(12)(16)(10)(26)
Other, net4 — 3 — 
Effective income tax rate(1,175)%(314)%(808)%(810)%

Income tax credits relate primarily to production tax credits ("PTCs") from MidAmerican Energy'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. MidAmerican Funding recognizes its renewable electricity PTCs throughout the year based on when the credits are earned and excludes them from the annual effective tax rate that is the basis for the interim recognition of other income tax expense. 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 six-month periods ended June 30, 2022 and 2021 totaled $388 million and $297 million, respectively.

Berkshire Hathaway includes BHE and subsidiaries in its U.S. federal and Iowa state income tax returns. Consistent with established regulatory practice, MidAmerican Funding's and MidAmerican Energy's provisions for income tax have been computed on a stand-alone basis, and substantially all of their currently payable or receivable income tax is remitted to or received from BHE. MidAmerican Funding received net cash payments for income tax from BHE totaling $544 million and $560 million for the six-month periods ended June 30, 2022 and 2021. respectively.
NPC  
Schedule of Effective Income Tax Rate Reconciliation [Line Items]  
Income Taxes Income Taxes
A reconciliation of the federal statutory income tax rate to the effective income tax rate applicable to income before income tax benefit is as follows:
Three-Month PeriodsSix-Month Periods
Ended June 30,Ended June 30,
 2022202120222021
 
Federal statutory income tax rate21 %21 %21 %21 %
Effects of ratemaking(10)(11)(10)(11)
Other1 — 1 — 
Effective income tax rate12 %10 %12 %10 %

Effects of ratemaking is primarily attributable to the recognition of excess deferred income taxes related to the 2017 Tax Cuts
and Jobs Act pursuant to an order issued by the PUCN effective January 1, 2021.
Berkshire Hathaway includes BHE and its subsidiaries in its U.S. federal income tax return. Consistent with established regulatory practice, Nevada Power's provision for federal income tax has been computed on a separate return basis, and substantially all of its currently payable or receivable income tax is remitted to or received from BHE. For the six-month period ended June 30, 2022, Nevada Power received net cash payments for federal income tax from BHE totaling $21 million. For the six-month period ended June 30, 2021, Nevada Power made net cash payments for federal income tax to BHE totaling $15 million.
SPPC  
Schedule of Effective Income Tax Rate Reconciliation [Line Items]  
Income Taxes Income Taxes
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:
Three-Month PeriodsSix-Month Periods
Ended June 30,Ended June 30,
2022202120222021
Federal statutory income tax rate21 %21 %21 %21 %
Effects of ratemaking(8)(11)(7)(9)
Income tax credits— (1)— — 
Other— (3)1 (2)
Effective income tax rate13 %6 %15 %10 %

Effects of ratemaking is primarily attributable to the recognition of excess deferred income taxes related to the 2017 Tax Cuts and Jobs Act pursuant to an order issued by the PUCN effective January 1, 2020.

Berkshire Hathaway includes BHE and its subsidiaries in its U.S. federal income tax return. Consistent with established regulatory practice, Sierra Pacific's provision for federal income tax has been computed on a separate return basis, and substantially all of its currently payable or receivable income tax is remitted to or received from BHE. For the six-month periods ended June 30, 2022 and 2021, Sierra Pacific made no net cash payments for federal income tax to BHE.
EEGH  
Schedule of Effective Income Tax Rate Reconciliation [Line Items]  
Income Taxes Income Taxes
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:
Three-Month PeriodsSix-Month Periods
Ended June 30,Ended June 30,
2022202120222021
Federal statutory income tax rate21 %21 %21 %21 %
State income tax, net of federal income tax benefit3 2 4 3 
Equity interest1 1 1 1 
Effects of ratemaking— (1)(2)(1)
Noncontrolling interest(10)(12)(10)(11)
Other, net— 2 — — 
Effective income tax rate15 %13 %14 %13 %

For the period ended June 30, 2022, Eastern Energy Gas' reconciliation of the federal statutory income tax rate to the effective income tax rate is driven primarily by an absence of tax on income attributable to Cove Point's 75% noncontrolling interest.