Debt Instrument, Outstanding Principal Amount Including Swap Amount

No definition available.

Name:	bhe_DebtInstrumentOutstandingPrincipalAmountIncludingSwapAmount
Namespace Prefix:	bhe_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Other Long-term Debt, Fair Value Adjustments

+ References

No definition available.

+ Details

Name:	bhe_OtherLongTermDebtFairValueAdjustments
Namespace Prefix:	bhe_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Other Long-term Debt, Net of Purchase Accounting Adjustment

+ References

No definition available.

+ Details

Name:	bhe_OtherLongTermDebtNetOfPurchaseAccountingAdjustment
Namespace Prefix:	bhe_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
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-Publisher FASB
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+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

+ References

+ Details

Name:	us-gaap_LongTermDebtPercentageBearingFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of long-term debt classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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+ Details

Name:	us-gaap_OtherLongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage of an entity's outstanding debt that is designated as a hedged item in cash flow, fair value, or net investment hedge.

+ References

No definition available.

+ Details

Name:	us-gaap_PercentageOfDebtHedgedByInterestRateDerivatives
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

Subsidiary Debt - BHE Pipeline Group (Details) € in Millions, $ in Millions	Dec. 31, 2022 USD ($)	Dec. 31, 2022 EUR (€)	Dec. 31, 2021 USD ($)	Jun. 30, 2021 USD ($)
Debt Instrument [Line Items]
Par value	$ 51,702
Subsidiary debt
Debt Instrument [Line Items]
Par value	37,501
Subsidiary debt	37,539		$ 36,659
BHE Pipeline Group \| Subsidiary debt
Debt Instrument [Line Items]
Par value	5,518
Subsidiary debt	5,849		5,924
Eastern Energy Gas \| Subsidiary debt
Debt Instrument [Line Items]
Par value	3,918
Subsidiary debt	3,892		3,906
Fair value adjustments	368		430
Debt, net of fair value adjustments	$ 4,260		4,336
Eastern Energy Gas \| Subsidiary debt \| 2.875% Senior Notes, due 2023
Debt Instrument [Line Items]
Stated rate	2.875%	2.875%
Par value	$ 250
Subsidiary debt	$ 250		250
Eastern Energy Gas \| Subsidiary debt \| 3.55% Senior Notes, due 2023
Debt Instrument [Line Items]
Stated rate	3.55%	3.55%
Par value	$ 400
Subsidiary debt	$ 399		399
Eastern Energy Gas \| Subsidiary debt \| 2.50% Senior Notes, due 2024
Debt Instrument [Line Items]
Stated rate	2.50%	2.50%
Par value	$ 600
Subsidiary debt	$ 598		597
Eastern Energy Gas \| Subsidiary debt \| 3.60% Senior Notes, due 2024
Debt Instrument [Line Items]
Stated rate	3.60%	3.60%
Par value	$ 339
Subsidiary debt	$ 338		338
Eastern Energy Gas \| Subsidiary debt \| 3.32% Senior Notes, due 2026 (€250)
Debt Instrument [Line Items]
Stated rate	3.32%	3.32%
Par value	$ 268	€ 250
Subsidiary debt	$ 267		$ 283
Interest rate on derivatives	100.00%	100.00%
Fixed interest rate	3.32%	3.32%	3.32%
Outstanding principal amount including swap	$ 280		$ 280
Eastern Energy Gas \| Subsidiary debt \| 3.00% Senior Notes, due 2029
Debt Instrument [Line Items]
Stated rate	3.00%	3.00%
Par value	$ 174
Subsidiary debt	$ 173		173
Eastern Energy Gas \| Subsidiary debt \| 3.80% Senior Notes, due 2031
Debt Instrument [Line Items]
Stated rate	3.80%	3.80%
Par value	$ 150
Subsidiary debt	$ 150		150
Eastern Energy Gas \| Subsidiary debt \| 4.80% Senior Notes, due 2043
Debt Instrument [Line Items]
Stated rate	4.80%	4.80%
Par value	$ 54
Subsidiary debt	$ 53		53
Eastern Energy Gas \| Subsidiary debt \| 4.60% Senior Notes, due 2044
Debt Instrument [Line Items]
Stated rate	4.60%	4.60%
Par value	$ 56
Subsidiary debt	$ 56		56
Eastern Energy Gas \| Subsidiary debt \| 3.90% Senior Notes, due 2049
Debt Instrument [Line Items]
Stated rate	3.90%	3.90%
Par value	$ 27
Subsidiary debt	$ 26		26
Eastern Energy Gas \| Subsidiary debt \| EEGH 3.32% Senior Notes, due 2026, denominated in euros
Debt Instrument [Line Items]
Par value \| €		€ 250
Fixed interest rate	1.45%	1.45%
EGTS \| Subsidiary debt
Debt Instrument [Line Items]
Subsidiary debt				$ 1,600
EGTS \| Subsidiary debt \| 3.60% Senior Notes, due 2024
Debt Instrument [Line Items]
Stated rate	3.60%	3.60%
Par value	$ 111
Subsidiary debt	$ 110		110
EGTS \| Subsidiary debt \| 3.00% Senior Notes, due 2029
Debt Instrument [Line Items]
Stated rate	3.00%	3.00%
Par value	$ 426
Subsidiary debt	$ 422		422
EGTS \| Subsidiary debt \| 4.80% Senior Notes, due 2043
Debt Instrument [Line Items]
Stated rate	4.80%	4.80%
Par value	$ 346
Subsidiary debt	$ 342		341
EGTS \| Subsidiary debt \| 4.60% Senior Notes, due 2044
Debt Instrument [Line Items]
Stated rate	4.60%	4.60%
Par value	$ 444
Subsidiary debt	$ 437		437
EGTS \| Subsidiary debt \| 3.90% Senior Notes, due 2049
Debt Instrument [Line Items]
Stated rate	3.90%	3.90%
Par value	$ 273
Subsidiary debt	271		271
Northern Natural Gas \| Subsidiary debt
Debt Instrument [Line Items]
Par value	1,600
Subsidiary debt	$ 1,589		1,588
Northern Natural Gas \| Subsidiary debt \| 5.80% Senior Bonds, due 2037
Debt Instrument [Line Items]
Stated rate	5.80%	5.80%
Par value	$ 150
Subsidiary debt	$ 149		149
Northern Natural Gas \| Subsidiary debt \| 4.10% Senior Bonds, due 2042
Debt Instrument [Line Items]
Stated rate	4.10%	4.10%
Par value	$ 250
Subsidiary debt	$ 248		248
Northern Natural Gas \| Subsidiary debt \| 4.30% Senior Bonds, due 2049
Debt Instrument [Line Items]
Stated rate	4.30%	4.30%
Par value	$ 650
Subsidiary debt	$ 652		651
Northern Natural Gas \| Subsidiary debt \| 3.40% Senior Bonds, due 2051
Debt Instrument [Line Items]
Stated rate	3.40%	3.40%
Par value	$ 550
Subsidiary debt	$ 540		$ 540