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

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

+ References

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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

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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+ Details

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

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

+ Details

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

- Definition

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation.

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+ Details

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

- 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.

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+ Details

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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

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Long-term Debt - EEGH (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
Total long-term debt	51,635		$ 49,762
Current portion of long-term debt	3,201		1,265
Subsidiary debt
Debt Instrument [Line Items]
Subsidiary debt	37,539		36,659
Par value	37,501
Subsidiary debt \| EEGH
Debt Instrument [Line Items]
Subsidiary debt	3,892		3,906
Par value	3,918
Subsidiary debt \| EGTS
Debt Instrument [Line Items]
Subsidiary debt				$ 1,600
2.875% Senior Notes, due 2023 \| Subsidiary debt \| EEGH
Debt Instrument [Line Items]
Subsidiary debt	$ 250		250
Stated rate	2.875%	2.875%
Par value	$ 250
3.55% Senior Notes, due 2023 \| Subsidiary debt \| EEGH
Debt Instrument [Line Items]
Subsidiary debt	$ 399		399
Stated rate	3.55%	3.55%
Par value	$ 400
2.50% Senior Notes, due 2024 \| Subsidiary debt \| EEGH
Debt Instrument [Line Items]
Subsidiary debt	$ 598		597
Stated rate	2.50%	2.50%
Par value	$ 600
3.60% Senior Notes, due 2024 \| Subsidiary debt \| EEGH
Debt Instrument [Line Items]
Subsidiary debt	$ 338		338
Stated rate	3.60%	3.60%
Par value	$ 339
3.32% Senior Notes, due 2026 (€250) \| Subsidiary debt \| EEGH
Debt Instrument [Line Items]
Subsidiary debt	$ 267		$ 283
Stated rate	3.32%	3.32%
Par value	$ 268	€ 250
Interest rate on derivatives	100.00%	100.00%
Fixed interest rate	3.32%	3.32%	3.32%
Outstanding principal amount including swap	$ 280		$ 280
3.00% Senior Notes, due 2029 \| Subsidiary debt \| EEGH
Debt Instrument [Line Items]
Subsidiary debt	$ 173		173
Stated rate	3.00%	3.00%
Par value	$ 174
3.80% Senior Notes, due 2031 \| Subsidiary debt \| EEGH
Debt Instrument [Line Items]
Subsidiary debt	$ 150		150
Stated rate	3.80%	3.80%
Par value	$ 150
4.80% Senior Notes, due 2043 \| Subsidiary debt \| EEGH
Debt Instrument [Line Items]
Subsidiary debt	$ 53		53
Stated rate	4.80%	4.80%
Par value	$ 54
4.60% Senior Notes, due 2044 \| Subsidiary debt \| EEGH
Debt Instrument [Line Items]
Subsidiary debt	$ 56		56
Stated rate	4.60%	4.60%
Par value	$ 56
3.90% Senior Notes, due 2049 \| Subsidiary debt \| EEGH
Debt Instrument [Line Items]
Subsidiary debt	$ 26		26
Stated rate	3.90%	3.90%
Par value	$ 27
3.60% Senior Notes, due 2024 \| Subsidiary debt \| EGTS
Debt Instrument [Line Items]
Subsidiary debt	$ 110		110
Stated rate	3.60%	3.60%
Par value	$ 111
3.00% Senior Notes, due 2029 \| Subsidiary debt \| EGTS
Debt Instrument [Line Items]
Subsidiary debt	$ 422		422
Stated rate	3.00%	3.00%
Par value	$ 426
4.80% Senior Notes, due 2043 \| Subsidiary debt \| EGTS
Debt Instrument [Line Items]
Subsidiary debt	$ 342		341
Stated rate	4.80%	4.80%
Par value	$ 346
4.60% Senior Notes, due 2044 \| Subsidiary debt \| EGTS
Debt Instrument [Line Items]
Subsidiary debt	$ 437		437
Stated rate	4.60%	4.60%
Par value	$ 444
3.90% Senior Notes, due 2049 \| Subsidiary debt \| EGTS
Debt Instrument [Line Items]
Subsidiary debt	$ 271		271
Stated rate	3.90%	3.90%
Par value	$ 273
EEGH
Debt Instrument [Line Items]
Par value	3,918
Total long-term debt	3,892		3,906
Current portion of long-term debt	649		0
Long-term debt	3,243		3,906
EEGH \| EEGH
Debt Instrument [Line Items]
Par value	3,918
Total long-term debt	$ 3,892		3,906
EEGH \| 2.875% Senior Notes, due 2023 \| EEGH
Debt Instrument [Line Items]
Stated rate	2.875%	2.875%
Par value	$ 250
Total long-term debt	$ 250		250
EEGH \| 3.55% Senior Notes, due 2023 \| EEGH
Debt Instrument [Line Items]
Stated rate	3.55%	3.55%
Par value	$ 400
Total long-term debt	$ 399		399
EEGH \| 2.50% Senior Notes, due 2024 \| EEGH
Debt Instrument [Line Items]
Stated rate	2.50%	2.50%
Par value	$ 600
Total long-term debt	$ 598		597
EEGH \| 3.60% Senior Notes, due 2024 \| EEGH
Debt Instrument [Line Items]
Stated rate	3.60%	3.60%
Par value	$ 339
Total long-term debt	$ 338		338
EEGH \| 3.32% Senior Notes, due 2026 (€250) \| EEGH
Debt Instrument [Line Items]
Stated rate	3.32%	3.32%
Par value	$ 268	€ 250
Total long-term debt	$ 267		283
EEGH \| 3.00% Senior Notes, due 2029 \| EEGH
Debt Instrument [Line Items]
Stated rate	3.00%	3.00%
Par value	$ 174
Total long-term debt	$ 173		173
EEGH \| 3.80% Senior Notes, due 2031 \| EEGH
Debt Instrument [Line Items]
Stated rate	3.80%	3.80%
Par value	$ 150
Total long-term debt	$ 150		150
EEGH \| 4.80% Senior Notes, due 2043 \| EEGH
Debt Instrument [Line Items]
Stated rate	4.80%	4.80%
Par value	$ 54
Total long-term debt	$ 53		53
EEGH \| 4.60% Senior Notes, due 2044 \| EEGH
Debt Instrument [Line Items]
Stated rate	4.60%	4.60%
Par value	$ 56
Total long-term debt	$ 56		56
EEGH \| 3.90% Senior Notes, due 2049 \| EEGH
Debt Instrument [Line Items]
Stated rate	3.90%	3.90%
Par value	$ 27
Total long-term debt	26		26
EGTS
Debt Instrument [Line Items]
Par value	1,600
Total long-term debt	1,582		1,581
Long-term debt	$ 1,582		$ 1,581