Amount of debt to be redeemed.

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- Definition

The percentage of principal required to be repaid by the 3rd Anniversary Date in order to reduce the Base Rate Spread.

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No definition available.

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The maturity period of long-term debt.

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No definition available.

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Represents the minimum variable interest rate of the Base Rate in accordance with the debt instrument agreement.

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No definition available.

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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 10
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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.

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No definition available.

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Amount of interest expense incurred on a debt or other obligation to related party.

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No definition available.

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- Definition

Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments, excluding current portion.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- 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 rate subject to change from time to time.

+ References

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- Definition

Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Carrying value as of the balance sheet date of the portion of long-term notes having the highest claim on the assets of the issuer in case of bankruptcy or liquidation, due within one year or the normal operating cycle, if longer. Senior note holders are paid off in full before any payments are made to debt holders having a lesser priority of repayment.

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BHE Debt (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
BHE Debt (Details) - USD ($) $ in Millions	Feb. 29, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
BHE Debt [Line Items]
Par value		$ 38,133
Noncurrent senior debt		7,814	$ 7,810
BHE junior subordinated debentures		2,944	3,794
Interest expense to Berkshire Hathaway		104	78	$ 3
Senior Notes [Member] \| Berkshire Hathaway Energy [Member]
BHE Debt [Line Items]
Par value		7,875
Total BHE Senior Debt		7,814	7,810
Current senior debt		0	0
Noncurrent senior debt		7,814	7,810
Senior Notes [Member] \| Berkshire Hathaway Energy [Member] \| 1.10%, Senior Notes, due 2017 [Member]
BHE Debt [Line Items]
Par value		400
Total BHE Senior Debt		$ 399	$ 399
Debt Instrument, Interest Rate, Stated Percentage		1.10%	1.10%
Senior Notes [Member] \| Berkshire Hathaway Energy [Member] \| 5.75%, Senior Notes, due 2018 [Member]
BHE Debt [Line Items]
Par value		$ 650
Total BHE Senior Debt		$ 648	$ 648
Debt Instrument, Interest Rate, Stated Percentage		5.75%	5.75%
Senior Notes [Member] \| Berkshire Hathaway Energy [Member] \| 2.00%, Senior Notes, due 2018 [Member]
BHE Debt [Line Items]
Par value		$ 350
Total BHE Senior Debt		$ 348	$ 348
Debt Instrument, Interest Rate, Stated Percentage		2.00%	2.00%
Senior Notes [Member] \| Berkshire Hathaway Energy [Member] \| 2.40% Senior Notes, due 2020 [Member]
BHE Debt [Line Items]
Par value		$ 350
Total BHE Senior Debt		$ 348	$ 348
Debt Instrument, Interest Rate, Stated Percentage		2.40%	2.40%
Senior Notes [Member] \| Berkshire Hathaway Energy [Member] \| 3.75%, Senior Notes, due 2023 [Member]
BHE Debt [Line Items]
Par value		$ 500
Total BHE Senior Debt		$ 497	$ 497
Debt Instrument, Interest Rate, Stated Percentage		3.75%	3.75%
Senior Notes [Member] \| Berkshire Hathaway Energy [Member] \| 3.50% Senior Notes, due 2025 [Member]
BHE Debt [Line Items]
Par value		$ 400
Total BHE Senior Debt		$ 397	$ 397
Debt Instrument, Interest Rate, Stated Percentage		3.50%	3.50%
Senior Notes [Member] \| Berkshire Hathaway Energy [Member] \| 8.48%, Senior Notes, due 2028 [Member]
BHE Debt [Line Items]
Par value		$ 475
Total BHE Senior Debt		$ 477	$ 477
Debt Instrument, Interest Rate, Stated Percentage		8.48%	8.48%
Senior Notes [Member] \| Berkshire Hathaway Energy [Member] \| 6.125%, Senior Bonds, due 2036 [Member]
BHE Debt [Line Items]
Par value		$ 1,700
Total BHE Senior Debt		$ 1,690	$ 1,688
Debt Instrument, Interest Rate, Stated Percentage		6.125%	6.125%
Senior Notes [Member] \| Berkshire Hathaway Energy [Member] \| 5.95%, Senior Bonds, due 2037 [Member]
BHE Debt [Line Items]
Par value		$ 550
Total BHE Senior Debt		$ 547	$ 547
Debt Instrument, Interest Rate, Stated Percentage		5.95%	5.95%
Senior Notes [Member] \| Berkshire Hathaway Energy [Member] \| 6.50%, Senior Bonds, due 2037 [Member]
BHE Debt [Line Items]
Par value		$ 1,000
Total BHE Senior Debt		$ 987	$ 986
Debt Instrument, Interest Rate, Stated Percentage		6.50%	6.50%
Senior Notes [Member] \| Berkshire Hathaway Energy [Member] \| 5.15%, Senior Notes, due 2043 [Member]
BHE Debt [Line Items]
Par value		$ 750
Total BHE Senior Debt		$ 739	$ 738
Debt Instrument, Interest Rate, Stated Percentage		5.15%	5.15%
Senior Notes [Member] \| Berkshire Hathaway Energy [Member] \| 4.50% Senior Notes, due 2045 [Member]
BHE Debt [Line Items]
Par value		$ 750
Total BHE Senior Debt		$ 737	$ 737
Debt Instrument, Interest Rate, Stated Percentage		4.50%	4.50%
Junior Subordinated Debt [Member] \| Berkshire Hathaway Energy [Member]
BHE Debt [Line Items]
Par value		$ 2,944
BHE junior subordinated debentures		$ 2,944	$ 3,794
BHE junior subordinated debentures Maturity Period		30 years
Long-Term Debt, Variable Interest Rate, Base Rate Floor		1.00%
Base Rate, Principal Repayment Trigger		50.00%
Junior Subordinated Debt [Member] \| Berkshire Hathaway Energy [Member] \| BHE Junior Subordinated Debentures, due 2043 [Member]
BHE Debt [Line Items]
Par value		$ 1,444
BHE junior subordinated debentures		$ 1,444	$ 2,294
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate		3.00%	3.00%
Junior Subordinated Debt [Member] \| Berkshire Hathaway Energy [Member] \| BHE Junior Subordinated Debentures, due 2044 [Member]
BHE Debt [Line Items]
Par value		$ 1,500
BHE junior subordinated debentures		$ 1,500	$ 1,500
Basis Point Spread, Up To 3rd Anniversary Date [Member] \| Junior Subordinated Debt [Member] \| Berkshire Hathaway Energy [Member] \| BHE Junior Subordinated Debentures, due 2043 [Member]
BHE Debt [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate		2.00%	2.00%
Basis Point Spread, 3rd Anniversary up to 7th Anniversary Date [Member] \| Junior Subordinated Debt [Member] \| Berkshire Hathaway Energy [Member] \| BHE Junior Subordinated Debentures, due 2043 [Member]
BHE Debt [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate		3.00%	3.00%
Basis Point Spread, If 50% of principal is paid by 3rd Anniversary Date [Member] \| Junior Subordinated Debt [Member] \| Berkshire Hathaway Energy [Member] \| BHE Junior Subordinated Debentures, due 2043 [Member]
BHE Debt [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate		2.00%	2.00%
Basis Point Spread, 7th Anniversary Date Until Maturity Date [Member] \| Junior Subordinated Debt [Member] \| Berkshire Hathaway Energy [Member] \| BHE Junior Subordinated Debentures, due 2043 [Member]
BHE Debt [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate		3.75%	3.75%
Subsequent Event [Member] \| Junior Subordinated Debt [Member] \| Berkshire Hathaway Energy [Member] \| 5.15%, Senior Notes, due 2043 [Member]
BHE Debt [Line Items]
Amount to be redeemed	$ 500