Short-Term Debt and Credit Faciliites (Details) $ in Millions		Dec. 31, 2020 USD ($)	Dec. 31, 2020 CAD ($)	Dec. 31, 2019 USD ($)
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	[1]	$ 11,030,000,000		$ 9,412,000,000
Line of Credit Facility, Amounts Supported	[1]	(590,000,000)		(629,000,000)
Short-term Debt	[1]	(2,286,000,000)		(3,214,000,000)
Berkshire Hathaway Energy [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		3,500,000,000		3,500,000,000
Line of Credit Facility, Amounts Supported		0		0
Short-term Debt		$ 0		$ (1,590,000,000)
Berkshire Hathaway Energy [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Debt, Weighted Average Interest Rate				1.91%
Debt To Capitalization Ratio		0.70	0.70
PacifiCorp [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 1,200,000,000		$ 1,200,000,000
Line of Credit Facility, Amounts Supported		(218,000,000)		(256,000,000)
Short-term Debt		$ (93,000,000)		$ (130,000,000)
PacifiCorp [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Debt, Weighted Average Interest Rate		0.16%	0.16%	2.05%
Debt To Capitalization Ratio		0.65	0.65
MidAmerican Energy Company and Subsidiaries [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 1,505,000,000		$ 1,305,000,000
Line of Credit Facility, Amounts Supported		$ (370,000,000)		(370,000,000)
MidAmerican Energy Company and Subsidiaries [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Debt To Capitalization Ratio		0.65	0.65
MidAmerican Funding [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 1,509,000,000		1,309,000,000
Line of Credit Facility, Amounts Supported		(370,000,000)		(370,000,000)
Short-term Debt		$ 0		0
Nevada Power Company [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Debt To Capitalization Ratio		0.65	0.65
Sierra Pacific Power Company [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 250,000,000		250,000,000
Short-term Debt		$ (45,000,000)		0
Sierra Pacific Power Company [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Debt, Weighted Average Interest Rate		0.90%	0.90%
Northern Powergrid Holdings [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 228,000,000		199,000,000
Line of Credit Facility, Amounts Supported		0		0
Short-term Debt		$ (23,000,000)		$ 0
AltaLink, L.P. [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Debt, Weighted Average Interest Rate		0.36%	0.36%	2.16%
Debt To Capitalization Ratio		0.75	0.75
Short-term Debt		$ (113,000,000)		$ (192,000,000)
ALP Investments [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Debt, Weighted Average Interest Rate		1.47%	1.47%	3.08%
Debt To Capitalization Ratio		0.8	0.8
Short-term Debt		$ (112,000,000)		$ (19,000,000)
EBITDA to interest expense ratio		2.25	2.25
ALP Investments [Member] | Letter of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			$ 10
BHE Renewables [Member]
Line of Credit Facility [Line Items]
Letters of Credit Outstanding, Amount		$ 305,000,000		373,000,000
BHE Renewables [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Letters of Credit Outstanding, Amount		$ 105,000,000		107,000,000
Unsecured credit facility, £150 million, expiring April 2020 [Member] | Northern Powergrid Holdings [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Debt to regulated asset value		0.8	0.8
Unsecured credit facility, $400 million, expiring November 2019 [Member] | MidAmerican Energy Company and Subsidiaries [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity				$ 400,000,000
Unsecured credit facility, $600 million, expiring September 2022 [Member] | HomeServices [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 600,000,000
Debt, Weighted Average Interest Rate		1.15%	1.15%	3.29%
Short-term Debt		$ (100,000,000)		$ (318,000,000)
Secured credit facility, C$500 million, expiring December 2023 [Member] | AltaLink, L.P. [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			$ 500
Secured credit facility, C$75 million, expiring December 2023 [Member] | AltaLink, L.P. [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			75
Unsecured credit facility, C$300 million, expiring December 2023 [Member] | ALP Investments [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			$ 300
Line of Credit [Member] | Nevada Power Company [Member]
Line of Credit Facility [Line Items]
Short-term Debt		0		0
Line of Credit [Member] | Secured credit facility, $400 million, expiring June 2022 [Member] | Nevada Power Company [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		400,000,000
Tax exempt bond obligations and commodity contract collateral requirement [Member] | PacifiCorp [Member]
Line of Credit Facility [Line Items]
Letters of Credit Outstanding, Amount		11,000,000		13,000,000
Certain transactions required by third parties [Member] | PacifiCorp [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Amounts Supported		$ (11,000,000)		$ (13,000,000)

[1] The table does not include unused credit facilities and letters of credit for investments that are accounted for under the equity method.