Nevada Power (NVP) 10-Q 10 Aug 20 2020 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2020	Aug. 06, 2020
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Entity Registrant Name	BERKSHIRE HATHAWAY ENERGY CO
Entity Central Index Key	0001081316
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		76,368,874
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Current Reporting Status	Yes
Entity Shell Company	false
PacifiCorp [Member]
Document Information [Line Items]
Entity Registrant Name	PACIFICORP /OR/
Entity Central Index Key	0000075594
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		357,060,915
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Current Reporting Status	Yes
Entity Shell Company	false
MidAmerican Funding, LLC and Subsidiaries [Domain]
Document Information [Line Items]
Entity Registrant Name	MIDAMERICAN FUNDING, LLC
Entity Central Index Key	0001098296
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Current Reporting Status	Yes
Entity Shell Company	false
MidAmerican Energy Company [Member]
Document Information [Line Items]
Entity Registrant Name	MIDAMERICAN ENERGY COMPANY
Entity Central Index Key	0000928576
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		70,980,203
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Current Reporting Status	Yes
Entity Shell Company	false
Nevada Power Company [Member]
Document Information [Line Items]
Entity Registrant Name	Nevada Power Company
Entity Central Index Key	0000071180
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		1,000
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Current Reporting Status	Yes
Entity Shell Company	false
Sierra Pacific Power Company [Member]
Document Information [Line Items]
Entity Registrant Name	Sierra Pacific Power Company
Entity Central Index Key	0000090144
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		1,000
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Current Reporting Status	Yes
Entity Shell Company	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 1,815	$ 1,040
Restricted cash and cash equivalents	237	212
Trade receivables, net	1,904	1,910
Income Taxes Receivable, Current	503	0
Inventories	1,002	873
Mortgage loans held-for-sale	1,617	1,039
Assets Held-in-trust, Current	435	211
Other current assets	715	628
Total current assets	8,228	5,913
Property, plant and equipment, net	73,825	73,305
Goodwill	9,612	9,722
Regulatory assets	2,831	2,766
Investments and restricted cash and cash equivalents and investments	7,874	6,255
Other assets	2,047	2,090
Total assets	104,417	100,051
Current liabilities:
Accounts payable	1,656	1,839
Accrued interest	529	493
Accrued property, income and other taxes	456	537
Accrued employee expenses	330	285
Short-term debt	2,289	3,214
Current portion of long-term debt	1,872	2,539
Other current liabilities	1,842	1,350
Total current liabilities	8,974	10,257
BHE senior debt	11,011	8,231
BHE junior subordinated debentures	100	100
Subsidiary debt	29,922	28,483
Regulatory liabilities	6,965	7,100
Deferred Income Tax Liabilities, Net	10,002	9,653
Other long-term liabilities	3,658	3,649
Total liabilities	70,632	67,473
Commitments and contingencies
BHE shareholders' equity:
Common stock - 115 shares authorized, no par value, 76 and 77 shares issued and outstanding	0	0
Additional paid-in capital	6,377	6,389
Long-term income tax receivable	(530)	(530)
Retained earnings	29,962	28,296
Accumulated other comprehensive loss, net	(2,125)	(1,706)
Total BHE shareholders' equity	33,684	32,449
Noncontrolling interests	101	129
Total equity	33,785	32,578
Total liabilities and equity	$ 104,417	$ 100,051

Consolidated Balance Sheets - P

Consolidated Balance Sheets - PacifiCorp - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 1,815	$ 1,040
Inventories	1,002	873
Other current assets	715	628
Total current assets	8,228	5,913
Regulatory assets	2,831	2,766
Other assets	2,047	2,090
Total assets	104,417	100,051
Current liabilities:
Accounts payable	1,656	1,839
Accrued interest	529	493
Accrued property, income and other taxes	456	537
Accrued employee expenses	330	285
Short-term debt	2,289	3,214
Current portion of long-term debt	1,872	2,539
Other current liabilities	1,842	1,350
Total current liabilities	8,974	10,257
Regulatory liabilities	6,965	7,100
Deferred Income Tax Liabilities, Net	10,002	9,653
Other long-term liabilities	3,658	3,649
Total liabilities	70,632	67,473
Equity:
Common stock	0	0
Additional paid-in capital	6,377	6,389
Retained earnings	29,962	28,296
Accumulated other comprehensive loss, net	(2,125)	(1,706)
Total BHE shareholders' equity	33,684	32,449
Total liabilities and equity	104,417	100,051
PacifiCorp [Member]
Current assets:
Cash and cash equivalents	711	30
Trade receivables, net	615	644
Other Receivables, Net, Current	37	70
Inventories	474	394
Other current assets	170	152
Total current assets	2,007	1,290
Property, plant and equipment, net	21,553	20,973
Regulatory assets	1,052	1,060
Other assets	355	374
Total assets	24,967	23,697
Current liabilities:
Accounts payable	685	679
Accrued interest	126	116
Accrued property, income and other taxes	131	96
Accrued employee expenses	103	75
Short-term debt	0	130
Current portion of long-term debt	438	38
Other current liabilities	261	226
Total current liabilities	1,744	1,360
Long-term debt	8,210	7,620
Regulatory liabilities	2,854	2,913
Deferred Income Tax Liabilities, Net	2,593	2,563
Other long-term liabilities	786	804
Total liabilities	16,187	15,260
Equity:
Preferred Stock, Value, Issued	2	2
Common stock	0	0
Additional paid-in capital	4,479	4,479
Retained earnings	4,314	3,972
Accumulated other comprehensive loss, net	(15)	(16)
Total BHE shareholders' equity	8,780	8,437
Total liabilities and equity	$ 24,967	$ 23,697

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - PacifiCorp - $ / shares shares in Millions	Jun. 30, 2020	Dec. 31, 2019
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	0	0
Common stock, shares issued	0	0
Common stock, shares outstanding	0	0
PacifiCorp [Member]
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	750	750
Common stock, shares issued	357	357
Common stock, shares outstanding	357	357

Balance Sheets - MEC

Balance Sheets - MEC - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 1,815	$ 1,040
Income Taxes Receivable, Current	503	0
Inventories	1,002	873
Other current assets	715	628
Total current assets	8,228	5,913
Regulatory assets	2,831	2,766
Investments and restricted cash and cash equivalents and investments	7,874	6,255
Other assets	2,047	2,090
Total assets	104,417	100,051
Current liabilities:
Accounts payable	1,656	1,839
Accrued interest	529	493
Accrued property, income and other taxes	456	537
Short-term debt	2,289	3,214
Current portion of long-term debt	1,872	2,539
Other current liabilities	1,842	1,350
Total current liabilities	8,974	10,257
Regulatory liabilities	6,965	7,100
Deferred Income Tax Liabilities, Net	10,002	9,653
Other long-term liabilities	3,658	3,649
Total liabilities	70,632	67,473
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	6,377	6,389
Retained earnings	29,962	28,296
Accumulated other comprehensive loss, net	(2,125)	(1,706)
Total BHE shareholders' equity	33,684	32,449
Total liabilities and equity	104,417	100,051
MidAmerican Energy Company [Member]
Current assets:
Cash and cash equivalents	5	287
Trade receivables, net	291	291
Income Taxes Receivable, Current	331	0
Inventories	257	226
Other current assets	77	90
Total current assets	961	894
Property, plant and equipment, net	18,756	18,375
Regulatory assets	315	289
Investments and restricted cash and cash equivalents and investments	817	818
Other assets	199	188
Total assets	21,048	20,564
Current liabilities:
Accounts payable	405	519
Accrued interest	78	78
Accrued property, income and other taxes	148	225
Short-term debt	195	0
Other current liabilities	189	219
Total current liabilities	1,015	1,041
Long-term debt	7,209	7,208
Regulatory liabilities	1,353	1,406
Deferred Income Tax Liabilities, Net	2,779	2,626
Asset retirement obligations	759	704
Other long-term liabilities	333	339
Total liabilities	13,448	13,324
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	561	561
Retained earnings	7,039	6,679
Total BHE shareholders' equity	7,600	7,240
Total liabilities and equity	$ 21,048	$ 20,564

Consolidated Balance Sheets Bal

Consolidated Balance Sheets Balance Sheets (Parenthetical) - MEC - $ / shares shares in Millions	Jun. 30, 2020	Dec. 31, 2019
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	0	0
Common stock, shares issued	0	0
Common stock, shares outstanding	0	0
MidAmerican Energy Company [Member]
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	350	350
Common stock, shares issued	71	71
Common stock, shares outstanding	71	71

Consolidated Balance Sheets - M

Consolidated Balance Sheets - MidAmerican Funding - USD ($) $ in Millions		Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents		$ 1,815	$ 1,040
Income Taxes Receivable, Current		503	0
Inventories		1,002	873
Other current assets		715	628
Total current assets		8,228	5,913
Property, plant and equipment, net		73,825	73,305
Goodwill		9,612	9,722
Regulatory assets		2,831	2,766
Investments and restricted cash and cash equivalents and investments		7,874	6,255
Other assets		2,047	2,090
Total assets		104,417	100,051
Current liabilities:
Accounts payable		1,656	1,839
Accrued interest		529	493
Accrued property, income and other taxes		456	537
Short-term debt		2,289	3,214
Current portion of long-term debt		1,872	2,539
Other current liabilities		1,842	1,350
Total current liabilities		8,974	10,257
Regulatory liabilities		6,965	7,100
Deferred Income Tax Liabilities, Net		10,002	9,653
Other long-term liabilities		3,658	3,649
Total liabilities		70,632	67,473
Commitments and contingencies
Equity:
Additional paid-in capital		6,377	6,389
Retained earnings		29,962	28,296
Accumulated other comprehensive loss, net		(2,125)	(1,706)
Total member's equity		33,684	32,449
Total liabilities and equity		104,417	100,051
MidAmerican Funding, LLC and Subsidiaries [Domain]
Current assets:
Cash and cash equivalents		8	288
Trade receivables, net		291	291
Income Taxes Receivable, Current		335	0
Inventories		257	226
Other current assets		77	91
Total current assets		968	896
Property, plant and equipment, net		18,756	18,377
Goodwill		1,270	1,270
Regulatory assets		315	289
Investments and restricted cash and cash equivalents and investments		820	820
Other assets		198	188
Total assets	[1]	22,327	21,840
Current liabilities:
Accounts payable		405	520
Accrued interest		83	84
Accrued property, income and other taxes		148	226
Notes Payable, Related Parties, Current		176	171
Short-term debt		195	0
Other current liabilities		189	219
Total current liabilities		1,196	1,220
Long-term debt		7,449	7,448
Regulatory liabilities		1,353	1,406
Deferred Income Tax Liabilities, Net		2,777	2,621
Asset retirement obligations		759	704
Other long-term liabilities		334	340
Total liabilities		13,868	13,739
Commitments and contingencies
Equity:
Additional paid-in capital		1,679	1,679
Retained earnings		6,780	6,422
Total member's equity		8,459	8,101
Total liabilities and equity		$ 22,327	$ 21,840
[1]	(1)Consists principally of cash and cash equivalents not included in either the regulated electric or regulated natural gas segments.

Consolidated Balance Sheets - N

Consolidated Balance Sheets - NPC - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 1,815	$ 1,040
Inventories	1,002	873
Other current assets	715	628
Total current assets	8,228	5,913
Regulatory assets	2,831	2,766
Other assets	2,047	2,090
Total assets	104,417	100,051
Current liabilities:
Accounts payable	1,656	1,839
Accrued interest	529	493
Accrued property, income and other taxes	456	537
Current portion of long-term debt	1,872	2,539
Other current liabilities	1,842	1,350
Total current liabilities	8,974	10,257
Regulatory liabilities	6,965	7,100
Deferred Income Tax Liabilities, Net	10,002	9,653
Other long-term liabilities	3,658	3,649
Total liabilities	70,632	67,473
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	6,377	6,389
Retained earnings	29,962	28,296
Accumulated other comprehensive loss, net	(2,125)	(1,706)
Total BHE shareholders' equity	33,684	32,449
Total liabilities and equity	104,417	100,051
Nevada Power Company [Member]
Current assets:
Cash and cash equivalents	16	15
Trade receivables, net	281	215
Inventories	60	62
Prepaid Expense, Current	53	42
Other current assets	27	30
Total current assets	437	364
Property, plant and equipment, net	6,649	6,538
Finance Lease, Right-of-Use Asset	433	441
Regulatory assets	812	800
Other assets	64	59
Total assets	8,395	8,202
Current liabilities:
Accounts payable	187	194
Accrued interest	33	30
Accrued property, income and other taxes	47	25
Current portion of long-term debt	0	575
Regulatory liabilities	93	93
Customer deposits	50	62
Derivative Liability, Current	37	5
Other current liabilities	66	53
Total current liabilities	513	1,037
Long-term debt	2,495	1,776
Finance Lease, Liability, Noncurrent	426	430
Regulatory liabilities	1,176	1,163
Deferred Income Tax Liabilities, Net	708	714
Other long-term liabilities	285	285
Total liabilities	5,603	5,405
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	2,308	2,308
Retained earnings	488	493
Accumulated other comprehensive loss, net	(4)	(4)
Total BHE shareholders' equity	2,792	2,797
Total liabilities and equity	$ 8,395	$ 8,202

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Parenthetical) - NPC - $ / shares	Jun. 30, 2020	Dec. 31, 2019
Common stock, shares authorized	0	0
Common stock, shares issued	0	0
Common stock, shares outstanding	0	0
Nevada Power Company [Member]
Common Stock, Par or Stated Value Per Share	$ 1	$ 1
Common stock, shares authorized	1,000	1,000
Common stock, shares issued	1,000	1,000
Common stock, shares outstanding	1,000	1,000

Consolidated Balance Sheets - S

Consolidated Balance Sheets - SPPC - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 1,815	$ 1,040
Income Taxes Receivable, Current	503	0
Inventories	1,002	873
Other current assets	715	628
Total current assets	8,228	5,913
Regulatory assets	2,831	2,766
Other assets	2,047	2,090
Total assets	104,417	100,051
Current liabilities:
Accounts payable	1,656	1,839
Accrued interest	529	493
Accrued property, income and other taxes	456	537
Other current liabilities	1,842	1,350
Total current liabilities	8,974	10,257
Regulatory liabilities	6,965	7,100
Deferred Income Tax Liabilities, Net	10,002	9,653
Other long-term liabilities	3,658	3,649
Total liabilities	70,632	67,473
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	6,377	6,389
Retained earnings	29,962	28,296
Accumulated other comprehensive loss, net	(2,125)	(1,706)
Total BHE shareholders' equity	33,684	32,449
Total liabilities and equity	104,417	100,051
Sierra Pacific Power Company [Member]
Current assets:
Cash and cash equivalents	12	27
Trade receivables, net	87	109
Income Taxes Receivable, Current	4	14
Inventories	76	57
Regulatory assets	32	12
Other current assets	23	20
Total current assets	234	239
Property, plant and equipment, net	3,099	3,075
Regulatory assets	298	283
Other assets	80	74
Total assets	3,711	3,671
Current liabilities:
Accounts payable	119	103
Accrued interest	14	14
Accrued property, income and other taxes	11	12
Regulatory liabilities	69	49
Customer deposits	17	21
Other current liabilities	34	21
Total current liabilities	264	220
Long-term debt, carrying value	1,135	1,135
Regulatory liabilities	460	489
Deferred Income Tax Liabilities, Net	349	347
Other long-term liabilities	165	160
Total liabilities	2,373	2,351
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	1,111	1,111
Retained earnings	228	210
Accumulated other comprehensive loss, net	(1)	(1)
Total BHE shareholders' equity	1,338	1,320
Total liabilities and equity	$ 3,711	$ 3,671

Consolidated Balance Sheets (_3

Consolidated Balance Sheets (Parenthetical) - SPPC - $ / shares	Jun. 30, 2020	Dec. 31, 2019
Common stock, shares authorized	0	0
Common stock, shares issued	0	0
Common stock, shares outstanding	0	0
Sierra Pacific Power Company [Member]
Common Stock, Par or Stated Value Per Share	$ 3.75	$ 3.75
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	1,000	1,000
Common stock, shares outstanding	1,000	1,000

Consolidated Balance Sheets (_4

Consolidated Balance Sheets (Parenthetical) - $ / shares shares in Millions	Jun. 30, 2020	Dec. 31, 2019
BHE shareholders' equity:
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	0	0
Common stock, shares issued	0	0
Common stock, shares outstanding	0	0

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Operating revenue:
Total operating revenue	$ 4,612	$ 4,894	$ 9,139	$ 9,504
Cost of sales	888	1,027	1,926	2,241
Energy:
Operations and maintenance	794	822	1,531	1,624
Depreciation and amortization	725	728	1,534	1,448
Property and other taxes	153	148	304	297
Real estate	1,116	1,210	1,989	2,016
Total operating expenses	3,676	3,935	7,284	7,626
Operating income	936	959	1,855	1,878
Other income (expense):
Interest Costs Incurred	(503)	(476)	(986)	(953)
Capitalized interest	19	17	36	33
Allowance for equity funds	38	38	72	70
Interest and dividend income	20	36	40	66
Gains (losses) on marketable securities, net	583	6	610	(62)
Other, net	52	30	25	65
Total other income (expense)	209	(349)	(203)	(781)
Income before income tax benefit and equity (loss) income	1,145	610	1,652	1,097
Income tax benefit	(7)	(76)	(191)	(224)
Equity (loss) income	(32)	2	(50)	(8)
Net income	1,120	688	1,793	1,313
Net income attributable to noncontrolling interests	4	4	7	7
Net income attributable to BHE shareholders	1,116	684	1,786	1,306
Electricity and natural gas [Member]
Operating revenue:
Total operating revenue	3,419	3,567	7,053	7,392
Residential real estate brokerage and mortgage businesses [Member]
Operating revenue:
Total operating revenue	$ 1,193	$ 1,327	$ 2,086	$ 2,112

Consolidated Statements of Op_2

Consolidated Statements of Operations - PacifiCorp - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Operating revenue	$ 4,612	$ 4,894	$ 9,139	$ 9,504
Cost of sales	888	1,027	1,926	2,241
Operating expenses:
Operating income	936	959	1,855	1,878
Other income (expense):
Interest expense	(503)	(476)	(986)	(953)
Allowance for borrowed funds	19	17	36	33
Allowance for equity funds	38	38	72	70
Interest and dividend income	20	36	40	66
Other, net	52	30	25	65
Total other income (expense)	209	(349)	(203)	(781)
Income before income tax expense and equity income	1,145	610	1,652	1,097
Income tax benefit	(7)	(76)	(191)	(224)
Net income attributable to BHE shareholders	1,116	684	1,786	1,306
PacifiCorp [Member]
Operating revenue	1,144	1,167	2,350	2,426
Cost of sales	383	384	800	849
Operating expenses:
Operations and maintenance	243	255	497	511
Depreciation and amortization	210	209	462	414
Property and other taxes	52	51	101	100
Utilities Operating Expense	888	899	1,860	1,874
Operating income	256	268	490	552
Other income (expense):
Interest expense	(110)	(102)	(212)	(198)
Allowance for borrowed funds	12	8	22	15
Allowance for equity funds	23	16	44	30
Interest and dividend income	3	7	6	12
Other, net	8	9	4	16
Total other income (expense)	(64)	(62)	(136)	(125)
Income before income tax expense and equity income	192	206	354	427
Income tax benefit	26	38	12	80
Net income attributable to BHE shareholders	$ 166	$ 168	$ 342	$ 347

Statements of Operations - MEC

Statements of Operations - MEC - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Operating revenue:
Total operating revenue	$ 4,612	$ 4,894	$ 9,139	$ 9,504
Cost of sales	888	1,027	1,926	2,241
Operating expenses:
Total operating expenses	3,676	3,935	7,284	7,626
Operating income	936	959	1,855	1,878
Other income (expense):
Interest expense	(503)	(476)	(986)	(953)
Allowance for borrowed funds	19	17	36	33
Allowance for equity funds	38	38	72	70
Other, net	52	30	25	65
Total other income (expense)	209	(349)	(203)	(781)
Income before income tax (benefit) expense and equity income	1,145	610	1,652	1,097
Income tax benefit	(7)	(76)	(191)	(224)
Net Income (Loss) Attributable to Parent	1,116	684	1,786	1,306
MidAmerican Energy Company [Member]
Operating revenue:
Total operating revenue	613	659	1,294	1,501
Operating expenses:
Operations and maintenance	182	204	347	411
Depreciation and amortization	175	179	351	356
Property and other taxes	35	29	69	63
Total operating expenses	505	565	1,088	1,292
Operating income	108	94	206	209
Other income (expense):
Interest expense	(74)	(70)	(150)	(139)
Allowance for borrowed funds	4	7	7	13
Allowance for equity funds	9	17	17	32
Other, net	21	10	16	30
Total other income (expense)	(40)	(36)	(110)	(64)
Income before income tax (benefit) expense and equity income	68	58	96	145
Income tax benefit	(141)	(98)	(264)	(204)
Net Income (Loss) Attributable to Parent	209	156	360	349
Regulated electric | MidAmerican Energy Company [Member]
Operating revenue:
Total operating revenue	518	538	989	1,080
Cost of sales	71	91	151	205
Regulated natural gas and other | MidAmerican Energy Company [Member]
Operating revenue:
Total operating revenue	95	121	305	421
Cost of sales	$ 42	$ 62	$ 170	$ 257

Consolidated Statements of Op_3

Consolidated Statements of Operations - MidAmerican Funding - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Operating revenue:
Total operating revenue	$ 4,612	$ 4,894	$ 9,139	$ 9,504
Cost of sales	888	1,027	1,926	2,241
Operating expenses:
Total operating expenses	3,676	3,935	7,284	7,626
Operating income	936	959	1,855	1,878
Other income (expense):
Interest expense	(503)	(476)	(986)	(953)
Allowance for borrowed funds	19	17	36	33
Allowance for equity funds	38	38	72	70
Other, net	52	30	25	65
Total other income (expense)	209	(349)	(203)	(781)
Income before income tax (benefit) expense and equity income	1,145	610	1,652	1,097
Income tax benefit	(7)	(76)	(191)	(224)
Net Income (Loss) Attributable to Parent	1,116	684	1,786	1,306
MidAmerican Funding, LLC and Subsidiaries [Domain]
Operating revenue:
Total operating revenue	616	660	1,302	1,502
Operating expenses:
Operations and maintenance	183	205	348	412
Depreciation and amortization	175	179	351	356
Property and other taxes	35	29	69	63
Total operating expenses	506	566	1,090	1,292
Operating income	110	94	212	210
Other income (expense):
Interest expense	(78)	(74)	(159)	(149)
Allowance for borrowed funds	4	7	7	13
Allowance for equity funds	9	17	17	32
Other, net	21	10	15	31
Total other income (expense)	(44)	(40)	(120)	(73)
Income before income tax (benefit) expense and equity income	66	54	92	137
Income tax benefit	(142)	(99)	(266)	(206)
Net Income (Loss) Attributable to Parent	208	153	358	343
Regulated electric | MidAmerican Funding, LLC and Subsidiaries [Domain]
Operating revenue:
Total operating revenue	518	538	989	1,080
Cost of sales	71	91	151	205
Regulated natural gas and other | MidAmerican Funding, LLC and Subsidiaries [Domain]
Operating revenue:
Total operating revenue	98	122	313	422
Cost of sales	$ 42	$ 62	$ 171	$ 256

Consolidated Statements of Op_4

Consolidated Statements of Operations - NPC - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Operating revenue	$ 4,612	$ 4,894	$ 9,139	$ 9,504
Cost of sales	888	1,027	1,926	2,241
Total operating expenses	3,676	3,935	7,284	7,626
Operating income	936	959	1,855	1,878
Interest expense	(503)	(476)	(986)	(953)
Capitalized interest	19	17	36	33
Allowance for equity funds	38	38	72	70
Other, net	52	30	25	65
Total other income (expense)	209	(349)	(203)	(781)
Income before income tax expense and equity income	1,145	610	1,652	1,097
Income tax benefit	(7)	(76)	(191)	(224)
Net income attributable to BHE shareholders	1,116	684	1,786	1,306
Nevada Power Company [Member]
Operating revenue	509	527	898	922
Cost of sales	197	226	367	399
Operations and maintenance	74	78	156	154
Depreciation and amortization	91	89	181	178
Property and other taxes	11	11	23	23
Total operating expenses	373	404	727	754
Operating income	136	123	171	168
Interest expense	(40)	(41)	(82)	(88)
Capitalized interest	1	0	2	1
Allowance for equity funds	2	1	4	2
Other, net	7	5	6	13
Total other income (expense)	(30)	(35)	(70)	(72)
Income before income tax expense and equity income	106	88	101	96
Income tax benefit	23	19	22	21
Net income attributable to BHE shareholders	$ 83	$ 69	$ 79	$ 75

Consolidated Statements of Op_5

Consolidated Statements of Operations - SPPC - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Total operating revenue	$ 4,612	$ 4,894	$ 9,139	$ 9,504
Cost of sales	888	1,027	1,926	2,241
Total operating expenses	3,676	3,935	7,284	7,626
Operating income	936	959	1,855	1,878
Interest expense	(503)	(476)	(986)	(953)
Allowance for equity funds	38	38	72	70
Other, net	52	30	25	65
Total other income (expense)	209	(349)	(203)	(781)
Income before income tax expense and equity income	1,145	610	1,652	1,097
Income tax benefit	(7)	(76)	(191)	(224)
Net income attributable to BHE shareholders	1,116	684	1,786	1,306
Sierra Pacific Power Company [Member]
Total operating revenue	185	194	417	413
Operations and maintenance	41	40	83	84
Depreciation and amortization	34	32	68	63
Property and other taxes	5	6	11	12
Total operating expenses	162	167	354	349
Operating income	23	27	63	64
Interest expense	(14)	(12)	(28)	(24)
Allowance for equity funds	1	1	2	2
Other, net	3	1	4	3
Total other income (expense)	(9)	(9)	(21)	(18)
Income before income tax expense and equity income	14	18	42	46
Income tax benefit	1	4	4	10
Net income attributable to BHE shareholders	13	14	38	36
Sierra Pacific Power Company [Member] | Regulated electric
Total operating revenue	165	172	349	354
Cost of sales	72	79	152	161
Sierra Pacific Power Company [Member] | Regulated natural gas
Total operating revenue	20	22	68	59
Cost of sales	$ 10	$ 10	$ 40	$ 29

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 1,120	$ 688	$ 1,793	$ 1,313
Other comprehensive income (loss), net of tax:
Unrecognized amounts on retirement benefits, net of tax	(10)	(18)	(44)	14
Foreign currency translation adjustment	109	(49)	(439)	106
Unrealized losses on cash flow hedges, net of tax	9	(27)	(24)	(35)
Total other comprehensive (loss) income, net of tax	128	(58)	(419)	57
Comprehensive income	1,248	630	1,374	1,370
Comprehensive income attributable to noncontrolling interests	4	4	7	7
Comprehensive income attributable to BHE shareholders	$ 1,244	$ 626	$ 1,367	$ 1,363

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Consolidated Statements of Comprehensive Income Parenthetical [Abstract]
Unrecognized amounts on retirement benefits, tax	$ 2	$ 5	$ 13	$ (2)
Unrealized (losses) gains on cash flow hedges, tax	$ 3	$ (9)	$ (7)	$ (11)

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Long-term income tax receivable [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss) Income, Net [Member]	Noncontrolling Interest [Member]
Balance (shares) at Dec. 31, 2018		77
Balance at Dec. 31, 2018	$ 29,723	$ 0	$ 6,371	$ (457)	$ 25,624	$ (1,945)	$ 130
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	1,313	0	0		1,306	0	7
Other comprehensive income (loss)	57	0	0		0	57	0
Common stock purchases	(293)	0	(16)		(277)	0	0
Distributions	(10)	0	0		0	0	(10)
Other equity transactions	(3)	$ 0	0		(2)	0	(1)
Balance (shares) at Jun. 30, 2019		77
Balance at Jun. 30, 2019	30,787	$ 0	6,355	(457)	26,651	(1,888)	126
Balance (shares) at Mar. 31, 2019		77
Balance at Mar. 31, 2019	30,162	$ 0	6,355	(457)	25,968	(1,830)	126
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	688	0	0		684	0	4
Other comprehensive income (loss)	(58)	0	0		0	(58)	0
Distributions	(3)	0	0		0	0	(3)
Other equity transactions	(2)	$ 0	0		(1)	0	(1)
Balance (shares) at Jun. 30, 2019		77
Balance at Jun. 30, 2019	$ 30,787	$ 0	6,355	(457)	26,651	(1,888)	126
Balance (shares) at Dec. 31, 2019	0	77
Balance at Dec. 31, 2019	$ 32,578	$ 0	6,389	(530)	28,296	(1,706)	129
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	1,793	0	0		1,786	0	7
Other comprehensive income (loss)	(419)	$ 0	0		0	(419)	0
Common stock purchases, shares		(1)
Common stock purchases	(126)	$ 0	(6)		(120)	0	0
Distributions	(7)	0	0		0	0	(7)
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests	(33)	0	(5)	0	0	0	(28)
Other equity transactions	$ (1)	$ 0	(1)		0	0	0
Balance (shares) at Jun. 30, 2020	0	76
Balance at Jun. 30, 2020	$ 33,785	$ 0	6,377	(530)	29,962	(2,125)	101
Balance (shares) at Mar. 31, 2020		76
Balance at Mar. 31, 2020	32,572	$ 0	6,382	(530)	28,846	(2,253)	127
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	1,120	0	0		1,116	0	4
Other comprehensive income (loss)	128	0	0		0	128	0
Distributions	(2)	0	0		0	0	(2)
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests	$ (33)	$ 0	(5)	0	0	0	(28)
Balance (shares) at Jun. 30, 2020	0	76
Balance at Jun. 30, 2020	$ 33,785	$ 0	$ 6,377	$ (530)	$ 29,962	$ (2,125)	$ 101

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Equity - PacifiCorp - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss) Income, Net [Member]	PacifiCorp [Member]	PacifiCorp [Member]Preferred Stock [Member]	PacifiCorp [Member]Common Stock [Member]	PacifiCorp [Member]Additional Paid-in Capital [Member]	PacifiCorp [Member]Retained Earnings [Member]	PacifiCorp [Member]Accumulated Other Comprehensive (Loss) Income, Net [Member]
Stockholders' Equity Attributable to Parent at Dec. 31, 2018						$ 7,845	$ 2	$ 0	$ 4,479	$ 3,377	$ (13)
Net Income (Loss) Attributable to Parent	$ 1,306					347				347
Total other comprehensive (loss) income, net of tax	57	$ 0	$ 0	$ 0	$ 57	0				(1)	1
Dividends, Common Stock, Cash						(175)				(175)
Stockholders' Equity Attributable to Parent at Jun. 30, 2019						8,017	2	0	4,479	3,548	(12)
Stockholders' Equity Attributable to Parent at Mar. 31, 2019						7,850	2	0	4,479	3,381	(12)
Net Income (Loss) Attributable to Parent	684					168				168
Total other comprehensive (loss) income, net of tax	(58)	0	0	0	(58)	(1)				(1)
Stockholders' Equity Attributable to Parent at Jun. 30, 2019						8,017	2	0	4,479	3,548	(12)
Stockholders' Equity Attributable to Parent at Dec. 31, 2019	32,449					8,437	2	0	4,479	3,972	(16)
Net Income (Loss) Attributable to Parent	1,786					342				342
Total other comprehensive (loss) income, net of tax	(419)	0	0	0	(419)	1				0	1
Stockholders' Equity Attributable to Parent at Jun. 30, 2020	33,684					8,780	2	0	4,479	4,314	(15)
Stockholders' Equity Attributable to Parent at Mar. 31, 2020						8,614	2	0	4,479	4,148	(15)
Net Income (Loss) Attributable to Parent	1,116					166				166
Total other comprehensive (loss) income, net of tax	128	$ 0	$ 0	$ 0	$ 128
Stockholders' Equity Attributable to Parent at Jun. 30, 2020	$ 33,684					$ 8,780	$ 2	$ 0	$ 4,479	$ 4,314	$ (15)

Statements of Changes in Shareh

Statements of Changes in Shareholder's Equity - MEC - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss) Income, Net [Member]	MidAmerican Energy Company [Member]	MidAmerican Energy Company [Member]Common Stock [Member]	MidAmerican Energy Company [Member]Additional Paid-in Capital [Member]	MidAmerican Energy Company [Member]Retained Earnings [Member]
Stockholders' Equity Attributable to Parent at Dec. 31, 2018						$ 6,446	$ 0	$ 561	$ 5,885
Net Income (Loss) Attributable to Parent	$ 1,306					349			349
Other comprehensive income (loss)	57	$ 0	$ 0	$ 0	$ 57
Stockholders' Equity, Other	(3)	0	0	(2)	0
Stockholders' Equity Attributable to Parent at Jun. 30, 2019						6,795	0	561	6,234
Stockholders' Equity Attributable to Parent at Mar. 31, 2019						6,639	0	561	6,078
Net Income (Loss) Attributable to Parent	684					156			156
Other comprehensive income (loss)	(58)	0	0	0	(58)
Stockholders' Equity, Other	(2)	0	0	(1)	0
Stockholders' Equity Attributable to Parent at Jun. 30, 2019						6,795	0	561	6,234
Stockholders' Equity Attributable to Parent at Dec. 31, 2019	32,449					7,240	0	561	6,679
Net Income (Loss) Attributable to Parent	1,786					360			360
Other comprehensive income (loss)	(419)	0	0	0	(419)
Stockholders' Equity, Other	(1)	0	(1)	0	0
Stockholders' Equity Attributable to Parent at Jun. 30, 2020	33,684					7,600	0	561	7,039
Stockholders' Equity Attributable to Parent at Mar. 31, 2020						7,391	0	561	6,830
Net Income (Loss) Attributable to Parent	1,116					209			209
Other comprehensive income (loss)	128	$ 0	$ 0	$ 0	$ 128
Stockholders' Equity Attributable to Parent at Jun. 30, 2020	$ 33,684					$ 7,600	$ 0	$ 561	$ 7,039

Consolidated Statements of Ch_3

Consolidated Statements of Changes in Member's Equity - MidAmerican Funding - USD ($) $ in Millions	Total	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss) Income, Net [Member]	MidAmerican Funding, LLC and Subsidiaries [Domain]	MidAmerican Funding, LLC and Subsidiaries [Domain]Additional Paid-in Capital [Member]	MidAmerican Funding, LLC and Subsidiaries [Domain]Retained Earnings [Member]
Stockholders' Equity Attributable to Parent at Dec. 31, 2018					$ 7,329	$ 1,679	$ 5,650
Net Income (Loss) Attributable to Parent	$ 1,306				343		343
Other comprehensive income (loss)	57	$ 0	$ 0	$ 57
Stockholders' Equity, Other	(3)	0	(2)	0
Stockholders' Equity Attributable to Parent at Jun. 30, 2019					7,672	1,679	5,993
Stockholders' Equity Attributable to Parent at Mar. 31, 2019					7,519	1,679	5,840
Net Income (Loss) Attributable to Parent	684				153		153
Other comprehensive income (loss)	(58)	0	0	(58)
Stockholders' Equity, Other	(2)	0	(1)	0
Stockholders' Equity Attributable to Parent at Jun. 30, 2019					7,672	1,679	5,993
Stockholders' Equity Attributable to Parent at Dec. 31, 2019	32,449				8,101	1,679	6,422
Net Income (Loss) Attributable to Parent	1,786				358		358
Other comprehensive income (loss)	(419)	0	0	(419)
Stockholders' Equity, Other	(1)	(1)	0	0
Stockholders' Equity Attributable to Parent at Jun. 30, 2020	33,684				8,459	1,679	6,780
Stockholders' Equity Attributable to Parent at Mar. 31, 2020					8,251	1,679	6,572
Net Income (Loss) Attributable to Parent	1,116				208		208
Other comprehensive income (loss)	128	$ 0	$ 0	$ 128
Stockholders' Equity Attributable to Parent at Jun. 30, 2020	$ 33,684				$ 8,459	$ 1,679	$ 6,780

Consolidated Statements of Ch_4

Consolidated Statements of Changes in Equity - NPC - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss) Income, Net [Member]	Nevada Power Company [Member]	Nevada Power Company [Member]Common Stock [Member]	Nevada Power Company [Member]Additional Paid-in Capital [Member]	Nevada Power Company [Member]Retained Earnings [Member]	Nevada Power Company [Member]Accumulated Other Comprehensive (Loss) Income, Net [Member]
Balance (shares) at Dec. 31, 2018		77,000,000					1,000
Stockholders' Equity Attributable to Parent at Dec. 31, 2018						$ 2,904	$ 0	$ 2,308	$ 600	$ (4)
Net Income (Loss) Attributable to Parent	$ 1,306					75			75
Dividends, Common Stock, Cash						(95)			(95)
Balance (shares) at Jun. 30, 2019		77,000,000					1,000
Stockholders' Equity Attributable to Parent at Jun. 30, 2019						2,884	$ 0	2,308	580	(4)
Stockholders' Equity, Other	(3)	$ 0	$ 0	$ (2)	$ 0
Balance (shares) at Mar. 31, 2019		77,000,000					1,000
Stockholders' Equity Attributable to Parent at Mar. 31, 2019						2,835	$ 0	2,308	531	(4)
Net Income (Loss) Attributable to Parent	684					69			69
Dividends, Common Stock, Cash						(20)	$ 0	0	(20)	0
Balance (shares) at Jun. 30, 2019		77,000,000					1,000
Stockholders' Equity Attributable to Parent at Jun. 30, 2019						$ 2,884	$ 0	2,308	580	(4)
Stockholders' Equity, Other	$ (2)	$ 0	0	(1)	0
Balance (shares) at Dec. 31, 2019	0	77,000,000				1,000	1,000
Stockholders' Equity Attributable to Parent at Dec. 31, 2019	$ 32,449					$ 2,797	$ 0	2,308	493	(4)
Net Income (Loss) Attributable to Parent	$ 1,786					79			79
Dividends, Common Stock, Cash						$ (85)			(85)
Balance (shares) at Jun. 30, 2020	0	76,000,000				1,000	1,000
Stockholders' Equity Attributable to Parent at Jun. 30, 2020	$ 33,684					$ 2,792	$ 0	2,308	488	(4)
Stockholders' Equity, Other	(1)	$ 0	$ (1)	$ 0	$ 0	1			1
Balance (shares) at Mar. 31, 2020		76,000,000					1,000
Stockholders' Equity Attributable to Parent at Mar. 31, 2020						2,794	$ 0	2,308	490	(4)
Net Income (Loss) Attributable to Parent	$ 1,116					83			83
Dividends, Common Stock, Cash						$ (85)			(85)
Balance (shares) at Jun. 30, 2020	0	76,000,000				1,000	1,000
Stockholders' Equity Attributable to Parent at Jun. 30, 2020	$ 33,684					$ 2,792	$ 0	$ 2,308	$ 488	$ (4)

Consolidated Statements of Ch_5

Consolidated Statements of Changes in Equity - SPPC - USD ($) $ in Millions	Total	Common Stock [Member]	Sierra Pacific Power Company [Member]	Sierra Pacific Power Company [Member]Common Stock [Member]	Sierra Pacific Power Company [Member]Additional Paid-in Capital [Member]	Sierra Pacific Power Company [Member]Retained Earnings [Member]	Sierra Pacific Power Company [Member]Accumulated Other Comprehensive (Loss) Income, Net [Member]
Balance (shares) at Dec. 31, 2018		77,000,000		1,000
Stockholders' Equity Attributable to Parent at Dec. 31, 2018			$ 1,264	$ 0	$ 1,111	$ 153	$ 0
Net Income (Loss) Attributable to Parent	$ 1,306		36			36
Dividends, Common Stock, Cash			(46)	$ 0		(46)	0
Balance (shares) at Jun. 30, 2019		77,000,000		1,000
Stockholders' Equity Attributable to Parent at Jun. 30, 2019			1,254	$ 0	1,111	143	0
Balance (shares) at Mar. 31, 2019		77,000,000		1,000
Stockholders' Equity Attributable to Parent at Mar. 31, 2019			1,286	$ 0	1,111	175	0
Net Income (Loss) Attributable to Parent	$ 684		14			14
Dividends, Common Stock, Cash			(46)	$ 0		(46)	0
Balance (shares) at Jun. 30, 2019		77,000,000		1,000
Stockholders' Equity Attributable to Parent at Jun. 30, 2019			$ 1,254	$ 0	1,111	143	0
Balance (shares) at Dec. 31, 2019	0	77,000,000	1,000	1,000
Stockholders' Equity Attributable to Parent at Dec. 31, 2019	$ 32,449		$ 1,320	$ 0	1,111	210	(1)
Net Income (Loss) Attributable to Parent	$ 1,786		38			38
Dividends, Common Stock, Cash			$ (20)			(20)
Balance (shares) at Jun. 30, 2020	0	76,000,000	1,000	1,000
Stockholders' Equity Attributable to Parent at Jun. 30, 2020	$ 33,684		$ 1,338	$ 0	1,111	228	(1)
Balance (shares) at Mar. 31, 2020		76,000,000		1,000
Stockholders' Equity Attributable to Parent at Mar. 31, 2020			1,345	$ 0	1,111	235	(1)
Net Income (Loss) Attributable to Parent	$ 1,116		13			13
Dividends, Common Stock, Cash			$ (20)			(20)
Balance (shares) at Jun. 30, 2020	0	76,000,000	1,000	1,000
Stockholders' Equity Attributable to Parent at Jun. 30, 2020	$ 33,684		$ 1,338	$ 0	$ 1,111	$ 228	$ (1)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income	$ 1,793	$ 1,313
Adjustments to reconcile net income to net cash flows from operating activities:
Gains (losses) on marketable securities, net	(610)	62
Depreciation and amortization	1,557	1,472
Allowance for equity funds	(72)	(70)
Equity loss, net of distributions	64	37
Changes in regulatory assets and liabilities	(7)	1
Deferred income taxes and amortization of investment tax credits	288	25
Other, net	18	23
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	(783)	(550)
Derivative collateral, net	16	(30)
Pension and other postretirement benefit plans	(45)	(41)
Accrued property, income and other taxes, net	(605)	(140)
Accounts payable and other liabilities	240	32
Net cash flows from operating activities	1,854	2,134
Cash flows from investing activities:
Capital expenditures	(2,793)	(2,750)
Acquisitions, net of cash acquired	0	(29)
Purchases of marketable securities	(272)	(190)
Proceeds from sales of marketable securities	256	185
Equity method investments	(1,087)	(211)
Other, net	58	36
Net cash flows from investing activities	(3,838)	(2,959)
Cash flows from financing activities:
Proceeds from BHE senior debt	3,231	0
Repayments of Unsecured Debt	(350)	0
Common stock purchases	(126)	(293)
Proceeds from subsidiary debt	2,448	3,464
Repayments of subsidiary debt	(1,410)	(1,763)
Net (repayments of) proceeds from short-term debt	(920)	64
Business acquisition, acquisition of remaining noncontrolling interest	(33)	0
Other, net	(42)	(25)
Net cash flows from financing activities	2,798	1,447
Effect of exchange rate changes	(12)	1
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Start	1,268	883
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, End of Period	2,070	1,506
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	$ 802	$ 623

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows - PacifiCorp - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Net Income (Loss) Attributable to Parent	$ 1,786	$ 1,306
Increase (Decrease) in Allowance for Equity Funds Used During Construction	(72)	(70)
Changes in regulatory assets and liabilities	(7)	1
Deferred income taxes and amortization of investment tax credits	288	25
Other Noncash Income (Expense)	18	23
Trade receivables and other assets	(783)	(550)
Derivative collateral, net	16	(30)
Accrued property, income and other taxes, net	(605)	(140)
Accounts payable and other liabilities	240	32
Net cash flows from operating activities	1,854	2,134
Capital expenditures	(2,793)	(2,750)
Other, net	58	36
Net cash flows from investing activities	(3,838)	(2,959)
Net (repayments of) proceeds from short-term debt	(920)	64
Other, net	(42)	(25)
Net cash flows from financing activities	2,798	1,447
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	802	623
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Start	1,268	883
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, End of Period	2,070	1,506
PacifiCorp [Member]
Net Income (Loss) Attributable to Parent	342	347
Depreciation and amortization	462	414
Increase (Decrease) in Allowance for Equity Funds Used During Construction	(44)	(30)
Changes in regulatory assets and liabilities	(12)	(22)
Deferred income taxes and amortization of investment tax credits	(24)	(8)
Other Noncash Income (Expense)	1	(5)
Trade receivables and other assets	45	64
Increase (Decrease) in Inventories	(80)	(23)
Derivative collateral, net	7	4
Accrued property, income and other taxes, net	38	115
Accounts payable and other liabilities	35	(14)
Net cash flows from operating activities	770	842
Capital expenditures	(973)	(817)
Other, net	29	4
Net cash flows from investing activities	(944)	(813)
Proceeds from Issuance of Long-term Debt	987	990
Repayments of BHE senior debt and junior subordinated debentures	0	(350)
Net (repayments of) proceeds from short-term debt	(130)	(30)
Payments of Ordinary Dividends, Common Stock	0	(175)
Other, net	0	(2)
Net cash flows from financing activities	857	433
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	683	462
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Start	36	92
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, End of Period	$ 719	$ 554

Statements of Cash Flows - MEC

Statements of Cash Flows - MEC - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Net Income (Loss) Attributable to Parent	$ 1,786	$ 1,306
Allowance for equity funds	(72)	(70)
Deferred income taxes and amortization of investment tax credits	288	25
Other Noncash Income (Expense)	18	23
Trade receivables and other assets	(783)	(550)
Derivative collateral, net	16	(30)
Pension and other postretirement benefit plans	(45)	(41)
Accrued property, income and other taxes, net	(605)	(140)
Accounts payable and other liabilities	240	32
Net cash flows from operating activities	1,854	2,134
Capital expenditures	(2,793)	(2,750)
Purchases of marketable securities	(272)	(190)
Proceeds from sales of marketable securities	256	185
Other, net	58	36
Net cash flows from investing activities	(3,838)	(2,959)
Net (repayments of) proceeds from short-term debt	(920)	64
Other, net	(42)	(25)
Net cash flows from financing activities	2,798	1,447
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	802	623
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Start	1,268	883
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, End of Period	2,070	1,506
MidAmerican Energy Company [Member]
Net Income (Loss) Attributable to Parent	360	349
Depreciation and amortization	351	356
Amortization of Utility Plant to Other Operating Expense	17	17
Allowance for equity funds	(17)	(32)
Deferred income taxes and amortization of investment tax credits	131	52
Other Noncash Income (Expense)	(17)	6
Trade receivables and other assets	(1)	(2)
Increase (Decrease) in Inventories	(31)	20
Pension and other postretirement benefit plans	(11)	(6)
Accrued property, income and other taxes, net	(409)	(263)
Accounts payable and other liabilities	(47)	(34)
Net cash flows from operating activities	326	463
Capital expenditures	(824)	(1,017)
Purchases of marketable securities	(210)	(99)
Proceeds from sales of marketable securities	202	95
Other, net	14	13
Net cash flows from investing activities	(818)	(1,008)
Proceeds from Issuance of Long-term Debt	0	1,460
Repayments of BHE senior debt and junior subordinated debentures	0	(500)
Net (repayments of) proceeds from short-term debt	195	(240)
Other, net	(1)	0
Net cash flows from financing activities	194	720
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	(298)	175
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Start	330	56
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, End of Period	$ 32	$ 231

Consolidated Statements of Ca_3

Consolidated Statements of Cash Flows - MidAmerican Funding - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Net Income (Loss) Attributable to Parent	$ 1,786	$ 1,306
Allowance for equity funds	(72)	(70)
Deferred income taxes and amortization of investment tax credits	288	25
Other Noncash Income (Expense)	18	23
Trade receivables and other assets	(783)	(550)
Derivative collateral, net	16	(30)
Pension and other postretirement benefit plans	(45)	(41)
Accrued property, income and other taxes, net	(605)	(140)
Accounts payable and other liabilities	240	32
Net cash flows from operating activities	1,854	2,134
Capital expenditures	(2,793)	(2,750)
Purchases of marketable securities	(272)	(190)
Proceeds from sales of marketable securities	256	185
Other, net	58	36
Net cash flows from investing activities	(3,838)	(2,959)
Net (repayments of) proceeds from short-term debt	(920)	64
Other, net	(42)	(25)
Net cash flows from financing activities	2,798	1,447
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	802	623
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Start	1,268	883
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, End of Period	2,070	1,506
MidAmerican Funding, LLC and Subsidiaries [Domain]
Net Income (Loss) Attributable to Parent	358	343
Depreciation and amortization	351	356
Amortization of Utility Plant to Other Operating Expense	17	17
Allowance for equity funds	(17)	(32)
Deferred income taxes and amortization of investment tax credits	134	52
Other Noncash Income (Expense)	(17)	8
Trade receivables and other assets	0	(5)
Increase (Decrease) in Inventories	(31)	20
Pension and other postretirement benefit plans	(11)	(6)
Accrued property, income and other taxes, net	(414)	(265)
Accounts payable and other liabilities	(47)	(34)
Net cash flows from operating activities	323	454
Capital expenditures	(824)	(1,017)
Purchases of marketable securities	(210)	(99)
Proceeds from sales of marketable securities	202	95
Other, net	15	13
Net cash flows from investing activities	(817)	(1,008)
Proceeds from Issuance of Long-term Debt	0	1,460
Repayments of BHE senior debt and junior subordinated debentures	0	(500)
Increase (Decrease) in Notes Payable, Related Parties, Current	4	10
Net (repayments of) proceeds from short-term debt	195	(240)
Other, net	(1)	(1)
Net cash flows from financing activities	198	729
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	(296)	175
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Start	331	57
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, End of Period	$ 35	$ 232

Consolidated Statements of Ca_4

Consolidated Statements of Cash Flows - NPC - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Net Income (Loss) Attributable to Parent	$ 1,786	$ 1,306
Allowance for equity funds	(72)	(70)
Changes in regulatory assets and liabilities	(7)	1
Deferred income taxes and amortization of investment tax credits	288	25
Other Noncash Income (Expense)	18	23
Trade receivables and other assets	(783)	(550)
Accrued property, income and other taxes, net	(605)	(140)
Accounts payable and other liabilities	240	32
Net cash flows from operating activities	1,854	2,134
Capital expenditures	(2,793)	(2,750)
Payments for (Proceeds from) Other Investing Activities	(58)	(36)
Net cash flows from investing activities	(3,838)	(2,959)
Other, net	(42)	(25)
Net cash flows from financing activities	2,798	1,447
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	802	623
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Start	1,268	883
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, End of Period	2,070	1,506
Nevada Power Company [Member]
Net Income (Loss) Attributable to Parent	79	75
Depreciation and amortization	181	178
Allowance for equity funds	(4)	(2)
Changes in regulatory assets and liabilities	1	3
Deferred income taxes and amortization of investment tax credits	(7)	(9)
Deferred Energy Change	15	13
Amortization of Deferred Charges	(11)	12
Other Noncash Income (Expense)	6	(6)
Trade receivables and other assets	(80)	(47)
Increase (Decrease) in Inventories	2	(3)
Accrued property, income and other taxes, net	28	21
Accounts payable and other liabilities	(3)	30
Net cash flows from operating activities	207	265
Capital expenditures	(257)	(191)
Payments for (Proceeds from) Other Investing Activities	0	(2)
Net cash flows from investing activities	(257)	(189)
Proceeds from Issuance of Long-term Debt	718	495
Repayments of BHE senior debt and junior subordinated debentures	(575)	(500)
Payments of Ordinary Dividends, Common Stock	(85)	(95)
Other, net	(8)	(7)
Net cash flows from financing activities	50	(107)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	0	(31)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Start	25	121
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, End of Period	$ 25	$ 90

Consolidated Statements of Ca_5

Consolidated Statements of Cash Flows - SPPC - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Net Income (Loss) Attributable to Parent	$ 1,786	$ 1,306
Allowance for equity funds	(72)	(70)
Changes in regulatory assets and liabilities	(7)	1
Deferred income taxes and amortization of investment tax credits	288	25
Other Noncash Income (Expense)	(18)	(23)
Trade receivables and other assets	(783)	(550)
Accrued property, income and other taxes, net	(605)	(140)
Accounts payable and other liabilities	240	32
Net cash flows from operating activities	1,854	2,134
Capital expenditures	(2,793)	(2,750)
Net cash flows from investing activities	(3,838)	(2,959)
Other, net	(42)	(25)
Net cash flows from financing activities	2,798	1,447
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	802	623
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Start	1,268	883
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, End of Period	2,070	1,506
Sierra Pacific Power Company [Member]
Net Income (Loss) Attributable to Parent	38	36
Depreciation and amortization	68	63
Allowance for equity funds	(2)	(1)
Changes in regulatory assets and liabilities	(24)	20
Deferred income taxes and amortization of investment tax credits	(6)	2
Deferred Energy Change	21	(13)
Amortization of Deferred Charges	1	(6)
Other Noncash Income (Expense)	(1)	1
Trade receivables and other assets	11	12
Increase (Decrease) in Inventories	19	8
Accrued property, income and other taxes, net	10	7
Accounts payable and other liabilities	18	(23)
Net cash flows from operating activities	117	88
Capital expenditures	(110)	(99)
Net cash flows from investing activities	(110)	(99)
Proceeds from Issuance of Long-term Debt	0	125
Repayments of Long-term Debt	0	109
Payments of Ordinary Dividends, Common Stock	20	46
Other, net	(2)	(2)
Net cash flows from financing activities	(22)	(32)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	(15)	(43)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Start	32	76
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, End of Period	$ 17	$ 33

General

General	6 Months Ended
	Jun. 30, 2020
Segment Reporting Information [Line Items]
General/Organization and Operations	General Berkshire Hathaway Energy Company (" BHE ") is a holding company that owns a highly diversified portfolio of locally managed businesses principally engaged in the energy industry (collectively with its subsidiaries, the "Company") and is a consolidated subsidiary of Berkshire Hathaway Inc. (" Berkshire Hathaway "). The Company's operations are organized as eight business segments: PacifiCorp , MidAmerican Funding, LLC (" MidAmerican Funding ") (which primarily consists of MidAmerican Energy Company (" MidAmerican Energy ")), NV Energy, Inc. (" NV Energy ") (which primarily consists of Nevada Power Company (" Nevada Power ") and Sierra Pacific Power Company (" Sierra Pacific ")), Northern Powergrid Holdings Company (" Northern Powergrid ") (which primarily consists of Northern Powergrid (Northeast) Limited and Northern Powergrid (Yorkshire) plc ), BHE Pipeline Group (which primarily consists of Northern Natural Gas Company (" Northern Natural Gas ") and Kern River Gas Transmission Company (" Kern River ")), BHE Transmission (which consists of BHE Canada Holdings Corporation (" BHE Canada ") (which primarily consists of AltaLink, L.P. (" AltaLink ")) and BHE U.S. Transmission, LLC ), BHE Renewables (which primarily consists of BHE Renewables, LLC and CalEnergy Philippines ) and HomeServices of America, Inc. (collectively with its subsidiaries, " HomeServices "). The Company, through these locally managed and operated businesses, owns four utility companies in the United States serving customers in 11 states, two electricity distribution companies in Great Britain, two interstate natural gas pipeline companies in the United States, an electric transmission business in Canada, interests in electric transmission businesses in the United States, a renewable energy business primarily investing in wind, solar, geothermal and hydroelectric projects, the largest residential real estate brokerage firm in the United States and one of the largest residential real estate brokerage franchise networks in the United States. The unaudited Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information and the United States Securities and Exchange Commission's rules and regulations for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the disclosures required by GAAP for annual financial statements. Management believes the unaudited Consolidated Financial Statements contain all adjustments (consisting only of normal recurring adjustments) considered necessary for the fair presentation of the unaudited Consolidated Financial Statements as of June 30, 2020 and for the three- and six-month periods ended June 30, 2020 and 2019 . The results of operations for the three- and six-month periods ended June 30, 2020 are not necessarily indicative of the results to be expected for the full year. The preparation of the unaudited Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the unaudited Consolidated Financial Statements and the reported amounts of revenue and expenses during the period. Actual results may differ from the estimates used in preparing the unaudited Consolidated Financial Statements. Note 2 of Notes to Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2019 describes the most significant accounting policies used in the preparation of the unaudited Consolidated Financial Statements. There have been no significant changes in the Company's assumptions regarding significant accounting estimates and policies during the six-month period ended June 30, 2020 . Coronavirus Disease 2019 ("COVID-19") In March 2020, COVID-19 was declared a global pandemic and containment and mitigation measures were recommended worldwide, which has had an unprecedented impact on society in general and on worldwide economic conditions. COVID-19 has impacted many of the Company's customers ranging from high unemployment levels, an inability to pay bills and business closures or operating at reduced capacity levels. While COVID-19 has impacted the Company's financial results and operations through June 30, 2020, the impacts have not been material. However, more severe impacts may still occur that could adversely affect future financial results depending on the duration and extent of COVID-19. These impacts include, but are not limited to, lower operating revenue and higher bad debt expense. The duration and extent of COVID-19 and its future impact on the Company's businesses cannot be reasonably estimated at this time. Accordingly, significant estimates used in the preparation of the Company's unaudited Consolidated Financial Statements, including those associated with evaluations of certain long-lived assets, goodwill and other intangible assets for impairment, expected credit losses on amounts owed to the Company and potential regulatory deferral or recovery of certain costs may be subject to significant adjustments in future periods.
PacifiCorp [Member]
Segment Reporting Information [Line Items]
General/Organization and Operations	General PacifiCorp, which includes PacifiCorp and its subsidiaries, is a United States regulated electric utility company serving retail customers, including residential, commercial, industrial, irrigation and other customers in portions of Utah, Oregon, Wyoming, Washington, Idaho and California. PacifiCorp owns, or has interests in, a number of thermal, hydroelectric, wind-powered and geothermal generating facilities, as well as electric transmission and distribution assets. PacifiCorp also buys and sells electricity on the wholesale market with other utilities, energy marketing companies, financial institutions and other market participants. PacifiCorp is subject to comprehensive state and federal regulation. PacifiCorp's subsidiaries support its electric utility operations by providing coal mining services. PacifiCorp is an indirect subsidiary of Berkshire Hathaway Energy Company (" BHE "), a holding company based in Des Moines, Iowa that owns subsidiaries principally engaged in energy businesses. BHE is a consolidated subsidiary of Berkshire Hathaway Inc. (" Berkshire Hathaway "). The unaudited Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information and the United States Securities and Exchange Commission's rules and regulations for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the disclosures required by GAAP for annual financial statements. Management believes the unaudited Consolidated Financial Statements contain all adjustments (consisting only of normal recurring adjustments) considered necessary for the fair presentation of the unaudited Consolidated Financial Statements as of June 30, 2020 and for the three- and six-month periods ended June 30, 2020 and 2019 . The Consolidated Statements of Comprehensive Income have been omitted as net income materially equals comprehensive income for the three- and six-month periods ended June 30, 2020 and 2019 . The results of operations for the three- and six-month periods ended June 30, 2020 and 2019 are not necessarily indicative of the results to be expected for the full year. The preparation of the unaudited Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the unaudited Consolidated Financial Statements and the reported amounts of revenue and expenses during the period. Actual results may differ from the estimates used in preparing the unaudited Consolidated Financial Statements. Note 2 of Notes to Consolidated Financial Statements included in PacifiCorp's Annual Report on Form 10-K for the year ended December 31, 2019 describes the most significant accounting policies used in the preparation of the unaudited Consolidated Financial Statements. There have been no significant changes in PacifiCorp's assumptions regarding significant accounting estimates and policies during the six-month period ended June 30, 2020 . Coronavirus Disease 2019 ("COVID-19") In March 2020, COVID‑19 was declared a global pandemic and containment and mitigation measures were recommended worldwide, which has had an unprecedented impact on society in general and on economic conditions in the United States. COVID-19 has impacted many of PacifiCorp's customers ranging from high unemployment levels, an inability to pay bills and business closures or operating at reduced capacity levels. While COVID‑19 has impacted PacifiCorp's financial results and operations through June 30, 2020, the impacts have not been material. However, more severe impacts may still occur that could adversely affect future financial results depending on the duration and extent of COVID-19. These impacts include, but are not limited to, lower operating revenue from reductions in the consumption of electricity by retail utility customers, particularly in the commercial and industrial customer classes as the longer term impacts of COVID-19 and related customer and governmental responses remain uncertain, and higher bad debt expense resulting from a higher than average level of write-offs of uncollectible accounts associated with the suspension of disconnections across PacifiCorp's service territory and suspension of late payment fees in certain jurisdictions implemented to assist customers. Other impacts may include increased retirement plan contributions due to reductions in the market value of retirement plan assets. The duration and extent of COVID‑19 and its future impact on PacifiCorp's business cannot be reasonably estimated at this time. Accordingly, significant estimates used in the preparation of PacifiCorp's unaudited Consolidated Financial Statements, including those associated with evaluations of certain long-lived assets for impairment, expected credit losses on amounts owed to PacifiCorp and potential regulatory deferral or recovery of certain costs may be subject to significant adjustments in future periods. In March and April 2020, PacifiCorp filed applications requesting authorization to defer costs associated with COVID‑19 with the Utah Public Service Commission, the Oregon Public Utility Commission, the Wyoming Public Service Commission ("WPSC"), the Washington Utilities and Transportation Commission and the Idaho Public Utilities Commission ("IPUC"). In April 2020, as ordered by the California Public Utilities Commission, PacifiCorp filed to establish the COVID‑19 Pandemic Protections Memorandum Account. In April 2020, the WPSC approved PacifiCorp's application to defer costs associated with COVID‑19, subject to a public notice period, and required associated benefits arising from COVID‑19 to be offset against the deferred costs. During the public notice period, one party to the proceeding filed a petition for a rehearing of the matter. In July 2020, the IPUC approved PacifiCorp's application to defer costs associated with COVID‑19 and required associated benefits arising from COVID‑19 to be offset against the deferred costs.
MidAmerican Energy Company [Member]
Segment Reporting Information [Line Items]
General/Organization and Operations	General MidAmerican Energy Company ("MidAmerican Energy") is a public utility with electric and natural gas operations and is the principal subsidiary of MHC Inc. ("MHC"). MHC is a holding company that conducts no business other than the ownership of its subsidiaries. MHC's nonregulated subsidiary is Midwest Capital Group, Inc. MHC is the direct, wholly owned subsidiary of MidAmerican Funding, LLC ("MidAmerican Funding"), which is an Iowa limited liability company with Berkshire Hathaway Energy Company (" BHE ") as its sole member. BHE is a holding company based in Des Moines, Iowa, that owns subsidiaries principally engaged in energy businesses. BHE is a consolidated subsidiary of Berkshire Hathaway Inc. (" Berkshire Hathaway "). The unaudited Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information and the United States Securities and Exchange Commission's rules and regulations for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the disclosures required by GAAP for annual financial statements. Management believes the unaudited Financial Statements contain all adjustments (consisting only of normal recurring adjustments) considered necessary for the fair presentation of the unaudited Financial Statements as of June 30, 2020 , and for the three- and six-month periods ended June 30, 2020 and 2019 . The Statements of Comprehensive Income have been omitted as net income equals comprehensive income for the three- and six-month periods ended June 30, 2020 and 2019 . The results of operations for the three- and six-month periods ended June 30, 2020 , are not necessarily indicative of the results to be expected for the full year. The preparation of the unaudited Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the unaudited Financial Statements and the reported amounts of revenue and expenses during the period. Actual results may differ from the estimates used in preparing the unaudited Financial Statements. Note 2 of Notes to Financial Statements included in MidAmerican Energy's Annual Report on Form 10-K for the year ended December 31, 2019 , describes the most significant accounting policies used in the preparation of the unaudited Financial Statements. There have been no significant changes in MidAmerican Energy's assumptions regarding significant accounting estimates and policies during the six-month period ended June 30, 2020 . Coronavirus Disease 2019 ("COVID-19") In March 2020, COVID-19 was declared a global pandemic and containment and mitigation measures were recommended worldwide, which has had an unprecedented impact on society in general and on economic conditions in the United States. COVID-19 has impacted many of MidAmerican Energy's customers ranging from high unemployment levels, an inability to pay bills and business closures or operating at reduced capacity levels. While COVID-19 has impacted MidAmerican Energy's financial results and operations through June 30, 2020 , the impacts have not been material. However, more severe impacts may still occur that could adversely affect future financial results depending on the duration and extent of COVID-19. These impacts include, but are not limited to, lower operating revenue and higher bad debt expense. The duration and extent of COVID-19 and its future impact on MidAmerican Energy's business cannot be reasonably estimated at this time. Accordingly, significant estimates used in the preparation of MidAmerican Energy's unaudited Financial Statements, including those associated with evaluations of certain long-lived assets for impairment, expected credit losses on amounts owed to MidAmerican Energy and potential regulatory recovery of certain costs may be subject to significant adjustments in future periods. In May 2020, the Iowa Utilities Board ("IUB") issued an order authorizing MidAmerican Energy to use a regulatory asset account to track increased costs and other financial impacts, including changes in revenue, associated with COVID-19. At such time as MidAmerican Energy deems appropriate, it may initiate a proceeding with the IUB to seek recovery of such costs and other financial impacts. MidAmerican Energy cannot predict at this time the amount of such financial impacts from COVID-19 or when, or if, it will seek recovery of such costs with the IUB.
MidAmerican Funding, LLC and Subsidiaries [Domain]
Segment Reporting Information [Line Items]
General/Organization and Operations	General MidAmerican Funding, LLC (" MidAmerican Funding ") is an Iowa limited liability company with Berkshire Hathaway Energy Company (" BHE ") as its sole member. BHE is a holding company based in Des Moines, Iowa, that owns subsidiaries principally engaged in energy businesses. BHE is a consolidated subsidiary of Berkshire Hathaway Inc. (" Berkshire Hathaway "). MidAmerican Funding 's direct, wholly owned subsidiary is MHC Inc. ("MHC"), which constitutes substantially all of MidAmerican Funding 's assets, liabilities and business activities except those related to MidAmerican Funding 's long-term debt securities. MHC conducts no business other than the ownership of its subsidiaries. MHC's principal subsidiary is MidAmerican Energy Company ("MidAmerican Energy"), a public utility with electric and natural gas operations, and its direct, wholly owned nonregulated subsidiary is Midwest Capital Group, Inc. The unaudited Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information and the United States Securities and Exchange Commission's rules and regulations for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the disclosures required by GAAP for annual financial statements. Management believes the unaudited Consolidated Financial Statements contain all adjustments (consisting only of normal recurring adjustments) considered necessary for the fair presentation of the unaudited Consolidated Financial Statements as of June 30, 2020 , and for the three- and six-month periods ended June 30, 2020 and 2019 . The Consolidated Statements of Comprehensive Income have been omitted as net income materially equals comprehensive income for the three- and six-month periods ended June 30, 2020 and 2019 . The results of operations for the three- and six-month periods ended June 30, 2020 , are not necessarily indicative of the results to be expected for the full year. The preparation of the unaudited Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the unaudited Consolidated Financial Statements and the reported amounts of revenue and expenses during the period. Actual results may differ from the estimates used in preparing the unaudited Consolidated Financial Statements. Note 2 of Notes to Consolidated Financial Statements included in MidAmerican Funding 's Annual Report on Form 10-K for the year ended December 31, 2019 , describes the most significant accounting policies used in the preparation of the unaudited Consolidated Financial Statements. There have been no significant changes in MidAmerican Funding 's assumptions regarding significant accounting estimates and policies during the six-month period ended June 30, 2020 . Coronavirus Disease 2019 ("COVID-19") In March 2020, COVID-19 was declared a global pandemic and containment and mitigation measures were recommended worldwide, which has had an unprecedented impact on society in general and on economic conditions in the United States. COVID-19 has impacted many of MidAmerican Energy's customers ranging from high unemployment levels, an inability to pay bills and business closures or operating at reduced capacity levels. While COVID-19 has impacted MidAmerican Funding's financial results and operations through June 30, 2020, the impacts have not been material. However, more severe impacts may still occur that could adversely affect future financial results depending on the duration and extent of COVID-19. These impacts include, but are not limited to, lower operating revenue and higher bad debt expense. The duration and extent of COVID-19 and its future impact on MidAmerican Funding's business cannot be reasonably estimated at this time. Accordingly, significant estimates used in the preparation of MidAmerican Funding's unaudited Consolidated Financial Statements, including those associated with evaluations of certain long-lived assets and goodwill for impairment, expected credit losses on amounts owed to MidAmerican Funding and potential regulatory recovery of certain costs may be subject to significant adjustments in future periods. In May 2020, the Iowa Utilities Board ("IUB") issued an order authorizing MidAmerican Energy to use a regulatory asset account to track increased costs and other financial impacts, including changes in revenue, associated with COVID-19. At such time as MidAmerican Energy deems appropriate, it may initiate a proceeding with the IUB to seek recovery of such costs and other financial impacts. MidAmerican Energy cannot predict at this time the amount of such financial impacts from COVID-19 or when, or if, it will seek recovery of such costs with the IUB.
Nevada Power Company [Member]
Segment Reporting Information [Line Items]
General/Organization and Operations	General Nevada Power Company, together with its subsidiaries ("Nevada Power"), is a wholly owned subsidiary of NV Energy, Inc. ("NV Energy"), a holding company that also owns Sierra Pacific Power Company ("Sierra Pacific") and certain other subsidiaries. Nevada Power is a United States regulated electric utility company serving retail customers, including residential, commercial and industrial customers, primarily in the Las Vegas, North Las Vegas, Henderson and adjoining areas. NV Energy is an indirect wholly owned subsidiary of Berkshire Hathaway Energy Company (" BHE "). BHE is a holding company based in Des Moines, Iowa that owns subsidiaries principally engaged in energy businesses. BHE is a consolidated subsidiary of Berkshire Hathaway Inc. (" Berkshire Hathaway "). The unaudited Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information and the United States Securities and Exchange Commission's rules and regulations for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the disclosures required by GAAP for annual financial statements. Management believes the unaudited Consolidated Financial Statements contain all adjustments (consisting only of normal recurring adjustments) considered necessary for the fair presentation of the unaudited Consolidated Financial Statements as of June 30, 2020 and for the three- and six-month periods ended June 30, 2020 and 2019 . The Consolidated Statements of Comprehensive Income have been omitted as net income equals comprehensive income for the three- and six-month periods ended June 30, 2020 and 2019 . The results of operations for the three- and six-month periods ended June 30, 2020 are not necessarily indicative of the results to be expected for the full year. The preparation of the unaudited Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the unaudited Consolidated Financial Statements and the reported amounts of revenue and expenses during the period. Actual results may differ from the estimates used in preparing the unaudited Consolidated Financial Statements. Note 2 of Notes to Consolidated Financial Statements included in Nevada Power's Annual Report on Form 10-K for the year ended December 31, 2019 describes the most significant accounting policies used in the preparation of the unaudited Consolidated Financial Statements. There have been no significant changes in Nevada Power's assumptions regarding significant accounting estimates and policies during the six-month period ended June 30, 2020 . Coronavirus Disease 2019 ("COVID-19") In March 2020, COVID-19 was declared a global pandemic and containment and mitigation measures were recommended worldwide, which has had an unprecedented impact on society in general and on economic conditions in the United States. COVID-19 has impacted many of Nevada Power's customers ranging from high unemployment levels, an inability to pay bills and business closures or operating at reduced capacity levels. While COVID-19 has impacted Nevada Power's financial results and operations through June 30, 2020 , the impacts have not been material. However, more severe impacts may still occur that could adversely affect future financial results depending on the duration and extent of COVID-19. These impacts include, but are not limited to, lower operating revenue from reductions in the consumption of electricity by retail utility customers, particularly in the commercial, industrial and distribution only service customer classes as the longer term impacts of COVID-19 and related customer and governmental responses remain uncertain, and higher bad debt expense resulting from a higher than average level of write-offs of uncollectible accounts associated with the suspension of disconnections and late payment fees to assist customers. The duration and extent of COVID-19 and its future impact on Nevada Power's business cannot be reasonably estimated at this time. Accordingly, significant estimates used in the preparation of Nevada Power's unaudited Consolidated Financial Statements, including those associated with evaluations of certain long-lived assets for impairment, expected credit losses on amounts owed to Nevada Power and potential regulatory recovery of certain costs may be subject to significant adjustments in future periods. In March 2020, the PUCN issued an emergency order for Nevada Power to establish a regulatory asset account related to the costs of maintaining service to customers affected by COVID-19 whose services would have been terminated or disconnected under normally-applicable terms of service.
Sierra Pacific Power Company [Member]
Segment Reporting Information [Line Items]
General/Organization and Operations	General Sierra Pacific Power Company ("Sierra Pacific"), is a wholly owned subsidiary of NV Energy, Inc. ("NV Energy"), a holding company that also owns Nevada Power Company ("Nevada Power") and certain other subsidiaries. Sierra Pacific is a United States regulated electric utility company serving retail customers, including residential, commercial and industrial customers and regulated retail natural gas customers primarily in northern Nevada. NV Energy is an indirect wholly owned subsidiary of Berkshire Hathaway Energy Company (" BHE "). BHE is a holding company based in Des Moines, Iowa that owns subsidiaries principally engaged in energy businesses. BHE is a consolidated subsidiary of Berkshire Hathaway Inc. (" Berkshire Hathaway "). The unaudited Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information and the United States Securities and Exchange Commission's rules and regulations for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the disclosures required by GAAP for annual financial statements. Management believes the unaudited Financial Statements contain all adjustments (consisting only of normal recurring adjustments) considered necessary for the fair presentation of the unaudited Financial Statements as of June 30, 2020 and for the three- and six-month periods ended June 30, 2020 and 2019 . The Statements of Comprehensive Income have been omitted as net income equals comprehensive income for the three- and six-month periods ended June 30, 2020 and 2019 . The results of operations for the three- and six-month periods ended June 30, 2020 are not necessarily indicative of the results to be expected for the full year. The preparation of the unaudited Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the unaudited Financial Statements and the reported amounts of revenue and expenses during the period. Actual results may differ from the estimates used in preparing the unaudited Financial Statements. Note 2 of Notes to Financial Statements included in Sierra Pacific's Annual Report on Form 10-K for the year ended December 31, 2019 describes the most significant accounting policies used in the preparation of the unaudited Financial Statements. There have been no significant changes in Sierra Pacific's assumptions regarding significant accounting estimates and policies during the six-month period ended June 30, 2020 . Coronavirus Disease 2019 ("COVID-19") In March 2020, COVID-19 was declared a global pandemic and containment and mitigation measures were recommended worldwide, which has had an unprecedented impact on society in general and on economic conditions in the United States. COVID-19 has impacted many of Sierra Pacific's customers ranging from high unemployment levels, an inability to pay bills and business closures or operating at reduced capacity levels. While COVID-19 has impacted Sierra Pacific's financial results and operations through June 30, 2020 , the impacts have not been material. However, more severe impacts may still occur that could adversely affect future financial results depending on the duration and extent of COVID-19. These impacts include, but are not limited to, lower operating revenue from reductions in the consumption of electricity by retail utility customers, particularly in the commercial, industrial and distribution only service customer classes as the longer term impacts of COVID-19 and related customer and governmental responses remain uncertain, and higher bad debt expense resulting from a higher than average level of write-offs of uncollectible accounts associated with the suspension of disconnections and late payment fees to assist customers. The duration and extent of COVID-19 and its future impact on Sierra Pacific's business cannot be reasonably estimated at this time. Accordingly, significant estimates used in the preparation of Sierra Pacific's unaudited Financial Statements, including those associated with evaluations of certain long-lived assets for impairment, expected credit losses on amounts owed to Sierra Pacific and potential regulatory recovery of certain costs may be subject to significant adjustments in future periods. In March 2020, the PUCN issued an emergency order for Sierra Pacific to establish a regulatory asset account related to the costs of maintaining service to customers affected by COVID-19 whose services would have been terminated or disconnected under normally-applicable terms of service.

Business Combination Disclosure

Business Combination Disclosure Business Combination Disclosure (Notes)	6 Months Ended
	Jun. 30, 2020
Business Combinations [Abstract]
Business Combination Disclosure [Text Block]	Business Acquisitions On July 3, 2020, BHE entered into a Purchase and Sale Agreement (the "Purchase Agreement") with Dominion Energy, Inc. ("DEI") and Dominion Energy Questar Corporation ("Dominion Questar," and together with DEI, the "Sellers") to purchase substantially all of the natural gas transmission and storage business of DEI and Dominion Questar (the "Transaction"). As part of the Transaction, BHE will acquire 100% of Dominion Energy Transmission, Inc., Dominion Energy Carolina Gas Transmission, LLC and Dominion Energy Questar Pipeline, LLC; 50% of Iroquois Gas Transmission System L.P.; and a 25% economic interest in Dominion Energy Cove Point LNG, LP ("Cove Point"), consisting of 100% of the general partnership interest and 25% of the total limited partnership interests. BHE will be the operator of Cove Point after the Transaction. The assets to be acquired include over 7,700 miles of natural gas transmission lines, with approximately 20.8 billion cubic feet ("Bcf") per day of transportation capacity and 900 Bcf of operated natural gas storage with 364 Bcf of company-owned working storage capacity, and a liquefied natural gas ("LNG") export, import and storage facility, with LNG storage of 14.6 Bcf. The Transaction is valued at approximately $9.7 billion , consisting of a cash purchase price of approximately $4.0 billion , subject to adjustment for cash and indebtedness as of the closing, and the assumption of approximately $5.7 billion of existing indebtedness for borrowed money. BHE expects to fund the purchase price, net of cash acquired, with capital from its shareholders. The consummation of the transactions contemplated by the Purchase Agreement is subject to customary closing conditions, including without limitation (i) the expiration or termination of any applicable waiting periods under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended ("HSR Approval"), (ii) the approval by the Department of Energy (the "DOE") with respect to a change of control of Cove Point, which holds certain foreign LNG import and export authorizations subject to the DOE's jurisdiction; and (iii) the approval by the Federal Communications Commission ("FCC") with respect to the transfer of certain FCC licenses. The Transaction is expected to close in the fourth quarter of 2020, subject to satisfaction of the foregoing conditions, among other things. The Purchase Agreement provides that if HSR Approval has not been obtained on or before 75 days following execution of the Purchase Agreement, so long as they are not in material breach of any of their representations, warranties, covenants or other agreements under the Purchase Agreement, the Sellers may exclude from the sale certain entities that own and operate natural gas pipelines in the Western United States (such termination with respect to these certain entities, a "Q-Pipe Termination"). In the event of a Q-Pipe Termination, the Sellers will complete an internal reorganization that will exclude these certain entities from the transactions contemplated by the Purchase Agreement and the cash purchase price will be reduced as set forth in the Purchase Agreement.

Property, Plant and Equipment,

Property, Plant and Equipment, Net	6 Months Ended
	Jun. 30, 2020
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Net	Property, Plant and Equipment, Net Property, plant and equipment, net consists of the following (in millions): As of Depreciable June 30, December 31, Life 2020 2019 Regulated assets: Utility generation, transmission and distribution systems 5-80 years $ 81,518 $ 81,127 Interstate natural gas pipeline assets 3-80 years 8,215 8,165 89,733 89,292 Accumulated depreciation and amortization (26,921 ) (26,353 ) Regulated assets, net 62,812 62,939 Nonregulated assets: Independent power plants 5-30 years 7,004 6,983 Other assets 3-30 years 1,846 1,834 8,850 8,817 Accumulated depreciation and amortization (2,336 ) (2,183 ) Nonregulated assets, net 6,514 6,634 Net operating assets 69,326 69,573 Construction work-in-progress 4,499 3,732 Property, plant and equipment, net $ 73,825 $ 73,305 Construction work-in-progress includes $4.4 billion as of June 30, 2020 and $3.6 billion as of December 31, 2019 , related to the construction of regulated assets.
MidAmerican Funding, LLC and Subsidiaries [Domain]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Net	Property, Plant and Equipment, Net Refer to Note 3 of MidAmerican Energy's Notes to Financial Statements. In addition to MidAmerican Energy's property, plant and equipment, net, MidAmerican Funding had as of June 30, 2020 and December 31, 2019 , nonregulated property gross of $‑million and $3 million , respectively, and related accumulated depreciation and amortization of $- million and $1 million , respectively.
MidAmerican Energy Company [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Net	Property, Plant and Equipment, Net Property, plant and equipment, net consists of the following (in millions): As of June 30, December 31, Depreciable Life 2020 2019 Utility plant in service, net: Generation 20-70 years $ 15,800 $ 15,687 Transmission 52-75 years 2,208 2,124 Electric distribution 20-75 years 4,186 4,095 Natural gas distribution 29-75 years 1,844 1,820 Utility plant in service 24,038 23,726 Accumulated depreciation and amortization (6,388 ) (6,139 ) Utility plant in service, net 17,650 17,587 Nonregulated property, net: Nonregulated property gross 20-50 years 7 7 Accumulated depreciation and amortization (1 ) (1 ) Nonregulated property, net 6 6 17,656 17,593 Construction work-in-progress 1,100 782 Property, plant and equipment, net $ 18,756 $ 18,375
PacifiCorp [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Net	Property, Plant and Equipment, Net Property, plant and equipment, net consists of the following (in millions): As of June 30, December 31, Depreciable Life 2020 2019 Utility Plant: Generation 14 - 67 years $ 12,463 $ 12,509 Transmission 58 - 75 years 6,564 6,482 Distribution 20 - 70 years 7,439 7,307 Intangible plant (1) 5 - 75 years 1,026 1,016 Other 5 - 60 years 1,468 1,449 Utility plant in service 28,960 28,763 Accumulated depreciation and amortization (9,863 ) (9,803 ) Utility plant in-service, net 19,097 18,960 Other non-regulated, net of accumulated depreciation and amortization 59 years 9 10 Plant, net 19,106 18,970 Construction work-in-progress 2,447 2,003 Property, plant and equipment, net $ 21,553 $ 20,973 (1) Computer software costs included in intangible plant are initially assigned a depreciable life of 5 to 10 years. For the six-month period ended June 30, 2020 , PacifiCorp acquired wind turbines from BHE Wind, LLC, an indirect wholly owned subsidiary of BHE, for $147 million . The wind turbines will be installed as part of newly constructed wind-powered generating facilities that are planned to be placed in service in 2020.
Nevada Power Company [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Net	Property, Plant and Equipment, Net Property, plant and equipment, net consists of the following (in millions): As of Depreciable Life June 30, December 31, 2020 2019 Utility plant: Generation 30 - 55 years $ 3,617 $ 3,541 Transmission 45 - 70 years 1,485 1,444 Distribution 20 - 65 years 3,683 3,567 General and intangible plant 5 - 65 years 786 741 Utility plant 9,571 9,293 Accumulated depreciation and amortization (3,079 ) (2,951 ) Utility plant, net 6,492 6,342 Other non-regulated, net of accumulated depreciation and amortization 45 years 1 1 Plant, net 6,493 6,343 Construction work-in-progress 156 195 Property, plant and equipment, net $ 6,649 $ 6,538
Sierra Pacific Power Company [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Net	Property, Plant and Equipment, Net Property, plant and equipment, net consists of the following (in millions): As of Depreciable Life June 30, December 31, 2020 2019 Utility plant: Electric generation 25 - 60 years $ 1,130 $ 1,133 Electric transmission 50 - 100 years 879 840 Electric distribution 20 - 100 years 1,700 1,669 Electric general and intangible plant 5 - 70 years 184 178 Natural gas distribution 35 - 70 years 422 417 Natural gas general and intangible plant 5 - 70 years 14 14 Common general 5 - 70 years 344 338 Utility plant 4,673 4,589 Accumulated depreciation and amortization (1,699 ) (1,629 ) Utility plant, net 2,974 2,960 Other non-regulated, net of accumulated depreciation and amortization 70 years 2 2 Plant, net 2,976 2,962 Construction work-in-progress 123 113 Property, plant and equipment, net $ 3,099 $ 3,075

Investments and Restricted Cash

Investments and Restricted Cash and Investments	6 Months Ended
	Jun. 30, 2020
Restricted Cash and Cash Equivalents Items [Line Items]
Investments and Restricted Cash and Investments	Investments and Restricted Cash and Cash Equivalents and Investments Investments and restricted cash and cash equivalents and investments consists of the following (in millions): As of June 30, December 31, 2020 2019 Investments: BYD Company Limited common stock $ 1,737 $ 1,122 Rabbi trusts 396 410 Other 191 187 Total investments 2,324 1,719 Equity method investments: BHE Renewables tax equity investments 4,183 3,130 Electric Transmission Texas, LLC 580 555 Bridger Coal Company 83 81 Other 108 181 Total equity method investments 4,954 3,947 Restricted cash and cash equivalents and investments: Quad Cities Station nuclear decommissioning trust funds 607 599 Other restricted cash and cash equivalents 255 230 Total restricted cash and cash equivalents and investments 862 829 Total investments and restricted cash and cash equivalents and investments $ 8,140 $ 6,495 Reflected as: Current assets $ 266 $ 240 Noncurrent assets 7,874 6,255 Total investments and restricted cash and cash equivalents and investments $ 8,140 $ 6,495 Investments Gains (losses) on marketable securities, net recognized during the period consists of the following (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Unrealized gains (losses) recognized on marketable securities still held at the reporting date $ 584 $ 7 $ 609 $ (61 ) Net (losses) gains recognized on marketable securities sold during the period (1 ) (1 ) 1 (1 ) Gains (losses) on marketable securities, net $ 583 $ 6 $ 610 $ (62 ) Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Cash equivalents consist of funds invested in money market mutual funds, United States Treasury Bills and other investments with a maturity of three months or less when purchased. Cash and cash equivalents exclude amounts where availability is restricted by legal requirements, loan agreements or other contractual provisions. Restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , consist substantially of funds restricted for the purpose of constructing solid waste facilities under tax-exempt bond obligation agreements and debt service obligations for certain of the Company's nonregulated renewable energy projects. A reconciliation of cash and cash equivalents and restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , as presented in the Consolidated Statements of Cash Flows is outlined below and disaggregated by the line items in which they appear on the Consolidated Balance Sheets (in millions): As of June 30, December 31, 2020 2019 Cash and cash equivalents $ 1,815 $ 1,040 Restricted cash and cash equivalents 237 212 Investments and restricted cash and cash equivalents and investments 18 16 Total cash and cash equivalents and restricted cash and cash equivalents $ 2,070 $ 1,268

Regulatory Matters

Regulatory Matters	6 Months Ended
	Jun. 30, 2020
Nevada Power Company [Member]
Schedule Of Regulatory Assets and Liabilities [Line Items]
Regulatory Matters	Regulatory Matters Deferred Energy Nevada statutes permit regulated utilities to adopt deferred energy accounting procedures. The intent of these procedures is to ease the effect on customers of fluctuations in the cost of purchased natural gas, fuel and electricity and are subject to annual prudency review by the PUCN. Under deferred energy accounting, to the extent actual fuel and purchased power costs exceed fuel and purchased power costs recoverable through current rates that excess is not recorded as a current expense on the Consolidated Statements of Operations but rather is deferred and recorded as a regulatory asset on the Consolidated Balance Sheets. Conversely, a regulatory liability is recorded to the extent fuel and purchased power costs recoverable through current rates exceed actual fuel and purchased power costs. These excess amounts are reflected in quarterly adjustments to rates and recorded as cost of fuel and energy in future time periods. 2017 Tax Reform In February 2018, Nevada Power made a filing with the PUCN proposing a tax rate reduction rider for the lower annual income tax expense anticipated to result from 2017 Tax Reform for 2018 and beyond. In March 2018, the PUCN issued an order approving the rate reduction proposed by Nevada Power . The new rates were effective April 1, 2018. The order extended the procedural schedule to allow parties additional discovery relevant to 2017 Tax Reform and a hearing was held in July 2018. In September 2018, the PUCN issued an order directing Nevada Power to record the amortization of any excess protected accumulated deferred income tax arising from the 2017 Tax Reform as a regulatory liability effective January 1, 2018. Subsequently, Nevada Power filed a petition for reconsideration relating to the amortization of protected excess accumulated deferred income tax balances resulting from the 2017 Tax Reform. In November 2018, the PUCN issued an order granting reconsideration and reaffirming the September 2018 order. In December 2018, Nevada Power filed a petition for judicial review. The judicial review occurred in January 2020 and the district court issued an order in March 2020 denying the petition and affirming the PUCN's order. In May 2020, Nevada Power filed a notice of appeal to the Nevada Supreme Court of the district court's order. Natural Disaster Protection Plan In May 2019, Senate Bill 329 ("SB 329"), Natural Disaster Mitigation Measures, was signed into law, which requires Nevada Power to submit a natural disaster protection plan to the PUCN. The PUCN adopted natural disaster protection plan regulations in January 2020, that require Nevada Power to file their natural disaster protection plan for approval on or before March 1 of every third year, with the first filing due on March 1, 2020. The regulations also require annual updates to be filed on or before September 1 of the second and third years of the plan. The plan must include procedures, protocols and other certain information as it relates to the efforts of Nevada Power to prevent or respond to a fire or other natural disaster. The expenditures incurred by Nevada Power in developing and implementing the natural disaster protection plan are required to be held in a regulatory asset account, with Nevada Power filing an application for recovery on or before March 1 of each year. Nevada Power submitted their initial natural disaster protection plan to the PUCN and filed their first application seeking recovery of 2019 expenditures in February 2020. In June 2020, a hearing was held and an order is expected in late August 2020.
Sierra Pacific Power Company [Member]
Schedule Of Regulatory Assets and Liabilities [Line Items]
Regulatory Matters	Regulatory Matters Deferred Energy Nevada statutes permit regulated utilities to adopt deferred energy accounting procedures. The intent of these procedures is to ease the effect on customers of fluctuations in the cost of purchased natural gas, fuel and electricity and are subject to annual prudency review by the PUCN. Under deferred energy accounting, to the extent actual fuel and purchased power costs exceed fuel and purchased power costs recoverable through current rates that excess is not recorded as a current expense on the Statements of Operations but rather is deferred and recorded as a regulatory asset on the Balance Sheets. Conversely, a regulatory liability is recorded to the extent fuel and purchased power costs recoverable through current rates exceed actual fuel and purchased power costs. These excess amounts are reflected in quarterly adjustments to rates and recorded as cost of fuel and energy in future time periods. Regulatory Rate Review In June 2019, Sierra Pacific filed an electric regulatory rate review with the PUCN. The filing supported an annual revenue increase of $5 million but requested an annual revenue reduction of $5 million . In September 2019, Sierra Pacific filed an all-party settlement for the electric regulatory rate review. The settlement resolved all cost of capital and revenue requirement issues and provided for an annual revenue reduction of $5 million and required Sierra Pacific to share 50% of regulatory earnings above 9.7% with its customers. The rate design portion of the regulatory rate review was not a part of the settlement and a hearing on rate design was held in November 2019. In December 2019, the PUCN issued an order approving the stipulation but made some adjustments to the methodology for the weather normalization component of historical sales in rates, which resulted in an additional annual revenue reduction of $3 million . The new rates were effective January 1, 2020. In January 2020, Sierra Pacific filed a petition for rehearing challenging the PUCN's adjustments to the weather normalization methodology. In February 2020, the PUCN issued an order granting the petition for rehearing. In April 2020, the PUCN issued a final order approving a weather normalization methodology that changed the additional annual revenue reduction from $3 million to $2 million with an effective date of January 1, 2020. 2017 Tax Reform In February 2018, Sierra Pacific made a filing with the PUCN proposing a tax rate reduction rider for the lower annual income tax expense anticipated to result from 2017 Tax Reform for 2018 and beyond. In March 2018, the PUCN issued an order approving the rate reduction proposed by Sierra Pacific . The new rates were effective April 1, 2018. The order extended the procedural schedule to allow parties additional discovery relevant to 2017 Tax Reform and a hearing was held in July 2018. In September 2018, the PUCN issued an order directing Sierra Pacific to record the amortization of any excess protected accumulated deferred income tax arising from the 2017 Tax Reform as a regulatory liability effective January 1, 2018. Subsequently, Sierra Pacific filed a petition for reconsideration relating to the amortization of protected excess accumulated deferred income tax balances resulting from the 2017 Tax Reform. In November 2018, the PUCN issued an order granting reconsideration and reaffirming the September 2018 order. In December 2018, Sierra Pacific filed a petition for judicial review. The judicial review occurred in January 2020 and the district court issued an order in March 2020 denying the petition and affirming the PUCN's order. In May 2020, Sierra Pacific filed a notice of appeal to the Nevada Supreme Court of the district court's order. Natural Disaster Protection Plan In May 2019, Senate Bill 329 ("SB 329"), Natural Disaster Mitigation Measures, was signed into law, which requires Sierra Pacific to submit a natural disaster protection plan to the PUCN. The PUCN adopted natural disaster protection plan regulations in January 2020, that require Sierra Pacific to file their natural disaster protection plan for approval on or before March 1 of every third year, with the first filing due on March 1, 2020. The regulations also require annual updates to be filed on or before September 1 of the second and third years of the plan. The plan must include procedures, protocols and other certain information as it relates to the efforts of Sierra Pacific to prevent or respond to a fire or other natural disaster. The expenditures incurred by Sierra Pacific in developing and implementing the natural disaster protection plan are required to be held in a regulatory asset account, with Sierra Pacific filing an application for recovery on or before March 1 of each year. Sierra Pacific submitted their initial natural disaster protection plan to the PUCN and filed their first application seeking recovery of 2019 expenditures in February 2020. In June 2020, a hearing was held and an order is expected in late August 2020.

Cash and Cash Equivalents and R

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Supplemental Cash Flow Disclosures (Notes)	6 Months Ended
	Jun. 30, 2020
Sierra Pacific Power Company [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Cash Flow, Supplemental Disclosures [Text Block]	Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Cash equivalents consist of funds invested in money market mutual funds, United States Treasury Bills and other investments with a maturity of three months or less when purchased. Cash and cash equivalents exclude amounts where availability is restricted by legal requirements, loan agreements or other contractual provisions. Restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , consist of funds restricted by the Public Utilities Commission of Nevada ("PUCN") for a certain renewable energy contract. A reconciliation of cash and cash equivalents and restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , as presented in the Statements of Cash Flows is outlined below and disaggregated by the line items in which they appear on the Balance Sheets (in millions): As of June 30, December 31, 2020 2019 Cash and cash equivalents $ 12 $ 27 Restricted cash and cash equivalents included in other current assets 5 5 Total cash and cash equivalents and restricted cash and cash equivalents $ 17 $ 32
Nevada Power Company [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Cash Flow, Supplemental Disclosures [Text Block]	Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Cash equivalents consist of funds invested in money market mutual funds, United States Treasury Bills and other investments with a maturity of three months or less when purchased. Cash and cash equivalents exclude amounts where availability is restricted by legal requirements, loan agreements or other contractual provisions. Restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , consist of funds restricted by the Public Utilities Commission of Nevada ("PUCN") for a certain renewable energy contract. A reconciliation of cash and cash equivalents and restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , as presented in the Consolidated Statements of Cash Flows is outlined below and disaggregated by the line items in which they appear on the Consolidated Balance Sheets (in millions): As of June 30, December 31, 2020 2019 Cash and cash equivalents $ 16 $ 15 Restricted cash and cash equivalents included in other current assets 9 10 Total cash and cash equivalents and restricted cash and cash equivalents $ 25 $ 25
PacifiCorp [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Cash Flow, Supplemental Disclosures [Text Block]	Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Cash equivalents consist of funds invested in money market mutual funds, United States Treasury Bills and other investments with a maturity of three months or less when purchased. Cash and cash equivalents exclude amounts where availability is restricted by legal requirements, loan agreements or other contractual provisions. Restricted cash and cash equivalents consist substantially of funds representing escrow accounts for disputes, vendor retention, custodial and nuclear decommissioning funds. Restricted amounts are included in other current assets and other assets on the Consolidated Balance Sheets. A reconciliation of cash and cash equivalents and restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , as presented in the Consolidated Statements of Cash Flows is outlined below and disaggregated by the line items in which they appear on the Consolidated Balance Sheets (in millions): As of June 30, December 31, 2020 2019 Cash and cash equivalents $ 711 $ 30 Restricted cash included in other current assets 5 4 Restricted cash included in other assets 3 2 Total cash and cash equivalents and restricted cash and cash equivalents $ 719 $ 36
MidAmerican Funding, LLC and Subsidiaries [Domain]
Condensed Cash Flow Statements, Captions [Line Items]
Cash Flow, Supplemental Disclosures [Text Block]	Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Cash equivalents consist of funds invested in money market mutual funds, United States Treasury Bills and other investments with a maturity of three months or less when purchased. Cash and cash equivalents exclude amounts where availability is restricted by legal requirements, loan agreements or other contractual provisions. Restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , consist substantially of funds restricted for the purpose of constructing solid waste facilities under tax-exempt bond obligation agreements and for wildlife preservation. A reconciliation of cash and cash equivalents and restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , as presented in the Consolidated Statements of Cash Flows is outlined below and disaggregated by the line items in which they appear on the Consolidated Balance Sheets (in millions): As of June 30 December 31 2020 2019 Cash and cash equivalents $ 8 $ 288 Restricted cash and cash equivalents in other current assets 27 43 Total cash and cash equivalents and restricted cash and cash equivalents $ 35 $ 331
MidAmerican Energy Company [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Cash Flow, Supplemental Disclosures [Text Block]	Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Cash equivalents consist of funds invested in money market mutual funds, United States Treasury Bills and other investments with a maturity of three months or less when purchased. Cash and cash equivalents exclude amounts where availability is restricted by legal requirements, loan agreements or other contractual provisions. Restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , consist substantially of funds restricted for the purpose of constructing solid waste facilities under tax-exempt bond obligation agreements and for wildlife preservation. A reconciliation of cash and cash equivalents and restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , as presented in the Statements of Cash Flows is outlined below and disaggregated by the line items in which they appear on the Balance Sheets (in millions): As of June 30, December 31 2020 2019 Cash and cash equivalents $ 5 $ 287 Restricted cash and cash equivalents in other current assets 27 43 Total cash and cash equivalents and restricted cash and cash equivalents $ 32 $ 330

Recent Financing Transactions

Recent Financing Transactions	6 Months Ended
	Jun. 30, 2020
Debt Instrument [Line Items]
Recent Financing Transactions	Recent Financing Transactions Long-Term Debt In June 2020, Northern Powergrid (Northeast) plc issued £300 million of its 1.875% Green Bonds due June 2062 and intends to use the net proceeds to finance and refinance eligible green projects in certain categories within Northern Powergrid's green project portfolio. In April 2020, PacifiCorp issued $400 million of its 2.70% First Mortgage Bonds due 2030 and $600 million of its 3.30% First Mortgage Bonds due 2051. PacifiCorp intends to use the net proceeds to fund capital expenditures, primarily for renewable resources and associated transmission projects, and for general corporate purposes. In March 2020, BHE issued $1.25 billion of its 4.05% Senior Notes due 2025, $1.1 billion of its 3.70% Senior Notes due 2030 and $900 million of its 4.25% Senior Notes due 2050. BHE used the net proceeds to refinance a portion of the Company's short-term indebtedness and for general corporate purposes. In January 2020, Nevada Power issued $425 million of its 2.40% General and Refunding Mortgage Notes, Series DD, due 2030 and $300 million of its 3.125% General and Refunding Mortgage Notes, Series EE, due 2050. Nevada Power used the net proceeds for the early redemption of $575 million of its 2.75% General and Refunding Mortgage Notes, Series BB, due April 2020 and for general corporate purposes. In January 2020, Pinyon Pines I and II issued $382 million of fifteen year variable-rate term loans due 2034 with a portion of the proceeds used to repay $284 million of existing variable-rate term loans due April 2020. The new term loans amortize semiannually and have variable interest rates based on LIBOR plus a margin that varies during the terms of the agreements. The Company has entered into interest rate swaps that fix the interest rate on 100% of the new term loans. The variable interest rate as of June 30, 2020 was 1.80% while the fixed interest rate as of June 30, 2020 was 3.23% . Credit Facilities In May 2020, MidAmerican Energy terminated its $400 million unsecured credit facility expiring August 2020 and entered into a $600 million unsecured credit facility, which expires May 2021, with an option to extend for up to three months, and has a variable rate based on the Eurodollar rate or a base rate, at MidAmerican Energy's option, plus a spread. The facility requires that MidAmerican Energy's ratio of consolidated debt to total capitalization not exceed 0.65 to 1.0 as of the last day of any quarter. In April 2020, AltaLink entered into a C$100 million revolving credit facility expiring April 2021 with a recurring one-year extension option subject to lender consent. The credit facility requires that AltaLink's ratio of consolidated debt to total capitalization not exceed 0.75 to 1.0 as of the last day of each quarter. In April 2020, AltaLink Investments, L.P. entered into a C$200 million revolving term credit facility expiring April 2021 with a recurring one-year extension option subject to lender consent. The credit facility requires that AltaLink Investments, L.P.'s ratio of consolidated debt to total capitalization not exceed 0.80 to 1.0 as of the last day of each quarter.
Nevada Power Company [Member]
Debt Instrument [Line Items]
Recent Financing Transactions	Recent Financing Transactions Long-Term Debt In May 2020, Nevada Power repurchased and entered into a re-offering of the following series of fixed-rate tax-exempt bonds: $40 million of its Coconino County Pollution Control Refunding Revenue Bonds, Series 2017A, due 2032; $13 million of its Coconino County Pollution Control Refunding Revenue Bonds, Series 2017B, due 2039; and $40 million of its Clark County Pollution Control Refunding Revenue Bonds, Series 2017, due 2036. The Series 2017A bond was offered at a fixed rate of 1.875% and the Series 2017B and Series 2017 bonds were offered at a fixed rate of 1.65% . In January 2020, Nevada Power issued $425 million of 2.40% General and Refunding Mortgage Notes, Series DD, due 2030 and $300 million of its 3.125% General and Refunding Mortgage Notes, Series EE, due 2050. Nevada Power used the net proceeds for the early redemption of $575 million of its 2.75% General and Refunding Mortgage Notes, Series BB, due April 2020 and for general corporate purposes.
PacifiCorp [Member]
Debt Instrument [Line Items]
Recent Financing Transactions	Recent Financing Transactions Long-Term Debt In April 2020, PacifiCorp issued $400 million of its 2.70% First Mortgage Bonds due 2030 and $600 million of its 3.30% First Mortgage Bonds due 2051. PacifiCorp intends to use the net proceeds to fund capital expenditures, primarily for renewable resources and associated transmission projects, and for general corporate purposes.
MidAmerican Energy Company [Member]
Debt Instrument [Line Items]
Recent Financing Transactions	Recent Financing Transactions Credit Facilities In May 2020, MidAmerican Energy terminated its $400 million unsecured credit facility expiring August 2020 and entered into a $600 million unsecured credit facility, which expires May 2021, with an option to extend for up to three months, and has a variable rate based on the Eurodollar rate or a base rate, at MidAmerican Energy's option, plus a spread. The facility requires that MidAmerican Energy's ratio of consolidated debt, including current maturities, to total capitalization not exceed 0.65 to 1.0 as of the last day of any quarter.
MidAmerican Funding, LLC and Subsidiaries [Domain]
Debt Instrument [Line Items]
Recent Financing Transactions	Recent Financing Transactions Refer to Note 4 of MidAmerican Energy's Notes to Financial Statements.
Sierra Pacific Power Company [Member]
Debt Instrument [Line Items]
Recent Financing Transactions	Recent Financing Transactions Long-Term Debt In April 2020, Sierra Pacific entered into a re-offering of the following series of tax-exempt bonds that were held in treasury: $30 million of its Washoe County Water Facilities Refunding Revenue Bonds, Series 2016C, due 2036; $59 million of its Washoe County Gas Facilities Refunding Revenue Bonds, Series 2016A, due 2031; and $20 million of its Humboldt County Water Facilities Refunding Revenue Bonds, Series 2016A, due 2029. The interest rate mode of these bonds was changed to a variable rate from an annual fixed rate. Sierra Pacific holds these bonds and they could be issued at a future date if deemed necessary.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2020
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Income Tax Disclosure [Text Block]	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 Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Federal statutory income tax rate 21 % 21 % 21 % 21 % Income tax credits (20 ) (29 ) (28 ) (29 ) State income tax, net of federal income tax benefit 2 — 1 (8 ) Income tax effect of foreign income (2 ) (1 ) (2 ) (2 ) Effects of ratemaking (1 ) (2 ) (3 ) (2 ) Other, net (1 ) (1 ) (1 ) — Effective income tax rate (1 )% (12 )% (12 )% (20 )% Income tax credits relate primarily to production tax credits ("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. The Company's provision for income taxes has been computed on a stand-alone basis. Berkshire Hathaway includes the Company in its consolidated United States federal and Iowa state income tax returns and the majority of the Company's United States federal income tax is remitted to or received from Berkshire Hathaway . For the six-month periods ended June 30, 2020 and 2019 , the Company made payments for federal income taxes to Berkshire Hathaway totaling $100 million and $- million, respectively.
PacifiCorp [Member]
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Income Tax Disclosure [Text Block]	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 Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Federal statutory income tax rate 21 % 21 % 21 % 21 % State income tax, net of federal income tax benefit 3 3 3 3 Federal income tax credits (9 ) (4 ) (10 ) (4 ) Effects of ratemaking (1 ) (1 ) (1 ) (1 ) Amortization of excess deferred income taxes (1 ) — (10 ) — Other 1 (1 ) — — Effective income tax rate 14 % 18 % 3 % 19 % 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. Amortization of excess deferred income taxes is primarily attributable to the amortization of $30 million of Oregon allocated excess deferred income taxes pursuant to the Oregon Renewable Adjustment Clause settlement, whereby a portion of Oregon allocated excess deferred income taxes was used to accelerate depreciation on Oregon's share of certain repowered wind facilities. Berkshire Hathaway includes BHE and its subsidiaries in its United States 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, 2020 and 2019, PacifiCorp made net cash payments for federal and state income tax to BHE totaling $42 million and $11 million , respectively.
Sierra Pacific Power Company [Member]
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Income Tax Disclosure [Text Block]	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 Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Federal statutory income tax rate 21 % 21 % 21 % 21 % Effects of ratemaking (14 ) 1 (10 ) 1 Other — — (1 ) — Effective income tax rate 7 % 22 % 10 % 22 % 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.
MidAmerican Energy Company [Member]
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Income Tax Disclosure [Text Block]	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 Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Federal statutory income tax rate 21 % 21 % 21 % 21 % Income tax credits (186 ) (158 ) (257 ) (131 ) State income tax, net of federal income tax benefit (35 ) (22 ) (33 ) (21 ) Effects of ratemaking (9 ) (10 ) (7 ) (9 ) Other, net 2 — 1 (1 ) Effective income tax rate (207 )% (169 )% (275 )% (141 )% 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. Berkshire Hathaway includes BHE and subsidiaries in its United States 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 . The timing of MidAmerican Energy's income tax cash flows from period to period can be significantly affected by the estimated federal income tax payment methods and assumptions for each payment date. MidAmerican Energy made net cash payments for income tax to BHE totaling $19 million and $9 million for the six-month periods ended June 30, 2020 and 2019 , respectively.
MidAmerican Funding, LLC and Subsidiaries [Domain]
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Income Tax Disclosure [Text Block]	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 Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Federal statutory income tax rate 21 % 21 % 21 % 21 % Income tax credits (192 ) (171 ) (269 ) (139 ) State income tax, net of federal income tax benefit (37 ) (25 ) (35 ) (23 ) Effects of ratemaking (9 ) (11 ) (7 ) (9 ) Other, net 2 3 1 — Effective income tax rate (215 )% (183 )% (289 )% (150 )% 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. Berkshire Hathaway includes BHE and subsidiaries in its United States 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 . The timing of MidAmerican Funding's income tax cash flows from period to period can be significantly affected by the estimated federal income tax payment methods and assumptions for each payment date. MidAmerican Funding made net cash payments for income tax to BHE totaling $19 million and $8 million for the six-month period ended June 30, 2020 and 2019 , respectively.

Employee Benefit Plans

Employee Benefit Plans	6 Months Ended
	Jun. 30, 2020
Defined Benefit Plan Disclosure [Line Items]
Employee Benefit Plans	Employee Benefit Plans Domestic Operations Net periodic benefit cost (credit) for the domestic pension and other postretirement benefit plans included the following components (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Pension: Service cost $ 4 $ 4 $ 7 $ 8 Interest cost 23 28 46 55 Expected return on plan assets (35 ) (39 ) (70 ) (77 ) Net amortization 8 7 17 16 Net periodic benefit cost $ — $ — $ — $ 2 Other postretirement: Service cost $ 3 $ 3 $ 4 $ 5 Interest cost 4 8 10 14 Expected return on plan assets (7 ) (10 ) (16 ) (20 ) Net amortization (3 ) (1 ) (4 ) (3 ) Net periodic benefit credit $ (3 ) $ — $ (6 ) $ (4 ) Amounts other than the service cost for pension and other postretirement benefit plans are recorded in Other, net in the Consolidated Statements of Operations. Employer contributions to the domestic pension and other postretirement benefit plans are expected to be $13 million and $1 million , respectively, during 2020 . As of June 30, 2020 , $6 million and $- million of contributions had been made to the domestic pension and other postretirement benefit plans, respectively. Foreign Operations Net periodic benefit (credit) cost for the United Kingdom pension plan included the following components (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Service cost $ 4 $ 4 $ 8 $ 8 Interest cost 10 13 20 26 Expected return on plan assets (25 ) (25 ) (50 ) (50 ) Net amortization 11 9 21 18 Net periodic benefit (credit) cost $ — $ 1 $ (1 ) $ 2 Amounts other than the service cost for the United Kingdom pension plan are recorded in Other, net in the Consolidated Statements of Operations. Employer contributions to the United Kingdom pension plan are expected to be £43 million during 2020 . As of June 30, 2020 , £21 million , or $27 million , of contributions had been made to the United Kingdom pension plan.
PacifiCorp [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee Benefit Plans	Employee Benefit Plans Net periodic benefit credit for the pension and other postretirement benefit plans included the following components (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Pension: Service cost $ — $ — $ — $ — Interest cost 9 11 18 22 Expected return on plan assets (14 ) (16 ) (28 ) (33 ) Net amortization 4 3 9 6 Net periodic benefit credit $ (1 ) $ (2 ) (1 ) (5 ) Other postretirement: Service cost $ 1 $ 1 $ 1 $ 1 Interest cost 2 3 5 6 Expected return on plan assets (3 ) (5 ) (7 ) (10 ) Net amortization — — — — Net periodic benefit credit $ — $ (1 ) (1 ) (3 ) Amounts other than the service cost for pension and other postretirement benefit plans are recorded in Other, net in the Consolidated Statements of Operations. Employer contributions to the pension and other postretirement benefit plans are expected to be $4 million and $- million, respectively, during 2020 . As of June 30, 2020 , $2 million and $- million of contributions had been made to the pension and other postretirement benefit plans, respectively.
MidAmerican Energy Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee Benefit Plans	Employee Benefit Plans MidAmerican Energy sponsors a noncontributory defined benefit pension plan covering a majority of all employees of BHE and its domestic energy subsidiaries other than PacifiCorp and NV Energy, Inc. MidAmerican Energy also sponsors certain postretirement healthcare and life insurance benefits covering substantially all retired employees of BHE and its domestic energy subsidiaries other than PacifiCorp and NV Energy, Inc. Net periodic benefit credit for the plans of MidAmerican Energy and the aforementioned affiliates included the following components (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Pension: Service cost $ 1 $ 1 $ 2 $ 3 Interest cost 6 8 12 15 Expected return on plan assets (10 ) (11 ) (20 ) (21 ) Net amortization 1 — 1 — Net periodic benefit credit $ (2 ) $ (2 ) $ (5 ) $ (3 ) Other postretirement: Service cost $ 1 $ 2 $ 2 $ 3 Interest cost 1 3 3 5 Expected return on plan assets (3 ) (3 ) (6 ) (6 ) Net amortization (2 ) (1 ) (3 ) (2 ) Net periodic benefit (credit) cost $ (3 ) $ 1 $ (4 ) $ — Amounts other than the service cost for pension and other postretirement benefit plans are recorded in Other, net in the Statements of Operations. Employer contributions to the pension and other postretirement benefit plans are expected to be $7 million and $1 million , respectively, during 2020 . As of June 30, 2020 , $3 million and $- million of contributions had been made to the pension and other postretirement benefit plans, respectively.
MidAmerican Funding, LLC and Subsidiaries [Domain]
Defined Benefit Plan Disclosure [Line Items]
Employee Benefit Plans	Employee Benefit Plans Refer to Note 6 of MidAmerican Energy's Notes to Financial Statements.
Nevada Power Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee Benefit Plans	Employee Benefit Plans Nevada Power is a participant in benefit plans sponsored by NV Energy. The NV Energy Retirement Plan includes a qualified pension plan ("Qualified Pension Plan") and a supplemental executive retirement plan and a restoration plan (collectively, "Non‑Qualified Pension Plans") that provide pension benefits for eligible employees. The NV Energy Comprehensive Welfare Benefit and Cafeteria Plan provides certain postretirement health care and life insurance benefits for eligible retirees ("Other Postretirement Plans") on behalf of Nevada Power. Amounts attributable to Nevada Power were allocated from NV Energy based upon the current, or in the case of retirees, previous, employment location. Offsetting regulatory assets and liabilities have been recorded related to the amounts not yet recognized as a component of net periodic benefit costs that will be included in regulated rates. Net periodic benefit costs not included in regulated rates are included in accumulated other comprehensive loss, net. Amounts payable to NV Energy are included on the Consolidated Balance Sheets and consist of the following (in millions): As of June 30, December 31, 2020 2019 Qualified Pension Plan: Other long-term liabilities $ 18 $ 18 Non-Qualified Pension Plans: Other current liabilities 1 1 Other long-term liabilities 9 9 Other Postretirement Plans: Other long-term liabilities 2 2
Sierra Pacific Power Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee Benefit Plans	Employee Benefit Plans Sierra Pacific is a participant in benefit plans sponsored by NV Energy. The NV Energy Retirement Plan includes a qualified pension plan ("Qualified Pension Plan") and a supplemental executive retirement plan and a restoration plan (collectively, "Non‑Qualified Pension Plans") that provide pension benefits for eligible employees. The NV Energy Comprehensive Welfare Benefit and Cafeteria Plan provides certain postretirement health care and life insurance benefits for eligible retirees ("Other Postretirement Plans") on behalf of Sierra Pacific. Amounts attributable to Sierra Pacific were allocated from NV Energy based upon the current, or in the case of retirees, previous, employment location. Offsetting regulatory assets and liabilities have been recorded related to the amounts not yet recognized as a component of net periodic benefit costs that will be included in regulated rates. Net periodic benefit costs not included in regulated rates are included in accumulated other comprehensive loss, net. Amounts payable to NV Energy are included on the Balance Sheets and consist of the following (in millions): As of June 30, December 31, 2020 2019 Qualified Pension Plan: Other long-term liabilities $ 3 $ 4 Non-Qualified Pension Plans: Other current liabilities 1 1 Other long-term liabilities 7 8 Other Postretirement Plans: Other long-term liabilities 7 7

Risk Management and Hedging Act

Risk Management and Hedging Activities	6 Months Ended
	Jun. 30, 2020
PacifiCorp [Member]
Derivative [Line Items]
Risk Management and Hedging Activities	Risk Management and Hedging Activities PacifiCorp is exposed to the impact of market fluctuations in commodity prices and interest rates. PacifiCorp is principally exposed to electricity, natural gas, coal and fuel oil commodity price risk as it has an obligation to serve retail customer load in its regulated service territories. PacifiCorp's load and generating facilities represent substantial underlying commodity positions. Exposures to commodity prices consist mainly of variations in the price of fuel required to generate electricity and wholesale electricity that is purchased and sold. Commodity prices are subject to wide price swings as supply and demand are impacted by, among many other unpredictable items, weather, market liquidity, geopolitical factors, generating facility availability, customer usage, storage, and transmission and transportation constraints. Interest rate risk exists on variable-rate debt and future debt issuances. PacifiCorp does not engage in a material amount of proprietary trading activities. PacifiCorp has established a risk management process that is designed to identify, manage and report each of the various types of risk involved in its business. To mitigate a portion of its commodity price risk, PacifiCorp uses commodity derivative contracts, which may include forwards, options, swaps and other agreements, to effectively secure future supply or sell future production generally at fixed prices. PacifiCorp manages its interest rate risk by limiting its exposure to variable interest rates primarily through the issuance of fixed-rate long-term debt and by monitoring market changes in interest rates. Additionally, PacifiCorp may from time to time enter into interest rate derivative contracts, such as interest rate swaps or locks, to mitigate PacifiCorp's exposure to interest rate risk. No interest rate derivatives were in place during the periods presented. PacifiCorp does not hedge all of its commodity price and interest rate risks, thereby exposing the unhedged portion to changes in market prices. There have been no significant changes in PacifiCorp's accounting policies related to derivatives. Refer to Note 8 for additional information on derivative contracts. The following table, which reflects master netting arrangements and excludes contracts that have been designated as normal under the normal purchases or normal sales exception afforded by GAAP, summarizes the fair value of PacifiCorp's derivative contracts, on a gross basis, and reconciles those amounts to the amounts presented on a net basis on the Consolidated Balance Sheets (in millions): Other Other Other Current Other Current Long-term Assets Assets Liabilities Liabilities Total As of June 30, 2020 Not designated as hedging contracts (1) : Commodity assets $ 9 $ 7 $ 6 $ — $ 22 Commodity liabilities (4 ) — (44 ) (42 ) (90 ) Total 5 7 (38 ) (42 ) (68 ) Total derivatives 5 7 (38 ) (42 ) (68 ) Cash collateral receivable — — 19 21 40 Total derivatives - net basis $ 5 $ 7 $ (19 ) $ (21 ) $ (28 ) As of December 31, 2019 Not designated as hedging contracts (1) : Commodity assets $ 15 $ 2 $ 4 $ — $ 21 Commodity liabilities (3 ) — (31 ) (50 ) (84 ) Total 12 2 (27 ) (50 ) (63 ) Total derivatives 12 2 (27 ) (50 ) (63 ) Cash collateral receivable — — 20 27 47 Total derivatives - net basis $ 12 $ 2 $ (7 ) $ (23 ) $ (16 ) (1) PacifiCorp's commodity derivatives are generally included in rates and as of June 30, 2020 and December 31, 2019 , a regulatory asset of $68 million and $62 million , respectively, was recorded related to the net derivative liability of $68 million and $63 million , respectively. The following table reconciles the beginning and ending balances of PacifiCorp's net regulatory assets and summarizes the pre-tax gains and losses on commodity derivative contracts recognized in net regulatory assets, as well as amounts reclassified to earnings (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Beginning balance $ 84 $ 78 $ 62 $ 96 Changes in fair value (6 ) 26 28 (28 ) Net gains (losses) reclassified to operating revenue 5 6 13 (16 ) Net (losses) gains reclassified to cost of fuel and energy (15 ) (9 ) (35 ) 49 Ending balance $ 68 $ 101 $ 68 $ 101 Derivative Contract Volumes The following table summarizes the net notional amounts of outstanding commodity derivative contracts with fixed price terms that comprise the mark-to-market values as of (in millions): Unit of June 30, December 31, Measure 2020 2019 Electricity sales, net Megawatt hours (1 ) (2 ) Natural gas purchases Decatherms 116 129 Credit Risk PacifiCorp is exposed to counterparty credit risk associated with wholesale energy supply and marketing activities with other utilities, energy marketing companies, financial institutions and other market participants. Credit risk may be concentrated to the extent PacifiCorp's counterparties have similar economic, industry or other characteristics and due to direct or indirect relationships among the counterparties. Before entering into a transaction, PacifiCorp analyzes the financial condition of each significant wholesale counterparty, establishes limits on the amount of unsecured credit to be extended to each counterparty and evaluates the appropriateness of unsecured credit limits on an ongoing basis. To further mitigate wholesale counterparty credit risk, PacifiCorp enters into netting and collateral arrangements that may include margining and cross-product netting agreements and obtains third-party guarantees, letters of credit and cash deposits. If required, PacifiCorp exercises rights under these arrangements, including calling on the counterparty's credit support arrangement. Collateral and Contingent Features In accordance with industry practice, certain wholesale agreements, including derivative contracts, contain credit support provisions that in part base certain collateral requirements on credit ratings for senior unsecured debt as reported by one or more of the three recognized credit rating agencies. These derivative contracts may either specifically provide bilateral rights to demand cash or other security if credit exposures on a net basis exceed specified rating-dependent threshold levels ("credit-risk-related contingent features") or provide the right for counterparties to demand "adequate assurance," or in some cases terminate the contract, in the event of a material adverse change in PacifiCorp's creditworthiness. These rights can vary by contract and by counterparty. As of June 30, 2020 , PacifiCorp's credit ratings for its senior secured debt and its issuer credit ratings for senior unsecured debt by Moody's Investor Service and Standard & Poor's Rating Services were investment grade. The aggregate fair value of PacifiCorp's derivative contracts in liability positions with specific credit-risk-related contingent features totaled $84 million and $80 million as of June 30, 2020 and December 31, 2019 , respectively, for which PacifiCorp had posted collateral of $40 million and $47 million , respectively, in the form of cash deposits. If all credit-risk-related contingent features for derivative contracts in liability positions had been triggered as of June 30, 2020 and December 31, 2019 , PacifiCorp would have been required to post $33 million and $27 million , respectively, of additional collateral. PacifiCorp's collateral requirements could fluctuate considerably due to market price volatility, changes in credit ratings, changes in legislation or regulation, or other factors.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements	Fair Value Measurements The carrying value of the Company's cash, certain cash equivalents, receivables, payables, accrued liabilities and short-term borrowings approximates fair value because of the short-term maturity of these instruments. The Company has various financial assets and liabilities that are measured at fair value on the Consolidated Financial Statements using inputs from the three levels of the fair value hierarchy. A financial asset or liability classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The three levels are as follows: • Level 1 — Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date. • Level 2 — Inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs). • Level 3 — Unobservable inputs reflect the Company's judgments about the assumptions market participants would use in pricing the asset or liability since limited market data exists. The Company develops these inputs based on the best information available, including its own data. The following table presents the Company's financial assets and liabilities recognized on the Consolidated Balance Sheets and measured at fair value on a recurring basis (in millions): Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Other (1) Total As of June 30, 2020 Assets: Commodity derivatives $ 1 $ 54 $ 106 $ (27 ) $ 134 Interest rate derivatives — 1 78 — 79 Mortgage loans held for sale — 1,617 — — 1,617 Money market mutual funds (2) 1,357 — — — 1,357 Debt securities: United States government obligations 176 — — — 176 International government obligations — 4 — — 4 Corporate obligations — 73 — — 73 Municipal obligations — 3 — — 3 Agency, asset and mortgage-backed obligations — 5 — — 5 Equity securities: United States companies 336 — — — 336 International companies 1,745 — — — 1,745 Investment funds 194 — — — 194 $ 3,809 $ 1,757 $ 184 $ (27 ) $ 5,723 Liabilities: Commodity derivatives $ (2 ) $ (136 ) $ (62 ) $ 94 $ (106 ) Interest rate derivatives (5 ) (60 ) — — (65 ) $ (7 ) $ (196 ) $ (62 ) $ 94 $ (171 ) Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Other (1) Total As of December 31, 2019 Assets: Commodity derivatives $ — $ 45 $ 108 $ (24 ) $ 129 Interest rate derivatives — 2 14 — 16 Mortgage loans held for sale — 1,039 — — 1,039 Money market mutual funds (2) 824 — — — 824 Debt securities: United States government obligations 189 — — — 189 International government obligations — 4 — — 4 Corporate obligations — 58 — — 58 Municipal obligations — 1 — — 1 Agency, asset and mortgage-backed obligations — 1 — — 1 Equity securities: United States companies 336 — — — 336 International companies 1,131 — — — 1,131 Investment funds 169 — — — 169 $ 2,649 $ 1,150 $ 122 $ (24 ) $ 3,897 Liabilities: Commodity derivatives $ (4 ) $ (143 ) $ (11 ) $ 103 $ (55 ) Interest rate derivatives (2 ) (19 ) — — (21 ) $ (6 ) $ (162 ) $ (11 ) $ 103 $ (76 ) (1) Represents netting under master netting arrangements and a net cash collateral receivable of $67 million and $79 million as of June 30, 2020 and December 31, 2019 , respectively. (2) Amounts are included in cash and cash equivalents; other current assets; and noncurrent investments and restricted cash and investments on the Consolidated Balance Sheets. The fair value of these money market mutual funds approximates cost. Derivative contracts are recorded on the Consolidated Balance Sheets as either assets or liabilities and are stated at estimated fair value unless they are designated as normal purchases or normal sales and qualify for the exception afforded by GAAP. When available, the fair value of derivative contracts is estimated using unadjusted quoted prices for identical contracts in the market in which the Company transacts. When quoted prices for identical contracts are not available, the Company uses forward price curves. Forward price curves represent the Company's estimates of the prices at which a buyer or seller could contract today for delivery or settlement at future dates. The Company bases its forward price curves upon market price quotations, when available, or internally developed and commercial models, with internal and external fundamental data inputs. Market price quotations are obtained from independent brokers, exchanges, direct communication with market participants and actual transactions executed by the Company. Market price quotations are generally readily obtainable for the applicable term of the Company's outstanding derivative contracts; therefore, the Company's forward price curves reflect observable market quotes. Market price quotations for certain electricity and natural gas trading hubs are not as readily obtainable due to the length of the contract. Given that limited market data exists for these contracts, as well as for those contracts that are not actively traded, the Company uses forward price curves derived from internal models based on perceived pricing relationships to major trading hubs that are based on unobservable inputs. The estimated fair value of these derivative contracts is a function of underlying forward commodity prices, interest rates, currency rates, related volatility, counterparty creditworthiness and duration of contracts. The Company's mortgage loans held for sale are valued based on independent quoted market prices, where available, or the prices of other mortgage whole loans with similar characteristics. As necessary, these prices are adjusted for typical securitization activities, including servicing value, portfolio composition, market conditions and liquidity. The Company's investments in money market mutual funds and debt and equity securities are stated at fair value. When available, a readily observable quoted market price or net asset value of an identical security in an active market is used to record the fair value. In the absence of a quoted market price or net asset value of an identical security, the fair value is determined using pricing models or net asset values based on observable market inputs and quoted market prices of securities with similar characteristics. The following table reconciles the beginning and ending balances of the Company's assets and liabilities measured at fair value on a recurring basis using significant Level 3 inputs (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, Interest Interest Commodity Rate Commodity Rate Derivatives Derivatives Derivatives Derivatives 2020: Beginning balance $ 52 $ 45 $ 97 $ 14 Changes included in earnings (1 ) 264 (4 ) 336 Changes in fair value recognized in net regulatory assets (16 ) — (56 ) — Purchases 1 — 3 — Settlements 8 (231 ) 4 (272 ) Ending balance $ 44 $ 78 $ 44 $ 78 2019: Beginning balance $ 86 $ 18 $ 99 $ 10 Changes included in earnings 8 94 5 147 Changes in fair value recognized in OCI (1 ) — (1 ) — Changes in fair value recognized in net regulatory assets (12 ) — (23 ) — Purchases 3 — 4 — Settlements 2 (89 ) 2 (134 ) Ending balance $ 86 $ 23 $ 86 $ 23 The Company's long-term debt is carried at cost, including fair value adjustments and unamortized premiums, discounts and debt issuance costs as applicable, on the Consolidated Balance Sheets. The fair value of the Company's long-term debt is a Level 2 fair value measurement and has been estimated based upon quoted market prices, where available, or at the present value of future cash flows discounted at rates consistent with comparable maturities with similar credit risks. The carrying value of the Company's variable-rate long-term debt approximates fair value because of the frequent repricing of these instruments at market rates. The following table presents the carrying value and estimated fair value of the Company's long-term debt (in millions): As of June 30, 2020 As of December 31, 2019 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 42,905 $ 52,847 $ 39,353 $ 46,004
PacifiCorp [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements	Fair Value Measurements The carrying value of PacifiCorp's cash, certain cash equivalents, receivables, payables, accrued liabilities and short-term borrowings approximates fair value because of the short-term maturity of these instruments. PacifiCorp has various financial assets and liabilities that are measured at fair value on the Consolidated Financial Statements using inputs from the three levels of the fair value hierarchy. A financial asset or liability classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The three levels are as follows: • Level 1 — Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that PacifiCorp has the ability to access at the measurement date. • Level 2 — Inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs). • Level 3 — Unobservable inputs reflect PacifiCorp's judgments about the assumptions market participants would use in pricing the asset or liability since limited market data exists. PacifiCorp develops these inputs based on the best information available, including its own data. The following table presents PacifiCorp's financial assets and liabilities recognized on the Consolidated Balance Sheets and measured at fair value on a recurring basis (in millions): Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Other (1) Total As of June 30, 2020 Assets: Commodity derivatives $ — $ 22 $ — $ (10 ) $ 12 Money market mutual funds (2) 450 — — — 450 Investment funds 26 — — — 26 $ 476 $ 22 $ — $ (10 ) $ 488 Liabilities - Commodity derivatives $ — $ (90 ) $ — $ 50 $ (40 ) As of December 31, 2019 Assets: Commodity derivatives $ — $ 21 $ — $ (7 ) $ 14 Money market mutual funds (2) 23 — — — 23 Investment funds 25 — — — 25 $ 48 $ 21 $ — $ (7 ) $ 62 Liabilities - Commodity derivatives $ — $ (84 ) $ — $ 54 $ (30 ) (1) Represents netting under master netting arrangements and a net cash collateral receivable of $40 million and $47 million as of June 30, 2020 and December 31, 2019 , respectively. (2) Amounts are included in cash and cash equivalents, other current assets and other assets on the Consolidated Balance Sheets. The fair value of these money market mutual funds approximates cost. Derivative contracts are recorded on the Consolidated Balance Sheets as either assets or liabilities and are stated at estimated fair value unless they are designated as normal purchases or normal sales and qualify for the exception afforded by GAAP. When available, the fair value of derivative contracts is estimated using unadjusted quoted prices for identical contracts in the market in which PacifiCorp transacts. When quoted prices for identical contracts are not available, PacifiCorp uses forward price curves. Forward price curves represent PacifiCorp's estimates of the prices at which a buyer or seller could contract today for delivery or settlement at future dates. PacifiCorp bases its forward price curves upon market price quotations, when available, or internally developed and commercial models, with internal and external fundamental data inputs. Market price quotations are obtained from independent energy brokers, exchanges, direct communication with market participants and actual transactions executed by PacifiCorp. Market price quotations for certain major electricity and natural gas trading hubs are generally readily obtainable for the first three years; therefore, PacifiCorp's forward price curves for those locations and periods reflect observable market quotes. Market price quotations for other electricity and natural gas trading hubs are not as readily obtainable for the first three years. Given that limited market data exists for these contracts, as well as for those contracts that are not actively traded, PacifiCorp uses forward price curves derived from internal models based on perceived pricing relationships to major trading hubs that are based on unobservable inputs. The estimated fair value of these derivative contracts is a function of underlying forward commodity prices, interest rates, currency rates, related volatility, counterparty creditworthiness and duration of contracts. Refer to Note 7 for further discussion regarding PacifiCorp's risk management and hedging activities. PacifiCorp's investments in money market mutual funds and investment funds are stated at fair value. When available, PacifiCorp uses a readily observable quoted market price or net asset value of an identical security in an active market to record the fair value. In the absence of a quoted market price or net asset value of an identical security, the fair value is determined using pricing models or net asset values based on observable market inputs and quoted market prices of securities with similar characteristics. PacifiCorp's long-term debt is carried at cost on the Consolidated Balance Sheets. The fair value of PacifiCorp's long-term debt is a Level 2 fair value measurement and has been estimated based upon quoted market prices, where available, or at the present value of future cash flows discounted at rates consistent with comparable maturities with similar credit risks. The carrying value of PacifiCorp's variable-rate long-term debt approximates fair value because of the frequent repricing of these instruments at market rates. The following table presents the carrying value and estimated fair value of PacifiCorp's long-term debt (in millions): As of June 30, 2020 As of December 31, 2019 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 8,648 $ 10,870 $ 7,658 $ 9,280
MidAmerican Energy Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements	Fair Value Measurements The carrying value of MidAmerican Energy's cash, certain cash equivalents, receivables, payables, accrued liabilities and short-term borrowings approximates fair value because of the short-term maturity of these instruments. MidAmerican Energy has various financial assets and liabilities that are measured at fair value on the Financial Statements using inputs from the three levels of the fair value hierarchy. A financial asset or liability classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The three levels are as follows: • Level 1 — Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that MidAmerican Energy has the ability to access at the measurement date. • Level 2 — Inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs). • Level 3 — Unobservable inputs reflect MidAmerican Energy's judgments about the assumptions market participants would use in pricing the asset or liability since limited market data exists. MidAmerican Energy develops these inputs based on the best information available, including its own data. The following table presents MidAmerican Energy's financial assets and liabilities recognized on the Balance Sheets and measured at fair value on a recurring basis (in millions): Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Other (1) Total As of June 30, 2020: Assets: Commodity derivatives $ 1 $ 3 $ 4 $ (3 ) $ 5 Money market mutual funds (2) 12 — — — 12 Debt securities: United States government obligations 176 — — — 176 International government obligations — 4 — — 4 Corporate obligations — 73 — — 73 Municipal obligations — 3 — — 3 Agency, asset and mortgage-backed obligations — 5 — — 5 Equity securities: United States companies 336 — — — 336 International companies 8 — — — 8 Investment funds 20 — — — 20 $ 553 $ 88 $ 4 $ (3 ) $ 642 Liabilities - commodity derivatives $ — $ (6 ) $ (2 ) $ 3 $ (5 ) Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Other (1) Total As of December 31, 2019: Assets: Commodity derivatives $ — $ 2 $ 1 $ (1 ) $ 2 Money market mutual funds (2) 274 — — — 274 Debt securities: United States government obligations 189 — — — 189 International government obligations — 4 — — 4 Corporate obligations — 58 — — 58 Municipal obligations — 1 — — 1 Agency, asset and mortgage-backed obligations — 1 — — 1 Equity securities: United States companies 336 — — — 336 International companies 9 — — — 9 Investment funds 15 — — — 15 $ 823 $ 66 $ 1 $ (1 ) $ 889 Liabilities - commodity derivatives $ — $ (9 ) $ — $ 2 $ (7 ) (1) Represents netting under master netting arrangements and a net cash collateral receivable of $- million and $1 million as of June 30, 2020 and December 31, 2019 , respectively. (2) Amounts are included in cash and cash equivalents and investments and restricted investments on the Balance Sheets. The fair value of these money market mutual funds approximates cost. MidAmerican Energy's investments in money market mutual funds and debt and equity securities are stated at fair value, with debt securities accounted for as available-for-sale securities. When available, a readily observable quoted market price or net asset value of an identical security in an active market is used to record the fair value. In the absence of a quoted market price or net asset value of an identical security, the fair value is determined using pricing models or net asset values based on observable market inputs and quoted market prices of securities with similar characteristics. MidAmerican Energy's long-term debt is carried at cost on the Balance Sheets. The fair value of MidAmerican Energy's long-term debt is a Level 2 fair value measurement and has been estimated based upon quoted market prices, where available, or at the present value of future cash flows discounted at rates consistent with comparable maturities with similar credit risks. The carrying value of MidAmerican Energy's variable-rate long-term debt approximates fair value because of the frequent repricing of these instruments at market rates. The following table presents the carrying value and estimated fair value of MidAmerican Energy's long-term debt (in millions): As of June 30, 2020 As of December 31, 2019 Carrying Value Fair Value Carrying Value Fair Value Long-term debt $ 7,209 $ 9,019 $ 7,208 $ 8,283
MidAmerican Funding, LLC and Subsidiaries [Domain]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements	Fair Value Measurements Refer to Note 7 of MidAmerican Energy's Notes to Financial Statements. MidAmerican Funding 's long-term debt is carried at cost on the Consolidated Financial Statements. The fair value of MidAmerican Funding 's long-term debt is a Level 2 fair value measurement and has been estimated based upon quoted market prices, where available, or at the present value of future cash flows discounted at rates consistent with comparable maturities with similar credit risks. The carrying value of MidAmerican Funding 's variable-rate long-term debt approximates fair value because of the frequent repricing of these instruments at market rates. The following table presents the carrying value and estimated fair value of MidAmerican Funding 's long-term debt (in millions): As of June 30, 2020 As of December 31, 2019 Carrying Value Fair Value Carrying Value Fair Value Long-term debt $ 7,449 $ 9,357 $ 7,448 $ 8,599
Nevada Power Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements	Fair Value Measurements The carrying value of Nevada Power's cash, certain cash equivalents, receivables, payables, accrued liabilities and short-term borrowings approximates fair value because of the short-term maturity of these instruments. Nevada Power has various financial assets and liabilities that are measured at fair value on the Consolidated Balance Sheets using inputs from the three levels of the fair value hierarchy. A financial asset or liability classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The three levels are as follows: • Level 1 — Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that Nevada Power has the ability to access at the measurement date. • Level 2 — Inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs). • Level 3 — Unobservable inputs reflect Nevada Power's judgments about the assumptions market participants would use in pricing the asset or liability since limited market data exists. Nevada Power develops these inputs based on the best information available, including its own data. The following table presents Nevada Power's assets and liabilities recognized on the Consolidated Balance Sheets and measured at fair value on a recurring basis (in millions): Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Total As of June 30, 2020 Assets: Money market mutual funds (1) $ 8 $ — $ — $ 8 Investment funds 2 — — 2 $ 10 $ — $ — $ 10 Liabilities - commodity derivatives $ — $ — $ (44 ) $ (44 ) As of December 31, 2019 Assets: Money market mutual funds (1) $ 10 $ — $ — $ 10 Investment funds 2 — — 2 $ 12 $ — $ — $ 12 Liabilities - commodity derivatives $ — $ — $ (8 ) $ (8 ) (1) Amounts are included in cash and cash equivalents on the Consolidated Balance Sheets. The fair value of these money market mutual funds approximates cost. Derivative contracts are recorded on the Consolidated Balance Sheets as either assets or liabilities and are stated at estimated fair value unless they are designated as normal purchases or normal sales and qualify for the exception afforded by GAAP. When available, the fair value of derivative contracts is estimated using unadjusted quoted prices for identical contracts in the market in which Nevada Power transacts. When quoted prices for identical contracts are not available, Nevada Power uses forward price curves. Forward price curves represent Nevada Power's estimates of the prices at which a buyer or seller could contract today for delivery or settlement at future dates. Nevada Power bases its forward price curves upon internally developed models, with internal and external fundamental data inputs. Market price quotations for certain electricity and natural gas trading hubs are not as readily obtainable due to markets that are not active. Given that limited market data exists for these contracts, Nevada Power uses forward price curves derived from internal models based on perceived pricing relationships to major trading hubs that are based on unobservable inputs. The model incorporates a mid-market pricing convention (the mid‑point price between bid and ask prices) as a practical expedient for valuing its assets and liabilities measured and reported at fair value. The determination of the fair value for derivative contracts not only includes counterparty risk, but also the impact of Nevada Power's nonperformance risk on its liabilities, which as of June 30, 2020 and December 31, 2019 , had an immaterial impact to the fair value of its derivative contracts. As such, Nevada Power considers its derivative contracts to be valued using Level 3 inputs. Nevada Power's investments in money market mutual funds and equity securities are stated at fair value. When available, a readily observable quoted market price or net asset value of an identical security in an active market is used to record the fair value. The following table reconciles the beginning and ending balances of Nevada Power's commodity derivative assets and liabilities measured at fair value on a recurring basis using significant Level 3 inputs (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Beginning balance $ (38 ) (5 ) $ (8 ) $ 3 Changes in fair value recognized in regulatory assets (13 ) (8 ) (44 ) (17 ) Settlements 7 2 8 3 Ending balance $ (44 ) $ (11 ) $ (44 ) $ (11 ) Nevada Power's long-term debt is carried at cost on the Consolidated Balance Sheets. The fair value of Nevada Power's long‑term debt is a Level 2 fair value measurement and has been estimated based upon quoted market prices, where available, or at the present value of future cash flows discounted at rates consistent with comparable maturities with similar credit risks. The carrying value of Nevada Power's variable-rate long-term debt approximates fair value because of the frequent repricing of these instruments at market rates. The following table presents the carrying value and estimated fair value of Nevada Power's long‑term debt (in millions): As of June 30, 2020 As of December 31, 2019 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 2,495 $ 3,187 $ 2,351 $ 2,848
Sierra Pacific Power Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements	Fair Value Measurements The carrying value of Sierra Pacific's cash, certain cash equivalents, receivables, payables, accrued liabilities and short-term borrowings approximates fair value because of the short-term maturity of these instruments. Sierra Pacific has various financial assets and liabilities that are measured at fair value on the Balance Sheets using inputs from the three levels of the fair value hierarchy. A financial asset or liability classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The three levels are as follows: • Level 1 — Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that Sierra Pacific has the ability to access at the measurement date. • Level 2 — Inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs). • Level 3 — Unobservable inputs reflect Sierra Pacific's judgments about the assumptions market participants would use in pricing the asset or liability since limited market data exists. Sierra Pacific develops these inputs based on the best information available, including its own data. The following table presents Sierra Pacific's assets and liabilities recognized on the Balance Sheets and measured at fair value on a recurring basis (in millions): Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Total As of June 30, 2020 Assets: Money market mutual funds (1) $ 9 $ — $ — $ 9 Investment funds 1 — — 1 $ 10 $ — $ — $ 10 Liabilities - commodity derivatives $ — $ — $ (12 ) $ (12 ) As of December 31, 2019 Assets - money market mutual funds (1) $ 25 $ — $ — $ 25 Liabilities - commodity derivatives $ — $ — $ (1 ) $ (1 ) (1) Amounts are included in cash and cash equivalents on the Balance Sheets. The fair value of these money market mutual funds approximates cost. Sierra Pacific's investments in money market mutual funds and equity securities are stated at fair value. When available, a readily observable quoted market price or net asset value of an identical security in an active market is used to record the fair value. Sierra Pacific's long-term debt is carried at cost on the Balance Sheets. The fair value of Sierra Pacific's long-term debt is a Level 2 fair value measurement and has been estimated based upon quoted market prices, where available, or at the present value of future cash flows discounted at rates consistent with comparable maturities with similar credit risks. The carrying value of Sierra Pacific's variable-rate long-term debt approximates fair value because of the frequent repricing of these instruments at market rates. The following table presents the carrying value and estimated fair value of Sierra Pacific's long-term debt (in millions): As of June 30, 2020 As of December 31, 2019 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 1,135 $ 1,324 $ 1,135 $ 1,258

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2020
Loss Contingencies [Line Items]
Commitments and Contingencies	Commitments and Contingencies Construction Commitments During the six-month period ended June 30, 2020 , MidAmerican Energy entered into firm construction commitments totaling $269 million for the remainder of 2020 through 2021 related to the construction of wind-powered generating facilities in Iowa. Easements During the six-month period ended June 30, 2020 , MidAmerican Energy entered into non-cancelable easements with minimum payment commitments totaling $98 million through 2060 for land in Iowa on which some of its wind-powered generating facilities will be located. Maintenance and Service Contracts During the six-month period ended June 30, 2020 , MidAmerican Energy entered into non-cancelable maintenance and service contracts related to wind-powered generating facilities with minimum payment commitments totaling $72 million through 2031 . BHE Renewables' Counterparty Risk On January 29, 2019, PG&E Corporation and Pacific Gas and Electric Company (the "PG&E Utility") (together "PG&E") filed voluntary petitions for relief under chapter 11 of the United States Bankruptcy Code in the United States Bankruptcy Court for the Northern District of California ("PG&E Bankruptcy Filing"). The Company owns 100% of Topaz Solar Farm LLC ("Topaz") and owns a 49% interest in Agua Caliente Solar, LLC ("Agua Caliente"). Topaz is a 550 -MW solar photovoltaic electric power generating facility located in California. Topaz sells 100% of its energy, capacity and renewable energy credits ("RECs") generated from the facility to PG&E Utility under a 25-year wholesale power purchase agreement ("PPA") that is in effect until October 2039. Agua Caliente is a 290 -MW solar photovoltaic electric power generating facility located in Arizona. Agua Caliente sells 100% of its energy, capacity and RECs generated from the facility to PG&E Utility under a 25-year wholesale PPA that is in effect until June 2039. PG&E paid in full all amounts invoiced to date for post-petition energy deliveries for both Topaz and Agua Caliente as well as for the power delivered from January 1 through January 28, 2019. The PG&E Bankruptcy Filing was an event of default under the Topaz PPA ("PPA Default"); however, the Company maintained that, in light of the current facts and circumstances, the PPA Default could not reasonably be expected to result in a material adverse effect under the Topaz indenture and, therefore, no default had occurred under the Topaz indenture. On July 1, 2020, PG&E announced it had emerged from bankruptcy, successfully completing its restructuring process and implementing PG&E's Plan of Reorganization (the "Plan") that was confirmed by the United States Bankruptcy Court on June 20, 2020. The Company believes that no impairment exists and that current debt obligations will be met, as PG&E's emergence from bankruptcy has cured the PPA Default and PG&E's Plan includes the assumption of both the Topaz and Agua Caliente PPAs. The Company also expects to begin receiving distributions from Topaz and Agua Caliente in the second half of 2020 in accordance with the provisions of each respective debt agreement. Legal Matters The Company is party to a variety of legal actions arising out of the normal course of business. Plaintiffs occasionally seek punitive or exemplary damages. The Company does not believe that such normal and routine litigation will have a material impact on its consolidated financial results. The Company is also involved in other kinds of legal actions, some of which assert or may assert claims or seek to impose fines, penalties and other costs in substantial amounts and are described below. Environmental Laws and Regulations The Company is subject to federal, state, local and foreign laws and regulations regarding climate change, renewable portfolio standards, air and water quality, emissions performance standards, coal combustion byproduct disposal, hazardous and solid waste disposal, protected species and other environmental matters that have the potential to impact the Company's current and future operations. The Company believes it is in material compliance with all applicable laws and regulations. Hydroelectric Relicensing PacifiCorp is a party to the 2016 amended Klamath Hydroelectric Settlement Agreement ("KHSA"), which is intended to resolve disputes surrounding PacifiCorp's efforts to relicense the Klamath Hydroelectric Project. The KHSA does not guarantee dam removal. Instead, it establishes a process for PacifiCorp, the states of Oregon and California ("States") and other stakeholders to assess whether dam removal can occur consistent with the settlement's terms. For PacifiCorp, the key elements of the settlement include: (1) a contribution from PacifiCorp's Oregon and California customers capped at $200 million plus $250 million in California bond funds; (2) complete indemnification from harms associated with dam removal; (3) transfer of the Federal Energy Regulatory Commission ("FERC") license to a third-party dam removal entity, the Klamath River Renewal Corporation ("KRRC"), who would conduct dam removal; and (4) ability for PacifiCorp to operate the facilities for the benefit of customers until dam removal commences. In September 2016, the KRRC and PacifiCorp filed a joint application with the FERC to transfer the license for the four main-stem Klamath dams from PacifiCorp to the KRRC. The FERC approved partial transfer of the Klamath license in July 2020, subject to the condition that PacifiCorp remains co-licensee. Under the amended KHSA, PacifiCorp did not agree to remain co-licensee during the surrender and removal process given concerns about liability protections for PacifiCorp and its customers. The order does not immediately take effect, and PacifiCorp is evaluating the order in coordination with its settlement partners, including continued implementation of the agreement. Requests for rehearing are due on August 17, 2020 . The United States Court of Appeals for the District of Columbia Circuit issued a decision in the Hoopa Valley Tribe v. FERC litigation, in January 2019, finding that the states of California and Oregon have waived their Clean Water Act, Section 401, water quality certification authority over the Klamath hydroelectric project relicensing. This decision has the potential to limit the ability of the States to impose water quality conditions on new and relicensed projects. Environmental interests, supported by California, Oregon and other states, asked the court to rehear the case, which was denied. Subsequently, environmental groups, supported by numerous states, filed a petition for certiorari before the United States Supreme Court, which was denied on December 9, 2019, thereby allowing the circuit court opinion to stand as a final and unappealable decision. Guarantees The Company has entered into guarantees as part of the normal course of business and the sale of certain assets. These guarantees are not expected to have a material impact on the Company's consolidated financial results.
PacifiCorp [Member]
Loss Contingencies [Line Items]
Commitments and Contingencies	Commitments and Contingencies Legal Matters PacifiCorp is party to a variety of legal actions arising out of the normal course of business. Plaintiffs occasionally seek punitive or exemplary damages. PacifiCorp does not believe that such normal and routine litigation will have a material impact on its consolidated financial results. Environmental Laws and Regulations PacifiCorp is subject to federal, state and local laws and regulations regarding climate change, renewable portfolio standards, air and water quality, emissions performance standards, coal combustion byproduct disposal, hazardous and solid waste disposal, protected species and other environmental matters that have the potential to impact PacifiCorp's current and future operations. PacifiCorp believes it is in material compliance with all applicable laws and regulations. Hydroelectric Relicensing PacifiCorp is a party to the 2016 amended Klamath Hydroelectric Settlement Agreement ("KHSA"), which is intended to resolve disputes surrounding PacifiCorp's efforts to relicense the Klamath Hydroelectric Project. The KHSA does not guarantee dam removal. Instead, it establishes a process for PacifiCorp, the states of Oregon and California ("States") and other stakeholders to assess whether dam removal can occur consistent with the settlement's terms. For PacifiCorp, the key elements of the settlement include: (1) a contribution from PacifiCorp's Oregon and California customers capped at $200 million plus $250 million in California bond funds; (2) complete indemnification from harms associated with dam removal; (3) transfer of the Federal Energy Regulatory Commission ("FERC") license to a third-party dam removal entity, the Klamath River Renewal Corporation ("KRRC"), who would conduct dam removal; and (4) ability for PacifiCorp to operate the facilities for the benefit of customers until dam removal commences. In September 2016, the KRRC and PacifiCorp filed a joint application with the FERC to transfer the license for the four main-stem Klamath dams from PacifiCorp to the KRRC. The FERC approved partial transfer of the Klamath license in July 2020, subject to the condition that PacifiCorp remains co-licensee. Under the amended KHSA, PacifiCorp did not agree to remain co-licensee during the surrender and removal process given concerns about liability protections for PacifiCorp and its customers. The order does not immediately take effect, and PacifiCorp is evaluating the order in coordination with its settlement partners, including continued implementation of the agreement. Requests for rehearing are due on August 17, 2020 . The United States Court of Appeals for the District of Columbia Circuit issued a decision in the Hoopa Valley Tribe v. FERC litigation, in January 2019, finding that the states of California and Oregon have waived their Clean Water Act, Section 401, water quality certification authority over the Klamath hydroelectric project relicensing. This decision has the potential to limit the ability of the States to impose water quality conditions on new and relicensed projects. Environmental interests, supported by California, Oregon and other states, asked the court to rehear the case, which was denied. Subsequently, environmental groups, supported by numerous states, filed a petition for certiorari before the United States Supreme Court, which was denied on December 9, 2019, thereby allowing the circuit court opinion to stand as a final and unappealable decision. Guarantees PacifiCorp has entered into guarantees as part of the normal course of business and the sale of certain assets. These guarantees are not expected to have a material impact on PacifiCorp's consolidated financial results.
MidAmerican Energy Company [Member]
Loss Contingencies [Line Items]
Commitments and Contingencies	Commitments and Contingencies Construction Commitments During the six-month period ended June 30, 2020 , MidAmerican Energy entered into firm construction commitments totaling $269 million for the remainder of 2020 through 2021 related to the construction of wind-powered generating facilities in Iowa. Easements During the six-month period ended June 30, 2020 , MidAmerican Energy entered into non-cancelable easements with minimum payment commitments totaling $98 million through 2060 for land in Iowa on which some of its wind-powered generating facilities will be located. Maintenance and Service Contracts During the six-month period ended June 30, 2020 , MidAmerican Energy entered into non-cancelable maintenance and service contracts related to wind-powered generating facilities with minimum payment commitments totaling $72 million through 2031 . Legal Matters MidAmerican Energy is party to a variety of legal actions arising out of the normal course of business. Plaintiffs occasionally seek punitive or exemplary damages. MidAmerican Energy does not believe that such normal and routine litigation will have a material impact on its financial results. Environmental Laws and Regulations MidAmerican Energy is subject to federal, state and local laws and regulations regarding climate change, renewable portfolio standards ("RPS"), air and water quality, emissions performance standards, coal combustion byproduct disposal, hazardous and solid waste disposal, protected species and other environmental matters that have the potential to impact its current and future operations. MidAmerican Energy believes it is in material compliance with all applicable laws and regulations. Transmission Rates MidAmerican Energy's wholesale transmission rates are set annually using FERC-approved formula rates subject to true-up for actual cost of service. MidAmerican Energy is authorized by the FERC to include a 0.50% adder beyond the approved base return on equity ("ROE") effective January 2015. Prior to September 2016, the rates in effect were based on a 12.38% ROE. In November 2013 and February 2015, a coalition of intervenors filed successive complaints with the FERC requesting that the 12.38% ROE no longer be found just and reasonable and sought to reduce the base ROE to 9.15% and 8.67% , respectively. In September 2016, the FERC issued an order for the first complaint, which reduces the base ROE to 10.32% and required refunds, plus interest, for the period from November 2013 through February 2015. Customer refunds relative to the first complaint occurred in February 2017. In November 2019, the FERC issued an order addressing the second complaint and issues on appeal in the first complaint. The order established a ROE of 9.88% ( 10.38% including the 0.50% adder) for the 15-month refund period of the first complaint and prospectively from September 2016 forward. In May 2020, the FERC issued an order on rehearing of the November 2019 order. The May 2020 order affirmed the FERC's prior decision to dismiss the second complaint and established an ROE of 10.02% ( 10.52% including the 0.50% adder) for the 15-month refund period of the first complaint and prospectively from September 2016 to the date of the May 2020 order. These orders continue to be subject to judicial appeal. MidAmerican Energy cannot predict the ultimate outcome of these matters and, as of June 30, 2020 , has accrued a $12 million liability for refunds of amounts collected under the higher ROE during the periods covered by both complaints.
MidAmerican Funding, LLC and Subsidiaries [Domain]
Loss Contingencies [Line Items]
Commitments and Contingencies	Commitments and Contingencies MidAmerican Funding is party to a variety of legal actions arising out of the normal course of business. Plaintiffs occasionally seek punitive or exemplary damages. MidAmerican Funding does not believe that such normal and routine litigation will have a material impact on its consolidated financial results. Refer to Note 8 of MidAmerican Energy's Notes to Financial Statements.
Nevada Power Company [Member]
Loss Contingencies [Line Items]
Commitments and Contingencies	Commitments and Contingencies Legal Matters Nevada Power is party to a variety of legal actions arising out of the normal course of business. Plaintiffs occasionally seek punitive or exemplary damages. Nevada Power does not believe that such normal and routine litigation will have a material impact on its consolidated financial results. Nevada Power is also involved in other kinds of legal actions, some of which assert or may assert claims or seek to impose fines, penalties and other costs in substantial amounts. Environmental Laws and Regulations Nevada Power is subject to federal, state and local laws and regulations regarding climate change, renewable portfolio standards ("RPS"), air and water quality, emissions performance standards, coal combustion byproduct disposal, hazardous and solid waste disposal, protected species and other environmental matters that have the potential to impact Nevada Power's current and future operations. Nevada Power believes it is in material compliance with all applicable laws and regulations.
Sierra Pacific Power Company [Member]
Loss Contingencies [Line Items]
Commitments and Contingencies	Commitments and Contingencies Legal Matters Sierra Pacific is party to a variety of legal actions arising out of the normal course of business. Plaintiffs occasionally seek punitive or exemplary damages. Sierra Pacific does not believe that such normal and routine litigation will have a material impact on its financial results. Sierra Pacific is also involved in other kinds of legal actions, some of which assert or may assert claims or seek to impose fines, penalties and other costs in substantial amounts. Environmental Laws and Regulations Sierra Pacific is subject to federal, state and local laws and regulations regarding climate change, renewable portfolio standards ("RPS"), air and water quality, emissions performance standards, coal combustion byproduct disposal, hazardous and solid waste disposal, protected species and other environmental matters that have the potential to impact Sierra Pacific's current and future operations. Sierra Pacific believes it is in material compliance with all applicable laws and regulations.

Revenue from Contracts with Cus

Revenue from Contracts with Customers Revenue from Contracts with Customers (Notes)	6 Months Ended
	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer [Text Block]	Revenue from Contracts with Customers Energy Products and Services The following table summarizes the Company's energy products and services revenue from contracts with customers ("Customer Revenue") by regulated energy and nonregulated energy, with further disaggregation of regulated energy by line of business, including a reconciliation to the Company's reportable segment information included in Note 13 (in millions): For the Three-Month Period Ended June 30, 2020 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables BHE and Other (1) Total Customer Revenue: Regulated: Retail electric $ 1,066 $ 468 $ 638 $ — $ — $ — $ — $ — $ 2,172 Retail gas — 84 20 — — — — — 104 Wholesale 17 37 6 — — — — (1 ) 59 Transmission and distribution 24 18 22 191 — 164 — — 419 Interstate pipeline — — — — 221 — — (26 ) 195 Other 20 — — — — — — — 20 Total Regulated 1,127 607 686 191 221 164 — (27 ) 2,969 Nonregulated — 3 1 5 — 5 212 122 348 Total Customer Revenue 1,127 610 687 196 221 169 212 95 3,317 Other revenue 17 6 8 25 4 — 32 10 102 Total $ 1,144 $ 616 $ 695 $ 221 $ 225 $ 169 $ 244 $ 105 $ 3,419 For the Six-Month Period Ended June 30, 2020 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables BHE and Other (1) Total Customer Revenue: Regulated: Retail electric $ 2,188 $ 878 $ 1,167 $ — $ — $ — $ — $ — $ 4,233 Retail gas — 271 67 — — — — — 338 Wholesale 17 101 20 — — — — (2 ) 136 Transmission and distribution 46 33 45 424 — 333 — — 881 Interstate pipeline — — — — 621 — — (74 ) 547 Other 46 — 1 — — — — — 47 Total Regulated 2,297 1,283 1,300 424 621 333 — (76 ) 6,182 Nonregulated — 9 2 12 — 8 371 249 651 Total Customer Revenue 2,297 1,292 1,302 436 621 341 371 173 6,833 Other revenue 53 10 15 51 5 — 51 35 220 Total $ 2,350 $ 1,302 $ 1,317 $ 487 $ 626 $ 341 $ 422 $ 208 $ 7,053 For the Three-Month Period Ended June 30, 2019 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables BHE and Other (1) Total Customer Revenue: Regulated: Retail electric $ 1,107 $ 467 $ 658 $ — $ — $ — $ — $ — $ 2,232 Retail gas — 95 21 — — — — — 116 Wholesale 11 66 10 — — — — (1 ) 86 Transmission and distribution 25 15 24 209 — 168 — — 441 Interstate pipeline — — — — 212 — — (24 ) 188 Other — — — — — — — — — Total Regulated 1,143 643 713 209 212 168 — (25 ) 3,063 Nonregulated — 10 — 10 — 7 197 142 366 Total Customer Revenue 1,143 653 713 219 212 175 197 117 3,429 Other revenue 24 7 8 24 — — 52 23 138 Total $ 1,167 $ 660 $ 721 $ 243 $ 212 $ 175 $ 249 $ 140 $ 3,567 For the Six-Month Period Ended June 30, 2019 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables BHE and Other (1) Total Customer Revenue: Regulated: Retail electric $ 2,293 $ 910 $ 1,185 $ — $ — $ — $ — $ — $ 4,388 Retail gas — 355 58 — — — — — 413 Wholesale 39 176 28 — — — — (1 ) 242 Transmission and distribution 50 31 48 439 — 335 — — 903 Interstate pipeline — — — — 584 — — (61 ) 523 Other — — 1 — — — — — 1 Total Regulated 2,382 1,472 1,320 439 584 335 — (62 ) 6,470 Nonregulated — 16 — 18 — 8 323 281 646 Total Customer Revenue 2,382 1,488 1,320 457 584 343 323 219 7,116 Other revenue (2) 44 14 15 49 (1 ) — 93 62 276 Total $ 2,426 $ 1,502 $ 1,335 $ 506 $ 583 $ 343 $ 416 $ 281 $ 7,392 (1) The BHE and Other reportable segment represents amounts related principally to other entities, corporate functions and intersegment eliminations. (2) Includes net payments to counterparties for the financial settlement of certain derivative contracts at BHE Pipeline Group. Real Estate Services The following table summarizes the Company's real estate services Customer Revenue by line of business (in millions): HomeServices Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Customer Revenue: Brokerage $ 957 $ 1,204 $ 1,734 $ 1,915 Franchise 15 19 31 33 Total Customer Revenue 972 1,223 1,765 1,948 Other revenue 221 104 321 164 Total $ 1,193 $ 1,327 $ 2,086 $ 2,112 Remaining Performance Obligations The following table summarizes the Company's revenue it expects to recognize in future periods related to significant unsatisfied remaining performance obligations for fixed contracts with expected durations in excess of one year as of June 30, 2020 , by reportable segment (in millions): Performance obligations expected to be satisfied: Less than 12 months More than 12 months Total BHE Pipeline Group $ 884 $ 4,888 $ 5,772
PacifiCorp [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer [Text Block]	Revenue from Contracts with Customers The following table summarizes PacifiCorp's revenue from contracts with customers ("Customer Revenue") by customer class (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Customer Revenue: Retail: Residential $ 384 $ 349 $ 844 $ 838 Commercial 346 373 704 733 Industrial 268 289 545 581 Other retail 68 74 95 103 Total retail 1,066 1,085 2,188 2,255 Wholesale 17 11 17 39 Transmission 24 25 46 50 Other Customer Revenue 20 22 46 38 Total Customer Revenue 1,127 1,143 2,297 2,382 Other revenue 17 24 53 44 Total operating revenue $ 1,144 $ 1,167 $ 2,350 $ 2,426
Nevada Power Company [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer [Text Block]	Revenue from Contracts with Customers The following table summarizes Nevada Power's revenue from contracts with customers ("Customer Revenue") by customer class (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Customer Revenue: Retail: Residential $ 304 $ 266 $ 497 $ 466 Commercial 96 114 190 204 Industrial 83 112 154 182 Other 2 6 5 11 Total fully bundled 485 498 846 863 Distribution only service 6 8 13 15 Total retail 491 506 859 878 Wholesale, transmission and other 12 14 27 31 Total Customer Revenue 503 520 886 909 Other revenue 6 7 12 13 Total revenue $ 509 $ 527 $ 898 $ 922
Sierra Pacific Power Company [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer [Text Block]	Revenue from Contracts with Customers The following table summarizes Sierra Pacific's revenue from contracts with customers ("Customer Revenue") by customer class, including a reconciliation to Sierra Pacific's reportable segment information included in Note 11 (in millions): Three-Month Periods Ended June 30, 2020 2019 Electric Natural Gas Total Electric Natural Gas Total Customer Revenue: Retail: Residential $ 63 $ 14 $ 77 $ 58 $ 14 $ 72 Commercial 56 4 60 54 5 59 Industrial 34 2 36 46 2 48 Other 1 — 1 1 — 1 Total fully bundled 154 20 174 159 21 180 Distribution only service 1 — 1 1 — 1 Total retail 155 20 175 160 21 181 Wholesale, transmission and other 9 — 9 11 — 11 Total Customer Revenue 164 20 184 171 21 192 Other revenue 1 — 1 1 1 2 Total revenue $ 165 $ 20 $ 185 $ 172 $ 22 $ 194 Six-Month Periods Ended June 30, 2020 2019 Electric Gas Total Electric Gas Total Customer Revenue: Retail: Residential $ 132 $ 44 $ 176 $ 126 $ 38 $ 164 Commercial 112 17 129 108 15 123 Industrial 75 6 81 85 5 90 Other 2 — 2 3 — 3 Total fully bundled 321 67 388 322 58 380 Distribution only service 2 — 2 2 — 2 Total retail 323 67 390 324 58 382 Wholesale, transmission and other 24 — 24 28 — 28 Total Customer Revenue 347 67 414 352 58 410 Other revenue 2 1 3 2 1 3 Total revenue $ 349 $ 68 $ 417 $ 354 $ 59 $ 413
MidAmerican Energy Company [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer [Text Block]	Revenue from Contracts with Customers The following table summarizes MidAmerican Energy's revenue from contracts with customers ("Customer Revenue") by line of business and customer class, including a reconciliation to MidAmerican Energy's reportable segment information included in Note 10 , (in millions): For the Three-Month Period Ended June 30, 2020 For the Six-Month Period Ended June 30, 2020 Electric Natural Gas Other Total Electric Natural Gas Other Total Customer Revenue: Retail: Residential $ 166 $ 59 $ — $ 225 $ 314 $ 187 $ — $ 501 Commercial 73 15 — 88 143 58 — 201 Industrial 197 3 — 200 360 7 — 367 Natural gas transportation services — 7 — 7 — 18 — 18 Other retail (1) 32 1 — 33 61 1 — 62 Total retail 468 85 — 553 878 271 — 1,149 Wholesale 28 9 — 37 70 31 — 101 Multi-value transmission projects 17 — — 17 33 — — 33 Other Customer Revenue — — — — — — 1 1 Total Customer Revenue 513 94 — 607 981 302 1 1,284 Other revenue 5 1 — 6 8 2 — 10 Total operating revenue $ 518 $ 95 $ — $ 613 $ 989 $ 304 $ 1 $ 1,294 For the Three-Month Period Ended June 30, 2019 For the Six-Month Period Ended June 30, 2019 Electric Natural Gas Other Total Electric Natural Gas Other Total Customer Revenue: Retail: Residential $ 148 $ 66 $ — $ 214 $ 319 $ 241 $ — $ 560 Commercial 79 19 — 98 154 85 — 239 Industrial 204 3 — 207 367 9 — 376 Natural gas transportation services — 8 — 8 — 20 — 20 Other retail (1) 35 (1 ) — 34 70 — — 70 Total retail 466 95 — 561 910 355 — 1,265 Wholesale 51 15 — 66 127 49 — 176 Multi-value transmission projects 14 — — 14 30 — — 30 Other Customer Revenue — — 10 10 — — 15 15 Total Customer Revenue 531 110 10 651 1,067 404 15 1,486 Other revenue 7 1 — 8 13 2 — 15 Total operating revenue $ 538 $ 111 $ 10 $ 659 $ 1,080 $ 406 $ 15 $ 1,501 (1) Other retail includes provisions for rate refunds, for which any actual refunds will be reflected in the applicable customer classes upon resolution of the related regulatory proceeding.
MidAmerican Funding, LLC and Subsidiaries [Domain]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer [Text Block]	Revenue from Contracts with Customers Refer to Note 9 of MidAmerican Energy's Notes to Financial Statements. Additionally, MidAmerican Funding had other Accounting Standards Codification Topic 606 revenue of $3 million and $1 million for the three-month periods ended June 30, 2020 and 2019 , respectively, and $8 million and $1 million for the six-month periods ended June 30, 2020 and 2019 , respectively.

Components of Accumulated Other

Components of Accumulated Other Comprehensive Loss, Net	6 Months Ended
	Jun. 30, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Components of Accumulated Other Comprehensive Income (Loss), Net	Components of Other Comprehensive Income (Loss), Net The following table shows the change in AOCI attributable to BHE shareholders by each component of OCI, net of applicable income tax (in millions): Unrecognized Foreign Unrealized AOCI Amounts on Currency Gains (Losses) Attributable Retirement Translation on Cash To BHE Benefits Adjustment Flow Hedges Shareholders, Net Balance, December 31, 2018 $ (358 ) $ (1,623 ) $ 36 $ (1,945 ) Other comprehensive (loss) income (14 ) 106 (35 ) 57 Balance, June 30, 2019 $ (372 ) $ (1,517 ) $ 1 $ (1,888 ) Balance, December 31, 2019 $ (417 ) $ (1,296 ) $ 7 $ (1,706 ) Other comprehensive income (loss) 44 (439 ) (24 ) (419 ) Balance, June 30, 2020 $ (373 ) $ (1,735 ) $ (17 ) $ (2,125 )

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2020
Segment Reporting Information [Line Items]
Segment Reporting Disclosure [Text Block]	Segment Information The Company's reportable segments with foreign operations include Northern Powergrid , whose business is principally in the United Kingdom, BHE Transmission , whose business includes operations in Canada, and BHE Renewables , whose business includes operations in the Philippines. Intersegment eliminations and adjustments, including the allocation of goodwill, have been made. Information related to the Company's reportable segments is shown below (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Operating revenue: PacifiCorp $ 1,144 $ 1,167 $ 2,350 $ 2,426 MidAmerican Funding 616 660 1,302 1,502 NV Energy 695 721 1,317 1,335 Northern Powergrid 221 243 487 506 BHE Pipeline Group 225 212 626 583 BHE Transmission 169 175 341 343 BHE Renewables 244 249 422 416 HomeServices 1,193 1,327 2,086 2,112 BHE and Other (1) 105 140 208 281 Total operating revenue $ 4,612 $ 4,894 $ 9,139 $ 9,504 Depreciation and amortization: PacifiCorp $ 210 $ 209 $ 462 $ 414 MidAmerican Funding 175 179 351 356 NV Energy 125 120 249 240 Northern Powergrid 63 63 126 126 BHE Pipeline Group 25 29 89 57 BHE Transmission 55 60 115 118 BHE Renewables 71 69 142 139 HomeServices 12 11 23 24 BHE and Other (1) — (1 ) — (2 ) Total depreciation and amortization $ 736 $ 739 $ 1,557 $ 1,472 Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Operating income: PacifiCorp $ 256 $ 268 $ 490 $ 552 MidAmerican Funding 110 94 212 210 NV Energy 161 150 240 234 Northern Powergrid 89 110 221 239 BHE Pipeline Group 92 68 341 311 BHE Transmission 81 77 157 153 BHE Renewables 84 97 101 115 HomeServices 77 117 97 96 BHE and Other (1) (14 ) (22 ) (4 ) (32 ) Total operating income 936 959 1,855 1,878 Interest expense (503 ) (476 ) (986 ) (953 ) Capitalized interest 19 17 36 33 Allowance for equity funds 38 38 72 70 Interest and dividend income 20 36 40 66 Gains (losses) on marketable securities, net 583 6 610 (62 ) Other, net 52 30 25 65 Total income before income tax benefit and equity (loss) income $ 1,145 $ 610 $ 1,652 $ 1,097 Interest expense: PacifiCorp $ 110 $ 102 $ 212 $ 198 MidAmerican Funding 78 74 159 149 NV Energy 57 56 115 118 Northern Powergrid 31 35 63 69 BHE Pipeline Group 15 12 29 24 BHE Transmission 35 39 73 78 BHE Renewables 42 44 84 88 HomeServices 3 7 8 14 BHE and Other (1) 132 107 243 215 Total interest expense $ 503 $ 476 $ 986 $ 953 Operating revenue by country: United States $ 4,224 $ 4,476 $ 8,313 $ 8,653 United Kingdom 221 242 487 505 Canada 167 175 338 343 Philippines and other — 1 1 3 Total operating revenue by country $ 4,612 $ 4,894 $ 9,139 $ 9,504 Income before income tax benefit and equity (loss) income by country: United States $ 1,027 $ 482 $ 1,381 $ 818 United Kingdom 59 76 168 179 Canada 46 39 86 79 Philippines and other 13 13 17 21 Total income before income tax benefit and equity (loss) income by country $ 1,145 $ 610 $ 1,652 $ 1,097 As of June 30, December 31, 2020 2019 Assets: PacifiCorp $ 26,128 $ 24,861 MidAmerican Funding 23,155 22,664 NV Energy 14,420 14,128 Northern Powergrid 8,083 8,385 BHE Pipeline Group 6,182 6,100 BHE Transmission 8,616 8,776 BHE Renewables 11,134 9,961 HomeServices 4,703 3,846 BHE and Other (1) 1,996 1,330 Total assets $ 104,417 $ 100,051 (1) The differences between the reportable segment amounts and the consolidated amounts, described as BHE and Other , relate principally to other entities, including MidAmerican Energy Services, LLC, corporate functions and intersegment eliminations. The following table shows the change in the carrying amount of goodwill by reportable segment for the six-month period ended June 30, 2020 (in millions): BHE Pipeline Group PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Transmission BHE Renewables HomeServices Total December 31, 2019 $ 1,129 $ 2,102 $ 2,369 $ 978 $ 73 $ 1,520 $ 95 $ 1,456 $ 9,722 Foreign currency translation — — — (45 ) — (65 ) — — (110 ) June 30, 2020 $ 1,129 $ 2,102 $ 2,369 $ 933 $ 73 $ 1,455 $ 95 $ 1,456 $ 9,612
MidAmerican Energy Company [Member]
Segment Reporting Information [Line Items]
Segment Reporting Disclosure [Text Block]	Segment Information MidAmerican Energy has identified two reportable segments: regulated electric and regulated natural gas. The regulated electric segment derives most of its revenue from regulated retail sales of electricity to residential, commercial, and industrial customers and from wholesale sales. The regulated natural gas segment derives most of its revenue from regulated retail sales of natural gas to residential, commercial, and industrial customers and also obtains revenue by transporting natural gas owned by others through its distribution system. Pricing for regulated electric and regulated natural gas sales are established separately by regulatory agencies; therefore, management also reviews each segment separately to make decisions regarding allocation of resources and in evaluating performance. Common operating costs, interest income, interest expense and income tax expense are allocated to each segment based on certain factors, which primarily relate to the nature of the cost. The following tables provide information on a reportable segment basis (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Operating revenue: Regulated electric $ 518 $ 538 $ 989 $ 1,080 Regulated natural gas 95 111 304 406 Other — 10 1 15 Total operating revenue $ 613 $ 659 $ 1,294 $ 1,501 Operating income: Regulated electric $ 101 $ 87 $ 160 $ 153 Regulated natural gas 7 5 46 53 Other — 2 — 3 Total operating income 108 94 206 209 Interest expense (74 ) (70 ) (150 ) (139 ) Allowance for borrowed funds 4 7 7 13 Allowance for equity funds 9 17 17 32 Other, net 21 10 16 30 Income before income tax benefit $ 68 $ 58 $ 96 $ 145 As of June 30, December 31, Assets: Regulated electric $ 19,661 $ 19,093 Regulated natural gas 1,386 1,468 Other 1 3 Total assets $ 21,048 $ 20,564
MidAmerican Funding, LLC and Subsidiaries [Domain]
Segment Reporting Information [Line Items]
Segment Reporting Disclosure [Text Block]	Segment Information MidAmerican Funding has identified two reportable segments: regulated electric and regulated natural gas. The regulated electric segment derives most of its revenue from regulated retail sales of electricity to residential, commercial, and industrial customers and from wholesale sales. The regulated natural gas segment derives most of its revenue from regulated retail sales of natural gas to residential, commercial, and industrial customers and also obtains revenue by transporting natural gas owned by others through its distribution system. Pricing for regulated electric and regulated natural gas sales are established separately by regulatory agencies; therefore, management also reviews each segment separately to make decisions regarding allocation of resources and in evaluating performance. Common operating costs, interest income, interest expense and income tax expense are allocated to each segment based on certain factors, which primarily relate to the nature of the cost. "Other" in the tables below consists of the financial results and assets of nonregulated operations, MHC and MidAmerican Funding . The following tables provide information on a reportable segment basis (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Operating revenue: Regulated electric $ 518 $ 538 $ 989 $ 1,080 Regulated natural gas 95 111 304 406 Other 3 11 9 16 Total operating revenue $ 616 $ 660 $ 1,302 $ 1,502 Operating income: Regulated electric $ 101 $ 87 $ 160 $ 153 Regulated natural gas 7 5 46 53 Other 2 2 6 4 Total operating income 110 94 212 210 Interest expense (78 ) (74 ) (159 ) (149 ) Allowance for borrowed funds 4 7 7 13 Allowance for equity funds 9 17 17 32 Other, net 21 10 15 31 Income before income tax benefit $ 66 $ 54 $ 92 $ 137 As of June 30, December 31, Assets (1) : Regulated electric $ 20,852 $ 20,284 Regulated natural gas 1,465 1,547 Other 10 9 Total assets $ 22,327 $ 21,840 (1) Assets by reportable segment reflect the assignment of goodwill to applicable reporting units.
Sierra Pacific Power Company [Member]
Segment Reporting Information [Line Items]
Segment Reporting Disclosure [Text Block]	Segment Information Sierra Pacific has identified two reportable operating segments: regulated electric and regulated natural gas. The regulated electric segment derives most of its revenue from regulated retail sales of electricity to residential, commercial, and industrial customers and from wholesale sales. The regulated natural gas segment derives most of its revenue from regulated retail sales of natural gas to residential, commercial, and industrial customers and also obtains revenue by transporting natural gas owned by others through its distribution system. Pricing for regulated electric and regulated natural gas sales are established separately by the PUCN; therefore, management also reviews each segment separately to make decisions regarding allocation of resources and in evaluating performance. The following tables provide information on a reportable segment basis (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Operating revenue: Regulated electric $ 165 $ 172 $ 349 $ 354 Regulated natural gas 20 22 68 59 Total operating revenue $ 185 $ 194 $ 417 $ 413 Operating income: Regulated electric $ 20 $ 23 $ 53 $ 52 Regulated natural gas 3 4 10 12 Total operating income 23 27 63 64 Interest expense (14 ) (12 ) (28 ) (24 ) Allowance for borrowed funds 1 1 1 1 Allowance for equity funds 1 1 2 2 Other, net 3 1 4 3 Income before income tax expense $ 14 $ 18 $ 42 $ 46 As of June 30, December 31, 2020 2019 Assets: Regulated electric $ 3,375 $ 3,319 Regulated natural gas 309 308 Other (1) 27 44 Total assets $ 3,711 $ 3,671 (1) Consists principally of cash and cash equivalents not included in either the regulated electric or regulated natural gas segments.

BHE Shareholders' Equity (Notes

BHE Shareholders' Equity (Notes)	6 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Stockholders' Equity Note Disclosure [Text Block]	BHE Shareholders' Equity For the six-month periods ended June 30, 2020 and 2019 , BHE repurchased 180,358 shares of its common stock for $126 million and 447,712 shares of its common stock for $293 million , respectively.

Cash and Cash Equivalents and_2

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Supplemental Cash Flow Disclosure (Policies)	6 Months Ended
	Jun. 30, 2020
MidAmerican Funding, LLC and Subsidiaries [Domain]
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash equivalents consist of funds invested in money market mutual funds, United States Treasury Bills and other investments with a maturity of three months or less when purchased. Cash and cash equivalents exclude amounts where availability is restricted by legal requirements, loan agreements or other contractual provisions. Restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , consist substantially of funds restricted for the purpose of constructing solid waste facilities under tax-exempt bond obligation agreements and for wildlife preservation.
MidAmerican Energy Company [Member]
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash equivalents consist of funds invested in money market mutual funds, United States Treasury Bills and other investments with a maturity of three months or less when purchased. Cash and cash equivalents exclude amounts where availability is restricted by legal requirements, loan agreements or other contractual provisions. Restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , consist substantially of funds restricted for the purpose of constructing solid waste facilities under tax-exempt bond obligation agreements and for wildlife preservation.

Property, Plant and Equipment_2

Property, Plant and Equipment, Net (Tables)	6 Months Ended
	Jun. 30, 2020
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment [Table Text Block]	Property, plant and equipment, net consists of the following (in millions): As of Depreciable June 30, December 31, Life 2020 2019 Regulated assets: Utility generation, transmission and distribution systems 5-80 years $ 81,518 $ 81,127 Interstate natural gas pipeline assets 3-80 years 8,215 8,165 89,733 89,292 Accumulated depreciation and amortization (26,921 ) (26,353 ) Regulated assets, net 62,812 62,939 Nonregulated assets: Independent power plants 5-30 years 7,004 6,983 Other assets 3-30 years 1,846 1,834 8,850 8,817 Accumulated depreciation and amortization (2,336 ) (2,183 ) Nonregulated assets, net 6,514 6,634 Net operating assets 69,326 69,573 Construction work-in-progress 4,499 3,732 Property, plant and equipment, net $ 73,825 $ 73,305
MidAmerican Energy Company [Member]
Property, Plant and Equipment [Line Items]
Public Utility Property, Plant, and Equipment	Property, plant and equipment, net consists of the following (in millions): As of June 30, December 31, Depreciable Life 2020 2019 Utility plant in service, net: Generation 20-70 years $ 15,800 $ 15,687 Transmission 52-75 years 2,208 2,124 Electric distribution 20-75 years 4,186 4,095 Natural gas distribution 29-75 years 1,844 1,820 Utility plant in service 24,038 23,726 Accumulated depreciation and amortization (6,388 ) (6,139 ) Utility plant in service, net 17,650 17,587 Nonregulated property, net: Nonregulated property gross 20-50 years 7 7 Accumulated depreciation and amortization (1 ) (1 ) Nonregulated property, net 6 6 17,656 17,593 Construction work-in-progress 1,100 782 Property, plant and equipment, net $ 18,756 $ 18,375
PacifiCorp [Member]
Property, Plant and Equipment [Line Items]
Public Utility Property, Plant, and Equipment	As of June 30, December 31, Depreciable Life 2020 2019 Utility Plant: Generation 14 - 67 years $ 12,463 $ 12,509 Transmission 58 - 75 years 6,564 6,482 Distribution 20 - 70 years 7,439 7,307 Intangible plant (1) 5 - 75 years 1,026 1,016 Other 5 - 60 years 1,468 1,449 Utility plant in service 28,960 28,763 Accumulated depreciation and amortization (9,863 ) (9,803 ) Utility plant in-service, net 19,097 18,960 Other non-regulated, net of accumulated depreciation and amortization 59 years 9 10 Plant, net 19,106 18,970 Construction work-in-progress 2,447 2,003 Property, plant and equipment, net $ 21,553 $ 20,973 (1) Computer software costs included in intangible plant are initially assigned a depreciable life of 5 to 10 years. For the six-month period ended June 30, 2020 , PacifiCorp acquired wind turbines from BHE Wind, LLC, an indirect wholly owned subsidiary of BHE, for $147 million . The wind turbines will be installed as part of newly constructed wind-powered generating facilities that are planned to be placed in service in 2020.
Nevada Power Company [Member]
Property, Plant and Equipment [Line Items]
Public Utility Property, Plant, and Equipment	Property, plant and equipment, net consists of the following (in millions): As of Depreciable Life June 30, December 31, 2020 2019 Utility plant: Generation 30 - 55 years $ 3,617 $ 3,541 Transmission 45 - 70 years 1,485 1,444 Distribution 20 - 65 years 3,683 3,567 General and intangible plant 5 - 65 years 786 741 Utility plant 9,571 9,293 Accumulated depreciation and amortization (3,079 ) (2,951 ) Utility plant, net 6,492 6,342 Other non-regulated, net of accumulated depreciation and amortization 45 years 1 1 Plant, net 6,493 6,343 Construction work-in-progress 156 195 Property, plant and equipment, net $ 6,649 $ 6,538
Sierra Pacific Power Company [Member]
Property, Plant and Equipment [Line Items]
Public Utility Property, Plant, and Equipment	Property, plant and equipment, net consists of the following (in millions): As of Depreciable Life June 30, December 31, 2020 2019 Utility plant: Electric generation 25 - 60 years $ 1,130 $ 1,133 Electric transmission 50 - 100 years 879 840 Electric distribution 20 - 100 years 1,700 1,669 Electric general and intangible plant 5 - 70 years 184 178 Natural gas distribution 35 - 70 years 422 417 Natural gas general and intangible plant 5 - 70 years 14 14 Common general 5 - 70 years 344 338 Utility plant 4,673 4,589 Accumulated depreciation and amortization (1,699 ) (1,629 ) Utility plant, net 2,974 2,960 Other non-regulated, net of accumulated depreciation and amortization 70 years 2 2 Plant, net 2,976 2,962 Construction work-in-progress 123 113 Property, plant and equipment, net $ 3,099 $ 3,075

Investments and Restricted Ca_2

Investments and Restricted Cash and Investments (Tables)	6 Months Ended
	Jun. 30, 2020
Investments and Restricted Cash and Investments [Abstract]
Investments and Restricted Cash and Investments	Investments and restricted cash and cash equivalents and investments consists of the following (in millions): As of June 30, December 31, 2020 2019 Investments: BYD Company Limited common stock $ 1,737 $ 1,122 Rabbi trusts 396 410 Other 191 187 Total investments 2,324 1,719 Equity method investments: BHE Renewables tax equity investments 4,183 3,130 Electric Transmission Texas, LLC 580 555 Bridger Coal Company 83 81 Other 108 181 Total equity method investments 4,954 3,947 Restricted cash and cash equivalents and investments: Quad Cities Station nuclear decommissioning trust funds 607 599 Other restricted cash and cash equivalents 255 230 Total restricted cash and cash equivalents and investments 862 829 Total investments and restricted cash and cash equivalents and investments $ 8,140 $ 6,495 Reflected as: Current assets $ 266 $ 240 Noncurrent assets 7,874 6,255 Total investments and restricted cash and cash equivalents and investments $ 8,140 $ 6,495
Unrealized Gain (Loss) on Investments [Table Text Block]	Gains (losses) on marketable securities, net recognized during the period consists of the following (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Unrealized gains (losses) recognized on marketable securities still held at the reporting date $ 584 $ 7 $ 609 $ (61 ) Net (losses) gains recognized on marketable securities sold during the period (1 ) (1 ) 1 (1 ) Gains (losses) on marketable securities, net $ 583 $ 6 $ 610 $ (62 )

Cash and Cash Equivalents and_3

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Supplemental Cash Flow Disclosure (Tables)	6 Months Ended
	Jun. 30, 2020
Condensed Cash Flow Statements, Captions [Line Items]
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Cash equivalents consist of funds invested in money market mutual funds, United States Treasury Bills and other investments with a maturity of three months or less when purchased. Cash and cash equivalents exclude amounts where availability is restricted by legal requirements, loan agreements or other contractual provisions. Restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , consist substantially of funds restricted for the purpose of constructing solid waste facilities under tax-exempt bond obligation agreements and debt service obligations for certain of the Company's nonregulated renewable energy projects. A reconciliation of cash and cash equivalents and restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , as presented in the Consolidated Statements of Cash Flows is outlined below and disaggregated by the line items in which they appear on the Consolidated Balance Sheets (in millions): As of June 30, December 31, 2020 2019 Cash and cash equivalents $ 1,815 $ 1,040 Restricted cash and cash equivalents 237 212 Investments and restricted cash and cash equivalents and investments 18 16 Total cash and cash equivalents and restricted cash and cash equivalents $ 2,070 $ 1,268
Sierra Pacific Power Company [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	A reconciliation of cash and cash equivalents and restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , as presented in the Statements of Cash Flows is outlined below and disaggregated by the line items in which they appear on the Balance Sheets (in millions): As of June 30, December 31, 2020 2019 Cash and cash equivalents $ 12 $ 27 Restricted cash and cash equivalents included in other current assets 5 5 Total cash and cash equivalents and restricted cash and cash equivalents $ 17 $ 32
Nevada Power Company [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	A reconciliation of cash and cash equivalents and restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , as presented in the Consolidated Statements of Cash Flows is outlined below and disaggregated by the line items in which they appear on the Consolidated Balance Sheets (in millions): As of June 30, December 31, 2020 2019 Cash and cash equivalents $ 16 $ 15 Restricted cash and cash equivalents included in other current assets 9 10 Total cash and cash equivalents and restricted cash and cash equivalents $ 25 $ 25
PacifiCorp [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	As of June 30, December 31, 2020 2019 Cash and cash equivalents $ 711 $ 30 Restricted cash included in other current assets 5 4 Restricted cash included in other assets 3 2 Total cash and cash equivalents and restricted cash and cash equivalents $ 719 $ 36
MidAmerican Funding, LLC and Subsidiaries [Domain]
Condensed Cash Flow Statements, Captions [Line Items]
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	A reconciliation of cash and cash equivalents and restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , as presented in the Consolidated Statements of Cash Flows is outlined below and disaggregated by the line items in which they appear on the Consolidated Balance Sheets (in millions): As of June 30 December 31 2020 2019 Cash and cash equivalents $ 8 $ 288 Restricted cash and cash equivalents in other current assets 27 43 Total cash and cash equivalents and restricted cash and cash equivalents $ 35 $ 331
MidAmerican Energy Company [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	A reconciliation of cash and cash equivalents and restricted cash and cash equivalents as of June 30, 2020 and December 31, 2019 , as presented in the Statements of Cash Flows is outlined below and disaggregated by the line items in which they appear on the Balance Sheets (in millions): As of June 30, December 31 2020 2019 Cash and cash equivalents $ 5 $ 287 Restricted cash and cash equivalents in other current assets 27 43 Total cash and cash equivalents and restricted cash and cash equivalents $ 32 $ 330

Income Taxes (Tables)

Income Taxes (Tables)	6 Months Ended
	Jun. 30, 2020
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Income Tax Disclosure [Text Block]	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 Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Federal statutory income tax rate 21 % 21 % 21 % 21 % Income tax credits (20 ) (29 ) (28 ) (29 ) State income tax, net of federal income tax benefit 2 — 1 (8 ) Income tax effect of foreign income (2 ) (1 ) (2 ) (2 ) Effects of ratemaking (1 ) (2 ) (3 ) (2 ) Other, net (1 ) (1 ) (1 ) — Effective income tax rate (1 )% (12 )% (12 )% (20 )% Income tax credits relate primarily to production tax credits ("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. The Company's provision for income taxes has been computed on a stand-alone basis. Berkshire Hathaway includes the Company in its consolidated United States federal and Iowa state income tax returns and the majority of the Company's United States federal income tax is remitted to or received from Berkshire Hathaway . For the six-month periods ended June 30, 2020 and 2019 , the Company made payments for federal income taxes to Berkshire Hathaway totaling $100 million and $- million, respectively.
Schedule of Effective Income Tax Rate Reconciliation	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 Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Federal statutory income tax rate 21 % 21 % 21 % 21 % Income tax credits (20 ) (29 ) (28 ) (29 ) State income tax, net of federal income tax benefit 2 — 1 (8 ) Income tax effect of foreign income (2 ) (1 ) (2 ) (2 ) Effects of ratemaking (1 ) (2 ) (3 ) (2 ) Other, net (1 ) (1 ) (1 ) — Effective income tax rate (1 )% (12 )% (12 )% (20 )%
Sierra Pacific Power Company [Member]
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Income Tax Disclosure [Text Block]	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 Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Federal statutory income tax rate 21 % 21 % 21 % 21 % Effects of ratemaking (14 ) 1 (10 ) 1 Other — — (1 ) — Effective income tax rate 7 % 22 % 10 % 22 % 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.
Schedule of Effective Income Tax Rate Reconciliation	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 Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Federal statutory income tax rate 21 % 21 % 21 % 21 % Effects of ratemaking (14 ) 1 (10 ) 1 Other — — (1 ) — Effective income tax rate 7 % 22 % 10 % 22 %
PacifiCorp [Member]
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Income Tax Disclosure [Text Block]	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 Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Federal statutory income tax rate 21 % 21 % 21 % 21 % State income tax, net of federal income tax benefit 3 3 3 3 Federal income tax credits (9 ) (4 ) (10 ) (4 ) Effects of ratemaking (1 ) (1 ) (1 ) (1 ) Amortization of excess deferred income taxes (1 ) — (10 ) — Other 1 (1 ) — — Effective income tax rate 14 % 18 % 3 % 19 % 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. Amortization of excess deferred income taxes is primarily attributable to the amortization of $30 million of Oregon allocated excess deferred income taxes pursuant to the Oregon Renewable Adjustment Clause settlement, whereby a portion of Oregon allocated excess deferred income taxes was used to accelerate depreciation on Oregon's share of certain repowered wind facilities. Berkshire Hathaway includes BHE and its subsidiaries in its United States 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, 2020 and 2019, PacifiCorp made net cash payments for federal and state income tax to BHE totaling $42 million and $11 million , respectively.
Schedule of Effective Income Tax Rate Reconciliation	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 Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Federal statutory income tax rate 21 % 21 % 21 % 21 % State income tax, net of federal income tax benefit 3 3 3 3 Federal income tax credits (9 ) (4 ) (10 ) (4 ) Effects of ratemaking (1 ) (1 ) (1 ) (1 ) Amortization of excess deferred income taxes (1 ) — (10 ) — Other 1 (1 ) — — Effective income tax rate 14 % 18 % 3 % 19 %
MidAmerican Energy Company [Member]
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Income Tax Disclosure [Text Block]	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 Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Federal statutory income tax rate 21 % 21 % 21 % 21 % Income tax credits (186 ) (158 ) (257 ) (131 ) State income tax, net of federal income tax benefit (35 ) (22 ) (33 ) (21 ) Effects of ratemaking (9 ) (10 ) (7 ) (9 ) Other, net 2 — 1 (1 ) Effective income tax rate (207 )% (169 )% (275 )% (141 )% 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. Berkshire Hathaway includes BHE and subsidiaries in its United States 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 . The timing of MidAmerican Energy's income tax cash flows from period to period can be significantly affected by the estimated federal income tax payment methods and assumptions for each payment date. MidAmerican Energy made net cash payments for income tax to BHE totaling $19 million and $9 million for the six-month periods ended June 30, 2020 and 2019 , respectively.
Schedule of Effective Income Tax Rate Reconciliation	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 Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Federal statutory income tax rate 21 % 21 % 21 % 21 % Income tax credits (186 ) (158 ) (257 ) (131 ) State income tax, net of federal income tax benefit (35 ) (22 ) (33 ) (21 ) Effects of ratemaking (9 ) (10 ) (7 ) (9 ) Other, net 2 — 1 (1 ) Effective income tax rate (207 )% (169 )% (275 )% (141 )%
MidAmerican Funding, LLC and Subsidiaries [Domain]
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Income Tax Disclosure [Text Block]	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 Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Federal statutory income tax rate 21 % 21 % 21 % 21 % Income tax credits (192 ) (171 ) (269 ) (139 ) State income tax, net of federal income tax benefit (37 ) (25 ) (35 ) (23 ) Effects of ratemaking (9 ) (11 ) (7 ) (9 ) Other, net 2 3 1 — Effective income tax rate (215 )% (183 )% (289 )% (150 )% 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. Berkshire Hathaway includes BHE and subsidiaries in its United States 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 . The timing of MidAmerican Funding's income tax cash flows from period to period can be significantly affected by the estimated federal income tax payment methods and assumptions for each payment date. MidAmerican Funding made net cash payments for income tax to BHE totaling $19 million and $8 million for the six-month period ended June 30, 2020 and 2019 , respectively.
Schedule of Effective Income Tax Rate Reconciliation	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 Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Federal statutory income tax rate 21 % 21 % 21 % 21 % Income tax credits (192 ) (171 ) (269 ) (139 ) State income tax, net of federal income tax benefit (37 ) (25 ) (35 ) (23 ) Effects of ratemaking (9 ) (11 ) (7 ) (9 ) Other, net 2 3 1 — Effective income tax rate (215 )% (183 )% (289 )% (150 )%

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	6 Months Ended
	Jun. 30, 2020
Defined Benefit Plan Disclosure [Line Items]
Schedule of Defined Benefit Plans Disclosures	Domestic Operations Net periodic benefit cost (credit) for the domestic pension and other postretirement benefit plans included the following components (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Pension: Service cost $ 4 $ 4 $ 7 $ 8 Interest cost 23 28 46 55 Expected return on plan assets (35 ) (39 ) (70 ) (77 ) Net amortization 8 7 17 16 Net periodic benefit cost $ — $ — $ — $ 2 Other postretirement: Service cost $ 3 $ 3 $ 4 $ 5 Interest cost 4 8 10 14 Expected return on plan assets (7 ) (10 ) (16 ) (20 ) Net amortization (3 ) (1 ) (4 ) (3 ) Net periodic benefit credit $ (3 ) $ — $ (6 ) $ (4 ) Foreign Operations Net periodic benefit (credit) cost for the United Kingdom pension plan included the following components (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Service cost $ 4 $ 4 $ 8 $ 8 Interest cost 10 13 20 26 Expected return on plan assets (25 ) (25 ) (50 ) (50 ) Net amortization 11 9 21 18 Net periodic benefit (credit) cost $ — $ 1 $ (1 ) $ 2
PacifiCorp [Member]
Defined Benefit Plan Disclosure [Line Items]
Schedule of Defined Benefit Plans Disclosures	Net periodic benefit credit for the pension and other postretirement benefit plans included the following components (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Pension: Service cost $ — $ — $ — $ — Interest cost 9 11 18 22 Expected return on plan assets (14 ) (16 ) (28 ) (33 ) Net amortization 4 3 9 6 Net periodic benefit credit $ (1 ) $ (2 ) (1 ) (5 ) Other postretirement: Service cost $ 1 $ 1 $ 1 $ 1 Interest cost 2 3 5 6 Expected return on plan assets (3 ) (5 ) (7 ) (10 ) Net amortization — — — — Net periodic benefit credit $ — $ (1 ) (1 ) (3 )
MidAmerican Energy Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Schedule of Defined Benefit Plans Disclosures	Net periodic benefit credit for the plans of MidAmerican Energy and the aforementioned affiliates included the following components (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Pension: Service cost $ 1 $ 1 $ 2 $ 3 Interest cost 6 8 12 15 Expected return on plan assets (10 ) (11 ) (20 ) (21 ) Net amortization 1 — 1 — Net periodic benefit credit $ (2 ) $ (2 ) $ (5 ) $ (3 ) Other postretirement: Service cost $ 1 $ 2 $ 2 $ 3 Interest cost 1 3 3 5 Expected return on plan assets (3 ) (3 ) (6 ) (6 ) Net amortization (2 ) (1 ) (3 ) (2 ) Net periodic benefit (credit) cost $ (3 ) $ 1 $ (4 ) $ —
Nevada Power Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Schedule of Amounts Recognized in Balance Sheet	Amounts payable to NV Energy are included on the Consolidated Balance Sheets and consist of the following (in millions): As of June 30, December 31, 2020 2019 Qualified Pension Plan: Other long-term liabilities $ 18 $ 18 Non-Qualified Pension Plans: Other current liabilities 1 1 Other long-term liabilities 9 9 Other Postretirement Plans: Other long-term liabilities 2 2
Sierra Pacific Power Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Schedule of Amounts Recognized in Balance Sheet	Amounts payable to NV Energy are included on the Balance Sheets and consist of the following (in millions): As of June 30, December 31, 2020 2019 Qualified Pension Plan: Other long-term liabilities $ 3 $ 4 Non-Qualified Pension Plans: Other current liabilities 1 1 Other long-term liabilities 7 8 Other Postretirement Plans: Other long-term liabilities 7 7

Risk Management and Hedging A_2

Risk Management and Hedging Activities (Tables) - PacifiCorp [Member]	6 Months Ended
	Jun. 30, 2020
Derivative [Line Items]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The following table, which reflects master netting arrangements and excludes contracts that have been designated as normal under the normal purchases or normal sales exception afforded by GAAP, summarizes the fair value of PacifiCorp's derivative contracts, on a gross basis, and reconciles those amounts to the amounts presented on a net basis on the Consolidated Balance Sheets (in millions): Other Other Other Current Other Current Long-term Assets Assets Liabilities Liabilities Total As of June 30, 2020 Not designated as hedging contracts (1) : Commodity assets $ 9 $ 7 $ 6 $ — $ 22 Commodity liabilities (4 ) — (44 ) (42 ) (90 ) Total 5 7 (38 ) (42 ) (68 ) Total derivatives 5 7 (38 ) (42 ) (68 ) Cash collateral receivable — — 19 21 40 Total derivatives - net basis $ 5 $ 7 $ (19 ) $ (21 ) $ (28 ) As of December 31, 2019 Not designated as hedging contracts (1) : Commodity assets $ 15 $ 2 $ 4 $ — $ 21 Commodity liabilities (3 ) — (31 ) (50 ) (84 ) Total 12 2 (27 ) (50 ) (63 ) Total derivatives 12 2 (27 ) (50 ) (63 ) Cash collateral receivable — — 20 27 47 Total derivatives - net basis $ 12 $ 2 $ (7 ) $ (23 ) $ (16 ) (1) PacifiCorp's commodity derivatives are generally included in rates and as of June 30, 2020 and December 31, 2019 , a regulatory asset of $68 million and $62 million , respectively, was recorded related to the net derivative liability of $68 million and $63 million , respectively.
Schedule of Regulatory Assets (Liabilities), Net, Unrealized Loss (Gain), Net, on Derivative Contracts	The following table reconciles the beginning and ending balances of PacifiCorp's net regulatory assets and summarizes the pre-tax gains and losses on commodity derivative contracts recognized in net regulatory assets, as well as amounts reclassified to earnings (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Beginning balance $ 84 $ 78 $ 62 $ 96 Changes in fair value (6 ) 26 28 (28 ) Net gains (losses) reclassified to operating revenue 5 6 13 (16 ) Net (losses) gains reclassified to cost of fuel and energy (15 ) (9 ) (35 ) 49 Ending balance $ 68 $ 101 $ 68 $ 101
Schedule of Notional Amounts of Outstanding Derivative Positions	The following table summarizes the net notional amounts of outstanding commodity derivative contracts with fixed price terms that comprise the mark-to-market values as of (in millions): Unit of June 30, December 31, Measure 2020 2019 Electricity sales, net Megawatt hours (1 ) (2 ) Natural gas purchases Decatherms 116 129

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following table presents the Company's financial assets and liabilities recognized on the Consolidated Balance Sheets and measured at fair value on a recurring basis (in millions): Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Other (1) Total As of June 30, 2020 Assets: Commodity derivatives $ 1 $ 54 $ 106 $ (27 ) $ 134 Interest rate derivatives — 1 78 — 79 Mortgage loans held for sale — 1,617 — — 1,617 Money market mutual funds (2) 1,357 — — — 1,357 Debt securities: United States government obligations 176 — — — 176 International government obligations — 4 — — 4 Corporate obligations — 73 — — 73 Municipal obligations — 3 — — 3 Agency, asset and mortgage-backed obligations — 5 — — 5 Equity securities: United States companies 336 — — — 336 International companies 1,745 — — — 1,745 Investment funds 194 — — — 194 $ 3,809 $ 1,757 $ 184 $ (27 ) $ 5,723 Liabilities: Commodity derivatives $ (2 ) $ (136 ) $ (62 ) $ 94 $ (106 ) Interest rate derivatives (5 ) (60 ) — — (65 ) $ (7 ) $ (196 ) $ (62 ) $ 94 $ (171 ) Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Other (1) Total As of December 31, 2019 Assets: Commodity derivatives $ — $ 45 $ 108 $ (24 ) $ 129 Interest rate derivatives — 2 14 — 16 Mortgage loans held for sale — 1,039 — — 1,039 Money market mutual funds (2) 824 — — — 824 Debt securities: United States government obligations 189 — — — 189 International government obligations — 4 — — 4 Corporate obligations — 58 — — 58 Municipal obligations — 1 — — 1 Agency, asset and mortgage-backed obligations — 1 — — 1 Equity securities: United States companies 336 — — — 336 International companies 1,131 — — — 1,131 Investment funds 169 — — — 169 $ 2,649 $ 1,150 $ 122 $ (24 ) $ 3,897 Liabilities: Commodity derivatives $ (4 ) $ (143 ) $ (11 ) $ 103 $ (55 ) Interest rate derivatives (2 ) (19 ) — — (21 ) $ (6 ) $ (162 ) $ (11 ) $ 103 $ (76 ) (1) Represents netting under master netting arrangements and a net cash collateral receivable of $67 million and $79 million as of June 30, 2020 and December 31, 2019 , respectively. (2) Amounts are included in cash and cash equivalents; other current assets; and noncurrent investments and restricted cash and investments on the Consolidated Balance Sheets. The fair value of these money market mutual funds approximates cost.
Fair Value Assets and Liabilities Net Measured On Recurring Basis Unobservable Input Reconciliation	The following table reconciles the beginning and ending balances of the Company's assets and liabilities measured at fair value on a recurring basis using significant Level 3 inputs (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, Interest Interest Commodity Rate Commodity Rate Derivatives Derivatives Derivatives Derivatives 2020: Beginning balance $ 52 $ 45 $ 97 $ 14 Changes included in earnings (1 ) 264 (4 ) 336 Changes in fair value recognized in net regulatory assets (16 ) — (56 ) — Purchases 1 — 3 — Settlements 8 (231 ) 4 (272 ) Ending balance $ 44 $ 78 $ 44 $ 78 2019: Beginning balance $ 86 $ 18 $ 99 $ 10 Changes included in earnings 8 94 5 147 Changes in fair value recognized in OCI (1 ) — (1 ) — Changes in fair value recognized in net regulatory assets (12 ) — (23 ) — Purchases 3 — 4 — Settlements 2 (89 ) 2 (134 ) Ending balance $ 86 $ 23 $ 86 $ 23
Fair Value, by Balance Sheet Grouping	The following table presents the carrying value and estimated fair value of the Company's long-term debt (in millions): As of June 30, 2020 As of December 31, 2019 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 42,905 $ 52,847 $ 39,353 $ 46,004
Nevada Power Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following table presents Nevada Power's assets and liabilities recognized on the Consolidated Balance Sheets and measured at fair value on a recurring basis (in millions): Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Total As of June 30, 2020 Assets: Money market mutual funds (1) $ 8 $ — $ — $ 8 Investment funds 2 — — 2 $ 10 $ — $ — $ 10 Liabilities - commodity derivatives $ — $ — $ (44 ) $ (44 ) As of December 31, 2019 Assets: Money market mutual funds (1) $ 10 $ — $ — $ 10 Investment funds 2 — — 2 $ 12 $ — $ — $ 12 Liabilities - commodity derivatives $ — $ — $ (8 ) $ (8 ) (1) Amounts are included in cash and cash equivalents on the Consolidated Balance Sheets. The fair value of these money market mutual funds approximates cost.
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation	The following table reconciles the beginning and ending balances of Nevada Power's commodity derivative assets and liabilities measured at fair value on a recurring basis using significant Level 3 inputs (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Beginning balance $ (38 ) (5 ) $ (8 ) $ 3 Changes in fair value recognized in regulatory assets (13 ) (8 ) (44 ) (17 ) Settlements 7 2 8 3 Ending balance $ (44 ) $ (11 ) $ (44 ) $ (11 )
Fair Value, by Balance Sheet Grouping	The following table presents the carrying value and estimated fair value of Nevada Power's long‑term debt (in millions): As of June 30, 2020 As of December 31, 2019 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 2,495 $ 3,187 $ 2,351 $ 2,848
PacifiCorp [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following table presents PacifiCorp's financial assets and liabilities recognized on the Consolidated Balance Sheets and measured at fair value on a recurring basis (in millions): Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Other (1) Total As of June 30, 2020 Assets: Commodity derivatives $ — $ 22 $ — $ (10 ) $ 12 Money market mutual funds (2) 450 — — — 450 Investment funds 26 — — — 26 $ 476 $ 22 $ — $ (10 ) $ 488 Liabilities - Commodity derivatives $ — $ (90 ) $ — $ 50 $ (40 ) As of December 31, 2019 Assets: Commodity derivatives $ — $ 21 $ — $ (7 ) $ 14 Money market mutual funds (2) 23 — — — 23 Investment funds 25 — — — 25 $ 48 $ 21 $ — $ (7 ) $ 62 Liabilities - Commodity derivatives $ — $ (84 ) $ — $ 54 $ (30 ) (1) Represents netting under master netting arrangements and a net cash collateral receivable of $40 million and $47 million as of June 30, 2020 and December 31, 2019 , respectively. (2) Amounts are included in cash and cash equivalents, other current assets and other assets on the Consolidated Balance Sheets. The fair value of these money market mutual funds approximates cost.
Fair Value, by Balance Sheet Grouping	PacifiCorp's long-term debt is carried at cost on the Consolidated Balance Sheets. The fair value of PacifiCorp's long-term debt is a Level 2 fair value measurement and has been estimated based upon quoted market prices, where available, or at the present value of future cash flows discounted at rates consistent with comparable maturities with similar credit risks. The carrying value of PacifiCorp's variable-rate long-term debt approximates fair value because of the frequent repricing of these instruments at market rates. The following table presents the carrying value and estimated fair value of PacifiCorp's long-term debt (in millions): As of June 30, 2020 As of December 31, 2019 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 8,648 $ 10,870 $ 7,658 $ 9,280
MidAmerican Energy Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following table presents MidAmerican Energy's financial assets and liabilities recognized on the Balance Sheets and measured at fair value on a recurring basis (in millions): Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Other (1) Total As of June 30, 2020: Assets: Commodity derivatives $ 1 $ 3 $ 4 $ (3 ) $ 5 Money market mutual funds (2) 12 — — — 12 Debt securities: United States government obligations 176 — — — 176 International government obligations — 4 — — 4 Corporate obligations — 73 — — 73 Municipal obligations — 3 — — 3 Agency, asset and mortgage-backed obligations — 5 — — 5 Equity securities: United States companies 336 — — — 336 International companies 8 — — — 8 Investment funds 20 — — — 20 $ 553 $ 88 $ 4 $ (3 ) $ 642 Liabilities - commodity derivatives $ — $ (6 ) $ (2 ) $ 3 $ (5 ) Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Other (1) Total As of December 31, 2019: Assets: Commodity derivatives $ — $ 2 $ 1 $ (1 ) $ 2 Money market mutual funds (2) 274 — — — 274 Debt securities: United States government obligations 189 — — — 189 International government obligations — 4 — — 4 Corporate obligations — 58 — — 58 Municipal obligations — 1 — — 1 Agency, asset and mortgage-backed obligations — 1 — — 1 Equity securities: United States companies 336 — — — 336 International companies 9 — — — 9 Investment funds 15 — — — 15 $ 823 $ 66 $ 1 $ (1 ) $ 889 Liabilities - commodity derivatives $ — $ (9 ) $ — $ 2 $ (7 ) (1) Represents netting under master netting arrangements and a net cash collateral receivable of $- million and $1 million as of June 30, 2020 and December 31, 2019 , respectively. (2) Amounts are included in cash and cash equivalents and investments and restricted investments on the Balance Sheets. The fair value of these money market mutual funds approximates cost.
Fair Value, by Balance Sheet Grouping	MidAmerican Energy's long-term debt is carried at cost on the Balance Sheets. The fair value of MidAmerican Energy's long-term debt is a Level 2 fair value measurement and has been estimated based upon quoted market prices, where available, or at the present value of future cash flows discounted at rates consistent with comparable maturities with similar credit risks. The carrying value of MidAmerican Energy's variable-rate long-term debt approximates fair value because of the frequent repricing of these instruments at market rates. The following table presents the carrying value and estimated fair value of MidAmerican Energy's long-term debt (in millions): As of June 30, 2020 As of December 31, 2019 Carrying Value Fair Value Carrying Value Fair Value Long-term debt $ 7,209 $ 9,019 $ 7,208 $ 8,283
MidAmerican Funding, LLC and Subsidiaries [Domain]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, by Balance Sheet Grouping	MidAmerican Funding 's long-term debt is carried at cost on the Consolidated Financial Statements. The fair value of MidAmerican Funding 's long-term debt is a Level 2 fair value measurement and has been estimated based upon quoted market prices, where available, or at the present value of future cash flows discounted at rates consistent with comparable maturities with similar credit risks. The carrying value of MidAmerican Funding 's variable-rate long-term debt approximates fair value because of the frequent repricing of these instruments at market rates. The following table presents the carrying value and estimated fair value of MidAmerican Funding 's long-term debt (in millions): As of June 30, 2020 As of December 31, 2019 Carrying Value Fair Value Carrying Value Fair Value Long-term debt $ 7,449 $ 9,357 $ 7,448 $ 8,599
Sierra Pacific Power Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following table presents Sierra Pacific's assets and liabilities recognized on the Balance Sheets and measured at fair value on a recurring basis (in millions): Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Total As of June 30, 2020 Assets: Money market mutual funds (1) $ 9 $ — $ — $ 9 Investment funds 1 — — 1 $ 10 $ — $ — $ 10 Liabilities - commodity derivatives $ — $ — $ (12 ) $ (12 ) As of December 31, 2019 Assets - money market mutual funds (1) $ 25 $ — $ — $ 25 Liabilities - commodity derivatives $ — $ — $ (1 ) $ (1 ) (1) Amounts are included in cash and cash equivalents on the Balance Sheets. The fair value of these money market mutual funds approximates cost.
Fair Value, by Balance Sheet Grouping	The following table presents the carrying value and estimated fair value of Sierra Pacific's long-term debt (in millions): As of June 30, 2020 As of December 31, 2019 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 1,135 $ 1,324 $ 1,135 $ 1,258

Revenue from Contracts with C_2

Revenue from Contracts with Customers Revenue from Contracts with Customers (Tables)	6 Months Ended
	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer [Text Block]	Revenue from Contracts with Customers Energy Products and Services The following table summarizes the Company's energy products and services revenue from contracts with customers ("Customer Revenue") by regulated energy and nonregulated energy, with further disaggregation of regulated energy by line of business, including a reconciliation to the Company's reportable segment information included in Note 13 (in millions): For the Three-Month Period Ended June 30, 2020 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables BHE and Other (1) Total Customer Revenue: Regulated: Retail electric $ 1,066 $ 468 $ 638 $ — $ — $ — $ — $ — $ 2,172 Retail gas — 84 20 — — — — — 104 Wholesale 17 37 6 — — — — (1 ) 59 Transmission and distribution 24 18 22 191 — 164 — — 419 Interstate pipeline — — — — 221 — — (26 ) 195 Other 20 — — — — — — — 20 Total Regulated 1,127 607 686 191 221 164 — (27 ) 2,969 Nonregulated — 3 1 5 — 5 212 122 348 Total Customer Revenue 1,127 610 687 196 221 169 212 95 3,317 Other revenue 17 6 8 25 4 — 32 10 102 Total $ 1,144 $ 616 $ 695 $ 221 $ 225 $ 169 $ 244 $ 105 $ 3,419 For the Six-Month Period Ended June 30, 2020 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables BHE and Other (1) Total Customer Revenue: Regulated: Retail electric $ 2,188 $ 878 $ 1,167 $ — $ — $ — $ — $ — $ 4,233 Retail gas — 271 67 — — — — — 338 Wholesale 17 101 20 — — — — (2 ) 136 Transmission and distribution 46 33 45 424 — 333 — — 881 Interstate pipeline — — — — 621 — — (74 ) 547 Other 46 — 1 — — — — — 47 Total Regulated 2,297 1,283 1,300 424 621 333 — (76 ) 6,182 Nonregulated — 9 2 12 — 8 371 249 651 Total Customer Revenue 2,297 1,292 1,302 436 621 341 371 173 6,833 Other revenue 53 10 15 51 5 — 51 35 220 Total $ 2,350 $ 1,302 $ 1,317 $ 487 $ 626 $ 341 $ 422 $ 208 $ 7,053 For the Three-Month Period Ended June 30, 2019 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables BHE and Other (1) Total Customer Revenue: Regulated: Retail electric $ 1,107 $ 467 $ 658 $ — $ — $ — $ — $ — $ 2,232 Retail gas — 95 21 — — — — — 116 Wholesale 11 66 10 — — — — (1 ) 86 Transmission and distribution 25 15 24 209 — 168 — — 441 Interstate pipeline — — — — 212 — — (24 ) 188 Other — — — — — — — — — Total Regulated 1,143 643 713 209 212 168 — (25 ) 3,063 Nonregulated — 10 — 10 — 7 197 142 366 Total Customer Revenue 1,143 653 713 219 212 175 197 117 3,429 Other revenue 24 7 8 24 — — 52 23 138 Total $ 1,167 $ 660 $ 721 $ 243 $ 212 $ 175 $ 249 $ 140 $ 3,567 For the Six-Month Period Ended June 30, 2019 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables BHE and Other (1) Total Customer Revenue: Regulated: Retail electric $ 2,293 $ 910 $ 1,185 $ — $ — $ — $ — $ — $ 4,388 Retail gas — 355 58 — — — — — 413 Wholesale 39 176 28 — — — — (1 ) 242 Transmission and distribution 50 31 48 439 — 335 — — 903 Interstate pipeline — — — — 584 — — (61 ) 523 Other — — 1 — — — — — 1 Total Regulated 2,382 1,472 1,320 439 584 335 — (62 ) 6,470 Nonregulated — 16 — 18 — 8 323 281 646 Total Customer Revenue 2,382 1,488 1,320 457 584 343 323 219 7,116 Other revenue (2) 44 14 15 49 (1 ) — 93 62 276 Total $ 2,426 $ 1,502 $ 1,335 $ 506 $ 583 $ 343 $ 416 $ 281 $ 7,392 (1) The BHE and Other reportable segment represents amounts related principally to other entities, corporate functions and intersegment eliminations. (2) Includes net payments to counterparties for the financial settlement of certain derivative contracts at BHE Pipeline Group. Real Estate Services The following table summarizes the Company's real estate services Customer Revenue by line of business (in millions): HomeServices Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Customer Revenue: Brokerage $ 957 $ 1,204 $ 1,734 $ 1,915 Franchise 15 19 31 33 Total Customer Revenue 972 1,223 1,765 1,948 Other revenue 221 104 321 164 Total $ 1,193 $ 1,327 $ 2,086 $ 2,112 Remaining Performance Obligations The following table summarizes the Company's revenue it expects to recognize in future periods related to significant unsatisfied remaining performance obligations for fixed contracts with expected durations in excess of one year as of June 30, 2020 , by reportable segment (in millions): Performance obligations expected to be satisfied: Less than 12 months More than 12 months Total BHE Pipeline Group $ 884 $ 4,888 $ 5,772
Disaggregation of Revenue [Table Text Block]	Energy Products and Services The following table summarizes the Company's energy products and services revenue from contracts with customers ("Customer Revenue") by regulated energy and nonregulated energy, with further disaggregation of regulated energy by line of business, including a reconciliation to the Company's reportable segment information included in Note 13 (in millions): For the Three-Month Period Ended June 30, 2020 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables BHE and Other (1) Total Customer Revenue: Regulated: Retail electric $ 1,066 $ 468 $ 638 $ — $ — $ — $ — $ — $ 2,172 Retail gas — 84 20 — — — — — 104 Wholesale 17 37 6 — — — — (1 ) 59 Transmission and distribution 24 18 22 191 — 164 — — 419 Interstate pipeline — — — — 221 — — (26 ) 195 Other 20 — — — — — — — 20 Total Regulated 1,127 607 686 191 221 164 — (27 ) 2,969 Nonregulated — 3 1 5 — 5 212 122 348 Total Customer Revenue 1,127 610 687 196 221 169 212 95 3,317 Other revenue 17 6 8 25 4 — 32 10 102 Total $ 1,144 $ 616 $ 695 $ 221 $ 225 $ 169 $ 244 $ 105 $ 3,419 For the Six-Month Period Ended June 30, 2020 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables BHE and Other (1) Total Customer Revenue: Regulated: Retail electric $ 2,188 $ 878 $ 1,167 $ — $ — $ — $ — $ — $ 4,233 Retail gas — 271 67 — — — — — 338 Wholesale 17 101 20 — — — — (2 ) 136 Transmission and distribution 46 33 45 424 — 333 — — 881 Interstate pipeline — — — — 621 — — (74 ) 547 Other 46 — 1 — — — — — 47 Total Regulated 2,297 1,283 1,300 424 621 333 — (76 ) 6,182 Nonregulated — 9 2 12 — 8 371 249 651 Total Customer Revenue 2,297 1,292 1,302 436 621 341 371 173 6,833 Other revenue 53 10 15 51 5 — 51 35 220 Total $ 2,350 $ 1,302 $ 1,317 $ 487 $ 626 $ 341 $ 422 $ 208 $ 7,053 For the Three-Month Period Ended June 30, 2019 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables BHE and Other (1) Total Customer Revenue: Regulated: Retail electric $ 1,107 $ 467 $ 658 $ — $ — $ — $ — $ — $ 2,232 Retail gas — 95 21 — — — — — 116 Wholesale 11 66 10 — — — — (1 ) 86 Transmission and distribution 25 15 24 209 — 168 — — 441 Interstate pipeline — — — — 212 — — (24 ) 188 Other — — — — — — — — — Total Regulated 1,143 643 713 209 212 168 — (25 ) 3,063 Nonregulated — 10 — 10 — 7 197 142 366 Total Customer Revenue 1,143 653 713 219 212 175 197 117 3,429 Other revenue 24 7 8 24 — — 52 23 138 Total $ 1,167 $ 660 $ 721 $ 243 $ 212 $ 175 $ 249 $ 140 $ 3,567 For the Six-Month Period Ended June 30, 2019 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables BHE and Other (1) Total Customer Revenue: Regulated: Retail electric $ 2,293 $ 910 $ 1,185 $ — $ — $ — $ — $ — $ 4,388 Retail gas — 355 58 — — — — — 413 Wholesale 39 176 28 — — — — (1 ) 242 Transmission and distribution 50 31 48 439 — 335 — — 903 Interstate pipeline — — — — 584 — — (61 ) 523 Other — — 1 — — — — — 1 Total Regulated 2,382 1,472 1,320 439 584 335 — (62 ) 6,470 Nonregulated — 16 — 18 — 8 323 281 646 Total Customer Revenue 2,382 1,488 1,320 457 584 343 323 219 7,116 Other revenue (2) 44 14 15 49 (1 ) — 93 62 276 Total $ 2,426 $ 1,502 $ 1,335 $ 506 $ 583 $ 343 $ 416 $ 281 $ 7,392
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]	Remaining Performance Obligations The following table summarizes the Company's revenue it expects to recognize in future periods related to significant unsatisfied remaining performance obligations for fixed contracts with expected durations in excess of one year as of June 30, 2020 , by reportable segment (in millions):
HomeServices [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	The following table summarizes the Company's real estate services Customer Revenue by line of business (in millions): HomeServices Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Customer Revenue: Brokerage $ 957 $ 1,204 $ 1,734 $ 1,915 Franchise 15 19 31 33 Total Customer Revenue 972 1,223 1,765 1,948 Other revenue 221 104 321 164 Total $ 1,193 $ 1,327 $ 2,086 $ 2,112
PacifiCorp [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer [Text Block]	Revenue from Contracts with Customers The following table summarizes PacifiCorp's revenue from contracts with customers ("Customer Revenue") by customer class (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Customer Revenue: Retail: Residential $ 384 $ 349 $ 844 $ 838 Commercial 346 373 704 733 Industrial 268 289 545 581 Other retail 68 74 95 103 Total retail 1,066 1,085 2,188 2,255 Wholesale 17 11 17 39 Transmission 24 25 46 50 Other Customer Revenue 20 22 46 38 Total Customer Revenue 1,127 1,143 2,297 2,382 Other revenue 17 24 53 44 Total operating revenue $ 1,144 $ 1,167 $ 2,350 $ 2,426
Disaggregation of Revenue [Table Text Block]	The following table summarizes PacifiCorp's revenue from contracts with customers ("Customer Revenue") by customer class (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Customer Revenue: Retail: Residential $ 384 $ 349 $ 844 $ 838 Commercial 346 373 704 733 Industrial 268 289 545 581 Other retail 68 74 95 103 Total retail 1,066 1,085 2,188 2,255 Wholesale 17 11 17 39 Transmission 24 25 46 50 Other Customer Revenue 20 22 46 38 Total Customer Revenue 1,127 1,143 2,297 2,382 Other revenue 17 24 53 44 Total operating revenue $ 1,144 $ 1,167 $ 2,350 $ 2,426
Nevada Power Company [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer [Text Block]	Revenue from Contracts with Customers The following table summarizes Nevada Power's revenue from contracts with customers ("Customer Revenue") by customer class (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Customer Revenue: Retail: Residential $ 304 $ 266 $ 497 $ 466 Commercial 96 114 190 204 Industrial 83 112 154 182 Other 2 6 5 11 Total fully bundled 485 498 846 863 Distribution only service 6 8 13 15 Total retail 491 506 859 878 Wholesale, transmission and other 12 14 27 31 Total Customer Revenue 503 520 886 909 Other revenue 6 7 12 13 Total revenue $ 509 $ 527 $ 898 $ 922
Disaggregation of Revenue [Table Text Block]	The following table summarizes Nevada Power's revenue from contracts with customers ("Customer Revenue") by customer class (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Customer Revenue: Retail: Residential $ 304 $ 266 $ 497 $ 466 Commercial 96 114 190 204 Industrial 83 112 154 182 Other 2 6 5 11 Total fully bundled 485 498 846 863 Distribution only service 6 8 13 15 Total retail 491 506 859 878 Wholesale, transmission and other 12 14 27 31 Total Customer Revenue 503 520 886 909 Other revenue 6 7 12 13 Total revenue $ 509 $ 527 $ 898 $ 922
Sierra Pacific Power Company [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer [Text Block]	Revenue from Contracts with Customers The following table summarizes Sierra Pacific's revenue from contracts with customers ("Customer Revenue") by customer class, including a reconciliation to Sierra Pacific's reportable segment information included in Note 11 (in millions): Three-Month Periods Ended June 30, 2020 2019 Electric Natural Gas Total Electric Natural Gas Total Customer Revenue: Retail: Residential $ 63 $ 14 $ 77 $ 58 $ 14 $ 72 Commercial 56 4 60 54 5 59 Industrial 34 2 36 46 2 48 Other 1 — 1 1 — 1 Total fully bundled 154 20 174 159 21 180 Distribution only service 1 — 1 1 — 1 Total retail 155 20 175 160 21 181 Wholesale, transmission and other 9 — 9 11 — 11 Total Customer Revenue 164 20 184 171 21 192 Other revenue 1 — 1 1 1 2 Total revenue $ 165 $ 20 $ 185 $ 172 $ 22 $ 194 Six-Month Periods Ended June 30, 2020 2019 Electric Gas Total Electric Gas Total Customer Revenue: Retail: Residential $ 132 $ 44 $ 176 $ 126 $ 38 $ 164 Commercial 112 17 129 108 15 123 Industrial 75 6 81 85 5 90 Other 2 — 2 3 — 3 Total fully bundled 321 67 388 322 58 380 Distribution only service 2 — 2 2 — 2 Total retail 323 67 390 324 58 382 Wholesale, transmission and other 24 — 24 28 — 28 Total Customer Revenue 347 67 414 352 58 410 Other revenue 2 1 3 2 1 3 Total revenue $ 349 $ 68 $ 417 $ 354 $ 59 $ 413
Disaggregation of Revenue [Table Text Block]	The following table summarizes Sierra Pacific's revenue from contracts with customers ("Customer Revenue") by customer class, including a reconciliation to Sierra Pacific's reportable segment information included in Note 11 (in millions): Three-Month Periods Ended June 30, 2020 2019 Electric Natural Gas Total Electric Natural Gas Total Customer Revenue: Retail: Residential $ 63 $ 14 $ 77 $ 58 $ 14 $ 72 Commercial 56 4 60 54 5 59 Industrial 34 2 36 46 2 48 Other 1 — 1 1 — 1 Total fully bundled 154 20 174 159 21 180 Distribution only service 1 — 1 1 — 1 Total retail 155 20 175 160 21 181 Wholesale, transmission and other 9 — 9 11 — 11 Total Customer Revenue 164 20 184 171 21 192 Other revenue 1 — 1 1 1 2 Total revenue $ 165 $ 20 $ 185 $ 172 $ 22 $ 194 Six-Month Periods Ended June 30, 2020 2019 Electric Gas Total Electric Gas Total Customer Revenue: Retail: Residential $ 132 $ 44 $ 176 $ 126 $ 38 $ 164 Commercial 112 17 129 108 15 123 Industrial 75 6 81 85 5 90 Other 2 — 2 3 — 3 Total fully bundled 321 67 388 322 58 380 Distribution only service 2 — 2 2 — 2 Total retail 323 67 390 324 58 382 Wholesale, transmission and other 24 — 24 28 — 28 Total Customer Revenue 347 67 414 352 58 410 Other revenue 2 1 3 2 1 3 Total revenue $ 349 $ 68 $ 417 $ 354 $ 59 $ 413
MidAmerican Energy Company [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer [Text Block]	Revenue from Contracts with Customers The following table summarizes MidAmerican Energy's revenue from contracts with customers ("Customer Revenue") by line of business and customer class, including a reconciliation to MidAmerican Energy's reportable segment information included in Note 10 , (in millions): For the Three-Month Period Ended June 30, 2020 For the Six-Month Period Ended June 30, 2020 Electric Natural Gas Other Total Electric Natural Gas Other Total Customer Revenue: Retail: Residential $ 166 $ 59 $ — $ 225 $ 314 $ 187 $ — $ 501 Commercial 73 15 — 88 143 58 — 201 Industrial 197 3 — 200 360 7 — 367 Natural gas transportation services — 7 — 7 — 18 — 18 Other retail (1) 32 1 — 33 61 1 — 62 Total retail 468 85 — 553 878 271 — 1,149 Wholesale 28 9 — 37 70 31 — 101 Multi-value transmission projects 17 — — 17 33 — — 33 Other Customer Revenue — — — — — — 1 1 Total Customer Revenue 513 94 — 607 981 302 1 1,284 Other revenue 5 1 — 6 8 2 — 10 Total operating revenue $ 518 $ 95 $ — $ 613 $ 989 $ 304 $ 1 $ 1,294 For the Three-Month Period Ended June 30, 2019 For the Six-Month Period Ended June 30, 2019 Electric Natural Gas Other Total Electric Natural Gas Other Total Customer Revenue: Retail: Residential $ 148 $ 66 $ — $ 214 $ 319 $ 241 $ — $ 560 Commercial 79 19 — 98 154 85 — 239 Industrial 204 3 — 207 367 9 — 376 Natural gas transportation services — 8 — 8 — 20 — 20 Other retail (1) 35 (1 ) — 34 70 — — 70 Total retail 466 95 — 561 910 355 — 1,265 Wholesale 51 15 — 66 127 49 — 176 Multi-value transmission projects 14 — — 14 30 — — 30 Other Customer Revenue — — 10 10 — — 15 15 Total Customer Revenue 531 110 10 651 1,067 404 15 1,486 Other revenue 7 1 — 8 13 2 — 15 Total operating revenue $ 538 $ 111 $ 10 $ 659 $ 1,080 $ 406 $ 15 $ 1,501 (1) Other retail includes provisions for rate refunds, for which any actual refunds will be reflected in the applicable customer classes upon resolution of the related regulatory proceeding.
Disaggregation of Revenue [Table Text Block]	The following table summarizes MidAmerican Energy's revenue from contracts with customers ("Customer Revenue") by line of business and customer class, including a reconciliation to MidAmerican Energy's reportable segment information included in Note 10 , (in millions): For the Three-Month Period Ended June 30, 2020 For the Six-Month Period Ended June 30, 2020 Electric Natural Gas Other Total Electric Natural Gas Other Total Customer Revenue: Retail: Residential $ 166 $ 59 $ — $ 225 $ 314 $ 187 $ — $ 501 Commercial 73 15 — 88 143 58 — 201 Industrial 197 3 — 200 360 7 — 367 Natural gas transportation services — 7 — 7 — 18 — 18 Other retail (1) 32 1 — 33 61 1 — 62 Total retail 468 85 — 553 878 271 — 1,149 Wholesale 28 9 — 37 70 31 — 101 Multi-value transmission projects 17 — — 17 33 — — 33 Other Customer Revenue — — — — — — 1 1 Total Customer Revenue 513 94 — 607 981 302 1 1,284 Other revenue 5 1 — 6 8 2 — 10 Total operating revenue $ 518 $ 95 $ — $ 613 $ 989 $ 304 $ 1 $ 1,294 For the Three-Month Period Ended June 30, 2019 For the Six-Month Period Ended June 30, 2019 Electric Natural Gas Other Total Electric Natural Gas Other Total Customer Revenue: Retail: Residential $ 148 $ 66 $ — $ 214 $ 319 $ 241 $ — $ 560 Commercial 79 19 — 98 154 85 — 239 Industrial 204 3 — 207 367 9 — 376 Natural gas transportation services — 8 — 8 — 20 — 20 Other retail (1) 35 (1 ) — 34 70 — — 70 Total retail 466 95 — 561 910 355 — 1,265 Wholesale 51 15 — 66 127 49 — 176 Multi-value transmission projects 14 — — 14 30 — — 30 Other Customer Revenue — — 10 10 — — 15 15 Total Customer Revenue 531 110 10 651 1,067 404 15 1,486 Other revenue 7 1 — 8 13 2 — 15 Total operating revenue $ 538 $ 111 $ 10 $ 659 $ 1,080 $ 406 $ 15 $ 1,501

Components of Accumulated Oth_2

Components of Accumulated Other Comprehensive Loss, Net (Tables)	6 Months Ended
	Jun. 30, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Components of Accumulated Other Comprehensive Loss, Net	The following table shows the change in AOCI attributable to BHE shareholders by each component of OCI, net of applicable income tax (in millions): Unrecognized Foreign Unrealized AOCI Amounts on Currency Gains (Losses) Attributable Retirement Translation on Cash To BHE Benefits Adjustment Flow Hedges Shareholders, Net Balance, December 31, 2018 $ (358 ) $ (1,623 ) $ 36 $ (1,945 ) Other comprehensive (loss) income (14 ) 106 (35 ) 57 Balance, June 30, 2019 $ (372 ) $ (1,517 ) $ 1 $ (1,888 ) Balance, December 31, 2019 $ (417 ) $ (1,296 ) $ 7 $ (1,706 ) Other comprehensive income (loss) 44 (439 ) (24 ) (419 ) Balance, June 30, 2020 $ (373 ) $ (1,735 ) $ (17 ) $ (2,125 )

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2020
Segment Reporting Information [Line Items]
Schedule of Segment Reporting Information, by Segment	The Company's reportable segments with foreign operations include Northern Powergrid , whose business is principally in the United Kingdom, BHE Transmission , whose business includes operations in Canada, and BHE Renewables , whose business includes operations in the Philippines. Intersegment eliminations and adjustments, including the allocation of goodwill, have been made. Information related to the Company's reportable segments is shown below (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Operating revenue: PacifiCorp $ 1,144 $ 1,167 $ 2,350 $ 2,426 MidAmerican Funding 616 660 1,302 1,502 NV Energy 695 721 1,317 1,335 Northern Powergrid 221 243 487 506 BHE Pipeline Group 225 212 626 583 BHE Transmission 169 175 341 343 BHE Renewables 244 249 422 416 HomeServices 1,193 1,327 2,086 2,112 BHE and Other (1) 105 140 208 281 Total operating revenue $ 4,612 $ 4,894 $ 9,139 $ 9,504 Depreciation and amortization: PacifiCorp $ 210 $ 209 $ 462 $ 414 MidAmerican Funding 175 179 351 356 NV Energy 125 120 249 240 Northern Powergrid 63 63 126 126 BHE Pipeline Group 25 29 89 57 BHE Transmission 55 60 115 118 BHE Renewables 71 69 142 139 HomeServices 12 11 23 24 BHE and Other (1) — (1 ) — (2 ) Total depreciation and amortization $ 736 $ 739 $ 1,557 $ 1,472 Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Operating income: PacifiCorp $ 256 $ 268 $ 490 $ 552 MidAmerican Funding 110 94 212 210 NV Energy 161 150 240 234 Northern Powergrid 89 110 221 239 BHE Pipeline Group 92 68 341 311 BHE Transmission 81 77 157 153 BHE Renewables 84 97 101 115 HomeServices 77 117 97 96 BHE and Other (1) (14 ) (22 ) (4 ) (32 ) Total operating income 936 959 1,855 1,878 Interest expense (503 ) (476 ) (986 ) (953 ) Capitalized interest 19 17 36 33 Allowance for equity funds 38 38 72 70 Interest and dividend income 20 36 40 66 Gains (losses) on marketable securities, net 583 6 610 (62 ) Other, net 52 30 25 65 Total income before income tax benefit and equity (loss) income $ 1,145 $ 610 $ 1,652 $ 1,097 Interest expense: PacifiCorp $ 110 $ 102 $ 212 $ 198 MidAmerican Funding 78 74 159 149 NV Energy 57 56 115 118 Northern Powergrid 31 35 63 69 BHE Pipeline Group 15 12 29 24 BHE Transmission 35 39 73 78 BHE Renewables 42 44 84 88 HomeServices 3 7 8 14 BHE and Other (1) 132 107 243 215 Total interest expense $ 503 $ 476 $ 986 $ 953 Operating revenue by country: United States $ 4,224 $ 4,476 $ 8,313 $ 8,653 United Kingdom 221 242 487 505 Canada 167 175 338 343 Philippines and other — 1 1 3 Total operating revenue by country $ 4,612 $ 4,894 $ 9,139 $ 9,504 Income before income tax benefit and equity (loss) income by country: United States $ 1,027 $ 482 $ 1,381 $ 818 United Kingdom 59 76 168 179 Canada 46 39 86 79 Philippines and other 13 13 17 21 Total income before income tax benefit and equity (loss) income by country $ 1,145 $ 610 $ 1,652 $ 1,097 As of June 30, December 31, 2020 2019 Assets: PacifiCorp $ 26,128 $ 24,861 MidAmerican Funding 23,155 22,664 NV Energy 14,420 14,128 Northern Powergrid 8,083 8,385 BHE Pipeline Group 6,182 6,100 BHE Transmission 8,616 8,776 BHE Renewables 11,134 9,961 HomeServices 4,703 3,846 BHE and Other (1) 1,996 1,330 Total assets $ 104,417 $ 100,051 (1) The differences between the reportable segment amounts and the consolidated amounts, described as BHE and Other , relate principally to other entities, including MidAmerican Energy Services, LLC, corporate functions and intersegment eliminations. T
Schedule of Goodwill	e following table shows the change in the carrying amount of goodwill by reportable segment for the six-month period ended June 30, 2020 (in millions): BHE Pipeline Group PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Transmission BHE Renewables HomeServices Total December 31, 2019 $ 1,129 $ 2,102 $ 2,369 $ 978 $ 73 $ 1,520 $ 95 $ 1,456 $ 9,722 Foreign currency translation — — — (45 ) — (65 ) — — (110 ) June 30, 2020 $ 1,129 $ 2,102 $ 2,369 $ 933 $ 73 $ 1,455 $ 95 $ 1,456 $ 9,612
MidAmerican Energy Company [Member]
Segment Reporting Information [Line Items]
Schedule of Segment Reporting Information, by Segment	The following tables provide information on a reportable segment basis (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Operating revenue: Regulated electric $ 518 $ 538 $ 989 $ 1,080 Regulated natural gas 95 111 304 406 Other — 10 1 15 Total operating revenue $ 613 $ 659 $ 1,294 $ 1,501 Operating income: Regulated electric $ 101 $ 87 $ 160 $ 153 Regulated natural gas 7 5 46 53 Other — 2 — 3 Total operating income 108 94 206 209 Interest expense (74 ) (70 ) (150 ) (139 ) Allowance for borrowed funds 4 7 7 13 Allowance for equity funds 9 17 17 32 Other, net 21 10 16 30 Income before income tax benefit $ 68 $ 58 $ 96 $ 145 As of June 30, December 31, Assets: Regulated electric $ 19,661 $ 19,093 Regulated natural gas 1,386 1,468 Other 1 3 Total assets $ 21,048 $ 20,564
MidAmerican Funding, LLC and Subsidiaries [Domain]
Segment Reporting Information [Line Items]
Schedule of Segment Reporting Information, by Segment	The following tables provide information on a reportable segment basis (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Operating revenue: Regulated electric $ 518 $ 538 $ 989 $ 1,080 Regulated natural gas 95 111 304 406 Other 3 11 9 16 Total operating revenue $ 616 $ 660 $ 1,302 $ 1,502 Operating income: Regulated electric $ 101 $ 87 $ 160 $ 153 Regulated natural gas 7 5 46 53 Other 2 2 6 4 Total operating income 110 94 212 210 Interest expense (78 ) (74 ) (159 ) (149 ) Allowance for borrowed funds 4 7 7 13 Allowance for equity funds 9 17 17 32 Other, net 21 10 15 31 Income before income tax benefit $ 66 $ 54 $ 92 $ 137 As of June 30, December 31, Assets (1) : Regulated electric $ 20,852 $ 20,284 Regulated natural gas 1,465 1,547 Other 10 9 Total assets $ 22,327 $ 21,840 (1) Assets by reportable segment reflect the assignment of goodwill to applicable reporting units.
Sierra Pacific Power Company [Member]
Segment Reporting Information [Line Items]
Schedule of Segment Reporting Information, by Segment	The following tables provide information on a reportable segment basis (in millions): Three-Month Periods Six-Month Periods Ended June 30, Ended June 30, 2020 2019 2020 2019 Operating revenue: Regulated electric $ 165 $ 172 $ 349 $ 354 Regulated natural gas 20 22 68 59 Total operating revenue $ 185 $ 194 $ 417 $ 413 Operating income: Regulated electric $ 20 $ 23 $ 53 $ 52 Regulated natural gas 3 4 10 12 Total operating income 23 27 63 64 Interest expense (14 ) (12 ) (28 ) (24 ) Allowance for borrowed funds 1 1 1 1 Allowance for equity funds 1 1 2 2 Other, net 3 1 4 3 Income before income tax expense $ 14 $ 18 $ 42 $ 46 As of June 30, December 31, 2020 2019 Assets: Regulated electric $ 3,375 $ 3,319 Regulated natural gas 309 308 Other (1) 27 44 Total assets $ 3,711 $ 3,671 (1) Consists principally of cash and cash equivalents not included in either the regulated electric or regulated natural gas segments.

General (Details)

General (Details)	6 Months Ended
	Jun. 30, 2020OperatingSegmentsOwnedAndOperatedCompanies
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of reportable segments | OperatingSegments	8
Number of owned and operated utility companies in the United States	4
Number of states owned and operated utility companies serve customers	11
Number of owned and operated interstate natural gas pipeline companies in the United States	2
Number of owned and operated electricity distribution companies in Great Britain	2
Number of owned and operated electricity transmission companies in Canada	1
Number of owned and operated renewable energy businesses	1
Number of owned and operated residential real estate brokerage firms in the United States	1
Number of owned and operated residential real estate brokerage franchise networks in the United States	1

Business Combination Disclosu_2

Business Combination Disclosure Business Combination Disclosure (Details) - Natural Gas Transmission and Storage Business Acquisition [Member] - Forecast [Member] - Subsequent Event [Member] $ in Billions	Jul. 03, 2020USD ($)miBcf
Business Acquisition [Line Items]
Miles of natural gas transmission lines | mi	7,700
Natural gas transmission lines transportation per day capacity	20.8
Natural gas operated storage capacity	900
Natural gas company-owned working storage capacity	364
Liquefied natural gas storage capacity	14.6
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net | $	$ 9.7
Payments to Acquire Businesses, Gross | $	4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt | $	$ 5.7
Approval period, days following purchase agreement execution	75 days
Iroquois Gas Transmission System L.P. [Member]
Business Acquisition [Line Items]
Equity Method Investment, Ownership Percentage	50.00%
Dominion Energy Cove Point LNG, LP [Member]
Business Acquisition [Line Items]
Equity Method Investment, Ownership Percentage	25.00%
General Partnership Interest	100.00%
Dominion Energy Transmission, Inc. [Member]
Business Acquisition [Line Items]
Ownership Percentage Acquired	100.00%
Dominion Energy Carolina Gas Transmission, LLC [Member]
Business Acquisition [Line Items]
Ownership Percentage Acquired	100.00%
Dominion Energy Questar Pipeline [Member]
Business Acquisition [Line Items]
Ownership Percentage Acquired	100.00%

Property, Plant and Equipment_3

Property, Plant and Equipment, Net (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment in service, net	$ 69,326	$ 69,573
Construction in Progress, Gross	4,499	3,732
Property, plant and equipment, net	73,825	73,305
Regulated Operation [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	89,733	89,292
Accumulated depreciation and amortization	(26,921)	(26,353)
Property, plant and equipment in service, net	62,812	62,939
Construction in Progress, Gross	4,400	3,600
Regulated Operation [Member] | Utility generation, transmission and distribution systems
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 81,518	81,127
Regulated Operation [Member] | Utility generation, transmission and distribution systems | Minimum [Member]
Property, Plant and Equipment [Line Items]
Depreciable Life	5 years
Regulated Operation [Member] | Utility generation, transmission and distribution systems | Maximum [Member]
Property, Plant and Equipment [Line Items]
Depreciable Life	80 years
Regulated Operation [Member] | Interstate natural gas pipeline assets
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 8,215	8,165
Regulated Operation [Member] | Interstate natural gas pipeline assets | Minimum [Member]
Property, Plant and Equipment [Line Items]
Depreciable Life	3 years
Regulated Operation [Member] | Interstate natural gas pipeline assets | Maximum [Member]
Property, Plant and Equipment [Line Items]
Depreciable Life	80 years
Unregulated Operation [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 8,850	8,817
Accumulated depreciation and amortization	(2,336)	(2,183)
Property, plant and equipment in service, net	6,514	6,634
Unregulated Operation [Member] | Independent power plants
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 7,004	6,983
Unregulated Operation [Member] | Independent power plants | Minimum [Member]
Property, Plant and Equipment [Line Items]
Depreciable Life	5 years
Unregulated Operation [Member] | Independent power plants | Maximum [Member]
Property, Plant and Equipment [Line Items]
Depreciable Life	30 years
Unregulated Operation [Member] | Other assets
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 1,846	$ 1,834
Unregulated Operation [Member] | Other assets | Minimum [Member]
Property, Plant and Equipment [Line Items]
Depreciable Life	3 years
Unregulated Operation [Member] | Other assets | Maximum [Member]
Property, Plant and Equipment [Line Items]
Depreciable Life	30 years

Property, Plant and Equipment_4

Property, Plant and Equipment, Net - PacifiCorp (Details) - PacifiCorp [Member] - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Electric Property Plant And Equipment In Service Gross		$ 28,960	$ 28,763
Public utility accumulated depreciation and amortization		(9,863)	(9,803)
Public Utilities Property, Plant And Equipment In Service, Net		19,097	18,960
Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress		19,106	18,970
Public Utilities, Property, Plant and Equipment, Construction Work in Progress		2,447	2,003
Public Utilities, Property, Plant and Equipment, Net		$ 21,553	20,973
Minimum [Member]
Property, Plant and Equipment [Line Items]
Depreciable Life		5 years
Maximum [Member]
Property, Plant and Equipment [Line Items]
Depreciable Life		75 years
Other assets
Property, Plant and Equipment [Line Items]
Electric Property Plant And Equipment In Service Gross		$ 1,468	1,449
Electricity Generation Plant, Non-Nuclear [Member]
Property, Plant and Equipment [Line Items]
Electric Property Plant And Equipment In Service Gross		12,463	12,509
Electric Transmission [Member]
Property, Plant and Equipment [Line Items]
Electric Property Plant And Equipment In Service Gross		6,564	6,482
Electric Distribution [Member]
Property, Plant and Equipment [Line Items]
Electric Property Plant And Equipment In Service Gross		7,439	7,307
Other Intangible Assets [Member]
Property, Plant and Equipment [Line Items]
Electric Property Plant And Equipment In Service Gross	[1]	1,026	1,016
Unregulated Operation [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress		9	$ 10
BHE [Member]
Property, Plant and Equipment [Line Items]
Related Party Transaction, Amounts of Transaction		$ 147
[1]	(1)Computer software costs included in intangible plant are initially assigned a depreciable life of 5 to 10 years.

Property, Plant and Equipment_5

Property, Plant and Equipment, Net Property, Plant and Equipment, Net - MEC (Details) - MidAmerican Energy Company [Member] - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress	$ 17,656	$ 17,593
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	1,100	782
Property, plant and equipment, net	18,756	18,375
Regulated Operation [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Plant in Service, Excluding Construction Work In Progress	24,038	23,726
Public Utilities, Property, Plant and Equipment, Accumulated Depreciation	(6,388)	(6,139)
Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress	17,650	17,587
Unregulated Operation [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Accumulated Depreciation	(1)	(1)
Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress	6	6
Gross public utility property, plant and equipment in service	$ 7	7
Unregulated Operation [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Other Property Plant and Equipment, Useful Life	20 years
Unregulated Operation [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Other Property Plant and Equipment, Useful Life	50 years
Electric Operations [Member] | Regulated Operation [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	$ 15,800	15,687
Public Utilities, Property, Plant and Equipment, Transmission	2,208	2,124
Public Utilities, Property, Plant and Equipment, Distribution	$ 4,186	4,095
Electric Operations [Member] | Regulated Operation [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation, Useful Life	20 years
Public Utilities, Property, Plant and Equipment, Transmission, Useful Life	52 years
Public Utilities, Property, Plant and Equipment, Distribution, Useful Life	20 years
Electric Operations [Member] | Regulated Operation [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation, Useful Life	70 years
Public Utilities, Property, Plant and Equipment, Transmission, Useful Life	75 years
Public Utilities, Property, Plant and Equipment, Distribution, Useful Life	75 years
Natural Gas Processing Plant [Member] | Regulated Operation [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Distribution	$ 1,844	$ 1,820
Natural Gas Processing Plant [Member] | Regulated Operation [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Distribution, Useful Life	29 years
Natural Gas Processing Plant [Member] | Regulated Operation [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Distribution, Useful Life	75 years

Property, Plant and Equipment_6

Property, Plant and Equipment, Net Property, Plant and Equipment, Net - MidAmerican Funding (Details) - MidAmerican Funding, LLC and Subsidiaries [Domain] - Other assets - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 0	$ 3
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$ 0	$ (1)

Property, Plant and Equipment_7

Property, Plant and Equipment, Net Property, Plant and Equipment, Net - NPC (Details) - Nevada Power Company [Member] - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress	$ 6,493	$ 6,343
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	156	195
Property, plant and equipment, net	6,649	6,538
Regulated Operation [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	3,617	3,541
Public Utilities, Property, Plant and Equipment, Transmission	1,485	1,444
Public Utilities, Property, Plant and Equipment, Distribution	3,683	3,567
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	786	741
Public Utilities, Property, Plant and Equipment, Plant in Service, Excluding Construction Work In Progress	9,571	9,293
Public Utilities, Property, Plant and Equipment, Accumulated Depreciation	3,079	2,951
Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress	$ 6,492	6,342
Regulated Operation [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation, Useful Life	30 years
Public Utilities, Property, Plant and Equipment, Transmission, Useful Life	45 years
Public Utilities, Property, Plant and Equipment, Distribution, Useful Life	20 years
Public Utilities, Property, Plant and Equipment, Other Property Plant and Equipment, Useful Life	5 years
Regulated Operation [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation, Useful Life	55 years
Public Utilities, Property, Plant and Equipment, Transmission, Useful Life	70 years
Public Utilities, Property, Plant and Equipment, Distribution, Useful Life	65 years
Public Utilities, Property, Plant and Equipment, Other Property Plant and Equipment, Useful Life	65 years
Unregulated Operation [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress	$ 1	$ 1
Unregulated Operation [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Other Property Plant and Equipment, Useful Life	45 years
Unregulated Operation [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Other Property Plant and Equipment, Useful Life	45 years

Property, Plant and Equipment_8

Property, Plant and Equipment, Net Property, Plant and Equipment, Net - SPPC (Details) - Sierra Pacific Power Company [Member] - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress	$ 2,976	$ 2,962
Property, plant and equipment, net	3,099	3,075
Common Facilities [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	123	113
Property, plant and equipment, net	3,099	3,075
Regulated Operation [Member] | Electricity Generation Plant, Non-Nuclear [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	1,130	1,133
Public Utilities, Property, Plant and Equipment, Transmission	879	840
Public Utilities, Property, Plant and Equipment, Distribution	1,700	1,669
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	$ 184	178
Regulated Operation [Member] | Electricity Generation Plant, Non-Nuclear [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation, Useful Life	25 years
Public Utilities, Property, Plant and Equipment, Transmission, Useful Life	50 years
Public Utilities, Property, Plant and Equipment, Distribution, Useful Life	20 years
Public Utilities, Property, Plant and Equipment, Other Property Plant and Equipment, Useful Life	5 years
Regulated Operation [Member] | Electricity Generation Plant, Non-Nuclear [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation, Useful Life	60 years
Public Utilities, Property, Plant and Equipment, Transmission, Useful Life	100 years
Public Utilities, Property, Plant and Equipment, Distribution, Useful Life	100 years
Public Utilities, Property, Plant and Equipment, Other Property Plant and Equipment, Useful Life	70 years
Regulated Operation [Member] | Natural Gas Processing Plant [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Distribution	$ 422	417
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	$ 14	14
Regulated Operation [Member] | Natural Gas Processing Plant [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Distribution, Useful Life	35 years
Public Utilities, Property, Plant and Equipment, Other Property Plant and Equipment, Useful Life	5 years
Regulated Operation [Member] | Natural Gas Processing Plant [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Distribution, Useful Life	70 years
Public Utilities, Property, Plant and Equipment, Other Property Plant and Equipment, Useful Life	70 years
Regulated Operation [Member] | Common Facilities [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Common	$ 344	338
Public Utilities, Property, Plant and Equipment, Plant in Service, Excluding Construction Work In Progress	4,673	4,589
Public Utilities, Property, Plant and Equipment, Accumulated Depreciation	1,699	1,629
Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress	$ 2,974	2,960
Regulated Operation [Member] | Common Facilities [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Common, Useful Life	5 years
Regulated Operation [Member] | Common Facilities [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Common, Useful Life	70 years
Unregulated Operation [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress	$ 2	$ 2
Unregulated Operation [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Other Property Plant and Equipment, Useful Life	70 years
Unregulated Operation [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Other Property Plant and Equipment, Useful Life	70 years

Investments and Restricted Ca_3

Investments and Restricted Cash and Investments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Investments [Abstract]
Investments	$ 2,324		$ 2,324		$ 1,719
Equity Method Investments [Abstract]
Equity Method Investments	4,954		4,954		3,947
Restricted Cash and Investments [Abstract]
Restricted cash and investments	862		862		829
Investments, including equity method investments and restricted cash and investments	8,140		8,140		6,495
Investments, including equity method investments and restricted cash and investments, current	266		266		240
Investments, including equity method investments and restricted cash and investments, noncurrent	7,874		7,874		6,255
Gain on Sale of Investments	583	$ 6	610	$ (62)
Marketable Securities, Realized Gain (Loss)	(1)	(1)	1	(1)
Marketable Securities, Gain (Loss)	584	$ 7	609	$ (61)
Quad Cities Station nuclear decommissioning trust funds [Member]
Restricted Cash and Investments [Abstract]
Decommissioning fund investments, fair value	607		607		599
Other restricted cash and investments [Member]
Restricted Cash and Investments [Abstract]
Restricted cash and investments	255		255		230
Equity Method Investments, tax equity investments [Member]
Equity Method Investments [Abstract]
Equity Method Investments	4,183		4,183		3,130
ETT [Member]
Equity Method Investments [Abstract]
Equity Method Investments	580		580		555
Bridger Coal Company [Member]
Equity Method Investments [Abstract]
Equity Method Investments	83		83		81
Other equity method investments [Member]
Equity Method Investments [Abstract]
Equity Method Investments	108		108		181
BYD Company Limited common stock [Member]
Investments [Abstract]
Available-for-sale securities, equity securities	1,737		1,737		1,122
Rabbi trusts [Member]
Investments [Abstract]
Rabbi trusts, amount	396		396		410
Other investments [Member]
Investments [Abstract]
Other investments	$ 191		$ 191		$ 187

Regulatory Matters Regulatory M

Regulatory Matters Regulatory Matters - SPPC (Details) - Sierra Pacific Power Company [Member] - General Rate Case [Member] - Public Utilities Commission, Nevada [Member] - USD ($) $ in Millions	1 Months Ended
	Jun. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019
Schedule Of Regulatory Assets and Liabilities [Line Items]
Public Utilities, Interim Rate Increase (Decrease), Amount	$ 3			$ 5
Public Utilities, Requested Rate Increase (Decrease), Amount				$ 5
Public Utilities, Approved Rate Increase (Decrease), Amount	$ 2	$ 3	$ 5
Public Utilities, Revenue Sharing, Percent			50.00%
Public Utilities, Approved Return on Equity, Percentage			9.70%

Cash and Cash Equivalents and_4

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Supplemental Cash Flow Disclosure (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 1,815	$ 1,040
Restricted cash and cash equivalents	237	212
Restricted Cash and Cash Equivalents, Noncurrent	18	16
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 2,070	$ 1,268	$ 1,506	$ 883

Cash and Cash Equivalents and_5

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Supplemental Cash Flow Disclosures - MEC (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 1,815	$ 1,040
Restricted cash and cash equivalents	237	212
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	2,070	1,268	$ 1,506	$ 883
MidAmerican Energy Company [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	5	287
Restricted cash and cash equivalents	27	43
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 32	$ 330	$ 231	$ 56

Cash and Cash Equivalents and_6

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Supplemental Cash Flow Disclosures - LLC (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 1,815	$ 1,040
Restricted cash and cash equivalents	237	212
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	2,070	1,268	$ 1,506	$ 883
MidAmerican Funding, LLC and Subsidiaries [Domain]
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	8	288
Restricted cash and cash equivalents	27	43
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 35	$ 331	$ 232	$ 57

Cash and Cash Equivalents and_7

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Supplemental Cash Flow Disclosure - Pacificorp (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 1,815	$ 1,040
Restricted cash and cash equivalents	237	212
Restricted Cash and Cash Equivalents, Noncurrent	18	16
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	2,070	1,268	$ 1,506	$ 883
PacifiCorp [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	711	30
Restricted cash and cash equivalents	5	4
Restricted Cash and Cash Equivalents, Noncurrent	3	2
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 719	$ 36	$ 554	$ 92

Cash and Cash Equivalents and_8

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Supplemental Cash Flow Disclosure - NPC (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 1,815	$ 1,040
Restricted cash and cash equivalents	237	212
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	2,070	1,268	$ 1,506	$ 883
Nevada Power Company [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	16	15
Restricted cash and cash equivalents	9	10
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 25	$ 25	$ 90	$ 121

Cash and Cash Equivalents and_9

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Supplemental Cash Flow Disclosure - SPPC (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 1,815	$ 1,040
Restricted cash and cash equivalents	237	212
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	2,070	1,268	$ 1,506	$ 883
Sierra Pacific Power Company [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	12	27
Restricted cash and cash equivalents	5	5
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 17	$ 32	$ 33	$ 76

Recent Financing Transactions R

Recent Financing Transactions Recent Financing Transactions - Long-Term Debt (Details) £ in Millions, $ in Millions	Jun. 30, 2020GBP (£)	Apr. 30, 2020USD ($)	Mar. 31, 2020USD ($)	Jan. 31, 2020USD ($)	Jan. 01, 2020USD ($)
Berkshire Hathaway Energy [Member] | Senior Notes, 4.05%, due 2025 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount			$ 1,250
Debt Instrument, Interest Rate, Stated Percentage			4.05%
Berkshire Hathaway Energy [Member] | Senior Notes, 3.70%, due 2030 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount			$ 1,100
Debt Instrument, Interest Rate, Stated Percentage			3.70%
Berkshire Hathaway Energy [Member] | Senior Notes, 4.25%, due 2050 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount			$ 900
Debt Instrument, Interest Rate, Stated Percentage			4.25%
Subsidiary Debt [Member] | Northern Powergrid Holdings [Member] | Green Bonds, 1.875%, due 2062 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount | £	£ 300
Debt Instrument, Interest Rate, Stated Percentage	1.875%
Subsidiary Debt [Member] | PacifiCorp [Member] | First Mortgage Bonds, 2.70%, due 2030 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 400
Debt Instrument, Interest Rate, Stated Percentage		2.70%
Subsidiary Debt [Member] | PacifiCorp [Member] | First Mortgage Bonds, 3.30%, due 2051 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 600
Debt Instrument, Interest Rate, Stated Percentage		3.30%
Subsidiary Debt [Member] | BHE Renewables [Member] | Pinyon Pines I and II Term Loan, due 2034 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				$ 382
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	1.80%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	3.23%
Subsidiary Debt [Member] | BHE Renewables [Member] | Pinyon Pines I and II Term Loan, due 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Repurchased Face Amount				284
Subsidiary Debt [Member] | NVE Holdings [Member] | Nevada Power Company [Member] | Mortgage Securities, 2.400%, Series DD due 2030 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				$ 425	$ 425
Debt Instrument, Interest Rate, Stated Percentage				2.40%	2.40%
Subsidiary Debt [Member] | NVE Holdings [Member] | Nevada Power Company [Member] | Mortgage Securities, 3.125%, Series EE due 2050 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				$ 300	$ 300
Debt Instrument, Interest Rate, Stated Percentage				3.125%	3.125%
Subsidiary Debt [Member] | NVE Holdings [Member] | Nevada Power Company [Member] | Mortgage Securities, 2.750%, Series BB due 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				$ 575	$ 575
Debt Instrument, Interest Rate, Stated Percentage				2.75%	2.75%

Recent Financing Transactions_2

Recent Financing Transactions Recent Financings Transactions - Credit Facilities (Details) - Line of Credit [Member] $ in Millions, $ in Millions	May 31, 2020USD ($)	Apr. 30, 2020CAD ($)
AltaLink, L.P. [Member] | Revolving credit facility, C$100 million, expiring April 2021 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 100
Debt To Capitalization Ratio		0.75
AltaLink Investments, L.P. [Member] | Revolving term credit facility, C$200 million, expiring April 2021 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 200
Debt To Capitalization Ratio		0.80
MidAmerican Energy Company [Member] | Unsecured credit facility, $400 million, expiring August 2020 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 400
Debt To Capitalization Ratio	0.65
MidAmerican Energy Company [Member] | Unsecured credit facility, $600 million, expiring May 2021 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 600

Recent Financing Transactions_3

Recent Financing Transactions Recent Financing Transactions - PAC (Details) - PacifiCorp [Member] - Subsidiary Debt [Member] $ in Millions	Apr. 30, 2020USD ($)
First Mortgage Bonds, 2.70%, due 2030 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 400
Debt Instrument, Interest Rate, Stated Percentage	2.70%
First Mortgage Bonds, 3.30%, due 2051 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 600
Debt Instrument, Interest Rate, Stated Percentage	3.30%

Recent Financing Transactions_4

Recent Financing Transactions Recent Financing Transactions - MEC (Details) - MidAmerican Energy Company [Member] - Line of Credit [Member] $ in Millions	May 31, 2020USD ($)
Unsecured credit facility, $400 million, expiring August 2020 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 400
Debt To Capitalization Ratio	0.65
Unsecured credit facility, $600 million, expiring May 2021 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 600

Recent Financing Transactions_5

Recent Financing Transactions Recent Financing Transactions - NPC (Details) - NVE Holdings [Member] - Nevada Power Company [Member] - Subsidiary Debt [Member] - USD ($) $ in Millions	May 01, 2020	Jan. 31, 2020	Jan. 01, 2020
NPC Pollution Control Refunding Revenue Bonds, 1.875%, Series 2017A, due 2032 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 40
Debt Instrument, Interest Rate, Stated Percentage	1.875%
NPC Pollution Control Refunding Revenue Bonds, 1.65%, Series 2017B, due 2039 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 13
Debt Instrument, Interest Rate, Stated Percentage	1.65%
NPC Pollution Control Refunding Revenue Bonds, 1.65%, Series 2017, Due 2036 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 40
Debt Instrument, Interest Rate, Stated Percentage	1.65%
Mortgage Securities, 2.400%, Series DD due 2030 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 425	$ 425
Debt Instrument, Interest Rate, Stated Percentage		2.40%	2.40%
Mortgage Securities, 3.125%, Series EE due 2050 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 300	$ 300
Debt Instrument, Interest Rate, Stated Percentage		3.125%	3.125%
Mortgage Securities, 2.750%, Series BB due 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 575	$ 575
Debt Instrument, Interest Rate, Stated Percentage		2.75%	2.75%

Recent Financing Transactions_6

Recent Financing Transactions Recent Financing Transactions - SPPC (Details) - NVE Holdings [Member] - Sierra Pacific Power Company [Member] - Subsidiary Debt [Member] $ in Millions	Apr. 01, 2020USD ($)
Water facilities refunding revenue bonds, series 2016C, due 2036 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 30
Gas facilities refunding revenue bonds, series 2016A, due 2031 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	59
Pollution Control Refunding Revenue Bonds, Series 2016A, due 2029 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 20

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory income tax rate	21.00%	21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	(20.00%)	(29.00%)	(28.00%)	(29.00%)
State income tax, net of federal income tax benefit	2.00%	(0.00%)	1.00%	(8.00%)
Income tax effect of foreign income	(2.00%)	(1.00%)	(2.00%)	(2.00%)
Effects of ratemaking	(1.00%)	(2.00%)	(3.00%)	(2.00%)
Other, net	(1.00%)	(1.00%)	(1.00%)	(0.00%)
Effective income tax rate	(1.00%)	(12.00%)	(12.00%)	(20.00%)
Production Tax Credit Carryforwards [Abstract]
Years eligible for federal renewable energy production tax credit			10 years
Related Party Tax Expense [Abstract]
Long-term income tax receivable	$ 530		$ 530		$ 530
Parent Company [Member]
Related Party Tax Expense [Abstract]
Related party transaction, cash paid for income taxes, net			$ 100	$ 0

Income Taxes - PAC (Details)

Income Taxes - PAC (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory income tax rate	21.00%	21.00%	21.00%	21.00%
State income tax, net of federal income tax benefit	(2.00%)	0.00%	(1.00%)	8.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	(20.00%)	(29.00%)	(28.00%)	(29.00%)
Effects of ratemaking	(1.00%)	(2.00%)	(3.00%)	(2.00%)
Other, net	1.00%	1.00%	1.00%	0.00%
Effective income tax rate	1.00%	12.00%	12.00%	20.00%
Production Tax Credit Carryforwards [Abstract]
Years eligible for federal renewable energy production tax credit			10 years
PacifiCorp [Member]
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory income tax rate	21.00%	21.00%	21.00%	21.00%
State income tax, net of federal income tax benefit	3.00%	3.00%	3.00%	3.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	(9.00%)	(4.00%)	(10.00%)	(4.00%)
Effects of ratemaking	(1.00%)	(1.00%)	(1.00%)	(1.00%)
Effective Income Tax Rate Reconciliation, Amortization of excess deferred income taxes	(1.00%)	0.00%	(10.00%)	0.00%
Other, net	1.00%	(1.00%)	0.00%	0.00%
Effective income tax rate	14.00%	18.00%	3.00%	19.00%
Effective income tax reconciliation, Amortization of excess deferred income taxes, Dollar			$ 30
Production Tax Credit Carryforwards [Abstract]
Years eligible for federal renewable energy production tax credit			10 years
BHE [Member] | PacifiCorp [Member]
Related Party Income Tax Receivable (Payable) [Abstract]
Related party transaction, cash paid for income taxes, net			$ 42	$ 11

Income Taxes - MEC (Details)

Income Taxes - MEC (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory income tax rate	21.00%	21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	(20.00%)	(29.00%)	(28.00%)	(29.00%)
State income tax, net of federal income tax benefit	2.00%	(0.00%)	1.00%	(8.00%)
Effects of ratemaking	(1.00%)	(2.00%)	(3.00%)	(2.00%)
Other, net	(1.00%)	(1.00%)	(1.00%)	(0.00%)
Effective income tax rate	1.00%	12.00%	12.00%	20.00%
Production Tax Credit Carryforwards [Abstract]
Years eligible for federal renewable energy production tax credit			10 years
MidAmerican Energy Company [Member]
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory income tax rate	21.00%	21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	(186.00%)	(158.00%)	(257.00%)	(131.00%)
State income tax, net of federal income tax benefit	(35.00%)	(22.00%)	(33.00%)	(21.00%)
Effects of ratemaking	(9.00%)	(10.00%)	(7.00%)	(9.00%)
Other, net	2.00%	(0.00%)	1.00%	(1.00%)
Effective income tax rate	(207.00%)	(169.00%)	(275.00%)	(141.00%)
Production Tax Credit Carryforwards [Abstract]
Years eligible for federal renewable energy production tax credit			10 years
MidAmerican Energy Company [Member] | Berkshire Hathaway Energy [Member]
Related Party Income Tax Receivable (Payable) [Abstract]
Related party transaction, cash (paid) received for income taxes, net			$ (19)	$ (9)

Income Taxes - MidAmerican Fund

Income Taxes - MidAmerican Funding (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory income tax rate	21.00%	21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	(20.00%)	(29.00%)	(28.00%)	(29.00%)
State income tax, net of federal income tax benefit	2.00%	(0.00%)	1.00%	(8.00%)
Effects of ratemaking	(1.00%)	(2.00%)	(3.00%)	(2.00%)
Other, net	(1.00%)	(1.00%)	(1.00%)	(0.00%)
Effective income tax rate	1.00%	12.00%	12.00%	20.00%
Production Tax Credit Carryforwards [Abstract]
Years eligible for federal renewable energy production tax credit			10 years
MidAmerican Funding, LLC and Subsidiaries [Domain]
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory income tax rate	21.00%	21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	(192.00%)	(171.00%)	(269.00%)	(139.00%)
State income tax, net of federal income tax benefit	(37.00%)	(25.00%)	(35.00%)	(23.00%)
Effects of ratemaking	(9.00%)	(11.00%)	(7.00%)	(9.00%)
Other, net	2.00%	3.00%	1.00%	(0.00%)
Effective income tax rate	(215.00%)	(183.00%)	(289.00%)	(150.00%)
Production Tax Credit Carryforwards [Abstract]
Years eligible for federal renewable energy production tax credit			10 years
MidAmerican Funding, LLC and Subsidiaries [Domain] | Berkshire Hathaway Energy [Member]
Related Party Income Tax Receivable (Payable) [Abstract]
Related party transaction, cash (paid) received for income taxes, net			$ (19)	$ (8)

Income Taxes Income Taxes - SPP

Income Taxes Income Taxes - SPPC (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Federal statutory income tax rate	21.00%	21.00%	21.00%	21.00%
Effects of ratemaking	(1.00%)	(2.00%)	(3.00%)	(2.00%)
Other, net	1.00%	1.00%	1.00%	0.00%
Effective income tax rate	1.00%	12.00%	12.00%	20.00%
Sierra Pacific Power Company [Member]
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Federal statutory income tax rate	21.00%	21.00%	21.00%	21.00%
Effects of ratemaking	14.00%	(1.00%)	10.00%	(1.00%)
Other, net	0.00%	0.00%	(1.00%)	0.00%
Effective income tax rate	7.00%	22.00%	10.00%	22.00%

Employee Benefit Plans (Details

Employee Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 3	$ 3	$ 4	$ 5
Interest cost	4	8	10	14
Expected return on plan assets	(7)	(10)	(16)	(20)
Net amortization	(3)	(1)	(4)	(3)
Net periodic benefit cost	(3)	0	(6)	(4)
UNITED STATES | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	4	4	7	8
Interest cost	23	28	46	55
Expected return on plan assets	(35)	(39)	(70)	(77)
Net amortization	8	7	17	16
Net periodic benefit cost	0	0	0	2
UNITED KINGDOM | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	4	4	8	8
Interest cost	10	13	20	26
Expected return on plan assets	(25)	(25)	(50)	(50)
Net amortization	11	9	21	18
Net periodic benefit cost	$ 0	$ 1	$ (1)	$ 2

Employee Benefit Plans - Employ

Employee Benefit Plans - Employer Contributions (Details) - 6 months ended Jun. 30, 2020 £ in Millions, $ in Millions	USD ($)	GBP (£)	GBP (£)
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	$ 1
Employer contributions	0
UNITED STATES | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	13
Employer contributions	6
UNITED KINGDOM | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year | £			£ 43
Employer contributions	$ 27	£ 21

Employee Benefit Plans Employee

Employee Benefit Plans Employee Benefit Plans - PacifiCorp (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 3	$ 3	$ 4	$ 5
Interest cost	4	8	10	14
Expected return on plan assets	(7)	(10)	(16)	(20)
Net amortization	(3)	(1)	(4)	(3)
Net periodic benefit cost	(3)	0	(6)	(4)
PacifiCorp [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	1	1	1
Interest cost	2	3	5	6
Expected return on plan assets	(3)	(5)	(7)	(10)
Net amortization	0	0	0	0
Net periodic benefit cost	0	(1)	(1)	(3)
UNITED STATES | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	4	4	7	8
Interest cost	23	28	46	55
Expected return on plan assets	(35)	(39)	(70)	(77)
Net amortization	8	7	17	16
Net periodic benefit cost	0	0	0	2
UNITED STATES | PacifiCorp [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0	0
Interest cost	9	11	18	22
Expected return on plan assets	(14)	(16)	(28)	(33)
Net amortization	4	3	9	6
Net periodic benefit cost	$ (1)	$ (2)	$ (1)	$ (5)

Employee Benefit Plans Employ_2

Employee Benefit Plans Employee Benefit Plans - PacifiCorp - Employer Contributions (Details) $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	$ 1
Employer contributions	0
PacifiCorp [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	0
Employer contributions	0
UNITED STATES | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	13
Employer contributions	6
UNITED STATES | PacifiCorp [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	4
Employer contributions	$ 2

Employee Benefit Plans - MEC (D

Employee Benefit Plans - MEC (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Pension Plan [Member] | UNITED STATES
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 4	$ 4	$ 7	$ 8
Interest cost	23	28	46	55
Expected return on plan assets	(35)	(39)	(70)	(77)
Net amortization	8	7	17	16
Net periodic benefit cost	0	0	0	2
Pension Plan [Member] | UNITED STATES | MidAmerican Energy Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	1	2	3
Interest cost	6	8	12	15
Expected return on plan assets	(10)	(11)	(20)	(21)
Net amortization	1	0	1	0
Net periodic benefit cost	(2)	(2)	(5)	(3)
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	3	3	4	5
Interest cost	4	8	10	14
Expected return on plan assets	(7)	(10)	(16)	(20)
Net amortization	(3)	(1)	(4)	(3)
Net periodic benefit cost	(3)	0	(6)	(4)
Other Postretirement Benefits Plan [Member] | MidAmerican Energy Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	2	2	3
Interest cost	1	3	3	5
Expected return on plan assets	(3)	(3)	(6)	(6)
Net amortization	(2)	(1)	(3)	(2)
Net periodic benefit cost	$ (3)	$ 1	$ (4)	$ 0

Employee Benefit Plans Employ_3

Employee Benefit Plans Employee Benefit Plans - MEC - Employer Contributions (Details) $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	$ 1
Employer contributions	0
MidAmerican Energy Company [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	1
Employer contributions	0
UNITED STATES | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	13
Employer contributions	6
UNITED STATES | MidAmerican Energy Company [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	7
Employer contributions	$ 3

Employee Benefit Plans - NPC -

Employee Benefit Plans - NPC - Amounts Payable (Details) - Nevada Power Company [Member] - UNITED STATES - NV Energy, Inc. [Member] - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Other Noncurrent Liabilities [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Liability, Defined Benefit Plan, Noncurrent	$ 18	$ 18
Other Noncurrent Liabilities [Member] | Other Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Liability, Defined Benefit Plan, Noncurrent	9	9
Other Noncurrent Liabilities [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Liability, Defined Benefit Plan, Noncurrent	2	2
Other Current Liabilities [Member] | Other Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Liability, Defined Benefit Plan, Current	$ 1	$ 1

Employee Benefit Plans - SPPC -

Employee Benefit Plans - SPPC - Amounts Payable (Details) - Sierra Pacific Power Company [Member] - UNITED STATES - NV Energy, Inc. [Member] - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Other Noncurrent Liabilities [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Liability, Defined Benefit Plan, Noncurrent	$ 3	$ 4
Other Noncurrent Liabilities [Member] | Other Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Liability, Defined Benefit Plan, Noncurrent	7	8
Other Noncurrent Liabilities [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Liability, Defined Benefit Plan, Noncurrent	7	7
Other Current Liabilities [Member] | Other Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Liability, Defined Benefit Plan, Current	$ 1	$ 1

Risk Management and Hedging A_3

Risk Management and Hedging Activities - PacifiCorp - Balance Sheet Location (Details) - PacifiCorp [Member] - Commodity derivative [Member] - USD ($) $ in Millions	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Derivative, fair value, net	$ (68)		$ (63)
Cash collateral, net receivable, offset against derivative positions	40		47
Derivative assets (liabilities), at fair value, net	(28)		(16)
Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative, fair value, net	5		12
Cash collateral, net receivable, offset against derivative positions	0		0
Derivative assets (liabilities), at fair value, net	5		12
Other Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative, fair value, net	7		2
Cash collateral, net receivable, offset against derivative positions	0		0
Derivative assets (liabilities), at fair value, net	7		2
Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative, fair value, net	(38)		(27)
Cash collateral, net receivable, offset against derivative positions	19		20
Derivative assets (liabilities), at fair value, net	(19)		(7)
Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative, fair value, net	(42)		(50)
Cash collateral, net receivable, offset against derivative positions	21		27
Derivative assets (liabilities), at fair value, net	(21)		(23)
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement	22		21
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(90)		(84)
Derivative, fair value, net	(68)		(63)
Net Regulatory Asset (Liability), Unrealized Loss (Gain) On Derivative Contracts	68	$ 84	62	$ 101	$ 78	$ 96
Not Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement	9		15
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(4)		(3)
Derivative, fair value, net	5		12
Not Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement	7		2
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0		0
Derivative, fair value, net	7		2
Not Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement	6		4
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(44)		(31)
Derivative, fair value, net	(38)		(27)
Not Designated as Hedging Instrument [Member] | Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement	0		0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(42)		(50)
Derivative, fair value, net	$ (42)		$ (50)

Risk Management and Hedging A_4

Risk Management and Hedging Activities - PacifiCorp - Not Designated as Hedging Contracts (Details) - PacifiCorp [Member] - Not Designated as Hedging Instrument [Member] - Commodity derivative [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Regulatory Assets (Liabilities), Net, Unrealized Loss (Gain), Net, on Derivative Instruments [Line Items]
Beginning balance	$ 84	$ 78	$ 62	$ 96
Changes in fair value recognized in net regulatory assets	(6)	26	28	(28)
Net (losses) gains reclassified to operating revenue	5	6	13	(16)
Net Gains (Losses) Reclassified To Cost Of Domestic Regulated Electric	(15)	(9)	(35)	49
Ending balance	$ 68	$ 101	$ 68	$ 101

Risk Management and Hedging A_5

Risk Management and Hedging Activities - PacifiCorp - Derivative Contract Volumes (Details) - PacifiCorp [Member] - Commodity derivative [Member] MWh in Millions, Dth in Millions	Jun. 30, 2020DthMWh	Dec. 31, 2019DthMWh
Electricity sales, net
Notional Amounts of Outstanding Derivative Positions [Line Items]
Derivative, Nonmonetary Notional Amount | MWh	1	2
Natural gas purchases
Notional Amounts of Outstanding Derivative Positions [Line Items]
Derivative, Nonmonetary Notional Amount | Dth	116	129

Risk Management and Hedging A_6

Risk Management and Hedging Activities - PacifiCorp - Collateral and Contingent Features (Details) - PacifiCorp [Member] - Commodity derivative [Member] - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Derivative, net liability position, aggregate fair value	$ 84	$ 80
Collateral already posted, aggregate fair value	40	47
Additional collateral, aggregate fair value	$ 33	$ 27

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	$ (27)		$ (27)			$ (24)
Assets, fair value disclosure	5,723		5,723			3,897
Derivative liability, fair value, gross asset and right to reclaim cash, offset	94		94			103
Derivative liabilities	(171)		(171)			(76)
Cash collateral, net receivable, offset against derivative positions	67		67			79
Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	3,809		3,809			2,649
Derivative liabilities	(7)		(7)			(6)
Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	1,757		1,757			1,150
Derivative liabilities	(196)		(196)			(162)
Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	184		184			122
Derivative liabilities	(62)		(62)			(11)
Mortgage Loans on Real Estate [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgages Held-for-sale, Fair Value Disclosure	1,617		1,617			1,039
Mortgage Loans on Real Estate [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgages Held-for-sale, Fair Value Disclosure	0		0			0
Mortgage Loans on Real Estate [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgages Held-for-sale, Fair Value Disclosure	1,617		1,617			1,039
Mortgage Loans on Real Estate [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgages Held-for-sale, Fair Value Disclosure	0		0			0
Money market mutual funds [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	1,357		1,357			824
Money market mutual funds [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	1,357		1,357			824
Money market mutual funds [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	0		0			0
Money market mutual funds [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	0		0			0
United States government obligations [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	176		176			189
United States government obligations [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	176		176			189
United States government obligations [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	0		0			0
United States government obligations [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	0		0			0
International government obligations [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	4		4			4
International government obligations [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	0		0			0
International government obligations [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	4		4			4
International government obligations [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	0		0			0
Corporate obligations [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	73		73			58
Corporate obligations [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	0		0			0
Corporate obligations [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	73		73			58
Corporate obligations [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	0		0			0
Municipal obligations [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	3		3			1
Municipal obligations [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	0		0			0
Municipal obligations [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	3		3			1
Municipal obligations [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	0		0			0
US Government-sponsored Enterprises Debt Securities [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	5		5			1
US Government-sponsored Enterprises Debt Securities [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	0		0			0
US Government-sponsored Enterprises Debt Securities [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	5		5			1
US Government-sponsored Enterprises Debt Securities [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	0		0			0
United States companies [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	336		336			336
United States companies [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	336		336			336
United States companies [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	0		0			0
United States companies [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	0		0			0
International companies [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	1,745		1,745			1,131
International companies [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	1,745		1,745			1,131
International companies [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	0		0			0
International companies [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	0		0			0
Investment funds [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	194		194			169
Investment funds [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	194		194			169
Investment funds [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	0		0			0
Investment funds [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	0		0			0
Commodity derivative [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(27)		(27)			(24)
Derivative assets	134		134			129
Derivative liability, fair value, gross asset and right to reclaim cash, offset	94		94			103
Derivative liabilities	(106)		(106)			(55)
Commodity derivative [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement	1		1			0
Derivative liability, fair value, gross liability including not subject to master netting arrangement	(2)		(2)			(4)
Commodity derivative [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement	54		54			45
Derivative liability, fair value, gross liability including not subject to master netting arrangement	(136)		(136)			(143)
Commodity derivative [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement	106		106			108
Derivative liability, fair value, gross liability including not subject to master netting arrangement	(62)		(62)			(11)
Interest Rate Contract [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	79		79			16
Derivative liabilities	(65)		(65)			(21)
Interest Rate Contract [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement	0		0			0
Derivative liability, fair value, gross liability including not subject to master netting arrangement	(5)		(5)			(2)
Interest Rate Contract [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement	1		1			2
Derivative liability, fair value, gross liability including not subject to master netting arrangement	(60)		(60)			(19)
Interest Rate Contract [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement	78		78			14
Derivative liability, fair value, gross liability including not subject to master netting arrangement	0		0			0
Commodity derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset (Liability), Net, Value	44	$ 86	44	$ 86	$ 52	97	$ 86	$ 99
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings	1	(8)	4	(5)
Fair Value, Measurements with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included In Regulatory Assets and Liabilities, Net	16	12	56	23
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	1	3	3	4
Fair Value, Measurements With Unobservable Inputs Reconciliation, Recurring Basis, Assets and Liability, Net, Settlements	(8)	(2)	(4)	(2)
Interest Rate Lock Commitments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset (Liability), Net, Value	78	23	78	23	$ 45	$ 14	$ 18	$ 10
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings	(264)	(94)	(336)	(147)
Fair Value, Measurements with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included In Regulatory Assets and Liabilities, Net	0	0	0	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	0	0	0	0
Fair Value, Measurements With Unobservable Inputs Reconciliation, Recurring Basis, Assets and Liability, Net, Settlements	$ 231	$ 89	$ 272	$ 134

Fair Value Measurements - Level

Fair Value Measurements - Level 3 (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Commodity derivative [Member]
Fair Value, Assets (Liabilities), Net, Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 52	$ 86	$ 97	$ 99
Changes included in earnings	(1)	8	(4)	5
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)		1		1
Changes in fair value recognized in net regulatory assets	(16)	(12)	(56)	(23)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	1	3	3	4
Settlements	8	2	4	2
Ending balance	44	86	44	86
Interest Rate Lock Commitments [Member]
Fair Value, Assets (Liabilities), Net, Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	45	18	14	10
Changes included in earnings	264	94	336	147
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)		0		0
Changes in fair value recognized in net regulatory assets	0	0	0	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	0	0	0	0
Settlements	(231)	(89)	(272)	(134)
Ending balance	$ 78	$ 23	$ 78	$ 23

Fair Value Measurements - Debt

Fair Value Measurements - Debt (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 42,905	$ 39,353
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 52,847	$ 46,004

Fair Value Measurements - Pacif

Fair Value Measurements - PacifiCorp (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	$ (27)	$ (24)
Assets, fair value disclosure	5,723	3,897
Derivative liability, fair value, gross asset and right to reclaim cash, offset	94	103
Derivative Liability	(171)	(76)
Cash collateral, net receivable, offset against derivative positions	67	79
Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	3,809	2,649
Derivative Liability	(7)	(6)
Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	1,757	1,150
Derivative Liability	(196)	(162)
Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	184	122
Derivative Liability	(62)	(11)
Commodity derivative [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(27)	(24)
Derivative assets	134	129
Derivative liability, fair value, gross asset and right to reclaim cash, offset	94	103
Derivative Liability	(106)	(55)
Commodity derivative [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement	1	0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(2)	(4)
Commodity derivative [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement	54	45
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(136)	(143)
Commodity derivative [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement	106	108
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(62)	(11)
Money market mutual funds [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	1,357	824
Money market mutual funds [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	1,357	824
Money market mutual funds [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	0	0
Money market mutual funds [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	0	0
Investment funds [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	194	169
Investment funds [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	194	169
Investment funds [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	0	0
Investment funds [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	0	0
PacifiCorp [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	488	62
PacifiCorp [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	476	48
PacifiCorp [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	22	21
PacifiCorp [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0	0
PacifiCorp [Member] | Commodity derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash collateral, net receivable, offset against derivative positions	40	47
PacifiCorp [Member] | Commodity derivative [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(10)	(7)
Derivative assets	12	14
Derivative liability, fair value, gross asset and right to reclaim cash, offset	50	54
Derivative Liability	(40)	(30)
Cash collateral, net receivable, offset against derivative positions	40	47
PacifiCorp [Member] | Commodity derivative [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement	0	0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0	0
PacifiCorp [Member] | Commodity derivative [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement	22	21
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(90)	(84)
PacifiCorp [Member] | Commodity derivative [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement	0	0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0	0
PacifiCorp [Member] | Money market mutual funds [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	450	23
PacifiCorp [Member] | Money market mutual funds [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	450	23
PacifiCorp [Member] | Money market mutual funds [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	0	0
PacifiCorp [Member] | Money market mutual funds [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	0	0
PacifiCorp [Member] | Investment funds [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	26	25
PacifiCorp [Member] | Investment funds [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	26	25
PacifiCorp [Member] | Investment funds [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	0	0
PacifiCorp [Member] | Investment funds [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	$ 0	$ 0

Fair Value Measurements - Pac_2

Fair Value Measurements - PacifiCorp - Debt (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 42,905	$ 39,353
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	52,847	46,004
PacifiCorp [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	8,648	7,658
PacifiCorp [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 10,870	$ 9,280

Fair Value Measurements - MEC (

Fair Value Measurements - MEC (Details) - Recurring [Member] - USD ($) $ in Millions		Jun. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset		$ (27)	$ (24)
Assets, fair value disclosure		5,723	3,897
Derivative liability, fair value, gross asset and right to reclaim cash, offset		94	103
Cash collateral, net receivable, offset against derivative positions		67	79
Money market mutual funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		1,357	824
United States government obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		176	189
International government obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		4	4
Corporate obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		73	58
Municipal obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		3	1
US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		5	1
United States companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		336	336
International companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		1,745	1,131
Investment funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		194	169
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		3,809	2,649
Level 1 [Member] | Money market mutual funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		1,357	824
Level 1 [Member] | United States government obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		176	189
Level 1 [Member] | International government obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
Level 1 [Member] | Corporate obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
Level 1 [Member] | Municipal obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
Level 1 [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
Level 1 [Member] | United States companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		336	336
Level 1 [Member] | International companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		1,745	1,131
Level 1 [Member] | Investment funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		194	169
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		1,757	1,150
Level 2 [Member] | Money market mutual funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		0	0
Level 2 [Member] | United States government obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
Level 2 [Member] | International government obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		4	4
Level 2 [Member] | Corporate obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		73	58
Level 2 [Member] | Municipal obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		3	1
Level 2 [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		5	1
Level 2 [Member] | United States companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		0	0
Level 2 [Member] | International companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		0	0
Level 2 [Member] | Investment funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		0	0
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		184	122
Level 3 [Member] | Money market mutual funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		0	0
Level 3 [Member] | United States government obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
Level 3 [Member] | International government obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
Level 3 [Member] | Corporate obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
Level 3 [Member] | Municipal obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
Level 3 [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
Level 3 [Member] | United States companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		0	0
Level 3 [Member] | International companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		0	0
Level 3 [Member] | Investment funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		0	0
Commodity derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset		(27)	(24)
Derivative liability, fair value, gross asset and right to reclaim cash, offset		94	103
Commodity derivative [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement		1	0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		(2)	(4)
Commodity derivative [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement		54	45
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		(136)	(143)
Commodity derivative [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement		106	108
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		(62)	(11)
MidAmerican Energy Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		642	889
Cash collateral, net receivable, offset against derivative positions		0	1
MidAmerican Energy Company [Member] | Money market mutual funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	[1]	12	274
MidAmerican Energy Company [Member] | United States government obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		176	189
MidAmerican Energy Company [Member] | International government obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		4	4
MidAmerican Energy Company [Member] | Corporate obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		73	58
MidAmerican Energy Company [Member] | Municipal obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		3	1
MidAmerican Energy Company [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		5	1
MidAmerican Energy Company [Member] | United States companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		336	336
MidAmerican Energy Company [Member] | International companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		8	9
MidAmerican Energy Company [Member] | Investment funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		20	15
MidAmerican Energy Company [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		553	823
MidAmerican Energy Company [Member] | Level 1 [Member] | Money market mutual funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	[1]	12	274
MidAmerican Energy Company [Member] | Level 1 [Member] | United States government obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		176	189
MidAmerican Energy Company [Member] | Level 1 [Member] | International government obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
MidAmerican Energy Company [Member] | Level 1 [Member] | Corporate obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
MidAmerican Energy Company [Member] | Level 1 [Member] | Municipal obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
MidAmerican Energy Company [Member] | Level 1 [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
MidAmerican Energy Company [Member] | Level 1 [Member] | United States companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		336	336
MidAmerican Energy Company [Member] | Level 1 [Member] | International companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		8	9
MidAmerican Energy Company [Member] | Level 1 [Member] | Investment funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		20	15
MidAmerican Energy Company [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		88	66
MidAmerican Energy Company [Member] | Level 2 [Member] | Money market mutual funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	[1]	0	0
MidAmerican Energy Company [Member] | Level 2 [Member] | United States government obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
MidAmerican Energy Company [Member] | Level 2 [Member] | International government obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		4	4
MidAmerican Energy Company [Member] | Level 2 [Member] | Corporate obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		73	58
MidAmerican Energy Company [Member] | Level 2 [Member] | Municipal obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		3	1
MidAmerican Energy Company [Member] | Level 2 [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		5	1
MidAmerican Energy Company [Member] | Level 2 [Member] | United States companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		0	0
MidAmerican Energy Company [Member] | Level 2 [Member] | International companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		0	0
MidAmerican Energy Company [Member] | Level 2 [Member] | Investment funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		0
MidAmerican Energy Company [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		4	1
MidAmerican Energy Company [Member] | Level 3 [Member] | Money market mutual funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	[1]	0	0
MidAmerican Energy Company [Member] | Level 3 [Member] | United States government obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
MidAmerican Energy Company [Member] | Level 3 [Member] | International government obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
MidAmerican Energy Company [Member] | Level 3 [Member] | Corporate obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
MidAmerican Energy Company [Member] | Level 3 [Member] | Municipal obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
MidAmerican Energy Company [Member] | Level 3 [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		0	0
MidAmerican Energy Company [Member] | Level 3 [Member] | United States companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		0	0
MidAmerican Energy Company [Member] | Level 3 [Member] | International companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		0	0
MidAmerican Energy Company [Member] | Level 3 [Member] | Investment funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		0
MidAmerican Energy Company [Member] | Commodity derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement		5	2
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	[2]	(3)	(1)
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		(5)	(7)
Derivative liability, fair value, gross asset and right to reclaim cash, offset	[2]	3	2
MidAmerican Energy Company [Member] | Commodity derivative [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement		1	0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		0	0
MidAmerican Energy Company [Member] | Commodity derivative [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement		3	2
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		(6)	(9)
MidAmerican Energy Company [Member] | Commodity derivative [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value, gross asset including not subject to master netting arrangement		4	1
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		$ (2)	$ 0
[1]	Amounts are included in cash and cash equivalents and investments and restricted investments on the Balance Sheets. The fair value of these money market mutual funds approximates cost.
[2]	Represents netting under master netting arrangements and a net cash collateral receivable of $- million and $1 million as of June 30, 2020 and December 31, 2019, respectively.

Fair Value Measurements - MEC -

Fair Value Measurements - MEC - Debt (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 42,905	$ 39,353
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	52,847	46,004
MidAmerican Energy Company [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	7,209	7,208
Long-term debt, fair value		$ 8,283
MidAmerican Energy Company [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 9,019

Fair Value Measurements - MidAm

Fair Value Measurements - MidAmerican Funding - Debt (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 42,905	$ 39,353
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	52,847	46,004
MidAmerican Funding, LLC and Subsidiaries [Domain]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	7,449	7,448
Long-term debt, fair value		$ 8,599
MidAmerican Funding, LLC and Subsidiaries [Domain] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 9,357

Fair Value Measurements - NPC (

Fair Value Measurements - NPC (Details) - Recurring [Member] - USD ($) $ in Millions		Jun. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		$ 5,723	$ 3,897
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		3,809	2,649
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		1,757	1,150
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		184	122
Commodity derivative [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		(2)	(4)
Commodity derivative [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		(136)	(143)
Commodity derivative [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		(62)	(11)
Nevada Power Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		10	12
Nevada Power Company [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		10	12
Nevada Power Company [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		0	0
Nevada Power Company [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		0	0
Nevada Power Company [Member] | Commodity derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		(44)	(8)
Nevada Power Company [Member] | Commodity derivative [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		0	0
Nevada Power Company [Member] | Commodity derivative [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		0	0
Nevada Power Company [Member] | Commodity derivative [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		(44)	(8)
Nevada Power Company [Member] | Money market mutual funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	[1]	8	10
Nevada Power Company [Member] | Money market mutual funds [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	[1]	8	10
Nevada Power Company [Member] | Money market mutual funds [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	[1]	0	0
Nevada Power Company [Member] | Money market mutual funds [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	[1]	0	0
Nevada Power Company [Member] | Investment funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		2	2
Nevada Power Company [Member] | Investment funds [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		2	2
Nevada Power Company [Member] | Investment funds [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0	0
Nevada Power Company [Member] | Investment funds [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		$ 0	$ 0
[1]	Amounts are included in cash and cash equivalents on the Consolidated Balance Sheets. The fair value of these money market mutual funds approximates cost.

Fair Value Measurements - NPC -

Fair Value Measurements - NPC - Level 3 (Details) - Nevada Power Company [Member] - Commodity [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Fair Value, Assets (Liabilities), Net, Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	$ (38)	$ (5)	$ (8)	$ 3
Fair Value, Measurements with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included In Regulatory Assets and Liabilities, Net	13	8	44	17
Fair Value, Measurements With Unobservable Inputs Reconciliation, Recurring Basis, Assets and Liability, Net, Settlements	(7)	(2)	(8)	(3)
Ending balance	$ (44)	$ (11)	$ (44)	$ (11)

Fair Value Measurements - NPC_2

Fair Value Measurements - NPC - Debt (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 42,905	$ 39,353
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	52,847	46,004
Nevada Power Company [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	2,495	2,351
Nevada Power Company [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 3,187	$ 2,848

Fair Value Measurements Fair Va

Fair Value Measurements Fair Value Measurements - SPPC (Details) - Recurring [Member] - USD ($) $ in Millions	Jun. 30, 2020		Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	$ 5,723		$ 3,897
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	3,809		2,649
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	1,757		1,150
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	184		122
Commodity derivative [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(2)		(4)
Commodity derivative [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(136)		(143)
Commodity derivative [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(62)		(11)
Sierra Pacific Power Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	10
Sierra Pacific Power Company [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	10
Sierra Pacific Power Company [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0
Sierra Pacific Power Company [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0
Sierra Pacific Power Company [Member] | Commodity derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(12)		(1)
Sierra Pacific Power Company [Member] | Commodity derivative [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0		0
Sierra Pacific Power Company [Member] | Commodity derivative [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0		0
Sierra Pacific Power Company [Member] | Commodity derivative [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(12)		(1)
Sierra Pacific Power Company [Member] | Money market mutual funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	9	[1]	25	[2]
Sierra Pacific Power Company [Member] | Money market mutual funds [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	9	[1]	25	[2]
Sierra Pacific Power Company [Member] | Money market mutual funds [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	0	[1]	0	[2]
Sierra Pacific Power Company [Member] | Money market mutual funds [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	0	[1]	$ 0	[2]
Sierra Pacific Power Company [Member] | Investment funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	1
Sierra Pacific Power Company [Member] | Investment funds [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	1
Sierra Pacific Power Company [Member] | Investment funds [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	0
Sierra Pacific Power Company [Member] | Investment funds [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	$ 0
[1]	Amounts are included in cash and cash equivalents on the Consolidated Balance Sheets. The fair value of these money market mutual funds approximates cost.
[2]	(1)Amounts are included in cash and cash equivalents on the Balance Sheets. The fair value of these money market mutual funds approximates cost.

Fair Value Measurements - SPPC

Fair Value Measurements - SPPC - Debt (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 42,905	$ 39,353
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	52,847	46,004
Sierra Pacific Power Company [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	1,135	1,135
Sierra Pacific Power Company [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 1,324	$ 1,258

Commitments and Contingencies -

Commitments and Contingencies - Commitments (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Equity Method Investments	$ 4,954	$ 3,947
Property, plant and equipment, net	73,825	$ 73,305
PacifiCorp [Member] | Klamath Hydroelectric System [Member]
Property, Plant and Equipment [Abstract]
Dam removal cost limit	200
PacifiCorp [Member] | Klamath Hydroelectric System [Member] | CALIFORNIA
Property, Plant and Equipment [Abstract]
Dam removal cost limit	16
Additional dam removal costs, California bond measure	250
Capital Addition Purchase Commitments [Member] | MidAmerican Energy Company [Member]
ContractualObligationFiscalYearMaturityScheduleTable [Line Items]
Purchase Obligation	269
Maintenance, service and other contracts [Member] | MidAmerican Energy Company [Member]
ContractualObligationFiscalYearMaturityScheduleTable [Line Items]
Purchase Obligation	$ 72
Counterparty Bankruptcy [Member] | Topaz [Member]
ContractualObligationFiscalYearMaturityScheduleTable [Line Items]
Entity Legal Form	1
Property, Plant and Equipment [Abstract]
Revenue, Performance Obligation, Description of Payment Terms	1
Counterparty Bankruptcy [Member] | Agua Caliente [Member]
ContractualObligationFiscalYearMaturityScheduleTable [Line Items]
Equity Method Investment, Ownership Percentage	49.00%
Property, Plant and Equipment [Abstract]
Revenue, Performance Obligation, Description of Payment Terms	1
Easements [Member] | MidAmerican Energy Company [Member]
ContractualObligationFiscalYearMaturityScheduleTable [Line Items]
Purchase Obligation	$ 98

Commitments and Contingencies C

Commitments and Contingencies Commitments and Contingencies - PacifiCorp - Hydroelectric (Details) - PacifiCorp [Member] - Klamath Hydroelectric System [Member] $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)
Hydroelectric [Line Items]
Dam removal cost limit	$ 200
CALIFORNIA
Hydroelectric [Line Items]
Additional dam removal costs, California bond measure	250
Dam removal cost limit	$ 16

Commitments and Contingencies_2

Commitments and Contingencies Commitments and Contingencies - MEC- Commitments (Details) - MidAmerican Energy Company [Member] $ in Millions	Jun. 30, 2020USD ($)
Capital Addition Purchase Commitments [Member]
ContractualObligationFiscalYearMaturityScheduleTable [Line Items]
Purchase Obligation	$ 269
Maintenance, service and other contracts [Member]
ContractualObligationFiscalYearMaturityScheduleTable [Line Items]
Purchase Obligation	72
Easements [Member]
ContractualObligationFiscalYearMaturityScheduleTable [Line Items]
Purchase Obligation	$ 98

Commitments and Contingencies_3

Commitments and Contingencies Commitments and Contingencies - MEC - Transmission Rates (Details) - MidAmerican Energy Company [Member] - Electric Transmission [Member] $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)
Loss Contingencies [Line Items]
Public Utilities, Approved Return on Equity Adder, Percentage	0.50%
Unfavorable Regulatory Action [Member]
Loss Contingencies [Line Items]
Accrued liability for estimated transmission billings refunds	$ 12
Prior to September 2016 [Member]
Loss Contingencies [Line Items]
Public Utilities, Approved Return on Equity, Percentage	12.38%
November 2013 to February 2015 [Member]
Loss Contingencies [Line Items]
Public Utilities, Approved Return on Equity, Percentage	10.32%
Public Utilities, Intervenor Proposed Return On Equity, Percentage	9.15%
February 2015 through May 2016 [Member]
Loss Contingencies [Line Items]
Public Utilities, Intervenor Proposed Return On Equity, Percentage	8.67%
Nov 2019 Order For Nov 2013 to Feb 2015 and Sept 2016 Forward [Member]
Loss Contingencies [Line Items]
Public Utilities, Approved Return on Equity, Percentage	9.88%
Public Utilities, Approved Return on Equity Plus Adder, Percentage	10.38%
May 2020 Order For Nov 2013 to Feb 2015 and Sept 2016 Forward [Member]
Loss Contingencies [Line Items]
Public Utilities, Approved Return on Equity, Percentage	10.02%
Public Utilities, Approved Return on Equity Plus Adder, Percentage	10.52%

Revenue from Contracts with C_3

Revenue from Contracts with Customers Revenue from Contracts with Customers (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2020		Jun. 30, 2019		Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3,317		$ 3,429		$ 6,833	$ 7,116
Operating revenue	4,612		4,894		9,139	9,504
Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	102		138		220	276
Electricity and natural gas [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	3,419		3,567		7,053	7,392
PacifiCorp [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,127		1,143		2,297	2,382
Operating revenue	1,144		1,167		2,350	2,426
PacifiCorp [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	17		24		53	44
MidAmerican Funding [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	610		653		1,292	1,488
Operating revenue	616		660		1,302	1,502
MidAmerican Funding [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	6		7		10	14
NV Energy, Inc. [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	687		713		1,302	1,320
Operating revenue	695		721		1,317	1,335
NV Energy, Inc. [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	8		8		15	15
Northern Powergrid Holdings [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	196		219		436	457
Operating revenue	221		243		487	506
Northern Powergrid Holdings [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	25		24		51	49
BHE Pipeline Group [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	221		212		621	584
Operating revenue	225		212		626	583
BHE Pipeline Group [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	4		0		5	(1)	[1]
BHE Transmission [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	169		175		341	343
Operating revenue	169		175		341	343
BHE Transmission [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	0		0		0	0
BHE Renewables [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	212		197		371	323
Operating revenue	244		249		422	416
BHE Renewables [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	32		52		51	93
Berkshire Hathaway Energy And Other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	95	[2]	117	[2]	173	219	[2]
Operating revenue	105	[2]	140	[2]	208	281	[2]
Berkshire Hathaway Energy And Other [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	10	[2]	23	[2]	35	62	[2]
Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,969		3,063		6,182	6,470
Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,172		2,232		4,233	4,388
Regulated Operation [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	104		116		338	413
Regulated Operation [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	59		86		136	242
Regulated Operation [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	419		441		881	903
Regulated Operation [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	195		188		547	523
Regulated Operation [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	20		0		47	1
Regulated Operation [Member] | PacifiCorp [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,127		1,143		2,297	2,382
Regulated Operation [Member] | PacifiCorp [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,066		1,107		2,188	2,293
Regulated Operation [Member] | PacifiCorp [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | PacifiCorp [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	17		11		17	39
Regulated Operation [Member] | PacifiCorp [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	24		25		46	50
Regulated Operation [Member] | PacifiCorp [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | PacifiCorp [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	20		0		46	0
Regulated Operation [Member] | MidAmerican Funding [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	607		643		1,283	1,472
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	468		467		878	910
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	84		95		271	355
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	37		66		101	176
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	18		15		33	31
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | MidAmerican Funding [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | NV Energy, Inc. [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	686		713		1,300	1,320
Regulated Operation [Member] | NV Energy, Inc. [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	638		658		1,167	1,185
Regulated Operation [Member] | NV Energy, Inc. [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	20		21		67	58
Regulated Operation [Member] | NV Energy, Inc. [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	6		10		20	28
Regulated Operation [Member] | NV Energy, Inc. [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	22		24		45	48
Regulated Operation [Member] | NV Energy, Inc. [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | NV Energy, Inc. [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		1	1
Regulated Operation [Member] | Northern Powergrid Holdings [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	191		209		424	439
Regulated Operation [Member] | Northern Powergrid Holdings [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | Northern Powergrid Holdings [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | Northern Powergrid Holdings [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | Northern Powergrid Holdings [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	191		209		424	439
Regulated Operation [Member] | Northern Powergrid Holdings [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | Northern Powergrid Holdings [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | BHE Pipeline Group [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	221		212		621	584
Regulated Operation [Member] | BHE Pipeline Group [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | BHE Pipeline Group [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | BHE Pipeline Group [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | BHE Pipeline Group [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | BHE Pipeline Group [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	221		212		621	584
Regulated Operation [Member] | BHE Pipeline Group [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | BHE Transmission [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	164		168		333	335
Regulated Operation [Member] | BHE Transmission [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | BHE Transmission [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | BHE Transmission [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | BHE Transmission [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	164		168		333	335
Regulated Operation [Member] | BHE Transmission [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | BHE Transmission [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | BHE Renewables [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | BHE Renewables [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | BHE Renewables [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | BHE Renewables [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | BHE Renewables [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | BHE Renewables [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | BHE Renewables [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(27)	[2]	(25)	[2]	(76)	(62)	[2]
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	[2]	0	[2]	0	0	[2]
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	[2]	0	[2]	0	0	[2]
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(1)	[2]	(1)	[2]	(2)	(1)	[2]
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	[2]	0	[2]	0	0	[2]
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(26)	[2]	(24)	[2]	(74)	(61)	[2]
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	[2]	0	[2]	0	0	[2]
Unregulated Operation [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	348		366		651	646
Unregulated Operation [Member] | PacifiCorp [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Unregulated Operation [Member] | MidAmerican Funding [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	3		10		9	16
Unregulated Operation [Member] | NV Energy, Inc. [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1		0		2	0
Unregulated Operation [Member] | Northern Powergrid Holdings [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	5		10		12	18
Unregulated Operation [Member] | BHE Pipeline Group [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		0		0	0
Unregulated Operation [Member] | BHE Transmission [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	5		7		8	8
Unregulated Operation [Member] | BHE Renewables [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	212		197		371	323
Unregulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	122	[2]	142	[2]	249	281	[2]
PacifiCorp [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1,144		1,167		2,350	2,426
PacifiCorp [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	17		24		53	44
PacifiCorp [Member] | Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,127		1,143		2,297	2,382
PacifiCorp [Member] | Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,066		1,085		2,188	2,255
PacifiCorp [Member] | Regulated Operation [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	17		11		17	39
PacifiCorp [Member] | Regulated Operation [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	24		25		46	50
PacifiCorp [Member] | Regulated Operation [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 20		$ 22		$ 46	$ 38
[1]	(2)
[2]	(1)The BHE and Other reportable segment represents amounts related principally to other entities, corporate functions and intersegment eliminations.

Revenue from Contracts with C_4

Revenue from Contracts with Customers Revenue from Contracts with Customers - Real Estate Services (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3,317	$ 3,429	$ 6,833	$ 7,116
Operating revenue	4,612	4,894	9,139	9,504
Residential real estate brokerage and mortgage businesses [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1,193	1,327	2,086	2,112
Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	102	138	220	276
HomeServices [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1,193	1,327	2,086	2,112
HomeServices [Member] | Residential real estate brokerage [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	957	1,204	1,734	1,915
HomeServices [Member] | Residential real estate brokerage and mortgage businesses [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	972	1,223	1,765	1,948
Operating revenue	1,193	1,327	2,086	2,112
HomeServices [Member] | Real estate franchise [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	15	19	31	33
HomeServices [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	$ 221	$ 104	$ 321	$ 164

Revenue from Contracts with C_5

Revenue from Contracts with Customers Revenue from Contracts with Customers - Remaining Performance Obligation (Details) $ in Millions	Jun. 30, 2020USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-07-01
Revenue from Contract with Customer [Abstract]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01
Revenue from Contract with Customer [Abstract]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
BHE Pipeline Group [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 884
BHE Pipeline Group [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 5,772

Revenue from Contracts with C_6

Revenue from Contracts with Customers Revenue from Contracts with Customers - PAC - Customer Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3,317	$ 3,429	$ 6,833	$ 7,116
Operating revenue	4,612	4,894	9,139	9,504
Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	102	138	220	276
Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,969	3,063	6,182	6,470
Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,172	2,232	4,233	4,388
Regulated Operation [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	59	86	136	242
Regulated Operation [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	419	441	881	903
Regulated Operation [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	20	0	47	1
PacifiCorp [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1,144	1,167	2,350	2,426
PacifiCorp [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	17	24	53	44
PacifiCorp [Member] | Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,127	1,143	2,297	2,382
PacifiCorp [Member] | Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,066	1,085	2,188	2,255
PacifiCorp [Member] | Regulated Operation [Member] | Regulated retail electric [Member] | Residential [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	384	349	844	838
PacifiCorp [Member] | Regulated Operation [Member] | Regulated retail electric [Member] | Commercial [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	346	373	704	733
PacifiCorp [Member] | Regulated Operation [Member] | Regulated retail electric [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	268	289	545	581
PacifiCorp [Member] | Regulated Operation [Member] | Regulated retail electric [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	68	74	95	103
PacifiCorp [Member] | Regulated Operation [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	17	11	17	39
PacifiCorp [Member] | Regulated Operation [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	24	25	46	50
PacifiCorp [Member] | Regulated Operation [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 20	$ 22	$ 46	$ 38

Revenue from Contracts with C_7

Revenue from Contracts with Customers Revenue from Contracts with Customers - MEC (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2020		Jun. 30, 2019		Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3,317		$ 3,429		$ 6,833	$ 7,116
Operating revenue	4,612		4,894		9,139	9,504
Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	102		138		220	276
Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,969		3,063		6,182	6,470
Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,172		2,232		4,233	4,388
Regulated Operation [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	104		116		338	413
Regulated Operation [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	59		86		136	242
Regulated Operation [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	20		0		47	1
MidAmerican Energy Company [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	607		651		1,284	1,486
Operating revenue	613		659		1,294	1,501
MidAmerican Energy Company [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	6		8		10	15
MidAmerican Energy Company [Member] | Regulated electric
Disaggregation of Revenue [Line Items]
Operating revenue	518		538		989	1,080
MidAmerican Energy Company [Member] | Regulated natural gas
Disaggregation of Revenue [Line Items]
Operating revenue	95		111		304	406
MidAmerican Energy Company [Member] | Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	0		10		1	15
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated retail [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	553		561		1,149	1,265
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated retail [Member] | Residential [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	225		214		501	560
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated retail [Member] | Commercial [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	88		98		201	239
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated retail [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	200		207		367	376
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated retail [Member] | Natural gas distribution, transportation-only services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	7		8		18	20
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated retail [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	33	[1]	34	[1]	62	70	[1]
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	37		66		101	176
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Electricity Transmission [Member] | Multi value transmission projects [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	17		14		33	30
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated electric
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	513		531		981	1,067
Operating revenue	518		538		989	1,080
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated electric | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	468		466		878	910
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated electric | Regulated retail electric [Member] | Residential [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	166		148		314	319
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated electric | Regulated retail electric [Member] | Commercial [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	73		79		143	154
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated electric | Regulated retail electric [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	197		204		360	367
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated electric | Regulated retail electric [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	32	[1]	35	[1]	61	70	[1]
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated electric | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	28		51		70	127
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated electric | Electricity Transmission [Member] | Multi value transmission projects [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	17		14		33	30
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated electric | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	5		7		8	13
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated natural gas
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	94		110		302	404
Operating revenue	95		111		304	406
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated natural gas | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	85		95		271	355
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated natural gas | Regulated retail gas [Member] | Residential [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	59		66		187	241
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated natural gas | Regulated retail gas [Member] | Commercial [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	15		19		58	85
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated natural gas | Regulated retail gas [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	3		3		7	9
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated natural gas | Regulated retail gas [Member] | Natural gas distribution, transportation-only services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	7		8		18	20
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated natural gas | Regulated retail gas [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1	[1]	(1)	[1]	1	0	[1]
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated natural gas | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	9		15		31	49
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated natural gas | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1		1		2	2
MidAmerican Energy Company [Member] | Unregulated Operation [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		10		1	15
MidAmerican Energy Company [Member] | Unregulated Operation [Member] | Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		10		1	15
Operating revenue	0		10		1	15
MidAmerican Energy Company [Member] | Unregulated Operation [Member] | Corporate and Other [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0		10		1	15
MidAmerican Energy Company [Member] | Unregulated Operation [Member] | Corporate and Other [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	$ 0		$ 0		$ 0	$ 0
[1]	Other retail includes provisions for rate refunds, for which any actual refunds will be reflected in the applicable customer classes upon resolution of the related regulatory proceeding.

Revenue from Contracts with C_8

Revenue from Contracts with Customers Revenue from Contracts with Customers - LLC - Customer Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3,317	$ 3,429	$ 6,833	$ 7,116
Unregulated Operation [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	348	366	651	646
Corporate and Other [Member] | MidAmerican Funding, LLC and Subsidiaries [Domain] | Unregulated Operation [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3	$ 1	$ 8	$ 1

Revenue from Contracts with C_9

Revenue from Contracts with Customers Revenue from Contracts with Customers - NPC - Customer Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3,317	$ 3,429	$ 6,833	$ 7,116
Operating revenue	4,612	4,894	9,139	9,504
Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	102	138	220	276
Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,969	3,063	6,182	6,470
Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,172	2,232	4,233	4,388
Nevada Power Company [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	509	527	898	922
Nevada Power Company [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	6	7	12	13
Nevada Power Company [Member] | Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	503	520	886	909
Nevada Power Company [Member] | Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	491	506	859	878
Nevada Power Company [Member] | Regulated Operation [Member] | Regulated wholesale, transmission and other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	12	14	27	31
Nevada Power Company [Member] | Fully bundled customer [Member] | Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	485	498	846	863
Nevada Power Company [Member] | Fully bundled customer [Member] | Regulated Operation [Member] | Regulated retail electric [Member] | Residential [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	304	266	497	466
Nevada Power Company [Member] | Fully bundled customer [Member] | Regulated Operation [Member] | Regulated retail electric [Member] | Commercial [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	96	114	190	204
Nevada Power Company [Member] | Fully bundled customer [Member] | Regulated Operation [Member] | Regulated retail electric [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	83	112	154	182
Nevada Power Company [Member] | Fully bundled customer [Member] | Regulated Operation [Member] | Regulated retail electric [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2	6	5	11
Nevada Power Company [Member] | Distribution only service [Member] | Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 6	$ 8	$ 13	$ 15

Revenue from Contracts with _10

Revenue from Contracts with Customers Revenue from Contracts with Customers - SPPC - Customer Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3,317	$ 3,429	$ 6,833	$ 7,116
Operating revenue	4,612	4,894	9,139	9,504
Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	102	138	220	276
Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,969	3,063	6,182	6,470
Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,172	2,232	4,233	4,388
Regulated Operation [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	104	116	338	413
Sierra Pacific Power Company [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	185	194	417	413
Sierra Pacific Power Company [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1	2	3	3
Sierra Pacific Power Company [Member] | Regulated Electric [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	165	172	349	354
Sierra Pacific Power Company [Member] | Regulated Electric [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1	1	2	2
Sierra Pacific Power Company [Member] | Regulated Gas [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	20	22	68	59
Sierra Pacific Power Company [Member] | Regulated Gas [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	0	1	1	1
Sierra Pacific Power Company [Member] | Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	184	192	414	410
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Regulated wholesale, transmission and other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	9	11	24	28
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Regulated Electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	164	171	347	352
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Regulated Electric [Member] | Regulated wholesale, transmission and other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	9	11	24	28
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Regulated Gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	20	21	67	58
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Regulated Gas [Member] | Regulated wholesale, transmission and other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0	0
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Fully bundled customer [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	174	180	388	380
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Fully bundled customer [Member] | Residential [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	77	72	176	164
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Fully bundled customer [Member] | Commercial [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	60	59	129	123
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Fully bundled customer [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	36	48	81	90
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Fully bundled customer [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1	1	2	3
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Fully bundled customer [Member] | Regulated Electric [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	154	159	321	322
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Fully bundled customer [Member] | Regulated Electric [Member] | Regulated retail electric [Member] | Residential [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	63	58	132	126
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Fully bundled customer [Member] | Regulated Electric [Member] | Regulated retail electric [Member] | Commercial [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	56	54	112	108
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Fully bundled customer [Member] | Regulated Electric [Member] | Regulated retail electric [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	34	46	75	85
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Fully bundled customer [Member] | Regulated Electric [Member] | Regulated retail electric [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1	1	2	3
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Fully bundled customer [Member] | Regulated Gas [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	20	21	67	58
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Fully bundled customer [Member] | Regulated Gas [Member] | Regulated retail gas [Member] | Residential [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	14	14	44	38
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Fully bundled customer [Member] | Regulated Gas [Member] | Regulated retail gas [Member] | Commercial [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	4	5	17	15
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Fully bundled customer [Member] | Regulated Gas [Member] | Regulated retail gas [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2	2	6	5
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Fully bundled customer [Member] | Regulated Gas [Member] | Regulated retail gas [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0	0
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Distribution only service [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1	1	2	2
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Distribution only service [Member] | Regulated Electric [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1	1	2	2
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Distribution only service [Member] | Regulated Gas [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0	0
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Fully bundled and distribution services only customer [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	175	181	390	382
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Fully bundled and distribution services only customer [Member] | Regulated Electric [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	155	160	323	324
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Fully bundled and distribution services only customer [Member] | Regulated Gas [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 20	$ 21	$ 67	$ 58

Components of Accumulated Oth_3

Components of Accumulated Other Comprehensive Loss, Net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance - Accumulated other comprehensive loss, net			$ (1,706)
Other comprehensive income (loss), unrecognized amounts on retirement benefits	$ 10	$ 18	44	$ (14)
Other comprehensive income (loss), foreign currency translation adjustment	109	(49)	(439)	106
Other comprehensive income (loss), unrealized gains (losses) on cash flow hedges	9	(27)	(24)	(35)
Other comprehensive income (loss)	128	(58)	(419)	57
Ending balance - Accumulated other comprehensive loss, net	(2,125)		(2,125)
Accumulated Other Comprehensive (Loss) Income, Net [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance - unrecognized amounts on retirement benefits			(417)	(358)
Beginning balance - foreign currency translation adjustment			(1,296)	(1,623)
Beginning balance - unrealized gains (losses) on cash flow hedges			7	36
Beginning balance - Accumulated other comprehensive loss, net			(1,706)	(1,945)
Other comprehensive income (loss), unrecognized amounts on retirement benefits			44	(14)
Other comprehensive income (loss), foreign currency translation adjustment			(439)	106
Other comprehensive income (loss), unrealized gains (losses) on cash flow hedges			(24)	(35)
Other comprehensive income (loss)	128	(58)	(419)	57
Ending balance - unrecognized amounts on retirement benefits	(373)	(372)	(373)	(372)
Ending balance - foreign currency translation adjustment	(1,735)	(1,517)	(1,735)	(1,517)
Ending balance - unrealized gains (losses) on cash flow hedges	(17)	1	(17)	1
Ending balance - Accumulated other comprehensive loss, net	$ (2,125)	$ (1,888)	$ (2,125)	$ (1,888)

Components of Accumulated Oth_4

Components of Accumulated Other Comprehensive Loss, Net - MEC (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance - Accumulated other comprehensive loss, net			$ (1,706)
Other comprehensive income (loss), unrealized gains (losses) on cash flow hedges	$ 9	$ (27)	(24)	$ (35)
Other comprehensive income (loss)	128	(58)	(419)	57
Ending balance - Accumulated other comprehensive loss, net	(2,125)		(2,125)
Accumulated Other Comprehensive (Loss) Income, Net [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance - unrealized gains (losses) on cash flow hedges			7	36
Beginning balance - Accumulated other comprehensive loss, net			(1,706)	(1,945)
Other comprehensive income (loss), unrealized gains (losses) on cash flow hedges			(24)	(35)
Other comprehensive income (loss)	128	(58)	(419)	57
Ending balance - unrealized gains (losses) on cash flow hedges	(17)	1	(17)	1
Ending balance - Accumulated other comprehensive loss, net	$ (2,125)	$ (1,888)	$ (2,125)	$ (1,888)

Segment Information (Details)

Segment Information (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2020		Jun. 30, 2019		Jun. 30, 2020	Jun. 30, 2019		Dec. 31, 2019
Segment Reporting Information [Line Items]
Operating revenue	$ 4,612		$ 4,894		$ 9,139	$ 9,504
Depreciation and amortization - energy operations	(725)		(728)		(1,534)	(1,448)
Depreciation and amortization	736		739		1,557	1,472
Operating income	936		959		1,855	1,878
Interest expense	503		476		986	953
Capitalized interest	19		17		36	33
Interest Costs Capitalized					36	33
Allowance for equity funds	38		38		72	70
Interest and dividend income	20		36		40	66
Gains (losses) on marketable securities, net	583		6		610	(62)
Other, net	52		30		25	65
Income before income tax expense and equity income	1,145		610		1,652	1,097
Assets	104,417				104,417			$ 100,051
PacifiCorp [Member]
Segment Reporting Information [Line Items]
Operating revenue	1,144		1,167		2,350	2,426
Depreciation and amortization - energy operations	(210)		(209)		(462)	(414)
Operating income	256		268		490	552
Interest expense	110		102		212	198
Assets	26,128				26,128			24,861
MidAmerican Funding [Member]
Segment Reporting Information [Line Items]
Operating revenue	616		660		1,302	1,502
Depreciation and amortization - energy operations	(175)		(179)		(351)	(356)
Operating income	110		94		212	210
Interest expense	78		74		159	149
Assets	23,155				23,155			22,664
NV Energy, Inc. [Member]
Segment Reporting Information [Line Items]
Operating revenue	695		721		1,317	1,335
Depreciation and amortization - energy operations	(125)		(120)		(249)	(240)
Operating income	161		150		240	234
Interest expense	57		56		115	118
Assets	14,420				14,420			14,128
Northern Powergrid Holdings [Member]
Segment Reporting Information [Line Items]
Operating revenue	221		243		487	506
Depreciation and amortization - energy operations	(63)		(63)		(126)	(126)
Operating income	89		110		221	239
Interest expense	31		35		63	69
Assets	8,083				8,083			8,385
BHE Pipeline Group [Member]
Segment Reporting Information [Line Items]
Operating revenue	225		212		626	583
Depreciation and amortization - energy operations	(25)		(29)		(89)	(57)
Operating income	92		68		341	311
Interest expense	15		12		29	24
Assets	6,182				6,182			6,100
BHE Transmission [Member]
Segment Reporting Information [Line Items]
Operating revenue	169		175		341	343
Depreciation and amortization - energy operations	(55)		(60)		(115)	(118)
Operating income	81		77		157	153
Interest expense	35		39		73	78
Assets	8,616				8,616			8,776
Berkshire Hathaway Energy Renewables [Member]
Segment Reporting Information [Line Items]
Operating revenue	244		249		422	416
Depreciation and amortization - energy operations	(71)		(69)		(142)	(139)
Operating income	84		97		101	115
Interest expense	42		44		84	88
Assets	11,134				11,134			9,961
HomeServices [Member]
Segment Reporting Information [Line Items]
Operating revenue	1,193		1,327		2,086	2,112
Depreciation and amortization	12		11		23	24
Operating income	77		117		97	96
Interest expense	3		7		8	14
Assets	4,703				4,703			3,846
Berkshire Hathaway Energy And Other [Member]
Segment Reporting Information [Line Items]
Operating revenue	105	[1]	140	[1]	208	281	[1]
Depreciation and amortization - energy operations	0		(1)		0	(2)
Operating income	(14)		(22)		(4)	(32)
Interest expense	132		107		243	215
Assets	1,996				1,996			$ 1,330
UNITED STATES
Segment Reporting Information [Line Items]
Operating revenue	4,224		4,476		8,313	8,653
Income before income tax expense and equity income	1,027		482		1,381	818
UNITED KINGDOM
Segment Reporting Information [Line Items]
Operating revenue	221		242		487	505
Income before income tax expense and equity income	59		76		168	179
CANADA
Segment Reporting Information [Line Items]
Operating revenue	167		175		338	343
Income before income tax expense and equity income	46		39		86	79
The Philippines and other [Member]
Segment Reporting Information [Line Items]
Operating revenue	0		1		1	3
Income before income tax expense and equity income	$ 13		$ 13		$ 17	$ 21
[1]	(1)The BHE and Other reportable segment represents amounts related principally to other entities, corporate functions and intersegment eliminations.

Segment Information - Goodwill

Segment Information - Goodwill (Details) $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 9,722
Foreign currency translation	(110)
Ending balance	9,612
PacifiCorp [Member]
Goodwill [Roll Forward]
Beginning balance	1,129
Foreign currency translation	0
Ending balance	1,129
MidAmerican Funding [Member]
Goodwill [Roll Forward]
Beginning balance	2,102
Foreign currency translation	0
Ending balance	2,102
NV Energy, Inc. [Member]
Goodwill [Roll Forward]
Beginning balance	2,369
Foreign currency translation	0
Ending balance	2,369
Northern Powergrid Holdings [Member]
Goodwill [Roll Forward]
Beginning balance	978
Foreign currency translation	(45)
Ending balance	933
BHE Pipeline Group [Member]
Goodwill [Roll Forward]
Beginning balance	73
Foreign currency translation	0
Ending balance	73
BHE Transmission [Member]
Goodwill [Roll Forward]
Beginning balance	1,520
Foreign currency translation	(65)
Ending balance	1,455
Berkshire Hathaway Energy Renewables [Member]
Goodwill [Roll Forward]
Beginning balance	95
Foreign currency translation	0
Ending balance	95
HomeServices [Member]
Goodwill [Roll Forward]
Beginning balance	1,456
Foreign currency translation	0
Ending balance	$ 1,456

Segment Information Segment Inf

Segment Information Segment Information - MEC (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2020USD ($)OperatingSegmentsReportableSegments	Jun. 30, 2019USD ($)	Dec. 31, 2019USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | OperatingSegments			8
Operating revenue	$ 4,612	$ 4,894	$ 9,139	$ 9,504
Operating income	936	959	1,855	1,878
Interest expense	(503)	(476)	(986)	(953)
Allowance for borrowed funds	19	17	36	33
Allowance for equity funds	38	38	72	70
Other, net	52	30	25	65
Income before income tax (benefit) expense and equity income	1,145	610	1,652	1,097
Assets	104,417		$ 104,417		$ 100,051
MidAmerican Energy Company [Member]
Segment Reporting Information [Line Items]
Number of reportable segments | ReportableSegments			2
Operating revenue	613	659	$ 1,294	1,501
Operating income	108	94	206	209
Interest expense	(74)	(70)	(150)	(139)
Allowance for borrowed funds	4	7	7	13
Allowance for equity funds	9	17	17	32
Other, net	21	10	16	30
Income before income tax (benefit) expense and equity income	68	58	96	145
Assets	21,048		21,048		20,564
MidAmerican Energy Company [Member] | Regulated electric
Segment Reporting Information [Line Items]
Operating revenue	518	538	989	1,080
Operating income	101	87	160	153
Assets	19,661		19,661		19,093
MidAmerican Energy Company [Member] | Regulated natural gas
Segment Reporting Information [Line Items]
Operating revenue	95	111	304	406
Operating income	7	5	46	53
Assets	1,386		1,386		1,468
MidAmerican Energy Company [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Operating revenue	0	10	1	15
Operating income	0	$ 2	0	$ 3
Assets	$ 1		$ 1		$ 3

Segment Information Segment I_2

Segment Information Segment Information - MidAmerican Funding (Details) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2020USD ($)OperatingSegmentsReportableSegments	Jun. 30, 2019USD ($)	Dec. 31, 2019USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | OperatingSegments				8
Operating revenue		$ 4,612	$ 4,894	$ 9,139	$ 9,504
Operating income		936	959	1,855	1,878
Interest expense		(503)	(476)	(986)	(953)
Allowance for borrowed funds		19	17	36	33
Allowance for equity funds		38	38	72	70
Other, net		52	30	25	65
Income before income tax (benefit) expense and equity income		1,145	610	1,652	1,097
Assets		104,417		$ 104,417		$ 100,051
MidAmerican Funding, LLC and Subsidiaries [Domain]
Segment Reporting Information [Line Items]
Number of reportable segments | ReportableSegments				2
Operating revenue		616	660	$ 1,302	1,502
Operating income		110	94	212	210
Interest expense		(78)	(74)	(159)	(149)
Allowance for borrowed funds		4	7	7	13
Allowance for equity funds		9	17	17	32
Other, net		21	10	15	31
Income before income tax (benefit) expense and equity income		66	54	92	137
Assets	[1]	22,327		22,327		21,840
MidAmerican Funding, LLC and Subsidiaries [Domain] | Regulated electric
Segment Reporting Information [Line Items]
Operating revenue		518	538	989	1,080
Operating income		101	87	160	153
Assets	[1]	20,852		20,852		20,284
MidAmerican Funding, LLC and Subsidiaries [Domain] | Regulated natural gas
Segment Reporting Information [Line Items]
Operating revenue		95	111	304	406
Operating income		7	5	46	53
Assets	[1]	1,465		1,465		1,547
MidAmerican Funding, LLC and Subsidiaries [Domain] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Operating revenue		3	11	9	16
Operating income		2	$ 2	6	$ 4
Assets	[1]	$ 10		$ 10		$ 9
[1]	(1)Consists principally of cash and cash equivalents not included in either the regulated electric or regulated natural gas segments.

Segment Information Segment I_3

Segment Information Segment Information - SPPC (Details) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2020USD ($)OperatingSegmentsTheNumberOfReportableSegments	Jun. 30, 2019USD ($)	Dec. 31, 2019USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | OperatingSegments				8
Operating revenue		$ 4,612	$ 4,894	$ 9,139	$ 9,504
Operating income		936	959	1,855	1,878
Interest expense		(503)	(476)	(986)	(953)
Allowance for borrowed funds		19	17	36	33
Allowance for equity funds		38	38	72	70
Other, net		52	30	25	65
Income before income tax expense and equity income		1,145	610	1,652	1,097
Assets		104,417		$ 104,417		$ 100,051
Sierra Pacific Power Company [Member]
Segment Reporting Information [Line Items]
Number of reportable segments | TheNumberOfReportableSegments				2
Operating revenue		185	194	$ 417	413
Operating income		23	27	63	64
Interest expense		(14)	(12)	(28)	(24)
Allowance for borrowed funds		1	1	1	1
Allowance for equity funds		1	1	2	2
Other, net		3	1	4	3
Income before income tax expense and equity income		14	18	42	46
Assets		3,711		3,711		3,671
Sierra Pacific Power Company [Member] | Regulated electric
Segment Reporting Information [Line Items]
Regulated Operating Revenue		165	172	349	354
Operating income		20	23	53	52
Assets		3,375		3,375		3,319
Sierra Pacific Power Company [Member] | Regulated natural gas
Segment Reporting Information [Line Items]
Regulated Operating Revenue, Gas		20	22	68	59
Operating income		3	$ 4	10	$ 12
Assets		309		309		308
Sierra Pacific Power Company [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Assets	[1]	$ 27		$ 27		$ 44
[1]	(1)Consists principally of cash and cash equivalents not included in either the regulated electric or regulated natural gas segments.

BHE Shareholders' Equity (Detai

BHE Shareholders' Equity (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Class of Stock [Line Items]
Stock Repurchased During Period, Value	$ 126	$ 293
Common Stock [Member]
Class of Stock [Line Items]
Stock Repurchased and Retired During Period, Shares	180,358	447,712
Stock Repurchased During Period, Value	$ 126	$ 293