PacifiCorp (PPWLO) 10-Q 4 May 20 2020 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2020	Apr. 30, 2020
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
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	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 2,071	$ 1,040
Restricted cash and cash equivalents	217	212
Trade receivables, net	1,772	1,910
Inventories	912	873
Mortgage loans held-for-sale	1,183	1,039
Other current assets	1,229	839
Total current assets	7,384	5,913
Property, plant and equipment, net	72,664	73,305
Goodwill	9,562	9,722
Regulatory assets	2,834	2,766
Investments and restricted cash and cash equivalents and investments	6,293	6,255
Other assets	2,069	2,090
Total assets	100,806	100,051
Current liabilities:
Accounts payable	1,542	1,839
Accrued interest	514	493
Accrued property, income and other taxes	417	537
Accrued employee expenses	296	285
Short-term debt	2,088	3,214
Current portion of long-term debt	1,324	2,539
Other current liabilities	1,634	1,350
Total current liabilities	7,815	10,257
BHE senior debt	11,010	8,231
BHE junior subordinated debentures	100	100
Subsidiary debt	29,061	28,483
Regulatory liabilities	6,957	7,100
Deferred Income Tax Liabilities, Net	9,677	9,653
Other long-term liabilities	3,614	3,649
Total liabilities	68,234	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	6,382	6,389
Long-term income tax receivable	(530)	(530)
Retained earnings	28,846	28,296
Accumulated other comprehensive loss, net	(2,253)	(1,706)
Total BHE shareholders' equity	32,445	32,449
Noncontrolling interests	127	129
Total equity	32,572	32,578
Total liabilities and equity	$ 100,806	$ 100,051

Consolidated Balance Sheets - P

Consolidated Balance Sheets - PacifiCorp - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 2,071	$ 1,040
Inventories	912	873
Other current assets	1,229	839
Total current assets	7,384	5,913
Regulatory assets	2,834	2,766
Other assets	2,069	2,090
Total assets	100,806	100,051
Current liabilities:
Accounts payable	1,542	1,839
Accrued interest	514	493
Accrued property, income and other taxes	417	537
Accrued employee expenses	296	285
Short-term debt	2,088	3,214
Current portion of long-term debt	1,324	2,539
Other current liabilities	1,634	1,350
Total current liabilities	7,815	10,257
Regulatory liabilities	6,957	7,100
Deferred Income Tax Liabilities, Net	9,677	9,653
Other long-term liabilities	3,614	3,649
Total liabilities	68,234	67,473
Equity:
Common stock	0	0
Additional paid-in capital	6,382	6,389
Retained earnings	28,846	28,296
Accumulated other comprehensive loss, net	(2,253)	(1,706)
Total BHE shareholders' equity	32,445	32,449
Total liabilities and equity	100,806	100,051
PacifiCorp [Member]
Current assets:
Cash and cash equivalents	53	30
Trade receivables, net	572	644
Other Receivables, Net, Current	43	70
Inventories	420	394
Regulatory assets	72	63
Prepaid Expense, Current	64	61
Other current assets	21	28
Total current assets	1,245	1,290
Property, plant and equipment, net	21,099	20,973
Regulatory assets	1,086	1,060
Other assets	362	374
Total assets	23,792	23,697
Current liabilities:
Accounts payable	660	679
Accrued interest	112	116
Accrued property, income and other taxes	114	96
Accrued employee expenses	99	75
Short-term debt	56	130
Current portion of long-term debt	38	38
Regulatory Liability, Current	89	56
Other current liabilities	195	170
Total current liabilities	1,363	1,360
Long-term debt	7,621	7,620
Regulatory liabilities	2,830	2,913
Deferred Income Tax Liabilities, Net	2,579	2,563
Other long-term liabilities	785	804
Total liabilities	15,178	15,260
Equity:
Preferred Stock, Value, Issued	2	2
Common stock	0	0
Additional paid-in capital	4,479	4,479
Retained earnings	4,148	3,972
Accumulated other comprehensive loss, net	(15)	(16)
Total BHE shareholders' equity	8,614	8,437
Total liabilities and equity	$ 23,792	$ 23,697

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - PacifiCorp - $ / shares shares in Millions	Mar. 31, 2020	Dec. 31, 2019
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	115	115
Common stock, shares issued	76	77
Common stock, shares outstanding	76	77
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	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 2,071	$ 1,040
Inventories	912	873
Other current assets	1,229	839
Total current assets	7,384	5,913
Regulatory assets	2,834	2,766
Investments and restricted cash and cash equivalents and investments	6,293	6,255
Other assets	2,069	2,090
Total assets	100,806	100,051
Current liabilities:
Accounts payable	1,542	1,839
Accrued interest	514	493
Accrued property, income and other taxes	417	537
Short-term debt	2,088	3,214
Current portion of long-term debt	1,324	2,539
Other current liabilities	1,634	1,350
Total current liabilities	7,815	10,257
Regulatory liabilities	6,957	7,100
Deferred Income Tax Liabilities, Net	9,677	9,653
Other long-term liabilities	3,614	3,649
Total liabilities	68,234	67,473
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	6,382	6,389
Retained earnings	28,846	28,296
Accumulated other comprehensive loss, net	(2,253)	(1,706)
Total BHE shareholders' equity	32,445	32,449
Total liabilities and equity	100,806	100,051
MidAmerican Energy Company [Member]
Current assets:
Cash and cash equivalents	100	287
Trade receivables, net	265	291
Income Taxes Receivable, Current	178	0
Inventories	232	226
Other current assets	86	90
Total current assets	861	894
Property, plant and equipment, net	18,502	18,375
Regulatory assets	301	289
Investments and restricted cash and cash equivalents and investments	739	818
Other assets	188	188
Total assets	20,591	20,564
Current liabilities:
Accounts payable	440	519
Accrued interest	85	78
Accrued property, income and other taxes	118	225
Short-term debt	50	0
Other current liabilities	212	219
Total current liabilities	905	1,041
Long-term debt	7,209	7,208
Regulatory liabilities	1,365	1,406
Deferred Income Tax Liabilities, Net	2,677	2,626
Asset retirement obligations	720	704
Other long-term liabilities	324	339
Total liabilities	13,200	13,324
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	561	561
Retained earnings	6,830	6,679
Total BHE shareholders' equity	7,391	7,240
Total liabilities and equity	$ 20,591	$ 20,564

Consolidated Balance Sheets Bal

Consolidated Balance Sheets Balance Sheets (Parenthetical) - MEC - $ / shares shares in Millions	Mar. 31, 2020	Dec. 31, 2019
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	115	115
Common stock, shares issued	76	77
Common stock, shares outstanding	76	77
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		Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents		$ 2,071	$ 1,040
Inventories		912	873
Other current assets		1,229	839
Total current assets		7,384	5,913
Property, plant and equipment, net		72,664	73,305
Goodwill		9,562	9,722
Regulatory assets		2,834	2,766
Investments and restricted cash and cash equivalents and investments		6,293	6,255
Other assets		2,069	2,090
Total assets		100,806	100,051
Current liabilities:
Accounts payable		1,542	1,839
Accrued interest		514	493
Accrued property, income and other taxes		417	537
Short-term debt		2,088	3,214
Current portion of long-term debt		1,324	2,539
Other current liabilities		1,634	1,350
Total current liabilities		7,815	10,257
Regulatory liabilities		6,957	7,100
Deferred Income Tax Liabilities, Net		9,677	9,653
Other long-term liabilities		3,614	3,649
Total liabilities		68,234	67,473
Commitments and contingencies
Equity:
Additional paid-in capital		6,382	6,389
Retained earnings		28,846	28,296
Accumulated other comprehensive loss, net		(2,253)	(1,706)
Total member's equity		32,445	32,449
Total liabilities and equity		100,806	100,051
MidAmerican Funding, LLC and Subsidiaries [Domain]
Current assets:
Cash and cash equivalents		100	288
Trade receivables, net		265	291
Income Taxes Receivable, Current		181	0
Inventories		232	226
Other current assets		86	91
Total current assets		864	896
Property, plant and equipment, net		18,503	18,377
Goodwill		1,270	1,270
Regulatory assets		301	289
Investments and restricted cash and cash equivalents and investments		741	820
Other assets		187	188
Total assets	[1]	21,866	21,840
Current liabilities:
Accounts payable		440	520
Accrued interest		87	84
Accrued property, income and other taxes		118	226
Notes Payable, Related Parties, Current		175	171
Short-term debt		50	0
Other current liabilities		212	219
Total current liabilities		1,082	1,220
Long-term debt		7,449	7,448
Regulatory liabilities		1,365	1,406
Deferred Income Tax Liabilities, Net		2,675	2,621
Asset retirement obligations		720	704
Other long-term liabilities		324	340
Total liabilities		13,615	13,739
Commitments and contingencies
Equity:
Additional paid-in capital		1,679	1,679
Retained earnings		6,572	6,422
Total member's equity		8,251	8,101
Total liabilities and equity		$ 21,866	$ 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	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 2,071	$ 1,040
Inventories	912	873
Other current assets	1,229	839
Total current assets	7,384	5,913
Regulatory assets	2,834	2,766
Other assets	2,069	2,090
Total assets	100,806	100,051
Current liabilities:
Accounts payable	1,542	1,839
Accrued interest	514	493
Accrued property, income and other taxes	417	537
Current portion of long-term debt	1,324	2,539
Other current liabilities	1,634	1,350
Total current liabilities	7,815	10,257
Regulatory liabilities	6,957	7,100
Deferred Income Tax Liabilities, Net	9,677	9,653
Other long-term liabilities	3,614	3,649
Total liabilities	68,234	67,473
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	6,382	6,389
Retained earnings	28,846	28,296
Accumulated other comprehensive loss, net	(2,253)	(1,706)
Total BHE shareholders' equity	32,445	32,449
Total liabilities and equity	100,806	100,051
Nevada Power Company [Member]
Current assets:
Cash and cash equivalents	121	15
Trade receivables, net	169	215
Inventories	62	62
Prepaid Expense, Current	57	42
Other current assets	32	30
Total current assets	441	364
Property, plant and equipment, net	6,585	6,538
Finance Lease, Right-of-Use Asset	440	441
Regulatory assets	819	800
Other assets	61	59
Total assets	8,346	8,202
Current liabilities:
Accounts payable	150	194
Accrued interest	35	30
Accrued property, income and other taxes	25	25
Current portion of long-term debt	0	575
Regulatory liabilities	95	93
Customer deposits	63	62
Derivative Liability, Current	30	5
Other current liabilities	59	53
Total current liabilities	457	1,037
Long-term debt	2,495	1,776
Finance Lease, Liability, Noncurrent	430	430
Regulatory liabilities	1,173	1,163
Deferred Income Tax Liabilities, Net	710	714
Other long-term liabilities	287	285
Total liabilities	5,552	5,405
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	2,308	2,308
Retained earnings	490	493
Accumulated other comprehensive loss, net	(4)	(4)
Total BHE shareholders' equity	2,794	2,797
Total liabilities and equity	$ 8,346	$ 8,202

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Parenthetical) - NPC - $ / shares	Mar. 31, 2020	Dec. 31, 2019
Common stock, shares authorized	115,000,000	115,000,000
Common stock, shares issued	76,000,000	77,000,000
Common stock, shares outstanding	76,000,000	77,000,000
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	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 2,071	$ 1,040
Inventories	912	873
Other current assets	1,229	839
Total current assets	7,384	5,913
Regulatory assets	2,834	2,766
Other assets	2,069	2,090
Total assets	100,806	100,051
Current liabilities:
Accounts payable	1,542	1,839
Accrued interest	514	493
Accrued property, income and other taxes	417	537
Other current liabilities	1,634	1,350
Total current liabilities	7,815	10,257
Regulatory liabilities	6,957	7,100
Deferred Income Tax Liabilities, Net	9,677	9,653
Other long-term liabilities	3,614	3,649
Total liabilities	68,234	67,473
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	6,382	6,389
Retained earnings	28,846	28,296
Accumulated other comprehensive loss, net	(2,253)	(1,706)
Total BHE shareholders' equity	32,445	32,449
Total liabilities and equity	100,806	100,051
Sierra Pacific Power Company [Member]
Current assets:
Cash and cash equivalents	27	27
Trade receivables, net	97	109
Income Taxes Receivable, Current	7	14
Inventories	60	57
Regulatory assets	18	12
Other current assets	27	20
Total current assets	236	239
Property, plant and equipment, net	3,075	3,075
Regulatory assets	295	283
Other assets	80	74
Total assets	3,686	3,671
Current liabilities:
Accounts payable	93	103
Accrued interest	11	14
Accrued property, income and other taxes	14	12
Regulatory liabilities	64	49
Customer deposits	20	21
Other current liabilities	32	21
Total current liabilities	234	220
Long-term debt, carrying value	1,135	1,135
Regulatory liabilities	463	489
Deferred Income Tax Liabilities, Net	348	347
Other long-term liabilities	161	160
Total liabilities	2,341	2,351
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	1,111	1,111
Retained earnings	235	210
Accumulated other comprehensive loss, net	(1)	(1)
Total BHE shareholders' equity	1,345	1,320
Total liabilities and equity	$ 3,686	$ 3,671

Consolidated Balance Sheets (_3

Consolidated Balance Sheets (Parenthetical) - SPPC - $ / shares	Mar. 31, 2020	Dec. 31, 2019
Common stock, shares authorized	115,000,000	115,000,000
Common stock, shares issued	76,000,000	77,000,000
Common stock, shares outstanding	76,000,000	77,000,000
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	Mar. 31, 2020	Dec. 31, 2019
BHE shareholders' equity:
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	115	115
Common stock, shares issued	76	77
Common stock, shares outstanding	76	77

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating revenue:
Total operating revenue	$ 4,527	$ 4,610
Cost of sales	1,038	1,214
Energy:
Operations and maintenance	737	802
Depreciation and amortization	809	720
Property and other taxes	151	149
Real estate	873	806
Total operating expenses	3,608	3,691
Operating income	919	919
Other income (expense):
Interest Costs Incurred	483	477
Capitalized interest	17	16
Allowance for equity funds	34	32
Interest and dividend income	20	30
Gains (losses) on marketable securities, net	27	(68)
Other, net	(27)	35
Total other income (expense)	(412)	(432)
Income before income tax benefit and equity loss	507	487
Income tax benefit	(184)	(148)
Equity loss	(18)	(10)
Net income	673	625
Net income attributable to noncontrolling interests	3	3
Net income attributable to BHE shareholders	670	622
Electricity and natural gas [Member]
Operating revenue:
Total operating revenue	3,634	3,825
Residential real estate brokerage and mortgage businesses [Member]
Operating revenue:
Total operating revenue	$ 893	$ 785

Consolidated Statements of Op_2

Consolidated Statements of Operations - PacifiCorp - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating revenue	$ 4,527	$ 4,610
Cost of sales	1,038	1,214
Operating expenses:
Operating income	919	919
Other income (expense):
Interest expense	(483)	(477)
Allowance for borrowed funds	17	16
Allowance for equity funds	34	32
Interest and dividend income	20	30
Other, net	(27)	35
Total other income (expense)	(412)	(432)
Income before income tax expense and equity income	507	487
Income tax benefit	(184)	(148)
Net income attributable to BHE shareholders	670	622
PacifiCorp [Member]
Operating revenue	1,206	1,259
Cost of sales	417	465
Operating expenses:
Operations and maintenance	254	256
Depreciation and amortization	252	205
Property and other taxes	49	49
Utilities Operating Expense	972	975
Operating income	234	284
Other income (expense):
Interest expense	(102)	(96)
Allowance for borrowed funds	10	7
Allowance for equity funds	21	14
Interest and dividend income	3	5
Other, net	(4)	7
Total other income (expense)	(72)	(63)
Income before income tax expense and equity income	162	221
Income tax benefit	(14)	42
Net income attributable to BHE shareholders	$ 176	$ 179

Statements of Operations - MEC

Statements of Operations - MEC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating revenue:
Total operating revenue	$ 4,527	$ 4,610
Cost of sales	1,038	1,214
Operating expenses:
Total operating expenses	3,608	3,691
Operating income	919	919
Other income (expense):
Interest expense	(483)	(477)
Allowance for borrowed funds	17	16
Allowance for equity funds	34	32
Other, net	(27)	35
Total other income (expense)	(412)	(432)
Income before income tax (benefit) expense and equity income	507	487
Income tax benefit	(184)	(148)
Net Income (Loss) Attributable to Parent	670	622
MidAmerican Energy Company [Member]
Operating revenue:
Total operating revenue	681	842
Operating expenses:
Operations and maintenance	165	207
Depreciation and amortization	176	177
Property and other taxes	34	34
Total operating expenses	583	727
Operating income	98	115
Other income (expense):
Interest expense	(76)	(69)
Allowance for borrowed funds	3	6
Allowance for equity funds	8	15
Other, net	(5)	20
Total other income (expense)	(70)	(28)
Income before income tax (benefit) expense and equity income	28	87
Income tax benefit	(123)	(106)
Net Income (Loss) Attributable to Parent	151	193
Regulated electric | MidAmerican Energy Company [Member]
Operating revenue:
Total operating revenue	471	542
Cost of sales	80	114
Regulated natural gas and other | MidAmerican Energy Company [Member]
Operating revenue:
Total operating revenue	210	300
Cost of sales	$ 128	$ 195

Consolidated Statements of Op_3

Consolidated Statements of Operations - MidAmerican Funding - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating revenue:
Total operating revenue	$ 4,527	$ 4,610
Cost of sales	1,038	1,214
Operating expenses:
Total operating expenses	3,608	3,691
Operating income	919	919
Other income (expense):
Interest expense	(483)	(477)
Allowance for borrowed funds	17	16
Allowance for equity funds	34	32
Other, net	(27)	35
Total other income (expense)	(412)	(432)
Income before income tax (benefit) expense and equity income	507	487
Income tax benefit	(184)	(148)
Net Income (Loss) Attributable to Parent	670	622
MidAmerican Funding, LLC and Subsidiaries [Domain]
Operating revenue:
Total operating revenue	686	842
Operating expenses:
Operations and maintenance	165	207
Depreciation and amortization	176	177
Property and other taxes	34	34
Total operating expenses	584	726
Operating income	102	116
Other income (expense):
Interest expense	(81)	(75)
Allowance for borrowed funds	3	6
Allowance for equity funds	8	15
Other, net	(6)	21
Total other income (expense)	(76)	(33)
Income before income tax (benefit) expense and equity income	26	83
Income tax benefit	(124)	(107)
Net Income (Loss) Attributable to Parent	150	190
Regulated electric | MidAmerican Funding, LLC and Subsidiaries [Domain]
Operating revenue:
Total operating revenue	471	542
Cost of sales	80	114
Regulated natural gas and other | MidAmerican Funding, LLC and Subsidiaries [Domain]
Operating revenue:
Total operating revenue	215	300
Cost of sales	$ 129	$ 194

Consolidated Statements of Op_4

Consolidated Statements of Operations - NPC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating revenue	$ 4,527	$ 4,610
Cost of sales	1,038	1,214
Total operating expenses	3,608	3,691
Operating income	919	919
Interest expense	(483)	(477)
Capitalized interest	17	16
Allowance for equity funds	34	32
Other, net	(27)	35
Total other income (expense)	(412)	(432)
Income before income tax expense and equity income	507	487
Income tax benefit	(184)	(148)
Net income attributable to BHE shareholders	670	622
Nevada Power Company [Member]
Operating revenue	389	395
Cost of sales	170	173
Operations and maintenance	82	76
Depreciation and amortization	90	89
Property and other taxes	12	12
Total operating expenses	354	350
Operating income	35	45
Interest expense	(42)	(47)
Capitalized interest	1	1
Allowance for equity funds	2	1
Other, net	(1)	8
Total other income (expense)	(40)	(37)
Income before income tax expense and equity income	(5)	8
Income tax benefit	(1)	2
Net income attributable to BHE shareholders	$ (4)	$ 6

Consolidated Statements of Op_5

Consolidated Statements of Operations - SPPC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Total operating revenue	$ 4,527	$ 4,610
Cost of sales	1,038	1,214
Total operating expenses	3,608	3,691
Operating income	919	919
Interest expense	(483)	(477)
Allowance for equity funds	34	32
Other, net	(27)	35
Total other income (expense)	(412)	(432)
Income before income tax expense and equity income	507	487
Income tax benefit	(184)	(148)
Net income attributable to BHE shareholders	670	622
Sierra Pacific Power Company [Member]
Total operating revenue	232	219
Operations and maintenance	42	44
Depreciation and amortization	34	31
Property and other taxes	6	6
Total operating expenses	192	182
Operating income	40	37
Interest expense	(14)	(12)
Allowance for equity funds	1	1
Other, net	1	2
Total other income (expense)	(12)	(9)
Income before income tax expense and equity income	28	28
Income tax benefit	3	6
Net income attributable to BHE shareholders	25	22
Sierra Pacific Power Company [Member] | Regulated electric
Total operating revenue	184	182
Cost of sales	80	82
Sierra Pacific Power Company [Member] | Regulated natural gas
Total operating revenue	48	37
Cost of sales	$ 30	$ 19

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 673	$ 625
Other comprehensive (loss) income, net of tax:
Unrecognized amounts on retirement benefits, net of tax	(34)	32
Foreign currency translation adjustment	(548)	155
Unrealized losses on cash flow hedges, net of tax	(33)	(8)
Total other comprehensive (loss) income, net of tax	(547)	115
Comprehensive income	126	740
Comprehensive income attributable to noncontrolling interests	3	3
Comprehensive income attributable to BHE shareholders	$ 123	$ 737

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Consolidated Statements of Comprehensive Income Parenthetical [Abstract]
Unrecognized amounts on retirement benefits, tax	$ 11	$ (7)
Unrealized (losses) gains on cash flow hedges, tax	$ (10)	$ (2)

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	625	0	0		622	0	3
Other comprehensive income (loss)	115	0	0		0	115	0
Common stock purchases	(293)	0	(16)		(277)	0	0
Distributions	(7)	0	0		0	0	(7)
Other equity transactions	(1)	$ 0	0		(1)	0	0
Balance (shares) at Mar. 31, 2019		77
Balance at Mar. 31, 2019	$ 30,162	$ 0	6,355	(457)	25,968	(1,830)	126
Balance (shares) at Dec. 31, 2019	77	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	673	0	0		670	0	3
Other comprehensive income (loss)	(547)	$ 0	0		0	(547)	0
Common stock purchases, shares		(1)
Common stock purchases	(126)	$ 0	(6)		(120)	0	0
Distributions	(5)	0	0		0	0	(5)
Other equity transactions	$ (1)	$ 0	(1)		0	0	0
Balance (shares) at Mar. 31, 2020	76	76
Balance at Mar. 31, 2020	$ 32,572	$ 0	$ 6,382	$ (530)	$ 28,846	$ (2,253)	$ 127

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	$ 622					179				179
Total other comprehensive (loss) income, net of tax	115	$ 0	$ 0	$ 0	$ 115	1					1
Dividends, Common Stock, Cash						(175)				(175)
Stockholders' Equity Attributable to Parent at Mar. 31, 2019						7,850	2	0	4,479	3,381	(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	670					176				176
Total other comprehensive (loss) income, net of tax	(547)	$ 0	$ 0	$ 0	$ (547)	1				0	1
Stockholders' Equity Attributable to Parent at Mar. 31, 2020	$ 32,445					$ 8,614	$ 2	$ 0	$ 4,479	$ 4,148	$ (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	$ 622					193			193
Other comprehensive income (loss)	115	$ 0	$ 0	$ 0	$ 115
Stockholders' Equity, Other	(1)	0	0	(1)	0
Stockholders' Equity Attributable to Parent at Mar. 31, 2019						6,639	0	561	6,078
Stockholders' Equity Attributable to Parent at Dec. 31, 2019	32,449					7,240	0	561	6,679
Net Income (Loss) Attributable to Parent	670					151			151
Other comprehensive income (loss)	(547)	0	0	0	(547)
Stockholders' Equity, Other	(1)	$ 0	$ (1)	$ 0	$ 0
Stockholders' Equity Attributable to Parent at Mar. 31, 2020	$ 32,445					$ 7,391	$ 0	$ 561	$ 6,830

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	$ 622				190		190
Other comprehensive income (loss)	115	$ 0	$ 0	$ 115
Stockholders' Equity Attributable to Parent at Mar. 31, 2019					7,519	1,679	5,840
Stockholders' Equity, Other	(1)	0	(1)	0
Stockholders' Equity Attributable to Parent at Dec. 31, 2019	32,449				8,101	1,679	6,422
Net Income (Loss) Attributable to Parent	670				150		150
Other comprehensive income (loss)	(547)	0	0	(547)
Stockholders' Equity Attributable to Parent at Mar. 31, 2020	32,445				$ 8,251	$ 1,679	$ 6,572
Stockholders' Equity, Other	$ (1)	$ (1)	$ 0	$ 0

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	$ 622					6			6
Dividends, Common Stock, Cash						(75)			(75)
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)
Stockholders' Equity, Other	$ (1)	$ 0	$ 0	$ (1)	$ 0
Balance (shares) at Dec. 31, 2019	77,000,000	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	$ 670					$ (4)			(4)
Balance (shares) at Mar. 31, 2020	76,000,000	76,000,000				1,000	1,000
Stockholders' Equity Attributable to Parent at Mar. 31, 2020	$ 32,445					$ 2,794	$ 0	$ 2,308	490	$ (4)
Stockholders' Equity, Other	$ (1)	$ 0	$ (1)	$ 0	$ 0	$ 1			$ 1

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	$ 622		22			22
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
Balance (shares) at Dec. 31, 2019	77,000,000	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	$ 670		$ 25			25
Balance (shares) at Mar. 31, 2020	76,000,000	76,000,000	1,000	1,000
Stockholders' Equity Attributable to Parent at Mar. 31, 2020	$ 32,445		$ 1,345	$ 0	$ 1,111	$ 235	$ (1)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income	$ 673	$ 625
Adjustments to reconcile net income to net cash flows from operating activities:
Gains (losses) on marketable securities, net	27	(68)
Depreciation and amortization	821	733
Allowance for equity funds	(34)	(32)
Equity loss, net of distributions	29	26
Changes in regulatory assets and liabilities	0	(52)
Deferred income taxes and amortization of investment tax credits	47	(21)
Other, net	63	1
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	(118)	144
Derivative collateral, net	(19)	(3)
Pension and other postretirement benefit plans	(23)	(21)
Accrued property, income and other taxes, net	(364)	(48)
Accounts payable and other liabilities	117	68
Net cash flows from operating activities	1,165	1,488
Cash flows from investing activities:
Capital expenditures	(1,356)	(1,393)
Acquisitions, net of cash acquired	0	(26)
Purchases of marketable securities	188	159
Proceeds from sales of marketable securities	180	153
Equity method investments	(153)	(7)
Other, net	43	17
Net cash flows from investing activities	(1,474)	(1,415)
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	1,093	2,945
Repayments of subsidiary debt	(1,347)	(1,420)
Net repayments of short-term debt	(1,109)	(311)
Other, net	(34)	(21)
Net cash flows from financing activities	1,358	900
Effect of exchange rate changes	(13)	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	2,304	1,857
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	$ 1,036	$ 974

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows - PacifiCorp - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net Income (Loss) Attributable to Parent	$ 670	$ 622
Increase (Decrease) in Allowance for Equity Funds Used During Construction	(34)	(32)
Changes in regulatory assets and liabilities	0	(52)
Deferred income taxes and amortization of investment tax credits	47	(21)
Other Noncash Income (Expense)	63	1
Trade receivables and other assets	(118)	144
Derivative collateral, net	(19)	(3)
Accrued property, income and other taxes, net	(364)	(48)
Accounts payable and other liabilities	117	68
Net cash flows from operating activities	1,165	1,488
Capital expenditures	(1,356)	(1,393)
Other, net	43	17
Net cash flows from investing activities	(1,474)	(1,415)
Net repayments of short-term debt	(1,109)	(311)
Other, net	(34)	(21)
Net cash flows from financing activities	1,358	900
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	1,036	974
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	2,304	1,857
PacifiCorp [Member]
Net Income (Loss) Attributable to Parent	176	179
Depreciation and amortization	252	205
Increase (Decrease) in Allowance for Equity Funds Used During Construction	(21)	(14)
Changes in regulatory assets and liabilities	(16)	(35)
Deferred income taxes and amortization of investment tax credits	(30)	5
Other Noncash Income (Expense)	6	(1)
Trade receivables and other assets	85	32
Increase (Decrease) in Inventories	(26)	11
Derivative collateral, net	(1)	7
Increase (Decrease) in Prepaid Expenses, Other	(3)	(4)
Accrued property, income and other taxes, net	18	68
Accounts payable and other liabilities	(3)	41
Net cash flows from operating activities	437	494
Capital expenditures	(366)	(337)
Other, net	27	1
Net cash flows from investing activities	(339)	(336)
Proceeds from Issuance of Long-term Debt	0	990
Repayments of BHE senior debt and junior subordinated debentures	0	(350)
Net repayments of short-term debt	(74)	0
Payments of Ordinary Dividends, Common Stock	0	(175)
Other, net	0	(31)
Net cash flows from financing activities	(74)	434
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	24	592
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	$ 60	$ 684

Statements of Cash Flows - MEC

Statements of Cash Flows - MEC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net Income (Loss) Attributable to Parent	$ 670	$ 622
Allowance for equity funds	(34)	(32)
Deferred income taxes and amortization of investment tax credits	47	(21)
Other Noncash Income (Expense)	63	1
Trade receivables and other assets	(118)	144
Derivative collateral, net	(19)	(3)
Pension and other postretirement benefit plans	(23)	(21)
Accrued property, income and other taxes, net	(364)	(48)
Accounts payable and other liabilities	117	68
Net cash flows from operating activities	1,165	1,488
Capital expenditures	(1,356)	(1,393)
Purchases of marketable securities	(188)	(159)
Proceeds from sales of marketable securities	180	153
Other, net	43	17
Net cash flows from investing activities	(1,474)	(1,415)
Net repayments of short-term debt	(1,109)	(311)
Other, net	(34)	(21)
Net cash flows from financing activities	1,358	900
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	1,036	974
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	2,304	1,857
MidAmerican Energy Company [Member]
Net Income (Loss) Attributable to Parent	151	193
Depreciation and amortization	176	177
Amortization of Utility Plant to Other Operating Expense	9	8
Allowance for equity funds	(8)	(15)
Deferred income taxes and amortization of investment tax credits	91	31
Other Noncash Income (Expense)	13	3
Trade receivables and other assets	15	(30)
Increase (Decrease) in Inventories	(6)	55
Pension and other postretirement benefit plans	(6)	(3)
Accrued property, income and other taxes, net	(286)	(159)
Accounts payable and other liabilities	70	18
Net cash flows from operating activities	219	278
Capital expenditures	(472)	(573)
Purchases of marketable securities	(127)	(71)
Proceeds from sales of marketable securities	124	68
Other, net	5	1
Net cash flows from investing activities	(470)	(575)
Proceeds from Issuance of Long-term Debt	0	1,460
Repayments of BHE senior debt and junior subordinated debentures	0	(500)
Net repayments of short-term debt	50	(240)
Other, net	(1)	0
Net cash flows from financing activities	49	720
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	(202)	423
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	$ 128	$ 479

Consolidated Statements of Ca_3

Consolidated Statements of Cash Flows - MidAmerican Funding - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net Income (Loss) Attributable to Parent	$ 670	$ 622
Allowance for equity funds	(34)	(32)
Deferred income taxes and amortization of investment tax credits	47	(21)
Other Noncash Income (Expense)	63	1
Trade receivables and other assets	(118)	144
Derivative collateral, net	(19)	(3)
Pension and other postretirement benefit plans	(23)	(21)
Accrued property, income and other taxes, net	(364)	(48)
Accounts payable and other liabilities	117	68
Net cash flows from operating activities	1,165	1,488
Capital expenditures	(1,356)	(1,393)
Purchases of marketable securities	(188)	(159)
Proceeds from sales of marketable securities	180	153
Other, net	43	17
Net cash flows from investing activities	(1,474)	(1,415)
Net repayments of short-term debt	(1,109)	(311)
Other, net	(34)	(21)
Net cash flows from financing activities	1,358	900
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	1,036	974
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	2,304	1,857
MidAmerican Funding, LLC and Subsidiaries [Domain]
Net Income (Loss) Attributable to Parent	150	190
Depreciation and amortization	176	177
Amortization of Utility Plant to Other Operating Expense	9	8
Allowance for equity funds	(8)	(15)
Deferred income taxes and amortization of investment tax credits	93	31
Other Noncash Income (Expense)	14	4
Trade receivables and other assets	16	(33)
Increase (Decrease) in Inventories	(6)	55
Pension and other postretirement benefit plans	(6)	(3)
Accrued property, income and other taxes, net	(290)	(160)
Accounts payable and other liabilities	66	14
Net cash flows from operating activities	214	268
Capital expenditures	(472)	(573)
Purchases of marketable securities	(127)	(71)
Proceeds from sales of marketable securities	124	68
Other, net	6	0
Net cash flows from investing activities	(469)	(576)
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	3	11
Net repayments of short-term debt	50	(240)
Other, net	(1)	0
Net cash flows from financing activities	52	731
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	(203)	423
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	$ 128	$ 480

Consolidated Statements of Ca_4

Consolidated Statements of Cash Flows - NPC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net Income (Loss) Attributable to Parent	$ 670	$ 622
Allowance for equity funds	(34)	(32)
Changes in regulatory assets and liabilities	0	(52)
Deferred income taxes and amortization of investment tax credits	47	(21)
Other Noncash Income (Expense)	63	1
Trade receivables and other assets	(118)	144
Accrued property, income and other taxes, net	(364)	(48)
Accounts payable and other liabilities	117	68
Net cash flows from operating activities	1,165	1,488
Capital expenditures	(1,356)	(1,393)
Payments for (Proceeds from) Other Investing Activities	(43)	(17)
Net cash flows from investing activities	(1,474)	(1,415)
Other, net	(34)	(21)
Net cash flows from financing activities	1,358	900
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	1,036	974
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	2,304	1,857
Nevada Power Company [Member]
Net Income (Loss) Attributable to Parent	(4)	6
Depreciation and amortization	90	89
Allowance for equity funds	(2)	(1)
Changes in regulatory assets and liabilities	3	28
Deferred income taxes and amortization of investment tax credits	(4)	2
Deferred Energy Change	4	(33)
Amortization of Deferred Charges	0	3
Other Noncash Income (Expense)	8	(5)
Trade receivables and other assets	32	48
Increase (Decrease) in Inventories	(1)	(2)
Accrued property, income and other taxes, net	(6)	(11)
Accounts payable and other liabilities	(41)	11
Net cash flows from operating activities	79	135
Capital expenditures	(111)	(113)
Payments for (Proceeds from) Other Investing Activities	0	(2)
Net cash flows from investing activities	(111)	(111)
Proceeds from Issuance of Long-term Debt	719	495
Repayments of BHE senior debt and junior subordinated debentures	(575)	(500)
Payments of Ordinary Dividends, Common Stock	0	(75)
Other, net	(4)	(3)
Net cash flows from financing activities	140	(83)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	108	(59)
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	$ 133	$ 62

Consolidated Statements of Ca_5

Consolidated Statements of Cash Flows - SPPC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net Income (Loss) Attributable to Parent	$ 670	$ 622
Allowance for equity funds	(34)	(32)
Changes in regulatory assets and liabilities	0	(52)
Deferred income taxes and amortization of investment tax credits	47	(21)
Other Noncash Income (Expense)	(63)	(1)
Trade receivables and other assets	(118)	144
Accrued property, income and other taxes, net	(364)	(48)
Accounts payable and other liabilities	117	68
Net cash flows from operating activities	1,165	1,488
Capital expenditures	(1,356)	(1,393)
Net cash flows from investing activities	(1,474)	(1,415)
Other, net	(34)	(21)
Net cash flows from financing activities	1,358	900
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	1,036	974
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	2,304	1,857
Sierra Pacific Power Company [Member]
Net Income (Loss) Attributable to Parent	25	22
Depreciation and amortization	34	31
Allowance for equity funds	(1)	(1)
Changes in regulatory assets and liabilities	(10)	11
Deferred income taxes and amortization of investment tax credits	(3)	5
Deferred Energy Change	14	(22)
Amortization of Deferred Charges	4	(5)
Other Noncash Income (Expense)	(1)	1
Trade receivables and other assets	1	7
Increase (Decrease) in Inventories	3	0
Accrued property, income and other taxes, net	4	(2)
Accounts payable and other liabilities	(12)	(1)
Net cash flows from operating activities	54	44
Capital expenditures	(52)	(52)
Net cash flows from investing activities	(52)	(52)
Other, net	(1)	0
Net cash flows from financing activities	(1)	0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	1	(8)
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	$ 33	$ 68

General

General	3 Months Ended
	Mar. 31, 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 March 31, 2020 and for the three-month periods ended March 31, 2020 and 2019 . The results of operations for the three-month period ended March 31, 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 three-month period ended March 31, 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 many of the customers served by the Company. While the rapid outbreak of COVID-19 has not had a material impact on the Company's financial results or operations through March 31, 2020, impacts are likely to occur that affect future financial results. 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 March 31, 2020 and for the three-month periods ended March 31, 2020 and 2019 . The Consolidated Statements of Comprehensive Income have been omitted as net income materially equals comprehensive income for the three-month periods ended March 31, 2020 and 2019 . The results of operations for the three-month periods ended March 31, 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 three-month period ended March 31, 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 many of the customers served by PacifiCorp. While the rapid outbreak of COVID-19 has not had a material impact on PacifiCorp's financial results or operations through March 31, 2020, impacts are likely to occur that affect future financial results. Such impacts may include, among others, higher bad debt expense associated with the suspension of disconnections across PacifiCorp's service territory and suspension of late payment fees in certain jurisdictions implemented to assist customers facing unprecedented economic pressures and 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. 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.
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 March 31, 2020 , and for the three-month periods ended March 31, 2020 and 2019 . The Statements of Comprehensive Income have been omitted as net income equals comprehensive income for the three-month period ended March 31, 2020 and 2019 . The results of operations for the three-month periods ended March 31, 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 three-month period ended March 31, 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 many of the customers served by MidAmerican Energy. While the rapid outbreak of COVID-19 has not had a material impact on MidAmerican Energy's financial results or operations through March 31, 2020, impacts are likely to occur that affect future financial results. 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.
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 March 31, 2020 , and for the three-month periods ended March 31, 2020 and 2019 . The Consolidated Statements of Comprehensive Income have been omitted as net income materially equals comprehensive income for the three-month period ended March 31, 2020 and 2019 . The results of operations for the three-month periods ended March 31, 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 three-month period ended March 31, 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 many of the customers served by MidAmerican Funding. While the rapid outbreak of COVID-19 has not had a material impact on MidAmerican Funding's financial results or operations through March 31, 2020, impacts are likely to occur that affect future financial results. 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.
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 March 31, 2020 and for the three-month periods ended March 31, 2020 and 2019 . The Consolidated Statements of Comprehensive Income have been omitted as net income equals comprehensive income for the three-month periods ended March 31, 2020 and 2019 . The results of operations for the three-month period ended March 31, 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 three-month period ended March 31, 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 many of the customers served by Nevada Power. While the rapid outbreak of COVID-19 has not had a material impact on Nevada Power's financial results or operations through March 31, 2020, impacts are likely to occur that affect future financial results. Such impacts may include, among others, potential declines in operating revenue from reductions in the consumption of electricity by retail utility customers as the longer-term impacts of COVID-19 and related customer and governmental responses are uncertain, including the duration of casino closures, which is evidenced by the reduction experienced by Nevada Power in April 2020 compared to the same period in 2019, and higher credit loss expenses 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 facing unprecedented economic pressures. 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 March 31, 2020 and for the three-month periods ended March 31, 2020 and 2019 . The Statements of Comprehensive Income have been omitted as net income equals comprehensive income for the three-month periods ended March 31, 2020 and 2019 . The results of operations for the three-month period ended March 31, 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 three-month period ended March 31, 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 many of the customers served by Sierra Pacific. While the rapid outbreak of COVID-19 has not had a material impact on Sierra Pacific's financial results or operations through March 31, 2020, impacts are likely to occur that affect future financial results. Such impacts may include, among others, potential declines in operating revenue from reductions in the consumption of electricity by retail utility customers as the longer-term impacts of COVID-19 and related customer and governmental responses are uncertain, including the duration of casino closures, which is evidenced by the reduction experienced by Sierra Pacific in April 2020 compared to the same period in 2019, and higher credit loss expenses 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 facing unprecedented economic pressures. 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.

Investments and Restricted Cash

Investments and Restricted Cash and Investments	3 Months Ended
	Mar. 31, 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 March 31, December 31, 2020 2019 Investments: BYD Company Limited common stock $ 1,176 $ 1,122 Rabbi trusts 364 410 Other 171 187 Total investments 1,711 1,719 Equity method investments: BHE Renewables tax equity investments 3,232 3,130 Electric Transmission Texas, LLC 562 555 Bridger Coal Company 77 81 Other 182 181 Total equity method investments 4,053 3,947 Restricted cash and cash equivalents and investments: Quad Cities Station nuclear decommissioning trust funds 541 599 Other restricted cash and cash equivalents 233 230 Total restricted cash and cash equivalents and investments 774 829 Total investments and restricted cash and cash equivalents and investments $ 6,538 $ 6,495 Reflected as: Current assets $ 245 $ 240 Noncurrent assets 6,293 6,255 Total investments and restricted cash and cash equivalents and investments $ 6,538 $ 6,495 Investments Gains (losses) on marketable securities, net recognized during the period consists of the following (in millions): Three-Month Periods Ended March 31, 2020 2019 Unrealized gains (losses) recognized on marketable securities still held at the reporting date $ 25 $ (68 ) Net gains recognized on marketable securities sold during the period 2 — Gains (losses) on marketable securities, net $ 27 $ (68 ) 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 March 31, 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 March 31, 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 March 31, December 31, 2020 2019 Cash and cash equivalents $ 2,071 $ 1,040 Restricted cash and cash equivalents 217 212 Investments and restricted cash and cash equivalents and investments 16 16 Total cash and cash equivalents and restricted cash and cash equivalents $ 2,304 $ 1,268

Property, Plant and Equipment,

Property, Plant and Equipment, Net	3 Months Ended
	Mar. 31, 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 March 31, December 31, Life 2020 2019 Regulated assets: Utility generation, transmission and distribution systems 5-80 years $ 80,530 $ 81,127 Interstate natural gas pipeline assets 3-80 years 8,181 8,165 88,711 89,292 Accumulated depreciation and amortization (26,414 ) (26,353 ) Regulated assets, net 62,297 62,939 Nonregulated assets: Independent power plants 5-30 years 6,994 6,983 Other assets 3-30 years 1,798 1,834 8,792 8,817 Accumulated depreciation and amortization (2,244 ) (2,183 ) Nonregulated assets, net 6,548 6,634 Net operating assets 68,845 69,573 Construction work-in-progress 3,819 3,732 Property, plant and equipment, net $ 72,664 $ 73,305 Construction work-in-progress includes $3.7 billion as of March 31, 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 March 31, 2020 and December 31, 2019 , nonregulated property gross of $1 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 March 31, December 31, Depreciable Life 2020 2019 Utility plant in service, net: Generation 20-70 years $ 15,776 $ 15,687 Transmission 52-75 years 2,138 2,124 Electric distribution 20-75 years 4,131 4,095 Natural gas distribution 29-75 years 1,833 1,820 Utility plant in service 23,878 23,726 Accumulated depreciation and amortization (6,233 ) (6,139 ) Utility plant in service, net 17,645 17,587 Nonregulated property, net: Nonregulated property gross 20-50 years 7 7 Accumulated depreciation and amortization (1 ) (1 ) Nonregulated property, net 6 6 17,651 17,593 Construction work-in-progress 851 782 Property, plant and equipment, net $ 18,502 $ 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 March 31, December 31, Depreciable Life 2020 2019 Utility Plant: Generation 14 - 67 years $ 12,468 $ 12,509 Transmission 58 - 75 years 6,513 6,482 Distribution 20 - 70 years 7,359 7,307 Intangible plant (1) 5 - 75 years 1,018 1,016 Other 5 - 60 years 1,463 1,449 Utility plant in service 28,821 28,763 Accumulated depreciation and amortization (9,739 ) (9,803 ) Utility plant in-service, net 19,082 18,960 Other non-regulated, net of accumulated depreciation and amortization 59 years 9 10 Plant, net 19,091 18,970 Construction work-in-progress 2,008 2,003 Property, plant and equipment, net $ 21,099 $ 20,973 (1) Computer software costs included in intangible plant are initially assigned a depreciable life of 5 to 10 years. In March 2020, PacifiCorp acquired wind turbines from BHE Wind, LLC, an indirect wholly owned subsidiary of BHE, for $47 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 March 31, December 31, 2020 2019 Utility plant: Generation 30 - 55 years $ 3,551 $ 3,541 Transmission 45 - 70 years 1,456 1,444 Distribution 20 - 65 years 3,603 3,567 General and intangible plant 5 - 65 years 744 741 Utility plant 9,354 9,293 Accumulated depreciation and amortization (3,020 ) (2,951 ) Utility plant, net 6,334 6,342 Other non-regulated, net of accumulated depreciation and amortization 45 years 1 1 Plant, net 6,335 6,343 Construction work-in-progress 250 195 Property, plant and equipment, net $ 6,585 $ 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 March 31, December 31, 2020 2019 Utility plant: Electric generation 25 - 60 years $ 1,129 $ 1,133 Electric transmission 50 - 100 years 874 840 Electric distribution 20 - 100 years 1,690 1,669 Electric general and intangible plant 5 - 70 years 182 178 Natural gas distribution 35 - 70 years 421 417 Natural gas general and intangible plant 5 - 70 years 14 14 Common general 5 - 70 years 335 338 Utility plant 4,645 4,589 Accumulated depreciation and amortization (1,673 ) (1,629 ) Utility plant, net 2,972 2,960 Other non-regulated, net of accumulated depreciation and amortization 70 years 2 2 Plant, net 2,974 2,962 Construction work-in-progress 101 113 Property, plant and equipment, net $ 3,075 $ 3,075

Regulatory Matters

Regulatory Matters	3 Months Ended
	Mar. 31, 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. 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. The hearings are scheduled for June 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. 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. The hearings are scheduled for June 2020.

Cash and Cash Equivalents and R

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Supplemental Cash Flow Disclosures (Notes)	3 Months Ended
	Mar. 31, 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 March 31, 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 March 31, 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 March 31, December 31, 2020 2019 Cash and cash equivalents $ 27 $ 27 Restricted cash and cash equivalents included in other current assets 6 5 Total cash and cash equivalents and restricted cash and cash equivalents $ 33 $ 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 March 31, 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 March 31, 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 March 31, December 31, 2020 2019 Cash and cash equivalents $ 121 $ 15 Restricted cash and cash equivalents included in other current assets 12 10 Total cash and cash equivalents and restricted cash and cash equivalents $ 133 $ 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 March 31, 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 March 31, December 31, 2020 2019 Cash and cash equivalents $ 53 $ 30 Restricted cash included in other current assets 5 4 Restricted cash included in other assets 2 2 Total cash and cash equivalents and restricted cash and cash equivalents $ 60 $ 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 March 31, 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 March 31, 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 March 31 December 31 2020 2019 Cash and cash equivalents $ 100 $ 288 Restricted cash and cash equivalents in other current assets 28 43 Total cash and cash equivalents and restricted cash and cash equivalents $ 128 $ 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 March 31, 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 March 31, 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 March 31, December 31 2020 2019 Cash and cash equivalents $ 100 $ 287 Restricted cash and cash equivalents in other current assets 28 43 Total cash and cash equivalents and restricted cash and cash equivalents $ 128 $ 330

Recent Financing Transactions

Recent Financing Transactions	3 Months Ended
	Mar. 31, 2020
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. 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 March 31, 2020 was 2.61% while the fixed interest rate as of March 31, 2020 was 3.23% .
Nevada Power Company [Member]
Debt Instrument [Line Items]
Recent Financing Transactions	Recent Financing Transactions Long-Term Debt 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.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 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 Ended March 31, 2020 2019 Federal statutory income tax rate 21 % 21 % Income tax credits (46 ) (29 ) State income tax, net of federal income tax benefit — (17 ) Income tax effect of foreign income (3 ) (3 ) Effects of ratemaking (8 ) (3 ) Equity income (1 ) (1 ) Other, net 1 2 Effective income tax rate (36 )% (30 )% 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 three-month periods ended March 31, 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 Ended March 31, 2020 2019 Federal statutory income tax rate 21 % 21 % State income tax, net of federal income tax benefit 3 3 Federal income tax credits (11 ) (4 ) Effects of ratemaking (2 ) (1 ) Amortization of excess deferred income taxes (20 ) — Effective income tax rate (9 )% 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 three-month periods ended March 31, 2020 and 2019, PacifiCorp made net cash payments for federal and state income tax to BHE totaling $26 million and $- 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 Ended March 31, 2020 2019 Federal statutory income tax rate 21 % 21 % Effects of ratemaking (8 ) — Other (2 ) — Effective income tax rate 11 % 21 % 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 Ended March 31, 2020 2019 Federal statutory income tax rate 21 % 21 % Income tax credits (430 ) (113 ) State income tax, net of federal income tax benefit (28 ) (21 ) Effects of ratemaking (3 ) (8 ) Other, net 1 (1 ) Effective income tax rate (439 )% (122 )% Income tax credits relate primarily to 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 . MidAmerican Energy made net cash payments for income tax to BHE totaling $46 million and $- million for the three-month periods ended March 31, 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 Ended March 31, 2020 2019 Federal statutory income tax rate 21 % 21 % Income tax credits (463 ) (118 ) State income tax, net of federal income tax benefit (31 ) (22 ) Effects of ratemaking (3 ) (9 ) Other, net (1 ) (1 ) Effective income tax rate (477 )% (129 )% 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 . MidAmerican Funding made net cash payments for income tax to BHE totaling $47 million and $- million for the three-month period ended March 31, 2020 and 2019 , respectively.

Employee Benefit Plans

Employee Benefit Plans	3 Months Ended
	Mar. 31, 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 Ended March 31, 2020 2019 Pension: Service cost $ 3 $ 4 Interest cost 23 27 Expected return on plan assets (35 ) (38 ) Net amortization 9 9 Net periodic benefit cost $ — $ 2 Other postretirement: Service cost $ 1 $ 2 Interest cost 6 6 Expected return on plan assets (9 ) (10 ) Net amortization (1 ) (2 ) Net periodic benefit credit $ (3 ) $ (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 March 31, 2020 , $3 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 Ended March 31, 2020 2019 Service cost $ 4 $ 4 Interest cost 10 13 Expected return on plan assets (25 ) (25 ) Net amortization 10 9 Net periodic benefit (credit) cost $ (1 ) $ 1 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 March 31, 2020 , £11 million , or $14 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 Ended March 31, 2020 2019 Pension: Service cost $ — $ — Interest cost 9 11 Expected return on plan assets (14 ) (17 ) Net amortization 5 3 Net periodic benefit cost (credit) $ — $ (3 ) Other postretirement: Service cost $ — $ — Interest cost 3 3 Expected return on plan assets (4 ) (5 ) Net amortization — — Net periodic benefit credit $ (1 ) $ (2 ) 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 March 31, 2020 , $1 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 Ended March 31, 2020 2019 Pension: Service cost $ 1 $ 2 Interest cost 6 7 Expected return on plan assets (10 ) (10 ) Net periodic benefit credit $ (3 ) $ (1 ) Other postretirement: Service cost $ 1 $ 1 Interest cost 2 2 Expected return on plan assets (3 ) (3 ) Net amortization (1 ) (1 ) Net periodic benefit credit $ (1 ) $ (1 ) 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 March 31, 2020 , $2 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 5 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 March 31, 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 March 31, 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 8 8 Other Postretirement Plans: Other long-term liabilities 7 7

Risk Management and Hedging Act

Risk Management and Hedging Activities	3 Months Ended
	Mar. 31, 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, assess, manage, mitigate, monitor 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 March 31, 2020 Not designated as hedging contracts (1) : Commodity assets $ 10 $ 4 $ 2 $ — $ 16 Commodity liabilities (4 ) — (50 ) (47 ) (101 ) Total 6 4 (48 ) (47 ) (85 ) Total derivatives 6 4 (48 ) (47 ) (85 ) Cash collateral (payable) receivable (1 ) — 21 28 48 Total derivatives - net basis $ 5 $ 4 $ (27 ) $ (19 ) $ (37 ) 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 March 31, 2020 and December 31, 2019 , a regulatory asset of $84 million and $62 million , respectively, was recorded related to the net derivative liability of $85 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 Ended March 31, 2020 2019 Beginning balance $ 62 $ 96 Changes in fair value 34 (54 ) Net losses reclassified to operating revenue 8 (22 ) Net (losses) gains reclassified to cost of fuel and energy (20 ) 58 Ending balance $ 84 $ 78 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 March 31, December 31, Measure 2020 2019 Electricity sales, net Megawatt hours (1 ) (2 ) Natural gas purchases Decatherms 129 129 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 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 March 31, 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 $95 million and $80 million as of March 31, 2020 and December 31, 2019 , respectively, for which PacifiCorp had posted collateral of $49 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 March 31, 2020 and December 31, 2019 , PacifiCorp would have been required to post $37 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	3 Months Ended
	Mar. 31, 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 March 31, 2020 Assets: Commodity derivatives $ 1 $ 38 $ 105 $ (20 ) $ 124 Interest rate derivatives — 5 51 — 56 Mortgage loans held for sale — 1,183 — — 1,183 Money market mutual funds (2) 1,750 — — — 1,750 Debt securities: United States government obligations 154 — — — 154 International government obligations — 4 — — 4 Corporate obligations — 66 — — 66 Municipal obligations — 3 — — 3 Agency, asset and mortgage-backed obligations — 1 — — 1 Equity securities: United States companies 300 — — — 300 International companies 1,185 — — — 1,185 Investment funds 172 — — — 172 $ 3,562 $ 1,300 $ 156 $ (20 ) $ 4,998 Liabilities: Commodity derivatives $ (3 ) $ (167 ) $ (53 ) $ 112 $ (111 ) Interest rate derivatives (4 ) (65 ) (6 ) — (75 ) $ (7 ) $ (232 ) $ (59 ) $ 112 $ (186 ) 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 $92 million and $79 million as of March 31, 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 Ended March 31, Interest Commodity Rate Derivatives Derivatives 2020: Beginning balance $ 97 $ 14 Changes included in earnings (3 ) 72 Changes in fair value recognized in net regulatory assets (40 ) — Purchases 2 — Settlements (4 ) (41 ) Ending balance $ 52 $ 45 2019: Beginning balance $ 99 $ 10 Changes included in earnings (3 ) 53 Changes in fair value recognized in net regulatory assets (11 ) — Purchases 1 — Settlements — (45 ) Ending balance $ 86 $ 18 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 March 31, 2020 As of December 31, 2019 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 41,495 $ 47,220 $ 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 March 31, 2020 Assets: Commodity derivatives $ — $ 16 $ — $ (7 ) $ 9 Money market mutual funds (2) 37 — — — 37 Investment funds 25 — — — 25 $ 62 $ 16 $ — $ (7 ) $ 71 Liabilities - Commodity derivatives $ — $ (101 ) $ — $ 55 $ (46 ) 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 $48 million and $47 million as of March 31, 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 March 31, 2020 As of December 31, 2019 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 7,659 $ 9,042 $ 7,658 $ 9,280
MidAmerican Energy Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements	air 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 March 31, 2020: Assets: Commodity derivatives $ 1 $ — $ 1 $ (1 ) $ 1 Money market mutual funds (2) 46 — — — 46 Debt securities: United States government obligations 154 — — — 154 International government obligations — 4 — — 4 Corporate obligations — 66 — — 66 Municipal obligations — 3 — — 3 Agency, asset and mortgage-backed obligations — 1 — — 1 Equity securities: United States companies 300 — — — 300 International companies 9 — — — 9 Investment funds 18 — — — 18 $ 528 $ 74 $ 1 $ (1 ) $ 602 Liabilities - commodity derivatives $ — $ (8 ) $ (1 ) $ 1 $ (8 ) 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 March 31, 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 March 31, 2020 As of December 31, 2019 Carrying Value Fair Value Carrying Value Fair Value Long-term debt $ 7,209 $ 8,282 $ 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 6 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 March 31, 2020 As of December 31, 2019 Carrying Value Fair Value Carrying Value Fair Value Long-term debt $ 7,449 $ 8,590 $ 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 March 31, 2020 Assets: Money market mutual funds (1) $ 117 $ — $ — $ 117 Investment funds 2 — — 2 $ 119 $ — $ — $ 119 Liabilities - commodity derivatives $ — $ — $ (38 ) $ (38 ) 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 March 31, 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 Ended March 31, 2020 2019 Beginning balance $ (8 ) 3 Changes in fair value recognized in regulatory assets (31 ) (9 ) Settlements 1 1 Ending balance $ (38 ) $ (5 ) 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 March 31, 2020 As of December 31, 2019 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 2,495 $ 2,837 $ 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 March 31, 2020 Assets - money market mutual funds (1) $ 25 $ — $ — $ 25 Liabilities - commodity derivatives $ — $ — $ (9 ) $ (9 ) 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 March 31, 2020 As of December 31, 2019 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 1,135 $ 1,226 $ 1,135 $ 1,258

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2020
Loss Contingencies [Line Items]
Commitments and Contingencies	Commitments and Contingencies Construction Commitments During the three-month period ended March 31, 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 three-month period ended March 31, 2020 , MidAmerican Energy entered into non-cancelable easements with minimum payment commitments totaling $95 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 three-month period ended March 31, 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. As of March 31, 2020 , the Company's consolidated balance sheet includes $1.0 billion of property, plant and equipment, net and $0.8 billion of non-recourse project debt related to Topaz. 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. As of March 31, 2020 , the Company's equity investment in Agua Caliente totals $76 million and the project has $0.7 billion of non-recourse project debt owed to the United States Department of Energy. The PG&E Bankruptcy Filing is an event of default under the Topaz PPA ("PPA Default"). PG&E has paid in full all amounts invoiced to date for post-petition energy deliveries for both Topaz and Agua Caliente. PG&E has not paid for the power delivered from January 1 through January 28, 2019. The Company continues to perform on its obligations and deliver renewable energy to the PG&E Utility, and PG&E has publicly stated it will pay suppliers in full under normal terms for post-petition goods and services received. The Company maintains 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 has occurred under the Topaz indenture. In July 2019, the California Governor signed California Assembly Bill 1054 ("AB 1054") into law. AB 1054 is comprehensive legislation addressing wildfire risk in the state of California that, among other items, authorizes a wildfire fund which would operate as an insurance fund to support the creditworthiness of electrical utilities, if certain utilities, including PG&E, participate by making the required contributions, among other things. In July 2019, PG&E notified the California Public Utilities Commission ("CPUC") of its intent to participate in the insurance fund and such participation requires, among other items, PG&E to exit bankruptcy by June 30, 2020. The Company believes it is more likely than not that no impairment exists and current debt obligations will be met, as post-petition contractual revenue payments are expected to be paid by PG&E Utility to the Topaz and Agua Caliente projects. The Company will continue to monitor the situation, including continued receipt of future PG&E payments and the future risk of the PPAs being rejected or modified through the bankruptcy process. 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. Over the past two years, the KRRC has been supplementing the application with additional information about its financial, technical, and legal capacity to become the licensee. In July 2019, the KRRC provided the FERC with additional information about its financial capacity to become a licensee, including updated cost estimates, and its insurance, bonding and liability transfer package. The FERC is evaluating the KRRC's information and the proposed license transfer. The KRRC will continue to refine its insurance, bonding and liability transfer package, and PacifiCorp will review the KRRC's capacity to fulfill its indemnity obligation under the KHSA. If certain conditions in the amended KHSA are not satisfied (e.g., inadequate funding or inability of KRRC to satisfy its indemnification obligation) and the license does not transfer to the KRRC, PacifiCorp will resume relicensing with the FERC. 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. Over the past two years, the KRRC has been supplementing the application with additional information about its financial, technical, and legal capacity to become the licensee. In July 2019 and February 2020, the KRRC provided the FERC with additional information about its financial capacity to become a licensee, including updated cost estimates, and further information about its insurance, bonding and liability transfer package. The FERC is evaluating the KRRC's information and the proposed license transfer. The KRRC will continue to refine its insurance, bonding and liability transfer package, and PacifiCorp will review the KRRC's capacity to fulfill its indemnity obligation under the KHSA. If certain conditions in the amended KHSA are not satisfied (e.g., inadequate funding or inability of KRRC to satisfy its indemnification obligation) and the license does not transfer to the KRRC, PacifiCorp will resume relicensing with the FERC. 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 three-month period ended March 31, 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 three-month period ended March 31, 2020 , MidAmerican Energy entered into non-cancelable easements with minimum payment commitments totaling $95 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 three-month period ended March 31, 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 base ROE effective January 2015. Prior to September 2016, the rates in effect were based on a 12.38% return on equity ("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 an 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. The order indicated no refunds were necessary for the period February 2015 through September 2016. The order has been appealed, and as of March 31, 2020 , MidAmerican Energy has accrued a $16 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 7 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)	3 Months Ended
	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customer	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 customer class and line of business, including a reconciliation to the Company's reportable segment information included in Note 12 (in millions): For the Three-Month Period Ended March 31, 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 $ 1,122 $ 410 $ 529 $ — $ — $ — $ — $ — $ 2,061 Retail gas — 187 47 — — — — — 234 Wholesale — 64 14 — — — — (1 ) 77 Transmission and distribution 22 15 23 233 — 169 — — 462 Interstate pipeline — — — — 400 — — (48 ) 352 Other 26 — 1 — — — — — 27 Total Regulated 1,170 676 614 233 400 169 — (49 ) 3,213 Nonregulated — 6 1 7 — 3 159 127 303 Total Customer Revenue 1,170 682 615 240 400 172 159 78 3,516 Other revenue 36 4 7 26 1 — 19 25 118 Total $ 1,206 $ 686 $ 622 $ 266 $ 401 $ 172 $ 178 $ 103 $ 3,634 For the Three-Month Period Ended March 31, 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 $ 1,186 $ 443 $ 527 $ — $ — $ — $ — $ — $ 2,156 Retail gas — 260 37 — — — — — 297 Wholesale 28 110 18 — — — — — 156 Transmission and distribution 25 16 24 230 — 167 — — 462 Interstate pipeline — — — — 372 — — (37 ) 335 Other — — 1 — — — — — 1 Total Regulated 1,239 829 607 230 372 167 — (37 ) 3,407 Nonregulated — 6 — 8 — 1 126 139 280 Total Customer Revenue 1,239 835 607 238 372 168 126 102 3,687 Other revenue (2) 20 7 7 25 (1 ) — 41 39 138 Total $ 1,259 $ 842 $ 614 $ 263 $ 371 $ 168 $ 167 $ 141 $ 3,825 (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 Ended March 31, 2020 2019 Customer Revenue: Brokerage $ 777 $ 711 Franchise 16 14 Total Customer Revenue 793 725 Other revenue 100 60 Total $ 893 $ 785 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 March 31, 2020 , by reportable segment (in millions): Performance obligations expected to be satisfied: Less than 12 months More than 12 months Total BHE Pipeline Group $ 888 $ 4,882 $ 5,770
PacifiCorp [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customer	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 Ended March 31, 2020 2019 Customer Revenue: Retail: Residential $ 460 $ 489 Commercial 358 360 Industrial 277 292 Other retail 27 29 Total retail 1,122 1,170 Wholesale (1) — 28 Transmission 22 25 Other Customer Revenue 26 16 Total Customer Revenue 1,170 1,239 Other revenue 36 20 Total operating revenue $ 1,206 $ 1,259 (1) Includes net payments to counterparties for the financial settlement of certain non-derivative forward contracts for energy sales.
Nevada Power Company [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customer	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 Ended March 31, 2020 2019 Customer Revenue: Retail: Residential $ 193 $ 200 Commercial 94 90 Industrial 70 70 Other 3 5 Total fully bundled 360 365 Distribution only service 7 7 Total retail 367 372 Wholesale, transmission and other 16 17 Total Customer Revenue 383 389 Other revenue 6 6 Total revenue $ 389 $ 395
Sierra Pacific Power Company [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customer	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 10 (in millions): Three-Month Periods Ended March 31, 2020 2019 Electric Natural Gas Total Electric Natural Gas Total Customer Revenue: Retail: Residential $ 69 $ 30 $ 99 $ 68 $ 24 $ 92 Commercial 57 13 70 54 10 64 Industrial 41 4 45 39 3 42 Other 1 — 1 2 — 2 Total fully bundled 168 47 215 163 37 200 Distribution only service 1 — 1 1 — 1 Total retail 169 47 216 164 37 201 Wholesale, transmission and other 14 — 14 17 — 17 Total Customer Revenue 183 47 230 181 37 218 Other revenue 1 1 2 1 — 1 Total revenue $ 184 $ 48 $ 232 $ 182 $ 37 $ 219
MidAmerican Energy Company [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customer	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 9 , (in millions): For the Three-Month Periods Ended March 31, 2020 2019 Electric Natural Gas Other Total Electric Natural Gas Other Total Customer Revenue: Retail: Residential $ 148 $ 128 $ — $ 276 $ 171 $ 175 $ — $ 346 Commercial 70 43 — 113 75 66 — 141 Industrial 163 4 — 167 163 6 — 169 Natural gas transportation services — 11 — 11 — 12 — 12 Other retail (1) 29 — — 29 35 1 — 36 Total retail 410 186 — 596 444 260 — 704 Wholesale 42 22 — 64 76 34 — 110 Multi-value transmission projects 16 — — 16 16 — — 16 Other Customer Revenue — — 1 1 — — 5 5 Total Customer Revenue 468 208 1 677 536 294 5 835 Other revenue 3 1 — 4 6 1 — 7 Total operating revenue $ 471 $ 209 $ 1 $ 681 $ 542 $ 295 $ 5 $ 842 (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 Contracts with Customer	Revenue from Contracts with Customers Refer to Note 8 of MidAmerican Energy's Notes to Financial Statements. Additionally, MidAmerican Funding had other Accounting Standards Codification Topic 606 revenue of $5 million and $- million for the three-month periods ended March 31, 2020 and 2019 , respectively.

Components of Accumulated Other

Components of Accumulated Other Comprehensive Loss, Net	3 Months Ended
	Mar. 31, 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 (32 ) 155 (8 ) 115 Balance, March 31, 2019 $ (390 ) $ (1,468 ) $ 28 $ (1,830 ) Balance, December 31, 2019 $ (417 ) $ (1,296 ) $ 7 $ (1,706 ) Other comprehensive income (loss) 34 (548 ) (33 ) (547 ) Balance, March 31, 2020 $ (383 ) $ (1,844 ) $ (26 ) $ (2,253 )

Segment Information

Segment Information	3 Months Ended
	Mar. 31, 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 Ended March 31, 2020 2019 Operating revenue: PacifiCorp $ 1,206 $ 1,259 MidAmerican Funding 686 842 NV Energy 622 614 Northern Powergrid 266 263 BHE Pipeline Group 401 371 BHE Transmission 172 168 BHE Renewables 178 167 HomeServices 893 785 BHE and Other (1) 103 141 Total operating revenue $ 4,527 $ 4,610 Depreciation and amortization: PacifiCorp $ 252 $ 205 MidAmerican Funding 176 177 NV Energy 124 120 Northern Powergrid 63 63 BHE Pipeline Group 64 28 BHE Transmission 60 58 BHE Renewables 71 70 HomeServices 11 13 BHE and Other (1) — (1 ) Total depreciation and amortization $ 821 $ 733 Three-Month Periods Ended March 31, 2020 2019 Operating income: PacifiCorp $ 234 $ 284 MidAmerican Funding 102 116 NV Energy 79 84 Northern Powergrid 132 129 BHE Pipeline Group 249 243 BHE Transmission 76 76 BHE Renewables 17 18 HomeServices 20 (21 ) BHE and Other (1) 10 (10 ) Total operating income 919 919 Interest expense (483 ) (477 ) Capitalized interest 17 16 Allowance for equity funds 34 32 Interest and dividend income 20 30 Gains (losses) on marketable securities, net 27 (68 ) Other, net (27 ) 35 Total income before income tax expense and equity income $ 507 $ 487 Interest expense: PacifiCorp $ 102 $ 96 MidAmerican Funding 81 75 NV Energy 58 62 Northern Powergrid 32 34 BHE Pipeline Group 14 12 BHE Transmission 38 39 BHE Renewables 42 44 HomeServices 5 7 BHE and Other (1) 111 108 Total interest expense $ 483 $ 477 Operating revenue by country: United States $ 4,089 $ 4,177 United Kingdom 266 263 Canada 171 168 Philippines and other 1 2 Total operating revenue by country $ 4,527 $ 4,610 Income before income tax benefit and equity loss by country: United States $ 354 $ 336 United Kingdom 109 103 Canada 40 40 Philippines and other 4 8 Total income before income tax benefit and equity loss by country $ 507 $ 487 As of March 31, December 31, 2020 2019 Assets: PacifiCorp $ 24,953 $ 24,861 MidAmerican Funding 22,693 22,664 NV Energy 14,283 14,128 Northern Powergrid 7,686 8,385 BHE Pipeline Group 6,127 6,100 BHE Transmission 8,186 8,776 BHE Renewables 10,139 9,961 HomeServices 4,144 3,846 BHE and Other (1) 2,595 1,330 Total assets $ 100,806 $ 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 three-month period ended March 31, 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 — — — (44 ) — (116 ) — — (160 ) March 31, 2020 $ 1,129 $ 2,102 $ 2,369 $ 934 $ 73 $ 1,404 $ 95 $ 1,456 $ 9,562
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 Ended March 31, 2020 2019 Operating revenue: Regulated electric $ 471 $ 542 Regulated natural gas 209 295 Other 1 5 Total operating revenue $ 681 $ 842 Operating income: Regulated electric $ 59 $ 66 Regulated natural gas 39 48 Other — 1 Total operating income 98 115 Interest expense (76 ) (69 ) Allowance for borrowed funds 3 6 Allowance for equity funds 8 15 Other, net (5 ) 20 Income before income tax benefit $ 28 $ 87 As of March 31, December 31, Assets: Regulated electric $ 19,184 $ 19,093 Regulated natural gas 1,407 1,468 Other — 3 Total assets $ 20,591 $ 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 Ended March 31, 2020 2019 Operating revenue: Regulated electric $ 471 $ 542 Regulated natural gas 209 295 Other 6 5 Total operating revenue $ 686 $ 842 Operating income: Regulated electric $ 59 $ 66 Regulated natural gas 39 48 Other 4 2 Total operating income 102 116 Interest expense (81 ) (75 ) Allowance for borrowed funds 3 6 Allowance for equity funds 8 15 Other, net (6 ) 21 Income before income tax benefit $ 26 $ 83 As of March 31, December 31, Assets (1) : Regulated electric $ 20,375 $ 20,284 Regulated natural gas 1,486 1,547 Other 5 9 Total assets $ 21,866 $ 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 Ended March 31, 2020 2019 Operating revenue: Regulated electric $ 184 $ 182 Regulated natural gas 48 37 Total operating revenue $ 232 $ 219 Operating income: Regulated electric $ 33 $ 29 Regulated natural gas 7 8 Total operating income 40 37 Interest expense (14 ) (12 ) Allowance for equity funds 1 1 Other, net 1 2 Income before income tax expense $ 28 $ 28 As of March 31, December 31, 2020 2019 Assets: Regulated electric $ 3,332 $ 3,319 Regulated natural gas 314 308 Other (1) 40 44 Total assets $ 3,686 $ 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)	3 Months Ended
	Mar. 31, 2020
Equity [Abstract]
Stockholders' Equity Note Disclosure [Text Block]	BHE Shareholders' Equity For the three-month periods ended March 31, 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)	3 Months Ended
	Mar. 31, 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 March 31, 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 March 31, 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.

Investments and Restricted Ca_2

Investments and Restricted Cash and Investments (Tables)	3 Months Ended
	Mar. 31, 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 March 31, December 31, 2020 2019 Investments: BYD Company Limited common stock $ 1,176 $ 1,122 Rabbi trusts 364 410 Other 171 187 Total investments 1,711 1,719 Equity method investments: BHE Renewables tax equity investments 3,232 3,130 Electric Transmission Texas, LLC 562 555 Bridger Coal Company 77 81 Other 182 181 Total equity method investments 4,053 3,947 Restricted cash and cash equivalents and investments: Quad Cities Station nuclear decommissioning trust funds 541 599 Other restricted cash and cash equivalents 233 230 Total restricted cash and cash equivalents and investments 774 829 Total investments and restricted cash and cash equivalents and investments $ 6,538 $ 6,495 Reflected as: Current assets $ 245 $ 240 Noncurrent assets 6,293 6,255 Total investments and restricted cash and cash equivalents and investments $ 6,538 $ 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 Ended March 31, 2020 2019 Unrealized gains (losses) recognized on marketable securities still held at the reporting date $ 25 $ (68 ) Net gains recognized on marketable securities sold during the period 2 — Gains (losses) on marketable securities, net $ 27 $ (68 )

Property, Plant and Equipment_2

Property, Plant and Equipment, Net (Tables)	3 Months Ended
	Mar. 31, 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 March 31, December 31, Life 2020 2019 Regulated assets: Utility generation, transmission and distribution systems 5-80 years $ 80,530 $ 81,127 Interstate natural gas pipeline assets 3-80 years 8,181 8,165 88,711 89,292 Accumulated depreciation and amortization (26,414 ) (26,353 ) Regulated assets, net 62,297 62,939 Nonregulated assets: Independent power plants 5-30 years 6,994 6,983 Other assets 3-30 years 1,798 1,834 8,792 8,817 Accumulated depreciation and amortization (2,244 ) (2,183 ) Nonregulated assets, net 6,548 6,634 Net operating assets 68,845 69,573 Construction work-in-progress 3,819 3,732 Property, plant and equipment, net $ 72,664 $ 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 March 31, December 31, Depreciable Life 2020 2019 Utility plant in service, net: Generation 20-70 years $ 15,776 $ 15,687 Transmission 52-75 years 2,138 2,124 Electric distribution 20-75 years 4,131 4,095 Natural gas distribution 29-75 years 1,833 1,820 Utility plant in service 23,878 23,726 Accumulated depreciation and amortization (6,233 ) (6,139 ) Utility plant in service, net 17,645 17,587 Nonregulated property, net: Nonregulated property gross 20-50 years 7 7 Accumulated depreciation and amortization (1 ) (1 ) Nonregulated property, net 6 6 17,651 17,593 Construction work-in-progress 851 782 Property, plant and equipment, net $ 18,502 $ 18,375
PacifiCorp [Member]
Property, Plant and Equipment [Line Items]
Public Utility Property, Plant, and Equipment	As of March 31, December 31, Depreciable Life 2020 2019 Utility Plant: Generation 14 - 67 years $ 12,468 $ 12,509 Transmission 58 - 75 years 6,513 6,482 Distribution 20 - 70 years 7,359 7,307 Intangible plant (1) 5 - 75 years 1,018 1,016 Other 5 - 60 years 1,463 1,449 Utility plant in service 28,821 28,763 Accumulated depreciation and amortization (9,739 ) (9,803 ) Utility plant in-service, net 19,082 18,960 Other non-regulated, net of accumulated depreciation and amortization 59 years 9 10 Plant, net 19,091 18,970 Construction work-in-progress 2,008 2,003 Property, plant and equipment, net $ 21,099 $ 20,973 (1) Computer software costs included in intangible plant are initially assigned a depreciable life of 5 to 10 years. In March 2020, PacifiCorp acquired wind turbines from BHE Wind, LLC, an indirect wholly owned subsidiary of BHE, for $47 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 March 31, December 31, 2020 2019 Utility plant: Generation 30 - 55 years $ 3,551 $ 3,541 Transmission 45 - 70 years 1,456 1,444 Distribution 20 - 65 years 3,603 3,567 General and intangible plant 5 - 65 years 744 741 Utility plant 9,354 9,293 Accumulated depreciation and amortization (3,020 ) (2,951 ) Utility plant, net 6,334 6,342 Other non-regulated, net of accumulated depreciation and amortization 45 years 1 1 Plant, net 6,335 6,343 Construction work-in-progress 250 195 Property, plant and equipment, net $ 6,585 $ 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 March 31, December 31, 2020 2019 Utility plant: Electric generation 25 - 60 years $ 1,129 $ 1,133 Electric transmission 50 - 100 years 874 840 Electric distribution 20 - 100 years 1,690 1,669 Electric general and intangible plant 5 - 70 years 182 178 Natural gas distribution 35 - 70 years 421 417 Natural gas general and intangible plant 5 - 70 years 14 14 Common general 5 - 70 years 335 338 Utility plant 4,645 4,589 Accumulated depreciation and amortization (1,673 ) (1,629 ) Utility plant, net 2,972 2,960 Other non-regulated, net of accumulated depreciation and amortization 70 years 2 2 Plant, net 2,974 2,962 Construction work-in-progress 101 113 Property, plant and equipment, net $ 3,075 $ 3,075

Cash and Cash Equivalents and_3

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Supplemental Cash Flow Disclosure (Tables)	3 Months Ended
	Mar. 31, 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 March 31, 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 March 31, 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 March 31, December 31, 2020 2019 Cash and cash equivalents $ 2,071 $ 1,040 Restricted cash and cash equivalents 217 212 Investments and restricted cash and cash equivalents and investments 16 16 Total cash and cash equivalents and restricted cash and cash equivalents $ 2,304 $ 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 March 31, 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 March 31, December 31, 2020 2019 Cash and cash equivalents $ 27 $ 27 Restricted cash and cash equivalents included in other current assets 6 5 Total cash and cash equivalents and restricted cash and cash equivalents $ 33 $ 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 March 31, 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 March 31, December 31, 2020 2019 Cash and cash equivalents $ 121 $ 15 Restricted cash and cash equivalents included in other current assets 12 10 Total cash and cash equivalents and restricted cash and cash equivalents $ 133 $ 25
PacifiCorp [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	As of March 31, December 31, 2020 2019 Cash and cash equivalents $ 53 $ 30 Restricted cash included in other current assets 5 4 Restricted cash included in other assets 2 2 Total cash and cash equivalents and restricted cash and cash equivalents $ 60 $ 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 March 31, 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 March 31 December 31 2020 2019 Cash and cash equivalents $ 100 $ 288 Restricted cash and cash equivalents in other current assets 28 43 Total cash and cash equivalents and restricted cash and cash equivalents $ 128 $ 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 March 31, 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 March 31, December 31 2020 2019 Cash and cash equivalents $ 100 $ 287 Restricted cash and cash equivalents in other current assets 28 43 Total cash and cash equivalents and restricted cash and cash equivalents $ 128 $ 330

Income Taxes (Tables)

Income Taxes (Tables)	3 Months Ended
	Mar. 31, 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 Ended March 31, 2020 2019 Federal statutory income tax rate 21 % 21 % Income tax credits (46 ) (29 ) State income tax, net of federal income tax benefit — (17 ) Income tax effect of foreign income (3 ) (3 ) Effects of ratemaking (8 ) (3 ) Equity income (1 ) (1 ) Other, net 1 2 Effective income tax rate (36 )% (30 )% 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 three-month periods ended March 31, 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 Ended March 31, 2020 2019 Federal statutory income tax rate 21 % 21 % Income tax credits (46 ) (29 ) State income tax, net of federal income tax benefit — (17 ) Income tax effect of foreign income (3 ) (3 ) Effects of ratemaking (8 ) (3 ) Equity income (1 ) (1 ) Other, net 1 2 Effective income tax rate (36 )% (30 )%
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 Ended March 31, 2020 2019 Federal statutory income tax rate 21 % 21 % Effects of ratemaking (8 ) — Other (2 ) — Effective income tax rate 11 % 21 % 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 Ended March 31, 2020 2019 Federal statutory income tax rate 21 % 21 % Effects of ratemaking (8 ) — Other (2 ) — Effective income tax rate 11 % 21 %
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 Ended March 31, 2020 2019 Federal statutory income tax rate 21 % 21 % State income tax, net of federal income tax benefit 3 3 Federal income tax credits (11 ) (4 ) Effects of ratemaking (2 ) (1 ) Amortization of excess deferred income taxes (20 ) — Effective income tax rate (9 )% 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 three-month periods ended March 31, 2020 and 2019, PacifiCorp made net cash payments for federal and state income tax to BHE totaling $26 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 expense is as follows: Three-Month Periods Ended March 31, 2020 2019 Federal statutory income tax rate 21 % 21 % State income tax, net of federal income tax benefit 3 3 Federal income tax credits (11 ) (4 ) Effects of ratemaking (2 ) (1 ) Amortization of excess deferred income taxes (20 ) — Effective income tax rate (9 )% 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 Ended March 31, 2020 2019 Federal statutory income tax rate 21 % 21 % Income tax credits (430 ) (113 ) State income tax, net of federal income tax benefit (28 ) (21 ) Effects of ratemaking (3 ) (8 ) Other, net 1 (1 ) Effective income tax rate (439 )% (122 )% Income tax credits relate primarily to 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 . MidAmerican Energy made net cash payments for income tax to BHE totaling $46 million and $- million for the three-month periods ended March 31, 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 Ended March 31, 2020 2019 Federal statutory income tax rate 21 % 21 % Income tax credits (430 ) (113 ) State income tax, net of federal income tax benefit (28 ) (21 ) Effects of ratemaking (3 ) (8 ) Other, net 1 (1 ) Effective income tax rate (439 )% (122 )%
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 Ended March 31, 2020 2019 Federal statutory income tax rate 21 % 21 % Income tax credits (463 ) (118 ) State income tax, net of federal income tax benefit (31 ) (22 ) Effects of ratemaking (3 ) (9 ) Other, net (1 ) (1 ) Effective income tax rate (477 )% (129 )% 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 . MidAmerican Funding made net cash payments for income tax to BHE totaling $47 million and $- million for the three-month period ended March 31, 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 Ended March 31, 2020 2019 Federal statutory income tax rate 21 % 21 % Income tax credits (463 ) (118 ) State income tax, net of federal income tax benefit (31 ) (22 ) Effects of ratemaking (3 ) (9 ) Other, net (1 ) (1 ) Effective income tax rate (477 )% (129 )%

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	3 Months Ended
	Mar. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Schedule of Defined Benefit Plans Disclosures	Foreign Operations Net periodic benefit (credit) cost for the United Kingdom pension plan included the following components (in millions): Three-Month Periods Ended March 31, 2020 2019 Service cost $ 4 $ 4 Interest cost 10 13 Expected return on plan assets (25 ) (25 ) Net amortization 10 9 Net periodic benefit (credit) cost $ (1 ) $ 1 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 Ended March 31, 2020 2019 Pension: Service cost $ 3 $ 4 Interest cost 23 27 Expected return on plan assets (35 ) (38 ) Net amortization 9 9 Net periodic benefit cost $ — $ 2 Other postretirement: Service cost $ 1 $ 2 Interest cost 6 6 Expected return on plan assets (9 ) (10 ) Net amortization (1 ) (2 ) Net periodic benefit credit $ (3 ) $ (4 )
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 Ended March 31, 2020 2019 Pension: Service cost $ — $ — Interest cost 9 11 Expected return on plan assets (14 ) (17 ) Net amortization 5 3 Net periodic benefit cost (credit) $ — $ (3 ) Other postretirement: Service cost $ — $ — Interest cost 3 3 Expected return on plan assets (4 ) (5 ) Net amortization — — Net periodic benefit credit $ (1 ) $ (2 )
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 Ended March 31, 2020 2019 Pension: Service cost $ 1 $ 2 Interest cost 6 7 Expected return on plan assets (10 ) (10 ) Net periodic benefit credit $ (3 ) $ (1 ) Other postretirement: Service cost $ 1 $ 1 Interest cost 2 2 Expected return on plan assets (3 ) (3 ) Net amortization (1 ) (1 ) Net periodic benefit credit $ (1 ) $ (1 )
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 March 31, 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 March 31, 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 8 8 Other Postretirement Plans: Other long-term liabilities 7 7

Risk Management and Hedging A_2

Risk Management and Hedging Activities (Tables) - PacifiCorp [Member]	3 Months Ended
	Mar. 31, 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 March 31, 2020 Not designated as hedging contracts (1) : Commodity assets $ 10 $ 4 $ 2 $ — $ 16 Commodity liabilities (4 ) — (50 ) (47 ) (101 ) Total 6 4 (48 ) (47 ) (85 ) Total derivatives 6 4 (48 ) (47 ) (85 ) Cash collateral (payable) receivable (1 ) — 21 28 48 Total derivatives - net basis $ 5 $ 4 $ (27 ) $ (19 ) $ (37 ) 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 March 31, 2020 and December 31, 2019 , a regulatory asset of $84 million and $62 million , respectively, was recorded related to the net derivative liability of $85 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 Ended March 31, 2020 2019 Beginning balance $ 62 $ 96 Changes in fair value 34 (54 ) Net losses reclassified to operating revenue 8 (22 ) Net (losses) gains reclassified to cost of fuel and energy (20 ) 58 Ending balance $ 84 $ 78
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 March 31, December 31, Measure 2020 2019 Electricity sales, net Megawatt hours (1 ) (2 ) Natural gas purchases Decatherms 129 129

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 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 March 31, 2020 Assets: Commodity derivatives $ 1 $ 38 $ 105 $ (20 ) $ 124 Interest rate derivatives — 5 51 — 56 Mortgage loans held for sale — 1,183 — — 1,183 Money market mutual funds (2) 1,750 — — — 1,750 Debt securities: United States government obligations 154 — — — 154 International government obligations — 4 — — 4 Corporate obligations — 66 — — 66 Municipal obligations — 3 — — 3 Agency, asset and mortgage-backed obligations — 1 — — 1 Equity securities: United States companies 300 — — — 300 International companies 1,185 — — — 1,185 Investment funds 172 — — — 172 $ 3,562 $ 1,300 $ 156 $ (20 ) $ 4,998 Liabilities: Commodity derivatives $ (3 ) $ (167 ) $ (53 ) $ 112 $ (111 ) Interest rate derivatives (4 ) (65 ) (6 ) — (75 ) $ (7 ) $ (232 ) $ (59 ) $ 112 $ (186 ) 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 $92 million and $79 million as of March 31, 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 Ended March 31, Interest Commodity Rate Derivatives Derivatives 2020: Beginning balance $ 97 $ 14 Changes included in earnings (3 ) 72 Changes in fair value recognized in net regulatory assets (40 ) — Purchases 2 — Settlements (4 ) (41 ) Ending balance $ 52 $ 45 2019: Beginning balance $ 99 $ 10 Changes included in earnings (3 ) 53 Changes in fair value recognized in net regulatory assets (11 ) — Purchases 1 — Settlements — (45 ) Ending balance $ 86 $ 18
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 March 31, 2020 As of December 31, 2019 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 41,495 $ 47,220 $ 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 March 31, 2020 Assets: Money market mutual funds (1) $ 117 $ — $ — $ 117 Investment funds 2 — — 2 $ 119 $ — $ — $ 119 Liabilities - commodity derivatives $ — $ — $ (38 ) $ (38 ) 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 Ended March 31, 2020 2019 Beginning balance $ (8 ) 3 Changes in fair value recognized in regulatory assets (31 ) (9 ) Settlements 1 1 Ending balance $ (38 ) $ (5 )
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 March 31, 2020 As of December 31, 2019 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 2,495 $ 2,837 $ 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 March 31, 2020 Assets: Commodity derivatives $ — $ 16 $ — $ (7 ) $ 9 Money market mutual funds (2) 37 — — — 37 Investment funds 25 — — — 25 $ 62 $ 16 $ — $ (7 ) $ 71 Liabilities - Commodity derivatives $ — $ (101 ) $ — $ 55 $ (46 ) 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 $48 million and $47 million as of March 31, 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 March 31, 2020 As of December 31, 2019 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 7,659 $ 9,042 $ 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 March 31, 2020: Assets: Commodity derivatives $ 1 $ — $ 1 $ (1 ) $ 1 Money market mutual funds (2) 46 — — — 46 Debt securities: United States government obligations 154 — — — 154 International government obligations — 4 — — 4 Corporate obligations — 66 — — 66 Municipal obligations — 3 — — 3 Agency, asset and mortgage-backed obligations — 1 — — 1 Equity securities: United States companies 300 — — — 300 International companies 9 — — — 9 Investment funds 18 — — — 18 $ 528 $ 74 $ 1 $ (1 ) $ 602 Liabilities - commodity derivatives $ — $ (8 ) $ (1 ) $ 1 $ (8 ) 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 March 31, 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 March 31, 2020 As of December 31, 2019 Carrying Value Fair Value Carrying Value Fair Value Long-term debt $ 7,209 $ 8,282 $ 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 March 31, 2020 As of December 31, 2019 Carrying Value Fair Value Carrying Value Fair Value Long-term debt $ 7,449 $ 8,590 $ 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 March 31, 2020 Assets - money market mutual funds (1) $ 25 $ — $ — $ 25 Liabilities - commodity derivatives $ — $ — $ (9 ) $ (9 ) 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 March 31, 2020 As of December 31, 2019 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 1,135 $ 1,226 $ 1,135 $ 1,258

Revenue from Contracts with C_2

Revenue from Contracts with Customers Revenue from Contracts with Customers (Tables)	3 Months Ended
	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
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 customer class and line of business, including a reconciliation to the Company's reportable segment information included in Note 12 (in millions): For the Three-Month Period Ended March 31, 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 $ 1,122 $ 410 $ 529 $ — $ — $ — $ — $ — $ 2,061 Retail gas — 187 47 — — — — — 234 Wholesale — 64 14 — — — — (1 ) 77 Transmission and distribution 22 15 23 233 — 169 — — 462 Interstate pipeline — — — — 400 — — (48 ) 352 Other 26 — 1 — — — — — 27 Total Regulated 1,170 676 614 233 400 169 — (49 ) 3,213 Nonregulated — 6 1 7 — 3 159 127 303 Total Customer Revenue 1,170 682 615 240 400 172 159 78 3,516 Other revenue 36 4 7 26 1 — 19 25 118 Total $ 1,206 $ 686 $ 622 $ 266 $ 401 $ 172 $ 178 $ 103 $ 3,634 For the Three-Month Period Ended March 31, 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 $ 1,186 $ 443 $ 527 $ — $ — $ — $ — $ — $ 2,156 Retail gas — 260 37 — — — — — 297 Wholesale 28 110 18 — — — — — 156 Transmission and distribution 25 16 24 230 — 167 — — 462 Interstate pipeline — — — — 372 — — (37 ) 335 Other — — 1 — — — — — 1 Total Regulated 1,239 829 607 230 372 167 — (37 ) 3,407 Nonregulated — 6 — 8 — 1 126 139 280 Total Customer Revenue 1,239 835 607 238 372 168 126 102 3,687 Other revenue (2) 20 7 7 25 (1 ) — 41 39 138 Total $ 1,259 $ 842 $ 614 $ 263 $ 371 $ 168 $ 167 $ 141 $ 3,825
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 March 31, 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 Ended March 31, 2020 2019 Customer Revenue: Brokerage $ 777 $ 711 Franchise 16 14 Total Customer Revenue 793 725 Other revenue 100 60 Total $ 893 $ 785
PacifiCorp [Member]
Disaggregation of Revenue [Line Items]
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 Ended March 31, 2020 2019 Customer Revenue: Retail: Residential $ 460 $ 489 Commercial 358 360 Industrial 277 292 Other retail 27 29 Total retail 1,122 1,170 Wholesale (1) — 28 Transmission 22 25 Other Customer Revenue 26 16 Total Customer Revenue 1,170 1,239 Other revenue 36 20 Total operating revenue $ 1,206 $ 1,259
Nevada Power Company [Member]
Disaggregation of Revenue [Line Items]
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 Ended March 31, 2020 2019 Customer Revenue: Retail: Residential $ 193 $ 200 Commercial 94 90 Industrial 70 70 Other 3 5 Total fully bundled 360 365 Distribution only service 7 7 Total retail 367 372 Wholesale, transmission and other 16 17 Total Customer Revenue 383 389 Other revenue 6 6 Total revenue $ 389 $ 395
Sierra Pacific Power Company [Member]
Disaggregation of Revenue [Line Items]
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 10 (in millions): Three-Month Periods Ended March 31, 2020 2019 Electric Natural Gas Total Electric Natural Gas Total Customer Revenue: Retail: Residential $ 69 $ 30 $ 99 $ 68 $ 24 $ 92 Commercial 57 13 70 54 10 64 Industrial 41 4 45 39 3 42 Other 1 — 1 2 — 2 Total fully bundled 168 47 215 163 37 200 Distribution only service 1 — 1 1 — 1 Total retail 169 47 216 164 37 201 Wholesale, transmission and other 14 — 14 17 — 17 Total Customer Revenue 183 47 230 181 37 218 Other revenue 1 1 2 1 — 1 Total revenue $ 184 $ 48 $ 232 $ 182 $ 37 $ 219
MidAmerican Energy Company [Member]
Disaggregation of Revenue [Line Items]
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 9 , (in millions): For the Three-Month Periods Ended March 31, 2020 2019 Electric Natural Gas Other Total Electric Natural Gas Other Total Customer Revenue: Retail: Residential $ 148 $ 128 $ — $ 276 $ 171 $ 175 $ — $ 346 Commercial 70 43 — 113 75 66 — 141 Industrial 163 4 — 167 163 6 — 169 Natural gas transportation services — 11 — 11 — 12 — 12 Other retail (1) 29 — — 29 35 1 — 36 Total retail 410 186 — 596 444 260 — 704 Wholesale 42 22 — 64 76 34 — 110 Multi-value transmission projects 16 — — 16 16 — — 16 Other Customer Revenue — — 1 1 — — 5 5 Total Customer Revenue 468 208 1 677 536 294 5 835 Other revenue 3 1 — 4 6 1 — 7 Total operating revenue $ 471 $ 209 $ 1 $ 681 $ 542 $ 295 $ 5 $ 842

Components of Accumulated Oth_2

Components of Accumulated Other Comprehensive Loss, Net (Tables)	3 Months Ended
	Mar. 31, 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 (32 ) 155 (8 ) 115 Balance, March 31, 2019 $ (390 ) $ (1,468 ) $ 28 $ (1,830 ) Balance, December 31, 2019 $ (417 ) $ (1,296 ) $ 7 $ (1,706 ) Other comprehensive income (loss) 34 (548 ) (33 ) (547 ) Balance, March 31, 2020 $ (383 ) $ (1,844 ) $ (26 ) $ (2,253 )

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Mar. 31, 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 Ended March 31, 2020 2019 Operating revenue: PacifiCorp $ 1,206 $ 1,259 MidAmerican Funding 686 842 NV Energy 622 614 Northern Powergrid 266 263 BHE Pipeline Group 401 371 BHE Transmission 172 168 BHE Renewables 178 167 HomeServices 893 785 BHE and Other (1) 103 141 Total operating revenue $ 4,527 $ 4,610 Depreciation and amortization: PacifiCorp $ 252 $ 205 MidAmerican Funding 176 177 NV Energy 124 120 Northern Powergrid 63 63 BHE Pipeline Group 64 28 BHE Transmission 60 58 BHE Renewables 71 70 HomeServices 11 13 BHE and Other (1) — (1 ) Total depreciation and amortization $ 821 $ 733 Three-Month Periods Ended March 31, 2020 2019 Operating income: PacifiCorp $ 234 $ 284 MidAmerican Funding 102 116 NV Energy 79 84 Northern Powergrid 132 129 BHE Pipeline Group 249 243 BHE Transmission 76 76 BHE Renewables 17 18 HomeServices 20 (21 ) BHE and Other (1) 10 (10 ) Total operating income 919 919 Interest expense (483 ) (477 ) Capitalized interest 17 16 Allowance for equity funds 34 32 Interest and dividend income 20 30 Gains (losses) on marketable securities, net 27 (68 ) Other, net (27 ) 35 Total income before income tax expense and equity income $ 507 $ 487 Interest expense: PacifiCorp $ 102 $ 96 MidAmerican Funding 81 75 NV Energy 58 62 Northern Powergrid 32 34 BHE Pipeline Group 14 12 BHE Transmission 38 39 BHE Renewables 42 44 HomeServices 5 7 BHE and Other (1) 111 108 Total interest expense $ 483 $ 477 Operating revenue by country: United States $ 4,089 $ 4,177 United Kingdom 266 263 Canada 171 168 Philippines and other 1 2 Total operating revenue by country $ 4,527 $ 4,610 Income before income tax benefit and equity loss by country: United States $ 354 $ 336 United Kingdom 109 103 Canada 40 40 Philippines and other 4 8 Total income before income tax benefit and equity loss by country $ 507 $ 487 As of March 31, December 31, 2020 2019 Assets: PacifiCorp $ 24,953 $ 24,861 MidAmerican Funding 22,693 22,664 NV Energy 14,283 14,128 Northern Powergrid 7,686 8,385 BHE Pipeline Group 6,127 6,100 BHE Transmission 8,186 8,776 BHE Renewables 10,139 9,961 HomeServices 4,144 3,846 BHE and Other (1) 2,595 1,330 Total assets $ 100,806 $ 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 three-month period ended March 31, 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 — — — (44 ) — (116 ) — — (160 ) March 31, 2020 $ 1,129 $ 2,102 $ 2,369 $ 934 $ 73 $ 1,404 $ 95 $ 1,456 $ 9,562
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 Ended March 31, 2020 2019 Operating revenue: Regulated electric $ 471 $ 542 Regulated natural gas 209 295 Other 1 5 Total operating revenue $ 681 $ 842 Operating income: Regulated electric $ 59 $ 66 Regulated natural gas 39 48 Other — 1 Total operating income 98 115 Interest expense (76 ) (69 ) Allowance for borrowed funds 3 6 Allowance for equity funds 8 15 Other, net (5 ) 20 Income before income tax benefit $ 28 $ 87 As of March 31, December 31, Assets: Regulated electric $ 19,184 $ 19,093 Regulated natural gas 1,407 1,468 Other — 3 Total assets $ 20,591 $ 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 Ended March 31, 2020 2019 Operating revenue: Regulated electric $ 471 $ 542 Regulated natural gas 209 295 Other 6 5 Total operating revenue $ 686 $ 842 Operating income: Regulated electric $ 59 $ 66 Regulated natural gas 39 48 Other 4 2 Total operating income 102 116 Interest expense (81 ) (75 ) Allowance for borrowed funds 3 6 Allowance for equity funds 8 15 Other, net (6 ) 21 Income before income tax benefit $ 26 $ 83 As of March 31, December 31, Assets (1) : Regulated electric $ 20,375 $ 20,284 Regulated natural gas 1,486 1,547 Other 5 9 Total assets $ 21,866 $ 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 Ended March 31, 2020 2019 Operating revenue: Regulated electric $ 184 $ 182 Regulated natural gas 48 37 Total operating revenue $ 232 $ 219 Operating income: Regulated electric $ 33 $ 29 Regulated natural gas 7 8 Total operating income 40 37 Interest expense (14 ) (12 ) Allowance for equity funds 1 1 Other, net 1 2 Income before income tax expense $ 28 $ 28 As of March 31, December 31, 2020 2019 Assets: Regulated electric $ 3,332 $ 3,319 Regulated natural gas 314 308 Other (1) 40 44 Total assets $ 3,686 $ 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)	3 Months Ended
	Mar. 31, 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

Investments and Restricted Ca_3

Investments and Restricted Cash and Investments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Investments [Abstract]
Investments	$ 1,711		$ 1,719
Equity Method Investments [Abstract]
Equity Method Investments	4,053		3,947
Restricted Cash and Investments [Abstract]
Restricted cash and investments	774		829
Investments, including equity method investments and restricted cash and investments	6,538		6,495
Investments, including equity method investments and restricted cash and investments, current	245		240
Investments, including equity method investments and restricted cash and investments, noncurrent	6,293		6,255
Gain on Sale of Investments	27	$ (68)
Marketable Securities, Realized Gain (Loss)	2	0
Marketable Securities, Gain (Loss)	25	$ (68)
Quad Cities Station nuclear decommissioning trust funds [Member]
Restricted Cash and Investments [Abstract]
Decommissioning fund investments, fair value	541		599
Other restricted cash and investments [Member]
Restricted Cash and Investments [Abstract]
Restricted cash and investments	233		230
Equity Method Investments, tax equity investments [Member]
Equity Method Investments [Abstract]
Equity Method Investments	3,232		3,130
ETT [Member]
Equity Method Investments [Abstract]
Equity Method Investments	562		555
Bridger Coal Company [Member]
Equity Method Investments [Abstract]
Equity Method Investments	77		81
Other equity method investments [Member]
Equity Method Investments [Abstract]
Equity Method Investments	182		181
BYD Company Limited common stock [Member]
Investments [Abstract]
Available-for-sale securities, equity securities	1,176		1,122
Rabbi trusts [Member]
Investments [Abstract]
Rabbi trusts, amount	364		410
Other investments [Member]
Investments [Abstract]
Other investments	$ 171		$ 187

Property, Plant and Equipment_3

Property, Plant and Equipment, Net (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment in service, net	$ 68,845	$ 69,573
Construction in Progress, Gross	3,819	3,732
Property, plant and equipment, net	72,664	73,305
Regulated Operation [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	88,711	89,292
Accumulated depreciation and amortization	(26,414)	(26,353)
Property, plant and equipment in service, net	62,297	62,939
Construction in Progress, Gross	3,700	3,600
Regulated Operation [Member] | Utility generation, transmission and distribution systems
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 80,530	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	$ 8,181	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	$ 8,792	8,817
Accumulated depreciation and amortization	(2,244)	(2,183)
Property, plant and equipment in service, net	6,548	6,634
Unregulated Operation [Member] | Independent power plants
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 6,994	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	$ 1,798	$ 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	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Electric Property Plant And Equipment In Service Gross	$ 28,821	$ 28,763
Public utility accumulated depreciation and amortization	(9,739)	(9,803)
Public Utilities Property, Plant And Equipment In Service, Net	19,082	18,960
Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress	19,091	18,970
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	2,008	2,003
Public Utilities, Property, Plant and Equipment, Net	$ 21,099	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	$ 1,463	1,449
Electricity Generation Plant, Non-Nuclear [Member]
Property, Plant and Equipment [Line Items]
Electric Property Plant And Equipment In Service Gross	12,468	12,509
Electric Transmission [Member]
Property, Plant and Equipment [Line Items]
Electric Property Plant And Equipment In Service Gross	6,513	6,482
Electric Distribution [Member]
Property, Plant and Equipment [Line Items]
Electric Property Plant And Equipment In Service Gross	7,359	7,307
Other Intangible Assets [Member]
Property, Plant and Equipment [Line Items]
Electric Property Plant And Equipment In Service Gross	1,018	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	$ 47

Property, Plant and Equipment_5

Property, Plant and Equipment, Net Property, Plant and Equipment, Net - MEC (Details) - MidAmerican Energy Company [Member] - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress	$ 17,651	$ 17,593
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	851	782
Property, plant and equipment, net	18,502	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	23,878	23,726
Public Utilities, Property, Plant and Equipment, Accumulated Depreciation	(6,233)	(6,139)
Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress	17,645	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	$ 15,776	15,687
Public Utilities, Property, Plant and Equipment, Transmission	2,138	2,124
Public Utilities, Property, Plant and Equipment, Distribution	$ 4,131	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	$ 1,833	$ 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	Mar. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 1	$ 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	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress	$ 6,335	$ 6,343
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	250	195
Property, plant and equipment, net	6,585	6,538
Regulated Operation [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	3,551	3,541
Public Utilities, Property, Plant and Equipment, Transmission	1,456	1,444
Public Utilities, Property, Plant and Equipment, Distribution	3,603	3,567
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	744	741
Public Utilities, Property, Plant and Equipment, Plant in Service, Excluding Construction Work In Progress	9,354	9,293
Public Utilities, Property, Plant and Equipment, Accumulated Depreciation	3,020	2,951
Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress	$ 6,334	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	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress	$ 2,974	$ 2,962
Property, plant and equipment, net	3,075	3,075
Common Facilities [Member]
Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	101	113
Property, plant and equipment, net	3,075	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	1,129	1,133
Public Utilities, Property, Plant and Equipment, Transmission	874	840
Public Utilities, Property, Plant and Equipment, Distribution	1,690	1,669
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	$ 182	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	$ 421	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	$ 335	338
Public Utilities, Property, Plant and Equipment, Plant in Service, Excluding Construction Work In Progress	4,645	4,589
Public Utilities, Property, Plant and Equipment, Accumulated Depreciation	1,673	1,629
Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress	$ 2,972	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

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
	Apr. 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				$ 5
Public Utilities, Requested Rate Increase (Decrease), Amount				$ 5
Public Utilities, Approved Rate Increase (Decrease), Amount		$ 3	$ 5
Public Utilities, Revenue Sharing, Percent			50.00%
Public Utilities, Approved Return on Equity, Percentage			10.00%
Forecast [Member] | Subsequent Event [Member]
Schedule Of Regulatory Assets and Liabilities [Line Items]
Public Utilities, Interim Rate Increase (Decrease), Amount	$ 3
Public Utilities, Approved Rate Increase (Decrease), Amount	$ 2

Cash and Cash Equivalents and_4

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Supplemental Cash Flow Disclosure (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 2,071	$ 1,040
Restricted cash and cash equivalents	217	212
Restricted Cash and Cash Equivalents, Noncurrent	16	16
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 2,304	$ 1,268	$ 1,857	$ 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	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 2,071	$ 1,040
Restricted cash and cash equivalents	217	212
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	2,304	1,268	$ 1,857	$ 883
MidAmerican Energy Company [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	100	287
Restricted cash and cash equivalents	28	43
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 128	$ 330	$ 479	$ 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	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 2,071	$ 1,040
Restricted cash and cash equivalents	217	212
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	2,304	1,268	$ 1,857	$ 883
MidAmerican Funding, LLC and Subsidiaries [Domain]
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	100	288
Restricted cash and cash equivalents	28	43
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 128	$ 331	$ 480	$ 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	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 2,071	$ 1,040
Restricted cash and cash equivalents	217	212
Restricted Cash and Cash Equivalents, Noncurrent	16	16
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	2,304	1,268	$ 1,857	$ 883
PacifiCorp [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	53	30
Restricted cash and cash equivalents	5	4
Restricted Cash and Cash Equivalents, Noncurrent	2	2
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 60	$ 36	$ 684	$ 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	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 2,071	$ 1,040
Restricted cash and cash equivalents	217	212
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	2,304	1,268	$ 1,857	$ 883
Nevada Power Company [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	121	15
Restricted cash and cash equivalents	12	10
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 133	$ 25	$ 62	$ 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	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 2,071	$ 1,040
Restricted cash and cash equivalents	217	212
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	2,304	1,268	$ 1,857	$ 883
Sierra Pacific Power Company [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	27	27
Restricted cash and cash equivalents	6	5
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 33	$ 32	$ 68	$ 76

Recent Financing Transactions R

Recent Financing Transactions Recent Financing Transactions - Long-Term Debt (Details) - USD ($) $ in Millions	Apr. 30, 2020	Mar. 31, 2020	Jan. 31, 2020
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		4.10%
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		4.30%
Subsidiary Debt [Member] | PacifiCorp [Member] | First Mortgage Bonds, 2.70%, due 2030 [Member] | Subsequent Event [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] | Subsequent Event [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 600
Debt Instrument, Interest Rate, Stated Percentage	3.30%
Subsidiary Debt [Member] | Berkshire Hathaway Energy 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		2.61%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		3.23%
Subsidiary Debt [Member] | Berkshire Hathaway Energy 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 Financing Transactions - NPC (Details) - Subsidiary Debt [Member] - Nevada Power Company [Member] - NVE Holdings [Member] - USD ($) $ in Millions	Mar. 31, 2020	Jan. 31, 2020
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%

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory income tax rate	21.00%	21.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	(46.00%)	(29.00%)
State income tax, net of federal income tax benefit	(0.00%)	(17.00%)
Income tax effect of foreign income	(3.00%)	(3.00%)
Effects of ratemaking	(8.00%)	(3.00%)
Equity income	(1.00%)	(1.00%)
Other, net	1.00%	2.00%
Effective income tax rate	(36.00%)	(30.00%)
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)
Parent Company [Member]
Related Party Tax Expense [Abstract]
Related party transaction, cash received for income taxes, net	$ 100	$ 0

Income Taxes - PAC (Details)

Income Taxes - PAC (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory income tax rate	21.00%	21.00%
State income tax, net of federal income tax benefit	0.00%	17.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	(46.00%)	(29.00%)
Effects of ratemaking	(8.00%)	(3.00%)
Other, net	(1.00%)	(2.00%)
Effective income tax rate	36.00%	30.00%
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%
State income tax, net of federal income tax benefit	3.00%	3.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	(11.00%)	(4.00%)
Effects of ratemaking	(2.00%)	(1.00%)
Effective Income Tax Rate Reconciliation, Amortization of excess deferred income taxes	(20.00%)	0.00%
Effective income tax rate	(9.00%)	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	$ 26	$ 0

Income Taxes - MEC (Details)

Income Taxes - MEC (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory income tax rate	21.00%	21.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	(46.00%)	(29.00%)
State income tax, net of federal income tax benefit	(0.00%)	(17.00%)
Effects of ratemaking	(8.00%)	(3.00%)
Other, net	1.00%	2.00%
Effective income tax rate	36.00%	30.00%
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%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	(430.00%)	(113.00%)
State income tax, net of federal income tax benefit	(28.00%)	(21.00%)
Effects of ratemaking	(3.00%)	(8.00%)
Other, net	1.00%	(1.00%)
Effective income tax rate	(439.00%)	(122.00%)
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	$ (46)	$ 0

Income Taxes - MidAmerican Fund

Income Taxes - MidAmerican Funding (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory income tax rate	21.00%	21.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	(46.00%)	(29.00%)
State income tax, net of federal income tax benefit	(0.00%)	(17.00%)
Effects of ratemaking	(8.00%)	(3.00%)
Other, net	1.00%	2.00%
Effective income tax rate	36.00%	30.00%
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%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	(463.00%)	(118.00%)
State income tax, net of federal income tax benefit	(31.00%)	(22.00%)
Effects of ratemaking	(3.00%)	(9.00%)
Other, net	(1.00%)	(1.00%)
Effective income tax rate	(477.00%)	(129.00%)
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	$ (47)	$ 0

Income Taxes Income Taxes - NPC

Income Taxes Income Taxes - NPC (Details)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Federal statutory income tax rate	21.00%	21.00%
Effective Income Tax Rate Reconciliation Regulatory Differences	8.00%	3.00%
Other, net	(1.00%)	(2.00%)
Effective income tax rate	36.00%	30.00%

Income Taxes Income Taxes - SPP

Income Taxes Income Taxes - SPPC (Details)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Federal statutory income tax rate	21.00%	21.00%
Effects of ratemaking	(8.00%)	(3.00%)
Other, net	(1.00%)	(2.00%)
Effective income tax rate	36.00%	30.00%
Sierra Pacific Power Company [Member]
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Federal statutory income tax rate	21.00%	21.00%
Effects of ratemaking	8.00%	(0.00%)
Other, net	(2.00%)	0.00%
Effective income tax rate	11.00%	21.00%

Employee Benefit Plans (Details

Employee Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1	$ 2
Interest cost	6	6
Expected return on plan assets	(9)	(10)
Net amortization	(1)	(2)
Net periodic benefit cost	(3)	(4)
UNITED STATES | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	3	4
Interest cost	23	27
Expected return on plan assets	(35)	(38)
Net amortization	9	9
Net periodic benefit cost	0	2
UNITED KINGDOM | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	4	4
Interest cost	10	13
Expected return on plan assets	(25)	(25)
Net amortization	10	9
Net periodic benefit cost	$ (1)	$ 1

Employee Benefit Plans - Employ

Employee Benefit Plans - Employer Contributions (Details) - 3 months ended Mar. 31, 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	3
UNITED KINGDOM | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year | £			£ 43
Employer contributions	$ 14	£ 11

Employee Benefit Plans Employee

Employee Benefit Plans Employee Benefit Plans - PacifiCorp (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1	$ 2
Interest cost	6	6
Expected return on plan assets	(9)	(10)
Net amortization	(1)	(2)
Net periodic benefit cost	(3)	(4)
PacifiCorp [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0
Interest cost	3	3
Expected return on plan assets	(4)	(5)
Net amortization	0	0
Net periodic benefit cost	(1)	(2)
UNITED STATES | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	3	4
Interest cost	23	27
Expected return on plan assets	(35)	(38)
Net amortization	9	9
Net periodic benefit cost	0	2
UNITED STATES | PacifiCorp [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0
Interest cost	9	11
Expected return on plan assets	(14)	(17)
Net amortization	5	3
Net periodic benefit cost	$ 0	$ (3)

Employee Benefit Plans Employ_2

Employee Benefit Plans Employee Benefit Plans - PacifiCorp - Employer Contributions (Details) $ in Millions	3 Months Ended
	Mar. 31, 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	3
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	$ 1

Employee Benefit Plans - MEC (D

Employee Benefit Plans - MEC (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Pension Plan [Member] | UNITED STATES
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 3	$ 4
Interest cost	23	27
Expected return on plan assets	(35)	(38)
Net amortization	9	9
Net periodic benefit cost	0	2
Pension Plan [Member] | UNITED STATES | MidAmerican Energy Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	2
Interest cost	6	7
Expected return on plan assets	(10)	(10)
Net periodic benefit cost	(3)	(1)
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	2
Interest cost	6	6
Expected return on plan assets	(9)	(10)
Net amortization	(1)	(2)
Net periodic benefit cost	(3)	(4)
Other Postretirement Benefits Plan [Member] | MidAmerican Energy Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	1
Interest cost	2	2
Expected return on plan assets	(3)	(3)
Net amortization	(1)	(1)
Net periodic benefit cost	$ (1)	$ (1)

Employee Benefit Plans Employ_3

Employee Benefit Plans Employee Benefit Plans - MEC - Employer Contributions (Details) $ in Millions	3 Months Ended
	Mar. 31, 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	3
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	$ 2

Employee Benefit Plans - NPC -

Employee Benefit Plans - NPC - Amounts Payable (Details) - Nevada Power Company [Member] - UNITED STATES - NV Energy, Inc. [Member] - USD ($) $ in Millions	Mar. 31, 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	Mar. 31, 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	8	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	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Derivative, fair value, net	$ (85)	$ (63)
Cash collateral, net receivable, offset against derivative positions	48	47
Derivative assets (liabilities), at fair value, net	(37)	(16)
Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative, fair value, net	6	12
Cash collateral, net receivable, offset against derivative positions	(1)	0
Derivative assets (liabilities), at fair value, net	5	12
Other Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative, fair value, net	4	2
Cash collateral, net receivable, offset against derivative positions	0	0
Derivative assets (liabilities), at fair value, net	4	2
Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative, fair value, net	(48)	(27)
Cash collateral, net receivable, offset against derivative positions	21	20
Derivative assets (liabilities), at fair value, net	(27)	(7)
Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative, fair value, net	(47)	(50)
Cash collateral, net receivable, offset against derivative positions	28	27
Derivative assets (liabilities), at fair value, net	(19)	(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	16	21
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(101)	(84)
Derivative, fair value, net	(85)	(63)
Net Regulatory Asset (Liability), Unrealized Loss (Gain) On Derivative Contracts	84	62	$ 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	10	15
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(4)	(3)
Derivative, fair value, net	6	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	4	2
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0	0
Derivative, fair value, net	4	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	2	4
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(50)	(31)
Derivative, fair value, net	(48)	(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	(47)	(50)
Derivative, fair value, net	$ (47)	$ (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
	Mar. 31, 2020	Mar. 31, 2019
Regulatory Assets (Liabilities), Net, Unrealized Loss (Gain), Net, on Derivative Instruments [Line Items]
Beginning balance	$ 62	$ 96
Changes in fair value recognized in net regulatory assets	34	(54)
Net (losses) gains reclassified to operating revenue	8	(22)
Net Gains (Losses) Reclassified To Cost Of Domestic Regulated Electric	(20)	58
Ending balance	$ 84	$ 78

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	Mar. 31, 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	(129)	(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	Mar. 31, 2020	Dec. 31, 2019
Derivative [Line Items]
Derivative, net liability position, aggregate fair value	$ 95	$ 80
Collateral already posted, aggregate fair value	49	47
Additional collateral, aggregate fair value	$ 37	$ 27

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 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	$ (20)		$ (24)
Assets, fair value disclosure	4,998		3,897
Derivative liability, fair value, gross asset and right to reclaim cash, offset	112		103
Derivative liabilities	(186)		(76)
Cash collateral, net receivable, offset against derivative positions	92		79
Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	3,562		2,649
Derivative liabilities	(7)		(6)
Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	1,300		1,150
Derivative liabilities	(232)		(162)
Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	156		122
Derivative liabilities	(59)		(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	1,183		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
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	1,183		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
Money market mutual funds [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	1,750		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	1,750		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
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	154		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	154		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
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
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
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
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
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
Corporate obligations [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	66		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
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	66		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
Municipal obligations [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	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
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		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
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	1		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
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	1		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
United States companies [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	300		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	300		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
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
International companies [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	1,185		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	1,185		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
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
Investment funds [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI	172		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	172		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
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	(20)		(24)
Derivative assets	124		129
Derivative liability, fair value, gross asset and right to reclaim cash, offset	112		103
Derivative liabilities	(111)		(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	(3)		(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	38		45
Derivative liability, fair value, gross liability including not subject to master netting arrangement	(167)		(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	105		108
Derivative liability, fair value, gross liability including not subject to master netting arrangement	(53)		(11)
Interest Rate Contract [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	56		16
Derivative liabilities	(75)		(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
Derivative liability, fair value, gross liability including not subject to master netting arrangement	(4)		(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	5		2
Derivative liability, fair value, gross liability including not subject to master netting arrangement	(65)		(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	51		14
Derivative liability, fair value, gross liability including not subject to master netting arrangement	(6)		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	52	$ 86	97	$ 99
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings	3	3
Fair Value, Measurements with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included In Regulatory Assets and Liabilities, Net	40	11
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	2	1
Fair Value, Measurements With Unobservable Inputs Reconciliation, Recurring Basis, Assets and Liability, Net, Settlements	4	0
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	45	18	$ 14	$ 10
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings	(72)	(53)
Fair Value, Measurements with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included In Regulatory Assets and Liabilities, Net	0	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	0	0
Fair Value, Measurements With Unobservable Inputs Reconciliation, Recurring Basis, Assets and Liability, Net, Settlements	$ 41	$ 45

Fair Value Measurements - Level

Fair Value Measurements - Level 3 (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Commodity derivative [Member]
Fair Value, Assets (Liabilities), Net, Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 97	$ 99
Changes included in earnings	(3)	(3)
Changes in fair value recognized in net regulatory assets	(40)	(11)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	2	1
Settlements	(4)	0
Ending balance	52	86
Interest Rate Lock Commitments [Member]
Fair Value, Assets (Liabilities), Net, Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	14	10
Changes included in earnings	72	53
Changes in fair value recognized in net regulatory assets	0	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	0	0
Settlements	(41)	(45)
Ending balance	$ 45	$ 18

Fair Value Measurements - Debt

Fair Value Measurements - Debt (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 41,495	$ 39,353
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 47,220	$ 46,004

Fair Value Measurements - Pacif

Fair Value Measurements - PacifiCorp (Details) - USD ($) $ in Millions	Mar. 31, 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	$ (20)	$ (24)
Assets, fair value disclosure	4,998	3,897
Derivative liability, fair value, gross asset and right to reclaim cash, offset	112	103
Derivative Liability	(186)	(76)
Cash collateral, net receivable, offset against derivative positions	92	79
Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	3,562	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	1,300	1,150
Derivative Liability	(232)	(162)
Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	156	122
Derivative Liability	(59)	(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	(20)	(24)
Derivative assets	124	129
Derivative liability, fair value, gross asset and right to reclaim cash, offset	112	103
Derivative Liability	(111)	(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	(3)	(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	38	45
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(167)	(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	105	108
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(53)	(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	1,750	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	1,750	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	172	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	172	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	71	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	62	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	16	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	48	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	(7)	(7)
Derivative assets	9	14
Derivative liability, fair value, gross asset and right to reclaim cash, offset	55	54
Derivative Liability	(46)	(30)
Cash collateral, net receivable, offset against derivative positions	48	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	16	21
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(101)	(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	37	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	37	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	25	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	25	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	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 41,495	$ 39,353
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	47,220	46,004
PacifiCorp [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	7,659	7,658
PacifiCorp [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 9,042	$ 9,280

Fair Value Measurements - MEC (

Fair Value Measurements - MEC (Details) - Recurring [Member] - USD ($) $ in Millions		Mar. 31, 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		$ (20)	$ (24)
Assets, fair value disclosure		4,998	3,897
Derivative liability, fair value, gross asset and right to reclaim cash, offset		112	103
Cash collateral, net receivable, offset against derivative positions		92	79
Money market mutual funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		1,750	824
United States government obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale		154	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		66	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		1	1
United States companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		300	336
International companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		1,185	1,131
Investment funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		172	169
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		3,562	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		1,750	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		154	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		300	336
Level 1 [Member] | International companies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI		1,185	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		172	169
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		1,300	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		66	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		1	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		156	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		(20)	(24)
Derivative liability, fair value, gross asset and right to reclaim cash, offset		112	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		(3)	(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		38	45
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		(167)	(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		105	108
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		(53)	(11)
MidAmerican Energy Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		602	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]	46	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		154	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		66	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		1	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		300	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		9	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		18	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		528	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]	46	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		154	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		300	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		9	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		18	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		74	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		66	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		1	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		1	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		1	2
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	[2]	(1)	(1)
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		(8)	(7)
Derivative liability, fair value, gross asset and right to reclaim cash, offset	[2]	1	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		0	2
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		(8)	(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		1	1
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		$ (1)	$ 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 March 31, 2020 and December 31, 2019, respectively.

Fair Value Measurements - MEC -

Fair Value Measurements - MEC - Debt (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 41,495	$ 39,353
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	47,220	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	$ 8,282

Fair Value Measurements - MidAm

Fair Value Measurements - MidAmerican Funding - Debt (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 41,495	$ 39,353
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	47,220	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	$ 8,590

Fair Value Measurements - NPC (

Fair Value Measurements - NPC (Details) - Recurring [Member] - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		$ 4,998	$ 3,897
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		3,562	2,649
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		1,300	1,150
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		156	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		(3)	(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		(167)	(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		(53)	(11)
Nevada Power Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure		119	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		119	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		(38)	(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		(38)	(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]	117	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]	117	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
	Mar. 31, 2020	Mar. 31, 2019
Fair Value, Assets (Liabilities), Net, Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	$ (8)	$ 3
Fair Value, Measurements with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included In Regulatory Assets and Liabilities, Net	31	9
Fair Value, Measurements With Unobservable Inputs Reconciliation, Recurring Basis, Assets and Liability, Net, Settlements	(1)	(1)
Ending balance	$ (38)	$ (5)

Fair Value Measurements - NPC_2

Fair Value Measurements - NPC - Debt (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 41,495	$ 39,353
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	47,220	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	$ 2,837	$ 2,848

Fair Value Measurements Fair Va

Fair Value Measurements Fair Value Measurements - SPPC (Details) - Recurring [Member] - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019
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		$ (3)	$ (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		(167)	(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		(53)	(11)
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		(9)	(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		(9)	(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	[1]	25	25
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	[1]	25	25
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	[1]	0	0
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	[1]	$ 0	$ 0
[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 Measurements - SPPC

Fair Value Measurements - SPPC - Debt (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 41,495	$ 39,353
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	47,220	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	$ 1,226	$ 1,258

Commitments and Contingencies -

Commitments and Contingencies - Commitments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Equity Method Investments	$ 4,053	$ 3,947
Property, plant and equipment, net	72,664	$ 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
Property, plant and equipment, net	$ 1,000
Non-Recourse Debt	$ 800
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
Equity Method Investments	$ 76
Non-Recourse Debt	700
Easements [Member] | MidAmerican Energy Company [Member]
ContractualObligationFiscalYearMaturityScheduleTable [Line Items]
Purchase Obligation	$ 95

Commitments and Contingencies C

Commitments and Contingencies Commitments and Contingencies - PacifiCorp - Hydroelectric (Details) - PacifiCorp [Member] - Klamath Hydroelectric System [Member] $ in Millions	3 Months Ended
	Mar. 31, 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	Mar. 31, 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	$ 95

Commitments and Contingencies_3

Commitments and Contingencies Commitments and Contingencies - MEC - Transmission Rates (Details) - MidAmerican Energy Company [Member] - Electric Transmission [Member] $ in Millions	3 Months Ended
	Mar. 31, 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	$ 16
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%

Revenue from Contracts with C_3

Revenue from Contracts with Customers Revenue from Contracts with Customers (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		$ 3,516	$ 3,687
Operating revenue		4,527	4,610
Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		118	138
Electricity and natural gas [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		3,634	3,825
PacifiCorp [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		1,170	1,239
Operating revenue		1,206	1,259
PacifiCorp [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		36	20
MidAmerican Funding [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		682	835
Operating revenue		686	842
MidAmerican Funding [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		4	7
NV Energy, Inc. [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		615	607
Operating revenue		622	614
NV Energy, Inc. [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		7	7
Northern Powergrid Holdings [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		240	238
Operating revenue		266	263
Northern Powergrid Holdings [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		26	25
BHE Pipeline Group [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		400	372
Operating revenue		401	371
BHE Pipeline Group [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	[1]	1	(1)
BHE Transmission [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		172	168
Operating revenue		172	168
BHE Transmission [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		0	0
BHE Renewables [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		159	126
Operating revenue		178	167
BHE Renewables [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		19	41
Berkshire Hathaway Energy And Other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	[2]	78	102
Operating revenue	[2]	103	141
Berkshire Hathaway Energy And Other [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	[2]	25	39
Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		3,213	3,407
Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		2,061	2,156
Regulated Operation [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		234	297
Regulated Operation [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		77	156
Regulated Operation [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		462	462
Regulated Operation [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		352	335
Regulated Operation [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		27	1
Regulated Operation [Member] | PacifiCorp [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		1,170	1,239
Regulated Operation [Member] | PacifiCorp [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		1,122	1,186
Regulated Operation [Member] | PacifiCorp [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		0	0
Regulated Operation [Member] | PacifiCorp [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		0	28	[3]
Regulated Operation [Member] | PacifiCorp [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		22	25
Regulated Operation [Member] | PacifiCorp [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		0	0
Regulated Operation [Member] | PacifiCorp [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		26	0
Regulated Operation [Member] | MidAmerican Funding [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		676	829
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		410	443
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		187	260
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		64	110
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		15	16
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
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
Regulated Operation [Member] | NV Energy, Inc. [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		614	607
Regulated Operation [Member] | NV Energy, Inc. [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		529	527
Regulated Operation [Member] | NV Energy, Inc. [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		47	37
Regulated Operation [Member] | NV Energy, Inc. [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		14	18
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		23	24
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
Regulated Operation [Member] | NV Energy, Inc. [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		1	1
Regulated Operation [Member] | Northern Powergrid Holdings [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		233	230
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
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
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
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		233	230
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
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
Regulated Operation [Member] | BHE Pipeline Group [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		400	372
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
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
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
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
Regulated Operation [Member] | BHE Pipeline Group [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		400	372
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
Regulated Operation [Member] | BHE Transmission [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		169	167
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
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
Regulated Operation [Member] | BHE Transmission [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		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		169	167
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
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
Regulated Operation [Member] | BHE Renewables [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		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
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
Regulated Operation [Member] | BHE Renewables [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		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
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
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
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	[2]	(49)	(37)
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	[2]	0	0
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	[2]	0	0
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	[2]	(1)	0
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	[2]	0	0
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	[2]	(48)	(37)
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	[2]	0	0
Unregulated Operation [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		303	280
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
Unregulated Operation [Member] | MidAmerican Funding [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		6	6
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
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		7	8
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
Unregulated Operation [Member] | BHE Transmission [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		3	1
Unregulated Operation [Member] | BHE Renewables [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		159	126
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	[2]	127	139
PacifiCorp [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		1,206	1,259
PacifiCorp [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		36	20
PacifiCorp [Member] | Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		1,170	1,239
PacifiCorp [Member] | Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		1,122	1,170
PacifiCorp [Member] | Regulated Operation [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	[4]	0	28
PacifiCorp [Member] | Regulated Operation [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		22	25
PacifiCorp [Member] | Regulated Operation [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		$ 26	$ 16
[1]	Includes net payments to counterparties for the financial settlement of certain derivative contracts at BHE Pipeline Group.
[2]	(1)The BHE and Other reportable segment represents amounts related principally to other entities, corporate functions and intersegment eliminations.
[3]	(2)
[4]	(1)Includes net payments to counterparties for the financial settlement of certain non-derivative forward contracts for energy sales.

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
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3,516	$ 3,687
Operating revenue	4,527	4,610
Residential real estate brokerage and mortgage businesses [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	893	785
Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	118	138
HomeServices [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	893	785
HomeServices [Member] | Residential real estate brokerage [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	777	711
HomeServices [Member] | Residential real estate brokerage and mortgage businesses [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	793	725
Operating revenue	893	785
HomeServices [Member] | Real estate franchise [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	16	14
HomeServices [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	$ 100	$ 60

Revenue from Contracts with C_5

Revenue from Contracts with Customers Revenue from Contracts with Customers - Remaining Performance Obligation (Details) - BHE Pipeline Group [Member] $ in Millions	Mar. 31, 2020USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	9 months
Revenue, Remaining Performance Obligation, Amount	$ 888
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Amount	$ 5,770

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
		Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		$ 3,516	$ 3,687
Operating revenue		4,527	4,610
Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		118	138
Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		3,213	3,407
Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		2,061	2,156
Regulated Operation [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		77	156
Regulated Operation [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		462	462
Regulated Operation [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		27	1
PacifiCorp [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		1,206	1,259
PacifiCorp [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		36	20
PacifiCorp [Member] | Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		1,170	1,239
PacifiCorp [Member] | Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		1,122	1,170
PacifiCorp [Member] | Regulated Operation [Member] | Regulated retail electric [Member] | Residential [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		460	489
PacifiCorp [Member] | Regulated Operation [Member] | Regulated retail electric [Member] | Commercial [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		358	360
PacifiCorp [Member] | Regulated Operation [Member] | Regulated retail electric [Member] | Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		277	292
PacifiCorp [Member] | Regulated Operation [Member] | Regulated retail electric [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		27	29
PacifiCorp [Member] | Regulated Operation [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	[1]	0	28
PacifiCorp [Member] | Regulated Operation [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		22	25
PacifiCorp [Member] | Regulated Operation [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		$ 26	$ 16
[1]	(1)Includes net payments to counterparties for the financial settlement of certain non-derivative forward contracts for energy sales.

Revenue from Contracts with C_7

Revenue from Contracts with Customers Revenue from Contracts with Customers - MEC (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		$ 3,516	$ 3,687
Operating revenue		4,527	4,610
Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		118	138
Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		3,213	3,407
Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		2,061	2,156
Regulated Operation [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		234	297
Regulated Operation [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		77	156
Regulated Operation [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		27	1
MidAmerican Energy Company [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		677	835
Operating revenue		681	842
MidAmerican Energy Company [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		4	7
MidAmerican Energy Company [Member] | Regulated electric
Disaggregation of Revenue [Line Items]
Operating revenue		471	542
MidAmerican Energy Company [Member] | Regulated natural gas
Disaggregation of Revenue [Line Items]
Operating revenue		209	295
MidAmerican Energy Company [Member] | Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		1	5
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated retail [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		596	704
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		276	346
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		113	141
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		167	169
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		11	12
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	[1]	29	36
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		64	110
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		16	16
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated electric
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		468	536
Operating revenue		471	542
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		410	444
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		148	171
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		70	75
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		163	163
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	[1]	29	35
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		42	76
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		16	16
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated electric | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		3	6
MidAmerican Energy Company [Member] | Regulated Operation [Member] | Regulated natural gas
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		208	294
Operating revenue		209	295
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		186	260
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		128	175
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		43	66
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		4	6
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		11	12
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]	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		22	34
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
MidAmerican Energy Company [Member] | Unregulated Operation [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		1	5
MidAmerican Energy Company [Member] | Unregulated Operation [Member] | Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		1	5
Operating revenue		1	5
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		1	5
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
[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
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3,516	$ 3,687
Unregulated Operation [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	303	280
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	$ 5	$ 0

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
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3,516	$ 3,687
Operating revenue	4,527	4,610
Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	118	138
Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	3,213	3,407
Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,061	2,156
Nevada Power Company [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	389	395
Nevada Power Company [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	6	6
Nevada Power Company [Member] | Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	383	389
Nevada Power Company [Member] | Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	367	372
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	16	17
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	360	365
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	193	200
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	94	90
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	70	70
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	3	5
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	$ 7	$ 7

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
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3,516	$ 3,687
Operating revenue	4,527	4,610
Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	118	138
Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	3,213	3,407
Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,061	2,156
Regulated Operation [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	234	297
Sierra Pacific Power Company [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	232	219
Sierra Pacific Power Company [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	2	1
Sierra Pacific Power Company [Member] | Regulated Electric [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	184	182
Sierra Pacific Power Company [Member] | Regulated Electric [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1	1
Sierra Pacific Power Company [Member] | Regulated Gas [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	48	37
Sierra Pacific Power Company [Member] | Regulated Gas [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1	0
Sierra Pacific Power Company [Member] | Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	230	218
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	14	17
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Regulated Electric [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	183	181
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	14	17
Sierra Pacific Power Company [Member] | Regulated Operation [Member] | Regulated Gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	47	37
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
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	215	200
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	99	92
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	70	64
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	45	42
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	2
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	168	163
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	69	68
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	57	54
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	41	39
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	2
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	47	37
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	30	24
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	13	10
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	4	3
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
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
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
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
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	216	201
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	169	164
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	$ 47	$ 37

Components of Accumulated Oth_3

Components of Accumulated Other Comprehensive Loss, Net (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 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	34	$ (32)
Other comprehensive income (loss), foreign currency translation adjustment	(548)	155
Other comprehensive income (loss), unrealized gains (losses) on cash flow hedges	(33)	(8)
Other comprehensive income (loss)	(547)	115
Ending balance - Accumulated other comprehensive loss, net	(2,253)
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	34	(32)
Other comprehensive income (loss), foreign currency translation adjustment	(548)	155
Other comprehensive income (loss), unrealized gains (losses) on cash flow hedges	(33)	(8)
Other comprehensive income (loss)	(547)	115
Ending balance - unrecognized amounts on retirement benefits	(383)	(390)
Ending balance - foreign currency translation adjustment	(1,844)	(1,468)
Ending balance - unrealized gains (losses) on cash flow hedges	(26)	28
Ending balance - Accumulated other comprehensive loss, net	$ (2,253)	$ (1,830)

Components of Accumulated Oth_4

Components of Accumulated Other Comprehensive Loss, Net - MEC (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 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	(33)	$ (8)
Other comprehensive income (loss)	(547)	115
Ending balance - Accumulated other comprehensive loss, net	(2,253)
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	(33)	(8)
Other comprehensive income (loss)	(547)	115
Ending balance - unrealized gains (losses) on cash flow hedges	(26)	28
Ending balance - Accumulated other comprehensive loss, net	$ (2,253)	$ (1,830)

Segment Information (Details)

Segment Information (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Segment Reporting Information [Line Items]
Operating revenue		$ 4,527	$ 4,610
Depreciation and amortization - energy operations		809	720
Depreciation and amortization		821	733
Operating income		919	919
Interest expense		483	477
Capitalized interest		17	16
Interest Costs Capitalized		17	16
Allowance for equity funds		34	32
Interest and dividend income		20	30
Gains (losses) on marketable securities, net		27	(68)
Other, net		(27)	35
Income before income tax expense and equity income		507	487
Assets		100,806		$ 100,051
PacifiCorp [Member]
Segment Reporting Information [Line Items]
Operating revenue		1,206	1,259
Depreciation and amortization - energy operations		252	205
Operating income		234	284
Interest expense		102	96
Assets		24,953		24,861
MidAmerican Funding [Member]
Segment Reporting Information [Line Items]
Operating revenue		686	842
Depreciation and amortization - energy operations		176	177
Operating income		102	116
Interest expense		81	75
Assets		22,693		22,664
NV Energy, Inc. [Member]
Segment Reporting Information [Line Items]
Operating revenue		622	614
Depreciation and amortization - energy operations		124	120
Operating income		79	84
Interest expense		58	62
Assets		14,283		14,128
Northern Powergrid Holdings [Member]
Segment Reporting Information [Line Items]
Operating revenue		266	263
Depreciation and amortization - energy operations		63	63
Operating income		132	129
Interest expense		32	34
Assets		7,686		8,385
BHE Pipeline Group [Member]
Segment Reporting Information [Line Items]
Operating revenue		401	371
Depreciation and amortization - energy operations		64	28
Operating income		249	243
Interest expense		14	12
Assets		6,127		6,100
BHE Transmission [Member]
Segment Reporting Information [Line Items]
Operating revenue		172	168
Depreciation and amortization - energy operations		60	58
Operating income		76	76
Interest expense		38	39
Assets		8,186		8,776
Berkshire Hathaway Energy Renewables [Member]
Segment Reporting Information [Line Items]
Operating revenue		178	167
Depreciation and amortization - energy operations		71	70
Operating income		17	18
Interest expense		42	44
Assets		10,139		9,961
HomeServices [Member]
Segment Reporting Information [Line Items]
Operating revenue		893	785
Depreciation and amortization		11	13
Operating income		20	(21)
Interest expense		5	7
Assets		4,144		3,846
Berkshire Hathaway Energy And Other [Member]
Segment Reporting Information [Line Items]
Operating revenue	[1]	103	141
Depreciation and amortization - energy operations		0	(1)
Operating income		10	(10)
Interest expense		111	108
Assets		2,595		$ 1,330
UNITED STATES
Segment Reporting Information [Line Items]
Operating revenue		4,089	4,177
Income before income tax expense and equity income		354	336
UNITED KINGDOM
Segment Reporting Information [Line Items]
Operating revenue		266	263
Income before income tax expense and equity income		109	103
CANADA
Segment Reporting Information [Line Items]
Operating revenue		171	168
Income before income tax expense and equity income		40	40
The Philippines and other [Member]
Segment Reporting Information [Line Items]
Operating revenue		1	2
Income before income tax expense and equity income		$ 4	$ 8
[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	3 Months Ended
	Mar. 31, 2020USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 9,722
Foreign currency translation	(160)
Ending balance	9,562
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	(44)
Ending balance	934
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	(116)
Ending balance	1,404
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
	Mar. 31, 2020USD ($)OperatingSegmentsReportableSegments	Mar. 31, 2019USD ($)	Dec. 31, 2019USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | OperatingSegments	8
Operating revenue	$ 4,527	$ 4,610
Operating income	919	919
Interest expense	(483)	(477)
Allowance for borrowed funds	17	16
Allowance for equity funds	34	32
Other, net	(27)	35
Income before income tax (benefit) expense and equity income	507	487
Assets	$ 100,806		$ 100,051
MidAmerican Energy Company [Member]
Segment Reporting Information [Line Items]
Number of reportable segments | ReportableSegments	2
Operating revenue	$ 681	842
Operating income	98	115
Interest expense	(76)	(69)
Allowance for borrowed funds	3	6
Allowance for equity funds	8	15
Other, net	(5)	20
Income before income tax (benefit) expense and equity income	28	87
Assets	20,591		20,564
MidAmerican Energy Company [Member] | Regulated electric
Segment Reporting Information [Line Items]
Operating revenue	471	542
Operating income	59	66
Assets	19,184		19,093
MidAmerican Energy Company [Member] | Regulated natural gas
Segment Reporting Information [Line Items]
Operating revenue	209	295
Operating income	39	48
Assets	1,407		1,468
MidAmerican Energy Company [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Operating revenue	1	5
Operating income	0	$ 1
Assets	$ 0		$ 3

Segment Information Segment I_2

Segment Information Segment Information - MidAmerican Funding (Details) $ in Millions		3 Months Ended
		Mar. 31, 2020USD ($)OperatingSegmentsReportableSegments	Mar. 31, 2019USD ($)	Dec. 31, 2019USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | OperatingSegments		8
Operating revenue		$ 4,527	$ 4,610
Operating income		919	919
Interest expense		(483)	(477)
Allowance for borrowed funds		17	16
Allowance for equity funds		34	32
Other, net		(27)	35
Income before income tax (benefit) expense and equity income		507	487
Assets		$ 100,806		$ 100,051
MidAmerican Funding, LLC and Subsidiaries [Domain]
Segment Reporting Information [Line Items]
Number of reportable segments | ReportableSegments		2
Operating revenue		$ 686	842
Operating income		102	116
Interest expense		(81)	(75)
Allowance for borrowed funds		3	6
Allowance for equity funds		8	15
Other, net		(6)	21
Income before income tax (benefit) expense and equity income		26	83
Assets	[1]	21,866		21,840
MidAmerican Funding, LLC and Subsidiaries [Domain] | Regulated electric
Segment Reporting Information [Line Items]
Operating revenue		471	542
Operating income		59	66
Assets	[1]	20,375		20,284
MidAmerican Funding, LLC and Subsidiaries [Domain] | Regulated natural gas
Segment Reporting Information [Line Items]
Operating revenue		209	295
Operating income		39	48
Assets	[1]	1,486		1,547
MidAmerican Funding, LLC and Subsidiaries [Domain] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Operating revenue		6	5
Operating income		4	$ 2
Assets	[1]	$ 5		$ 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
		Mar. 31, 2020USD ($)OperatingSegmentsTheNumberOfReportableSegments	Mar. 31, 2019USD ($)	Dec. 31, 2019USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | OperatingSegments		8
Operating revenue		$ 4,527	$ 4,610
Operating income		919	919
Interest expense		(483)	(477)
Allowance for equity funds		34	32
Other, net		(27)	35
Income before income tax expense and equity income		507	487
Assets		$ 100,806		$ 100,051
Sierra Pacific Power Company [Member]
Segment Reporting Information [Line Items]
Number of reportable segments | TheNumberOfReportableSegments		2
Operating revenue		$ 232	219
Operating income		40	37
Interest expense		(14)	(12)
Allowance for equity funds		1	1
Other, net		1	2
Income before income tax expense and equity income		28	28
Assets		3,686		3,671
Sierra Pacific Power Company [Member] | Regulated electric
Segment Reporting Information [Line Items]
Regulated Operating Revenue		184	182
Operating income		33	29
Assets		3,332		3,319
Sierra Pacific Power Company [Member] | Regulated natural gas
Segment Reporting Information [Line Items]
Regulated Operating Revenue, Gas		48	37
Operating income		7	$ 8
Assets		314		308
Sierra Pacific Power Company [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Assets	[1]	$ 40		$ 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	3 Months Ended
	Mar. 31, 2020	Mar. 31, 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