Midamerican Funding 10-Q 29 Apr 22 2022 Q1 Quarterly report Financial data

Cover

Cover - shares	3 Months Ended
	Mar. 31, 2022	Apr. 28, 2022
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2022
Document Transition Report	false
Entity File Number	001-14881
Entity Registrant Name	BERKSHIRE HATHAWAY ENERGY COMPANY
Entity Tax Identification Number	94-2213782
Entity Incorporation, State or Country Code	IA
Entity Address, Address Line One	666 Grand Avenue
Entity Address, City or Town	Des Moines
Entity Address, State or Province	IA
Entity Address, Postal Zip Code	50309-2580
City Area Code	515
Local Phone Number	242-4300
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		76,368,874
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q1
Entity Central Index Key	0001081316
Current Fiscal Year End Date	--12-31
PAC
Document Information [Line Items]
Entity File Number	001-05152
Entity Registrant Name	PACIFICORP
Entity Tax Identification Number	93-0246090
Entity Incorporation, State or Country Code	OR
Entity Address, Address Line One	825 N.E. Multnomah Street
Entity Address, Address Line Two	Suite 1900
Entity Address, City or Town	Portland
Entity Address, State or Province	OR
Entity Address, Postal Zip Code	97232
City Area Code	888
Local Phone Number	221-7070
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		357,060,915
Entity Central Index Key	0000075594
MidAmerican Funding, LLC
Document Information [Line Items]
Entity File Number	333-90553
Entity Registrant Name	MIDAMERICAN FUNDING, LLC
Entity Tax Identification Number	47-0819200
Entity Incorporation, State or Country Code	IA
Entity Address, Address Line One	666 Grand Avenue
Entity Address, City or Town	Des Moines
Entity Address, State or Province	IA
Entity Address, Postal Zip Code	50309-2580
City Area Code	515
Local Phone Number	242-4300
Entity Current Reporting Status	No
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Central Index Key	0001098296
MEC
Document Information [Line Items]
Entity File Number	333-15387
Entity Registrant Name	MIDAMERICAN ENERGY COMPANY
Entity Tax Identification Number	42-1425214
Entity Incorporation, State or Country Code	IA
Entity Address, Address Line One	666 Grand Avenue
Entity Address, City or Town	Des Moines
Entity Address, State or Province	IA
Entity Address, Postal Zip Code	50309-2580
City Area Code	515
Local Phone Number	242-4300
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		70,980,203
Entity Central Index Key	0000928576
NPC
Document Information [Line Items]
Entity File Number	000-52378
Entity Registrant Name	NEVADA POWER COMPANY
Entity Tax Identification Number	88-0420104
Entity Incorporation, State or Country Code	NV
Entity Address, Address Line One	6226 West Sahara Avenue
Entity Address, City or Town	Las Vegas
Entity Address, State or Province	NV
Entity Address, Postal Zip Code	89146
City Area Code	702
Local Phone Number	402-5000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		1,000
Entity Central Index Key	0000071180
SPPC
Document Information [Line Items]
Entity File Number	000-00508
Entity Registrant Name	SIERRA PACIFIC POWER COMPANY
Entity Tax Identification Number	88-0044418
Entity Incorporation, State or Country Code	NV
Entity Address, Address Line One	6100 Neil Road
Entity Address, City or Town	Reno
Entity Address, State or Province	NV
Entity Address, Postal Zip Code	89511
City Area Code	775
Local Phone Number	834-4011
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		1,000
Entity Central Index Key	0000090144
EEGH
Document Information [Line Items]
Entity File Number	001-37591
Entity Registrant Name	EASTERN ENERGY GAS HOLDINGS, LLC
Entity Tax Identification Number	46-3639580
Entity Incorporation, State or Country Code	VA
Entity Address, Address Line One	6603 West Broad Street
Entity Address, City or Town	Richmond
Entity Address, State or Province	VA
Entity Address, Postal Zip Code	23230
City Area Code	804
Local Phone Number	613-5100
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Central Index Key	0001603291

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 1,432	$ 1,096
Restricted cash and cash equivalents	129	127
Trade receivables, net	2,342	2,468
Income tax receivable	656	344
Inventories	1,091	1,122
Mortgage loans held for sale	975	1,263
Derivative contracts	437	188
Regulatory assets	627	544
Other current assets	815	1,096
Total current assets	8,504	8,248
Property, plant and equipment, net	90,283	89,816
Goodwill	11,649	11,650
Regulatory assets	3,458	3,419
Investments and restricted cash, cash equivalents and investments	14,394	15,788
Other assets	3,181	3,144
Total assets	131,469	132,065
Current liabilities:
Accounts payable	1,820	2,136
Accrued interest	644	537
Accrued property, income and other taxes	606	606
Accrued employee expenses	398	372
Short-term debt	1,849	2,009
Current portion of long-term debt	1,494	1,265
Other current liabilities	1,647	1,837
Total current liabilities	8,458	8,762
BHE senior debt	12,605	13,003
BHE junior subordinated debentures	100	100
Subsidiary debt	35,706	35,394
Regulatory liabilities	7,063	6,960
Deferred income taxes	12,786	12,938
Other long-term liabilities	4,327	4,319
Total liabilities	81,045	81,476
Commitments and contingencies
BHE shareholders' equity:
Preferred stock	1,650	1,650
Common stock	0	0
Additional paid-in capital	6,374	6,374
Long-term income tax receivable	(744)	(744)
Retained earnings	40,608	40,754
Accumulated other comprehensive loss, net	(1,358)	(1,340)
Total shareholder's equity, parent	46,530	46,694
Noncontrolling interests	3,894	3,895
Total equity	50,424	50,589
Total liabilities and equity	$ 131,469	$ 132,065

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares shares in Millions	Mar. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Preferred stock, shares authorized	100	100
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares issued	2	2
Preferred stock, shares outstanding	2	2
Common stock, shares authorized	115	115
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares issued	76	76
Common stock, shares outstanding	76	76

Consolidated Balance Sheets (_3

Consolidated Balance Sheets (Unaudited) - PAC - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 1,432	$ 1,096
Inventories	1,091	1,122
Derivative contracts	437	188
Regulatory assets	627	544
Other current assets	815	1,096
Total current assets	8,504	8,248
Regulatory assets	3,458	3,419
Other assets	3,181	3,144
Total assets	131,469	132,065
Current liabilities:
Accounts payable	1,820	2,136
Accrued interest	644	537
Accrued property, income and other taxes	606	606
Accrued employee expenses	398	372
Current portion of long-term debt	1,494	1,265
Other current liabilities	1,647	1,837
Total current liabilities	8,458	8,762
Regulatory liabilities	7,063	6,960
Deferred income taxes	12,786	12,938
Other long-term liabilities	4,327	4,319
Total liabilities	81,045	81,476
Commitments and contingencies
Equity:
Preferred stock	1,650	1,650
Common stock	0	0
Additional paid-in capital	6,374	6,374
Retained earnings	40,608	40,754
Accumulated other comprehensive loss, net	(1,358)	(1,340)
Total shareholder's equity, parent	46,530	46,694
Total liabilities and equity	131,469	132,065
PAC
Current assets:
Cash and cash equivalents	335	179
Trade receivables, net	674	725
Other receivables	49	52
Inventories	479	474
Derivative contracts	145	76
Regulatory assets	125	65
Other current assets	163	150
Total current assets	1,970	1,721
Property, plant and equipment, net	23,081	22,914
Regulatory assets	1,231	1,287
Other assets	562	534
Total assets	26,844	26,456
Current liabilities:
Accounts payable	724	680
Accrued interest	115	121
Accrued property, income and other taxes	113	78
Accrued employee expenses	109	89
Current portion of long-term debt	155	155
Regulatory liabilities	114	118
Other current liabilities	196	219
Total current liabilities	1,526	1,460
Long-term debt	8,567	8,575
Regulatory liabilities	2,807	2,650
Deferred income taxes	2,886	2,847
Other long-term liabilities	1,014	1,011
Total liabilities	16,800	16,543
Commitments and contingencies
Equity:
Preferred stock	2	2
Common stock	0	0
Additional paid-in capital	4,479	4,479
Retained earnings	5,579	5,449
Accumulated other comprehensive loss, net	(16)	(17)
Total shareholder's equity, parent	10,044	9,913
Total liabilities and equity	$ 26,844	$ 26,456

Consolidated Balance Sheets (_4

Consolidated Balance Sheets (Unaudited) - PAC (Parenthetical) - $ / shares shares in Millions	Mar. 31, 2022	Dec. 31, 2021
Common stock, shares authorized	115	115
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares issued	76	76
Common stock, shares outstanding	76	76
PAC
Common stock, shares authorized	750	750
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares issued	357	357
Common stock, shares outstanding	357	357

Balance Sheets (Unaudited) - ME

Balance Sheets (Unaudited) - MEC - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 1,432	$ 1,096
Income tax receivable	656	344
Inventories	1,091	1,122
Other current assets	815	1,096
Total current assets	8,504	8,248
Regulatory assets	3,458	3,419
Investments and restricted cash, cash equivalents and investments	14,394	15,788
Other assets	3,181	3,144
Total assets	131,469	132,065
Current liabilities:
Accounts payable	1,820	2,136
Accrued interest	644	537
Accrued property, income and other taxes	606	606
Current portion of long-term debt	1,494	1,265
Other current liabilities	1,647	1,837
Total current liabilities	8,458	8,762
Regulatory liabilities	7,063	6,960
Deferred income taxes	12,786	12,938
Other long-term liabilities	4,327	4,319
Total liabilities	81,045	81,476
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	6,374	6,374
Retained earnings	40,608	40,754
Total shareholder's equity, parent	46,530	46,694
Total liabilities and equity	131,469	132,065
MEC
Current assets:
Cash and cash equivalents	131	232
Trade receivables, net	468	526
Income tax receivable	297	79
Inventories	185	234
Other current assets	187	123
Total current assets	1,268	1,194
Property, plant and equipment, net	20,344	20,301
Regulatory assets	492	473
Investments and restricted cash, cash equivalents and investments	985	1,026
Other assets	262	263
Total assets	23,351	23,257
Current liabilities:
Accounts payable	429	531
Accrued interest	88	84
Accrued property, income and other taxes	144	158
Current portion of long-term debt	7	0
Other current liabilities	144	145
Total current liabilities	812	918
Long-term debt	7,719	7,721
Regulatory liabilities	1,057	1,080
Deferred income taxes	3,373	3,389
Asset retirement obligations	723	714
Other long-term liabilities	463	475
Total liabilities	14,147	14,297
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	561	561
Retained earnings	8,643	8,399
Total shareholder's equity, parent	9,204	8,960
Total liabilities and equity	$ 23,351	$ 23,257

Balance Sheets (Unaudited) - _2

Balance Sheets (Unaudited) - MEC (Parenthetical) - $ / shares shares in Millions	Mar. 31, 2022	Dec. 31, 2021
Common stock, shares authorized	115	115
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares issued	76	76
Common stock, shares outstanding	76	76
MEC
Common stock, shares authorized	350	350
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares issued	71	71
Common stock, shares outstanding	71	71

Consolidated Balance Sheets (_5

Consolidated Balance Sheets (Unaudited) - MidAmerican Funding LLC - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 1,432	$ 1,096
Income tax receivable	656	344
Inventories	1,091	1,122
Other current assets	815	1,096
Total current assets	8,504	8,248
Property, plant and equipment, net	90,283	89,816
Goodwill	11,649	11,650
Regulatory assets	3,458	3,419
Investments and restricted cash, cash equivalents and investments	14,394	15,788
Other assets	3,181	3,144
Total assets	131,469	132,065
Current liabilities:
Accounts payable	1,820	2,136
Accrued interest	644	537
Accrued property, income and other taxes	606	606
Current portion of long-term debt	1,494	1,265
Other current liabilities	1,647	1,837
Total current liabilities	8,458	8,762
Regulatory liabilities	7,063	6,960
Deferred income taxes	12,786	12,938
Other long-term liabilities	4,327	4,319
Total liabilities	81,045	81,476
Commitments and contingencies
Equity:
Additional paid-in capital	6,374	6,374
Retained earnings	40,608	40,754
Total shareholder's equity, parent	46,530	46,694
Total liabilities and equity	131,469	132,065
MidAmerican Funding, LLC
Current assets:
Cash and cash equivalents	132	233
Trade receivables, net	468	526
Income tax receivable	299	80
Inventories	185	234
Other current assets	187	123
Total current assets	1,271	1,196
Property, plant and equipment, net	20,345	20,302
Goodwill	1,270	1,270
Regulatory assets	492	473
Investments and restricted cash, cash equivalents and investments	987	1,028
Other assets	261	262
Total assets	24,626	24,531
Current liabilities:
Accounts payable	429	531
Accrued interest	89	89
Accrued property, income and other taxes	144	158
Notes payable	197	189
Current portion of long-term debt	7	0
Other current liabilities	145	146
Total current liabilities	1,011	1,113
Long-term debt	7,959	7,961
Regulatory liabilities	1,057	1,080
Deferred income taxes	3,371	3,387
Asset retirement obligations	723	714
Other long-term liabilities	463	475
Total liabilities	14,584	14,730
Commitments and contingencies
Equity:
Additional paid-in capital	1,679	1,679
Retained earnings	8,363	8,122
Total shareholder's equity, parent	10,042	9,801
Total liabilities and equity	$ 24,626	$ 24,531

Consolidated Balance Sheets (_6

Consolidated Balance Sheets (Unaudited) - NPC - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 1,432	$ 1,096
Inventories	1,091	1,122
Regulatory assets	627	544
Other current assets	815	1,096
Total current assets	8,504	8,248
Regulatory assets	3,458	3,419
Other assets	3,181	3,144
Total assets	131,469	132,065
Current liabilities:
Accounts payable	1,820	2,136
Accrued interest	644	537
Accrued property, income and other taxes	606	606
Short-term debt	1,849	2,009
Other current liabilities	1,647	1,837
Total current liabilities	8,458	8,762
Regulatory liabilities	7,063	6,960
Deferred income taxes	12,786	12,938
Other long-term liabilities	4,327	4,319
Total liabilities	81,045	81,476
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	6,374	6,374
Retained earnings	40,608	40,754
Accumulated other comprehensive loss, net	(1,358)	(1,340)
Total shareholder's equity, parent	46,530	46,694
Total liabilities and equity	131,469	132,065
NPC
Current assets:
Cash and cash equivalents	47	33
Trade receivables, net	187	227
Inventories	61	64
Regulatory assets	327	291
Prepayments	48	33
Other current assets	59	53
Total current assets	729	701
Property, plant and equipment, net	6,992	6,891
Regulatory assets	759	728
Other assets	431	432
Total assets	8,911	8,752
Current liabilities:
Accounts payable	224	242
Accrued interest	38	32
Accrued property, income and other taxes	30	29
Short-term debt	104	180
Regulatory liabilities	49	49
Customer deposits	45	44
Derivative contracts	88	55
Other current liabilities	59	62
Total current liabilities	637	693
Long-term debt	2,700	2,499
Finance lease obligations	306	310
Regulatory liabilities	1,083	1,100
Deferred income taxes	799	782
Other long-term liabilities	358	338
Total liabilities	5,883	5,722
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	2,308	2,308
Retained earnings	722	724
Accumulated other comprehensive loss, net	(2)	(2)
Total shareholder's equity, parent	3,028	3,030
Total liabilities and equity	$ 8,911	$ 8,752

Consolidated Balance Sheets (_7

Consolidated Balance Sheets (Unaudited) - NPC (Parenthetical) - $ / shares	Mar. 31, 2022	Dec. 31, 2021
Common stock, shares authorized	115,000,000	115,000,000
Common stock, shares issued	76,000,000	76,000,000
Common stock, shares outstanding	76,000,000	76,000,000
NPC
Common stock, par value (in dollars 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 (_8

Consolidated Balance Sheets (Unaudited) - SPPC - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 1,432	$ 1,096
Inventories	1,091	1,122
Regulatory assets	627	544
Other current assets	815	1,096
Total current assets	8,504	8,248
Regulatory assets	3,458	3,419
Other assets	3,181	3,144
Total assets	131,469	132,065
Current liabilities:
Accounts payable	1,820	2,136
Accrued property, income and other taxes	606	606
Short-term debt	1,849	2,009
Other current liabilities	1,647	1,837
Total current liabilities	8,458	8,762
Regulatory liabilities	7,063	6,960
Deferred income taxes	12,786	12,938
Other long-term liabilities	4,327	4,319
Total liabilities	81,045	81,476
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	6,374	6,374
Retained earnings	40,608	40,754
Accumulated other comprehensive loss, net	(1,358)	(1,340)
Total shareholder's equity, parent	46,530	46,694
Total liabilities and equity	131,469	132,065
SPPC
Current assets:
Cash and cash equivalents	15	10
Trade receivables, net	120	128
Inventories	71	65
Regulatory assets	164	177
Other current assets	36	35
Total current assets	406	415
Property, plant and equipment, net	3,386	3,340
Regulatory assets	282	263
Other assets	205	205
Total assets	4,279	4,223
Current liabilities:
Accounts payable	125	147
Accrued property, income and other taxes	28	16
Short-term debt	57	159
Regulatory liabilities	20	19
Customer deposits	16	15
Derivative contracts	28	16
Other current liabilities	39	42
Total current liabilities	313	414
Long-term debt, carrying value	1,164	1,164
Regulatory liabilities	440	444
Deferred income taxes	401	402
Other long-term liabilities	268	264
Total liabilities	2,586	2,688
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	1,241	1,111
Retained earnings	453	425
Accumulated other comprehensive loss, net	(1)	(1)
Total shareholder's equity, parent	1,693	1,535
Total liabilities and equity	$ 4,279	$ 4,223

Consolidated Balance Sheets (_9

Consolidated Balance Sheets (Unaudited) - SPPC (Parenthetical) - $ / shares	Mar. 31, 2022	Dec. 31, 2021
Common stock, shares authorized	115,000,000	115,000,000
Common stock, shares issued	76,000,000	76,000,000
Common stock, shares outstanding	76,000,000	76,000,000
SPPC
Common stock, par value (in dollars 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 _10

Consolidated Balance Sheets (Unaudited) - EEGH - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 1,432	$ 1,096
Trade receivables, net	2,342	2,468
Inventories	1,091	1,122
Natural gas imbalances	627	544
Other current assets	815	1,096
Total current assets	8,504	8,248
Property, plant and equipment, net	90,283	89,816
Goodwill	11,649	11,650
Investments	14,394	15,788
Other assets	3,181	3,144
Total assets	131,469	132,065
Current liabilities:
Accounts payable	1,820	2,136
Accrued interest	644	537
Accrued property, income and other taxes	606	606
Accrued employee expenses	398	372
Other current liabilities	1,647	1,837
Total current liabilities	8,458	8,762
Regulatory liabilities	7,063	6,960
Other long-term liabilities	4,327	4,319
Total liabilities	81,045	81,476
Commitments and contingencies
Member's equity:
Accumulated other comprehensive loss, net	(1,358)	(1,340)
Total liabilities and equity	131,469	132,065
EEGH
Current assets:
Cash and cash equivalents	54	22
Trade receivables, net	154	183
Receivables from affiliates	32	47
Notes receivable from affiliates	122	7
Other receivables	3	9
Inventories	124	122
Natural gas imbalances	105	100
Other current assets	132	131
Total current assets	726	621
Property, plant and equipment, net	10,183	10,200
Goodwill	1,286	1,286
Investments	423	412
Other assets	122	129
Total assets	12,740	12,648
Current liabilities:
Accounts payable	42	79
Accounts payable to affiliates	13	38
Accrued interest	54	19
Accrued property, income and other taxes	59	89
Accrued employee expenses	21	13
Regulatory liabilities	44	40
Other current liabilities	110	87
Total current liabilities	343	365
Long-term debt	3,899	3,906
Regulatory liabilities	645	645
Other long-term liabilities	263	238
Total liabilities	5,150	5,154
Commitments and contingencies
Member's equity:
Membership interests	3,595	3,501
Accumulated other comprehensive loss, net	(38)	(43)
Total member's equity	3,557	3,458
Noncontrolling interests	4,033	4,036
Total equity	7,590	7,494
Total liabilities and equity	$ 12,740	$ 12,648

Consolidated Statements of Oper

Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating revenue:
Total operating revenue	$ 6,030	$ 6,081
Energy:
Cost of sales	1,460	1,569
Operations and maintenance	943	934
Depreciation and amortization	1,007	915
Property and other taxes	205	210
Real estate	1,179	1,120
Total operating expenses	4,794	4,748
Operating income	1,236	1,333
Other income (expense):
Interest expense	(532)	(530)
Capitalized interest	17	14
Allowance for equity funds	38	26
Interest and dividend income	23	21
Losses on marketable securities, net	(1,257)	(1,118)
Other, net	5	8
Total other income (expense)	(1,706)	(1,579)
Income (loss) before income tax expense (benefit) and equity income (loss)	(470)	(246)
Income tax benefit	(507)	(535)
Equity loss	(57)	(179)
Net (loss) income	(20)	110
Net income attributable to noncontrolling interests	109	106
Net income (loss) attributable to parent	(129)	4
Preferred dividends	16	38
Loss on common shares	(145)	(34)
Energy
Operating revenue:
Total operating revenue	4,823	4,849
Real estate
Operating revenue:
Total operating revenue	$ 1,207	$ 1,232

Consolidated Statements of Op_2

Consolidated Statements of Operations (Unaudited) - PAC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating revenue	$ 6,030	$ 6,081
Operating expenses:
Cost of sales	1,460	1,569
Operating income	1,236	1,333
Other income (expense):
Interest expense	(532)	(530)
Allowance for borrowed funds	17	14
Allowance for equity funds	38	26
Interest and dividend income	23	21
Other, net	5	8
Total other income (expense)	(1,706)	(1,579)
Income (loss) before income tax expense (benefit) and equity income (loss)	(470)	(246)
Income tax benefit	(507)	(535)
Net income (loss) attributable to parent	(129)	4
PAC
Operating revenue	1,297	1,242
Operating expenses:
Cost of sales	465	424
Operations and maintenance	277	259
Depreciation and amortization	280	264
Property and other taxes	59	61
Total operating expenses	1,081	1,008
Operating income	216	234
Other income (expense):
Interest expense	(106)	(107)
Allowance for borrowed funds	6	6
Allowance for equity funds	13	13
Interest and dividend income	7	6
Other, net	(4)	6
Total other income (expense)	(84)	(76)
Income (loss) before income tax expense (benefit) and equity income (loss)	132	158
Income tax benefit	2	(11)
Net income (loss) attributable to parent	$ 130	$ 169

Statements of Operations (Unaud

Statements of Operations (Unaudited) - MEC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating revenue:
Total operating revenue	$ 6,030	$ 6,081
Operating expenses:
Cost of sales	1,460	1,569
Total operating expenses	4,794	4,748
Operating income	1,236	1,333
Other income (expense):
Interest expense	(532)	(530)
Allowance for equity funds	38	26
Other, net	5	8
Total other income (expense)	(1,706)	(1,579)
Income (loss) before income tax expense (benefit) and equity income (loss)	(470)	(246)
Income tax benefit	(507)	(535)
Net income (loss) attributable to parent	(129)	4
MEC
Operating revenue:
Total operating revenue	1,005	1,067
Operating expenses:
Operations and maintenance	192	193
Depreciation and amortization	250	207
Property and other taxes	40	36
Total operating expenses	905	1,019
Operating income	100	48
Other income (expense):
Interest expense	(78)	(74)
Allowance for borrowed funds	4	2
Allowance for equity funds	15	6
Other, net	(3)	11
Total other income (expense)	(62)	(55)
Income (loss) before income tax expense (benefit) and equity income (loss)	38	(7)
Income tax benefit	(206)	(154)
Net income (loss) attributable to parent	244	147
Regulated electric | MEC
Operating revenue:
Total operating revenue	608	545
Operating expenses:
Cost of sales	125	151
Regulated natural gas and other | MEC
Operating revenue:
Total operating revenue	397	522
Operating expenses:
Cost of sales	$ 298	$ 432

Consolidated Statements of Op_3

Consolidated Statements of Operations (Unaudited) - MidAmerican Funding LLC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating revenue:
Total operating revenue	$ 6,030	$ 6,081
Operating expenses:
Cost of sales	1,460	1,569
Total operating expenses	4,794	4,748
Operating income	1,236	1,333
Other income (expense):
Interest expense	(532)	(530)
Allowance for equity funds	38	26
Other, net	5	8
Total other income (expense)	(1,706)	(1,579)
Income (loss) before income tax expense (benefit) and equity income (loss)	(470)	(246)
Income tax benefit	(507)	(535)
Net income (loss) attributable to parent	(129)	4
MidAmerican Funding, LLC
Operating revenue:
Total operating revenue	1,005	1,067
Operating expenses:
Operations and maintenance	192	193
Depreciation and amortization	250	207
Property and other taxes	40	36
Total operating expenses	905	1,019
Operating income	100	48
Other income (expense):
Interest expense	(82)	(78)
Allowance for borrowed funds	4	2
Allowance for equity funds	15	6
Other, net	(4)	10
Total other income (expense)	(67)	(60)
Income (loss) before income tax expense (benefit) and equity income (loss)	33	(12)
Income tax benefit	(208)	(156)
Net income (loss) attributable to parent	241	144
Regulated electric | MidAmerican Funding, LLC
Operating revenue:
Total operating revenue	608	545
Operating expenses:
Cost of sales	125	151
Regulated natural gas and other | MidAmerican Funding, LLC
Operating revenue:
Total operating revenue	397	522
Operating expenses:
Cost of sales	$ 298	$ 432

Consolidated Statements of Op_4

Consolidated Statements of Operations (Unaudited) - NPC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating revenue	$ 6,030	$ 6,081
Operating expenses:
Cost of sales	1,460	1,569
Total operating expenses	4,794	4,748
Operating income	1,236	1,333
Other income (expense):
Interest expense	(532)	(530)
Allowance for borrowed funds	17	14
Allowance for equity funds	38	26
Interest and dividend income	23	21
Other, net	5	8
Total other income (expense)	(1,706)	(1,579)
Net income (loss) attributable to parent	(129)	4
NPC
Operating revenue	415	370
Operating expenses:
Cost of sales	212	165
Operations and maintenance	65	63
Depreciation and amortization	103	101
Property and other taxes	13	12
Total operating expenses	393	341
Operating income	22	29
Other income (expense):
Interest expense	(38)	(38)
Allowance for borrowed funds	1	1
Allowance for equity funds	3	1
Interest and dividend income	9	5
Other, net	1	4
Total other income (expense)	(24)	(27)
Net income (loss) attributable to parent	$ (2)	$ 2

Consolidated Statements of Op_5

Consolidated Statements of Operations (Unaudited) - SPPC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Total operating revenue	$ 6,030	$ 6,081
Cost of sales	1,460	1,569
Total operating expenses	4,794	4,748
Operating income	1,236	1,333
Interest expense	(532)	(530)
Allowance for equity funds	38	26
Interest and dividend income	23	21
Other, net	5	8
Total other income (expense)	(1,706)	(1,579)
Income (loss) before income tax expense (benefit) and equity income (loss)	(470)	(246)
Income tax benefit	(507)	(535)
Net income (loss) attributable to parent	(129)	4
SPPC
Total operating revenue	279	220
Operations and maintenance	41	36
Depreciation and amortization	36	36
Property and other taxes	6	6
Total operating expenses	241	181
Operating income	38	39
Interest expense	(13)	(14)
Capitalized interest	1	0
Allowance for equity funds	2	1
Interest and dividend income	3	2
Other, net	2	4
Total other income (expense)	(5)	(7)
Income (loss) before income tax expense (benefit) and equity income (loss)	33	32
Income tax benefit	5	4
Net income (loss) attributable to parent	28	28
SPPC | Regulated electric
Total operating revenue	227	181
Cost of sales	124	82
SPPC | Regulated natural gas
Total operating revenue	52	39
Cost of sales	$ 34	$ 21

Consolidated Statements of Op_6

Consolidated Statements of Operations (Unaudited) - EEGH - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating revenue	$ 6,030	$ 6,081
Operating expenses:
Total operating expenses	4,794	4,748
Operating income	1,236	1,333
Other income (expense):
Interest expense	(532)	(530)
Allowance for equity funds	38	26
Other, net	5	8
Total other income (expense)	(1,706)	(1,579)
Income (loss) before income tax expense (benefit) and equity income (loss)	(470)	(246)
Income tax benefit	(507)	(535)
Equity income (loss)	(57)	(179)
Net (loss) income	(20)	110
Net income attributable to noncontrolling interests	109	106
Net income (loss) attributable to parent	(129)	4
EEGH
Operating revenue	482	486
Operating expenses:
Excess gas	(1)	0
Operations and maintenance	118	124
Depreciation and amortization	85	80
Property and other taxes	29	39
Total operating expenses	231	243
Operating income	251	243
Other income (expense):
Interest expense	(36)	(44)
Allowance for equity funds	2	2
Other, net	(1)	1
Total other income (expense)	(35)	(41)
Income (loss) before income tax expense (benefit) and equity income (loss)	216	202
Income tax benefit	30	27
Equity income (loss)	19	16
Net (loss) income	205	191
Net income attributable to noncontrolling interests	111	102
Net income (loss) attributable to parent	$ 94	$ 89

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (20)	$ 110
Other comprehensive (loss) income, net of tax:
Unrecognized amounts on retirement benefits, net of tax	15	7
Foreign currency translation adjustment	(110)	91
Unrealized gains (losses) on cash flow hedges, net of tax	77	14
Total other comprehensive (loss) income, net of tax	(18)	112
Comprehensive (loss) income	(38)	222
Comprehensive income attributable to noncontrolling interests	109	106
Comprehensive income (loss) attributable to parent	$ (147)	$ 116

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Unrecognized amounts on retirement benefits, tax	$ 3	$ 4
Unrealized gains (losses) on cash flow hedges, tax	28	5
EEGH
Unrecognized amounts on retirement benefits, tax	0	0
Unrealized gains (losses) on cash flow hedges, tax	$ 1	$ 3

Consolidated Statements of Co_3

Consolidated Statements of Comprehensive Income (Unaudited) - EEGH - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Net (loss) income	$ (20)	$ 110
Other comprehensive (loss) income, net of tax:
Unrecognized amounts on retirement benefits, net of tax	15	7
Unrealized gains (losses) on cash flow hedges, net of tax	77	14
Total other comprehensive (loss) income, net of tax	(18)	112
Comprehensive (loss) income	(38)	222
Comprehensive income attributable to noncontrolling interests	109	106
Comprehensive income (loss) attributable to parent	(147)	116
EEGH
Net (loss) income	205	191
Other comprehensive (loss) income, net of tax:
Unrecognized amounts on retirement benefits, net of tax	1	2
Unrealized gains (losses) on cash flow hedges, net of tax	4	10
Total other comprehensive (loss) income, net of tax	5	12
Comprehensive (loss) income	210	203
Comprehensive income attributable to noncontrolling interests	111	106
Comprehensive income (loss) attributable to parent	$ 99	$ 97

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity (Unaudited) - USD ($) $ in Millions	Total	Preferred Stock	Common Stock	Additional Paid-in Capital	Long-term Income Tax Receivable	Retained Earnings	Accumulated Other Comprehensive (Loss) Income, Net	Noncontrolling Interest
Balance at Dec. 31, 2020	$ 46,977	$ 3,750	$ 0	$ 6,377	$ (658)	$ 35,093	$ (1,552)	$ 3,967
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	110					4		106
Other comprehensive income (loss)	112						112
Preferred stock dividend	(38)					(38)
Distributions to noncontrolling interests	(113)							(113)
Other equity transactions	3					1		2
Balance at Mar. 31, 2021	47,051	3,750	0	6,377	(658)	35,060	(1,440)	3,962
Balance at Dec. 31, 2021	50,589	1,650	0	6,374	(744)	40,754	(1,340)	3,895
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	(20)					(129)		109
Other comprehensive income (loss)	(18)						(18)
Preferred stock dividend	(16)					(16)
Distributions to noncontrolling interests	(116)							(116)
Other equity transactions	5					(1)		6
Balance at Mar. 31, 2022	$ 50,424	$ 1,650	$ 0	$ 6,374	$ (744)	$ 40,608	$ (1,358)	$ 3,894

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Equity (Unaudited) - PAC - USD ($) $ in Millions	Total	Accumulated Other Comprehensive (Loss) Income, Net	PAC	PACPreferred Stock	PACCommon Stock	PACAdditional Paid-in Capital	PACRetained Earnings	PACAccumulated Other Comprehensive (Loss) Income, Net
Balance at Dec. 31, 2020			$ 9,173	$ 2	$ 0	$ 4,479	$ 4,711	$ (19)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 4		169				169
Other comprehensive income (loss)	112	$ 112
Balance at Mar. 31, 2021			9,342	2	0	4,479	4,880	(19)
Balance at Dec. 31, 2021	46,694		9,913	2	0	4,479	5,449	(17)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(129)		130				130
Other comprehensive income (loss)	(18)	$ (18)	1					1
Balance at Mar. 31, 2022	$ 46,530		$ 10,044	$ 2	$ 0	$ 4,479	$ 5,579	$ (16)

Statements of Changes in Shareh

Statements of Changes in Shareholder's Equity (Unaudited) - MEC - USD ($) $ in Millions	Total	MEC	MECCommon Stock	MECAdditional Paid-in Capital	MECRetained Earnings
Balance at Dec. 31, 2020		$ 8,065	$ 0	$ 561	$ 7,504
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 4	147			147
Balance at Mar. 31, 2021		8,212	0	561	7,651
Balance at Dec. 31, 2021	46,694	8,960	0	561	8,399
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(129)	244			244
Balance at Mar. 31, 2022	$ 46,530	$ 9,204	$ 0	$ 561	$ 8,643

Consolidated Statements of Ch_3

Consolidated Statements of Changes in Member's Equity (Unaudited) - MidAmerican Funding LLC - USD ($) $ in Millions	Total	MidAmerican Funding, LLC	MidAmerican Funding, LLCAdditional Paid-in Capital	MidAmerican Funding, LLCRetained Earnings
Balance at Dec. 31, 2020		$ 8,919	$ 1,679	$ 7,240
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 4	144		144
Balance at Mar. 31, 2021		9,063	1,679	7,384
Balance at Dec. 31, 2021	46,694	9,801	1,679	8,122
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(129)	241		241
Balance at Mar. 31, 2022	$ 46,530	$ 10,042	$ 1,679	$ 8,363

Consolidated Statements of Ch_4

Consolidated Statements of Changes in Equity (Unaudited) - NPC - USD ($) $ in Millions	Total	NPC	NPCCommon Stock	NPCAdditional Paid-in Capital	NPCRetained Earnings	NPCAccumulated Other Comprehensive (Loss) Income, Net
Balance (shares) at Dec. 31, 2020			1,000
Balance at Dec. 31, 2020		$ 2,939	$ 0	$ 2,308	$ 634	$ (3)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 4	2			2
Balance (shares) at Mar. 31, 2021			1,000
Balance at Mar. 31, 2021		$ 2,941	$ 0	2,308	636	(3)
Balance (shares) at Dec. 31, 2021	76,000,000	1,000	1,000
Balance at Dec. 31, 2021	$ 46,694	$ 3,030	$ 0	2,308	724	(2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ (129)	$ (2)			(2)
Balance (shares) at Mar. 31, 2022	76,000,000	1,000	1,000
Balance at Mar. 31, 2022	$ 46,530	$ 3,028	$ 0	$ 2,308	$ 722	$ (2)

Consolidated Statements of Ch_5

Consolidated Statements of Changes in Equity (Unaudited) - SPPC - USD ($) $ in Millions	Total	SPPC	SPPCCommon Stock	SPPCAdditional Paid-in Capital	SPPCRetained Earnings	SPPCAccumulated Other Comprehensive (Loss) Income, Net
Balance (shares) at Dec. 31, 2020			1,000
Balance at Dec. 31, 2020		$ 1,411	$ 0	$ 1,111	$ 301	$ (1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 4	28			28
Balance (shares) at Mar. 31, 2021			1,000
Balance at Mar. 31, 2021		$ 1,439	$ 0	1,111	329	(1)
Balance (shares) at Dec. 31, 2021	76,000,000	1,000	1,000
Balance at Dec. 31, 2021	$ 46,694	$ 1,535	$ 0	1,111	425	(1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ (129)	28			28
Contributions		$ 130		130
Balance (shares) at Mar. 31, 2022	76,000,000	1,000	1,000
Balance at Mar. 31, 2022	$ 46,530	$ 1,693	$ 0	$ 1,241	$ 453	$ (1)

Consolidated Statements of Ch_6

Consolidated Statements of Changes in Equity (Unaudited) - EEGH - USD ($) $ in Millions	Total	EEGH	Member InterestsEEGH	Accumulated Other Comprehensive (Loss) Income, Net	Accumulated Other Comprehensive (Loss) Income, NetEEGH	Noncontrolling Interest	Noncontrolling InterestEEGH
Balance at Dec. 31, 2020	$ 46,977	$ 6,995	$ 2,957	$ (1,552)	$ (53)	$ 3,967	$ 4,091
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	110	191	89				102
Other comprehensive income (loss)	112	12		112	8		4
Contributions		11	11
Distributions		(131)	(22)				(109)
Balance at Mar. 31, 2021	47,051	7,078	3,035	(1,440)	(45)	3,962	4,088
Balance at Dec. 31, 2021	50,589	7,494	3,501	(1,340)	(43)	3,895	4,036
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(20)	205	94				111
Other comprehensive income (loss)	(18)	5		(18)	5
Distributions		(114)	0				(114)
Balance at Mar. 31, 2022	$ 50,424	$ 7,590	$ 3,595	$ (1,358)	$ (38)	$ 3,894	$ 4,033

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net (loss) income	$ (20)	$ 110
Adjustments to reconcile net (loss) income to net cash flows from operating activities:
Gains (losses) on marketable securities, net	1,257	1,118
Depreciation and amortization	1,022	927
Allowance for equity funds	(38)	(26)
Equity income, net of distributions	88	221
Changes in regulatory assets and liabilities	(42)	(9)
Deferred income taxes and investment tax credits, net	(203)	(135)
Other, net	6	9
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	333	(249)
Derivative collateral, net	85	14
Pension and other postretirement benefit plans	(11)	(21)
Accrued property, income and other taxes, net	(347)	(453)
Accounts payable and other liabilities	91	19
Net cash flows from operating activities	2,221	1,525
Cash flows from investing activities:
Capital expenditures	(1,553)	(1,295)
Purchases of marketable securities	(170)	(128)
Proceeds from sales of marketable securities	149	104
Equity method investments	(17)	(26)
Other, net	19	(29)
Net cash flows from investing activities	(1,572)	(1,374)
Cash flows from financing activities:
Repayments of BHE senior debt	0	(450)
Proceeds from subsidiary debt	405	0
Repayments of subsidiary debt	(193)	(26)
Net (repayments of) proceeds from short-term debt	(165)	409
Distributions to noncontrolling interests	(117)	(115)
Other, net	(240)	(9)
Net cash flows from financing activities	(310)	(191)
Effect of exchange rate changes	(1)	1
Net change in cash and cash equivalents and restricted cash and cash equivalents	338	(39)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	1,244	1,445
Cash and cash equivalents and restricted cash and cash equivalents at end of period	$ 1,582	$ 1,406

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows (Unaudited) - PAC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net income (loss)	$ (129)	$ 4
Adjustments to reconcile net (loss) income to net cash flows from operating activities:
Allowance for equity funds	(38)	(26)
Changes in regulatory assets and liabilities	(42)	(9)
Deferred income taxes and investment tax credits, net	(203)	(135)
Other, net	6	9
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	333	(249)
Derivative collateral, net	85	14
Accrued property, income and other taxes, net	(347)	(453)
Accounts payable and other liabilities	91	19
Net cash flows from operating activities	2,221	1,525
Cash flows from investing activities:
Capital expenditures	(1,553)	(1,295)
Other, net	19	(29)
Net cash flows from investing activities	(1,572)	(1,374)
Cash flows from financing activities:
Net (repayments of) proceeds from short-term debt	(165)	409
Other, net	(240)	(9)
Net cash flows from financing activities	(310)	(191)
Net change in cash and cash equivalents and restricted cash and cash equivalents	338	(39)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	1,244	1,445
Cash and cash equivalents and restricted cash and cash equivalents at end of period	1,582	1,406
PAC
Cash flows from operating activities:
Net income (loss)	130	169
Adjustments to reconcile net (loss) income to net cash flows from operating activities:
Depreciation and amortization	280	264
Allowance for equity funds	(13)	(13)
Changes in regulatory assets and liabilities	(9)	(4)
Deferred income taxes and investment tax credits, net	19	13
Other, net	4	(2)
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	59	61
Inventories	(5)	7
Derivative collateral, net	22	7
Prepaid expenses	0	6
Accrued property, income and other taxes, net	15	12
Accounts payable and other liabilities	35	(51)
Net cash flows from operating activities	537	469
Cash flows from investing activities:
Capital expenditures	(374)	(439)
Other, net	3	(1)
Net cash flows from investing activities	(371)	(440)
Cash flows from financing activities:
Repayments of long-term debt	(9)	0
Net (repayments of) proceeds from short-term debt	0	2
Other, net	(2)	(1)
Net cash flows from financing activities	(11)	1
Net change in cash and cash equivalents and restricted cash and cash equivalents	155	30
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	186	19
Cash and cash equivalents and restricted cash and cash equivalents at end of period	$ 341	$ 49

Statements of Cash Flows (Unaud

Statements of Cash Flows (Unaudited) - MEC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net income (loss)	$ (129)	$ 4
Adjustments to reconcile net (loss) income to net cash flows from operating activities:
Allowance for equity funds	(38)	(26)
Deferred income taxes and investment tax credits, net	(203)	(135)
Other, net	6	9
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	333	(249)
Pension and other postretirement benefit plans	(11)	(21)
Accrued property, income and other taxes, net	(347)	(453)
Accounts payable and other liabilities	91	19
Net cash flows from operating activities	2,221	1,525
Cash flows from investing activities:
Capital expenditures	(1,553)	(1,295)
Purchases of marketable securities	(170)	(128)
Proceeds from sales of marketable securities	149	104
Other, net	19	(29)
Net cash flows from investing activities	(1,572)	(1,374)
Cash flows from financing activities:
Net (repayments of) proceeds from short-term debt	(165)	409
Other, net	(240)	(9)
Net cash flows from financing activities	(310)	(191)
Net change in cash and cash equivalents and restricted cash and cash equivalents	338	(39)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	1,244	1,445
Cash and cash equivalents and restricted cash and cash equivalents at end of period	1,582	1,406
MEC
Cash flows from operating activities:
Net income (loss)	244	147
Adjustments to reconcile net (loss) income to net cash flows from operating activities:
Depreciation and amortization	250	207
Amortization of utility plant to other operating expenses	9	8
Allowance for equity funds	(15)	(6)
Deferred income taxes and investment tax credits, net	16	154
Settlements of asset retirement obligations	(7)	(4)
Other, net	10	(18)
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	42	(299)
Inventories	49	46
Pension and other postretirement benefit plans	3	1
Accrued property, income and other taxes, net	(244)	(331)
Accounts payable and other liabilities	3	10
Net cash flows from operating activities	360	(85)
Cash flows from investing activities:
Capital expenditures	(459)	(298)
Purchases of marketable securities	(105)	(52)
Proceeds from sales of marketable securities	102	47
Other, net	1	0
Net cash flows from investing activities	(461)	(303)
Cash flows from financing activities:
Repayments of long-term debt	(1)	0
Net (repayments of) proceeds from short-term debt	0	387
Other, net	1	0
Net cash flows from financing activities	0	387
Net change in cash and cash equivalents and restricted cash and cash equivalents	(101)	(1)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	239	45
Cash and cash equivalents and restricted cash and cash equivalents at end of period	$ 138	$ 44

Consolidated Statements of Ca_3

Consolidated Statements of Cash Flows (Unaudited) - MidAmerican Funding LLC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net income (loss)	$ (129)	$ 4
Adjustments to reconcile net (loss) income to net cash flows from operating activities:
Allowance for equity funds	(38)	(26)
Deferred income taxes and investment tax credits, net	(203)	(135)
Other, net	6	9
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	333	(249)
Pension and other postretirement benefit plans	(11)	(21)
Accrued property, income and other taxes, net	(347)	(453)
Accounts payable and other liabilities	91	19
Net cash flows from operating activities	2,221	1,525
Cash flows from investing activities:
Capital expenditures	(1,553)	(1,295)
Purchases of marketable securities	(170)	(128)
Proceeds from sales of marketable securities	149	104
Other, net	19	(29)
Net cash flows from investing activities	(1,572)	(1,374)
Cash flows from financing activities:
Net (repayments of) proceeds from short-term debt	(165)	409
Net cash flows from financing activities	(310)	(191)
Net change in cash and cash equivalents and restricted cash and cash equivalents	338	(39)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	1,244	1,445
Cash and cash equivalents and restricted cash and cash equivalents at end of period	1,582	1,406
MidAmerican Funding, LLC
Cash flows from operating activities:
Net income (loss)	241	144
Adjustments to reconcile net (loss) income to net cash flows from operating activities:
Depreciation and amortization	250	207
Amortization of utility plant to other operating expenses	9	8
Allowance for equity funds	(15)	(6)
Deferred income taxes and investment tax credits, net	16	153
Settlements of asset retirement obligations	(7)	(4)
Other, net	10	(17)
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	43	(298)
Inventories	49	46
Pension and other postretirement benefit plans	3	1
Accrued property, income and other taxes, net	(245)	(332)
Accounts payable and other liabilities	(1)	6
Net cash flows from operating activities	353	(92)
Cash flows from investing activities:
Capital expenditures	(459)	(298)
Purchases of marketable securities	(105)	(52)
Proceeds from sales of marketable securities	102	47
Other, net	1	0
Net cash flows from investing activities	(461)	(303)
Cash flows from financing activities:
Repayments of long-term debt	(1)	0
Net change in note payable to affiliate	8	7
Net (repayments of) proceeds from short-term debt	0	387
Net cash flows from financing activities	7	394
Net change in cash and cash equivalents and restricted cash and cash equivalents	(101)	(1)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	240	46
Cash and cash equivalents and restricted cash and cash equivalents at end of period	$ 139	$ 45

Consolidated Statements of Ca_4

Consolidated Statements of Cash Flows (Unaudited) - NPC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net income (loss)	$ (129)	$ 4
Adjustments to reconcile net (loss) income to net cash flows from operating activities:
Allowance for equity funds	(38)	(26)
Changes in regulatory assets and liabilities	(42)	(9)
Deferred income taxes and investment tax credits, net	(203)	(135)
Other, net	6	9
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	333	(249)
Accrued property, income and other taxes, net	(347)	(453)
Accounts payable and other liabilities	91	19
Net cash flows from operating activities	2,221	1,525
Cash flows from investing activities:
Capital expenditures	(1,553)	(1,295)
Net cash flows from investing activities	(1,572)	(1,374)
Cash flows from financing activities:
Net (repayments of) proceeds from short-term debt	(165)	409
Other, net	(240)	(9)
Net cash flows from financing activities	(310)	(191)
Net change in cash and cash equivalents and restricted cash and cash equivalents	338	(39)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	1,244	1,445
Cash and cash equivalents and restricted cash and cash equivalents at end of period	1,582	1,406
NPC
Cash flows from operating activities:
Net income (loss)	(2)	2
Adjustments to reconcile net (loss) income to net cash flows from operating activities:
Depreciation and amortization	103	101
Allowance for equity funds	(3)	(1)
Changes in regulatory assets and liabilities	(8)	(15)
Deferred income taxes and investment tax credits, net	5	(10)
Deferred energy	(51)	41
Amortization of deferred energy	13	0
Other, net	4	(1)
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	33	41
Inventories	3	4
Accrued property, income and other taxes, net	(15)	3
Accounts payable and other liabilities	3	14
Net cash flows from operating activities	85	179
Cash flows from investing activities:
Capital expenditures	(189)	(106)
Net cash flows from investing activities	(189)	(106)
Cash flows from financing activities:
Proceeds from long-term debt	200	0
Net (repayments of) proceeds from short-term debt	(76)	0
Other, net	(4)	(5)
Net cash flows from financing activities	120	(5)
Net change in cash and cash equivalents and restricted cash and cash equivalents	16	68
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	45	36
Cash and cash equivalents and restricted cash and cash equivalents at end of period	$ 61	$ 104

Consolidated Statements of Ca_5

Consolidated Statements of Cash Flows (Unaudited) - SPPC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net income (loss)	$ (129)	$ 4
Adjustments to reconcile net (loss) income to net cash flows from operating activities:
Allowance for equity funds	(38)	(26)
Changes in regulatory assets and liabilities	(42)	(9)
Deferred income taxes and investment tax credits, net	(203)	(135)
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	333	(249)
Accrued property, income and other taxes, net	(347)	(453)
Accounts payable and other liabilities	91	19
Net cash flows from operating activities	2,221	1,525
Cash flows from investing activities:
Capital expenditures	(1,553)	(1,295)
Net cash flows from investing activities	(1,572)	(1,374)
Cash flows from financing activities:
Net (repayments of) proceeds from short-term debt	(165)	409
Other, net	(240)	(9)
Net cash flows from financing activities	(310)	(191)
Net change in cash and cash equivalents and restricted cash and cash equivalents	338	(39)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	1,244	1,445
Cash and cash equivalents and restricted cash and cash equivalents at end of period	1,582	1,406
SPPC
Cash flows from operating activities:
Net income (loss)	28	28
Adjustments to reconcile net (loss) income to net cash flows from operating activities:
Depreciation and amortization	36	36
Allowance for equity funds	(2)	(1)
Changes in regulatory assets and liabilities	(4)	(13)
Deferred income taxes and investment tax credits, net	(3)	4
Deferred energy	(7)	(18)
Amortization of deferred energy	23	(3)
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	12	8
Inventories	(6)	3
Accrued property, income and other taxes, net	7	(3)
Accounts payable and other liabilities	(21)	1
Net cash flows from operating activities	63	42
Cash flows from investing activities:
Capital expenditures	(83)	(61)
Net cash flows from investing activities	(83)	(61)
Cash flows from financing activities:
Net (repayments of) proceeds from short-term debt	(102)	10
Proceeds from equity contributions	130	0
Other, net	(2)	(2)
Net cash flows from financing activities	26	8
Net change in cash and cash equivalents and restricted cash and cash equivalents	6	(11)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	16	26
Cash and cash equivalents and restricted cash and cash equivalents at end of period	$ 22	$ 15

Consolidated Statements of Ca_6

Consolidated Statements of Cash Flows (Unaudited) - EEGH - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net (loss) income	$ (20)	$ 110
Adjustments to reconcile net (loss) income to net cash flows from operating activities:
Depreciation and amortization	1,022	927
Allowance for equity funds	(38)	(26)
Equity income, net of distributions	88	221
Changes in regulatory assets and liabilities	(42)	(9)
Deferred income taxes	(203)	(135)
Other, net	6	9
Changes in other operating assets and liabilities:
Trade receivables and other assets	333	(249)
Derivative collateral, net	85	14
Accrued property, income and other taxes	(347)	(453)
Accounts payable and other liabilities	91	19
Net cash flows from operating activities	2,221	1,525
Cash flows from investing activities:
Capital expenditures	(1,553)	(1,295)
Other, net	19	(29)
Net cash flows from investing activities	(1,572)	(1,374)
Cash flows from financing activities:
Net cash flows from financing activities	(310)	(191)
Net change in cash and cash equivalents and restricted cash and cash equivalents	338	(39)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	1,244	1,445
Cash and cash equivalents and restricted cash and cash equivalents at end of period	1,582	1,406
EEGH
Cash flows from operating activities:
Net (loss) income	205	191
Adjustments to reconcile net (loss) income to net cash flows from operating activities:
Losses on other items, net	1	0
Depreciation and amortization	85	80
Allowance for equity funds	(2)	(2)
Equity income, net of distributions	(8)	(5)
Changes in regulatory assets and liabilities	(14)	6
Deferred income taxes	27	30
Other, net	2	0
Changes in other operating assets and liabilities:
Trade receivables and other assets	44	(56)
Derivative collateral, net	2	2
Accrued property, income and other taxes	(29)	(25)
Accounts payable and other liabilities	28	20
Net cash flows from operating activities	341	241
Cash flows from investing activities:
Capital expenditures	(75)	(55)
Repayment of loans by affiliates	3	0
Loans to affiliates	(117)	0
Other, net	(5)	(1)
Net cash flows from investing activities	(194)	(56)
Cash flows from financing activities:
Repayment of notes payable, net	0	(9)
Distributions	(114)	(109)
Net cash flows from financing activities	(114)	(118)
Net change in cash and cash equivalents and restricted cash and cash equivalents	33	67
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	39	48
Cash and cash equivalents and restricted cash and cash equivalents at end of period	$ 72	$ 115

General

General	3 Months Ended
	Mar. 31, 2022
Segment Reporting Information [Line Items]
General	General Berkshire Hathaway Energy Company ("BHE") is a holding company that owns a highly diversified portfolio of locally managed and operated 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 and its subsidiaries ("PacifiCorp"), MidAmerican Funding, LLC and its subsidiaries ("MidAmerican Funding") (which primarily consists of MidAmerican Energy Company ("MidAmerican Energy")), NV Energy, Inc. and its subsidiaries ("NV Energy") (which primarily consists of Nevada Power Company and its subsidiaries ("Nevada Power") and Sierra Pacific Power Company and its subsidiaries ("Sierra Pacific")), Northern Powergrid Holdings Company and its subsidiaries ("Northern Powergrid") (which primarily consists of Northern Powergrid (Northeast) plc and Northern Powergrid (Yorkshire) plc), BHE Pipeline Group, LLC and its subsidiaries (which primarily consists of BHE GT&S, LLC and its subsidiaries ("BHE GT&S"), Northern Natural Gas Company ("Northern Natural Gas") and Kern River Gas Transmission Company ("Kern River")), BHE Transmission (which consists of BHE Canada Holdings Corporation and its subsidiaries ("BHE Canada") (which primarily consists of AltaLink, L.P. ("AltaLink")) and BHE U.S. Transmission, LLC and its subsidiaries), BHE Renewables, LLC and its subsidiaries ("BHE Renewables") and HomeServices of America, Inc. and its subsidiaries ("HomeServices"). The Company, through these locally managed and operated businesses, owns four utility companies in the U.S. serving customers in 11 states, two electricity distribution companies in Great Britain, five interstate natural gas pipeline companies and interests in a liquefied natural gas ("LNG") export, import and storage facility in the U.S., an electric transmission business in Canada, interests in electric transmission businesses in the U.S., a renewable energy business primarily investing in wind, solar, geothermal and hydroelectric projects, the largest residential real estate brokerage firm in the U.S. and one of the largest residential real estate brokerage franchise networks in the U.S. 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, 2022 and for the three-month periods ended March 31, 2022 and 2021. The results of operations for the three-month period ended March 31, 2022 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, 2021 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, 2022.
PAC
Segment Reporting Information [Line Items]
General	General PacifiCorp, which includes PacifiCorp and its subsidiaries, is a U.S. 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, 2022 and for the three-month periods ended March 31, 2022 and 2021. The Consolidated Statements of Comprehensive Income have been omitted as net income materially equals comprehensive income for the three-month periods ended March 31, 2022 and 2021. The results of operations for the three-month periods ended March 31, 2022 and 2021 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, 2021 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, 2022.
MEC
Segment Reporting Information [Line Items]
General	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, 2022, and for the three-month periods ended March 31, 2022 and 2021. The results of operations for the three-month periods ended March 31, 2022, 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, 2021, 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, 2022.
MidAmerican Funding, LLC
Segment Reporting Information [Line Items]
General	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, 2022, and for the three-month periods ended March 31, 2022 and 2021. The results of operations for the three-month periods ended March 31, 2022, 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, 2021, 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, 2022.
NPC
Segment Reporting Information [Line Items]
General	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 and its subsidiaries ("Sierra Pacific") and certain other subsidiaries. Nevada Power is a U.S. 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, 2022 and for the three-month periods ended March 31, 2022 and 2021. The Consolidated Statements of Comprehensive Income have been omitted as net income equals comprehensive income for the three-month periods ended March 31, 2022 and 2021. The results of operations for the three-month period ended March 31, 2022 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, 2021 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, 2022.
SPPC
Segment Reporting Information [Line Items]
General	General Sierra Pacific Power Company, together with its subsidiaries ("Sierra Pacific"), is a wholly owned subsidiary of NV Energy, Inc. ("NV Energy"), a holding company that also owns Nevada Power Company and its subsidiaries ("Nevada Power") and certain other subsidiaries. Sierra Pacific is a U.S. 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 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, 2022 and for the three-month periods ended March 31, 2022 and 2021. The Consolidated Statements of Comprehensive Income have been omitted as net income equals comprehensive income for the three-month periods ended March 31, 2022 and 2021. The results of operations for the three-month period ended March 31, 2022 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 Sierra Pacific's Annual Report on Form 10-K for the year ended December 31, 2021 describes the most significant accounting policies used in the preparation of the unaudited Consolidated 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, 2022.
EEGH
Segment Reporting Information [Line Items]
General	General Eastern Energy Gas Holdings, LLC is a holding company, and together with its subsidiaries ("Eastern Energy Gas") conducts business activities consisting of Federal Energy Regulatory Commission ("FERC")-regulated interstate natural gas transportation pipeline and underground storage operations in the eastern region of the U.S. and operates Cove Point LNG, LP ("Cove Point"), a liquefied natural gas ("LNG") export, import and storage facility. Eastern Energy Gas owns 100% of the general partner interest and 25% of the limited partnership interest in Cove Point. In addition, Eastern Energy Gas owns a 50% noncontrolling interest in Iroquois Gas Transmission System, L.P. ("Iroquois"), a 416-mile FERC-regulated interstate natural gas transportation pipeline. Eastern Energy Gas 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 the energy industry. 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, 2022 and for the three-month periods ended March 31, 2022 and 2021. The results of operations for the three-month period ended March 31, 2022 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 Eastern Energy Gas' Annual Report on Form 10-K for the year ended December 31, 2021 describes the most significant accounting policies used in the preparation of the unaudited Consolidated Financial Statements. There have been no significant changes in Eastern Energy Gas' assumptions regarding significant accounting estimates and policies during the three-month period ended March 31, 2022.

Cash and Cash Equivalents and R

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents	3 Months Ended
	Mar. 31, 2022
PAC
Condensed Cash Flow Statements, Captions [Line Items]
Cash and Cash Equivalents and Restricted Cash and Cash Equivalents	Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Cash equivalents consist of funds invested in money market mutual funds, U.S. 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 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 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, 2022 2021 Cash and cash equivalents $ 335 $ 179 Restricted cash and cash equivalents included in other current assets 4 4 Restricted cash included in other assets 2 3 Total cash and cash equivalents and restricted cash and cash equivalents $ 341 $ 186
MEC
Condensed Cash Flow Statements, Captions [Line Items]
Cash and Cash Equivalents and Restricted Cash and Cash Equivalents	Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Cash equivalents consist of funds invested in money market mutual funds, U.S. 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 restricted for wildlife preservation. A reconciliation of cash and cash equivalents and restricted cash and cash equivalents 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, 2022 2021 Cash and cash equivalents $ 131 $ 232 Restricted cash and cash equivalents in other current assets 7 7 Total cash and cash equivalents and restricted cash and cash equivalents $ 138 $ 239
MidAmerican Funding, LLC
Condensed Cash Flow Statements, Captions [Line Items]
Cash and Cash Equivalents and Restricted Cash and Cash Equivalents	Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Cash equivalents consist of funds invested in money market mutual funds, U.S. 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 restricted for wildlife preservation. A reconciliation of cash and cash equivalents and restricted cash and cash equivalents 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, 2022 2021 Cash and cash equivalents $ 132 $ 233 Restricted cash and cash equivalents in other current assets 7 7 Total cash and cash equivalents and restricted cash and cash equivalents $ 139 $ 240
NPC
Condensed Cash Flow Statements, Captions [Line Items]
Cash and Cash Equivalents and Restricted Cash and Cash Equivalents	Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Cash equivalents consist of funds invested in money market mutual funds, U.S. 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 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 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, 2022 2021 Cash and cash equivalents $ 47 $ 33 Restricted cash and cash equivalents included in other current assets 14 12 Total cash and cash equivalents and restricted cash and cash equivalents $ 61 $ 45
SPPC
Condensed Cash Flow Statements, Captions [Line Items]
Cash and Cash Equivalents and Restricted Cash and Cash Equivalents	Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Cash equivalents consist of funds invested in money market mutual funds, U.S. 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 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 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, 2022 2021 Cash and cash equivalents $ 15 $ 10 Restricted cash and cash equivalents included in other current assets 7 6 Total cash and cash equivalents and restricted cash and cash equivalents $ 22 $ 16

Property, Plant and Equipment,

Property, Plant and Equipment, Net	3 Months Ended
	Mar. 31, 2022
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 2022 2021 Regulated assets: Utility generation, transmission and distribution systems 5-80 years $ 90,560 $ 90,223 Interstate natural gas pipeline assets 3-80 years 17,526 17,423 108,086 107,646 Accumulated depreciation and amortization (33,248) (32,680) Regulated assets, net 74,838 74,966 Nonregulated assets: Independent power plants 2-50 years 7,932 7,665 Cove Point LNG facility 40 years 3,366 3,364 Other assets 2-30 years 2,688 2,666 13,986 13,695 Accumulated depreciation and amortization (3,146) (3,041) Nonregulated assets, net 10,840 10,654 Net operating assets 85,678 85,620 Construction work-in-progress 4,605 4,196 Property, plant and equipment, net $ 90,283 $ 89,816 Construction work-in-progress includes $4.3 billion as of March 31, 2022 and $3.8 billion as of December 31, 2021, related to the construction of regulated assets.
PAC
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 2022 2021 Utility Plant: Generation 15 - 59 years $ 13,688 $ 13,679 Transmission 60 - 90 years 7,914 7,894 Distribution 20 - 75 years 8,125 8,044 Intangible plant (1) 5 - 75 years 1,112 1,106 Other 5 - 60 years 1,563 1,539 Utility plant in-service 32,402 32,262 Accumulated depreciation and amortization (10,704) (10,507) Utility plant in-service, net 21,698 21,755 Other non-regulated, net of accumulated depreciation and amortization 14 - 95 years 18 18 Plant, net 21,716 21,773 Construction work-in-progress 1,365 1,141 Property, plant and equipment, net $ 23,081 $ 22,914 (1) Computer software costs included in intangible plant are initially assigned a depreciable life of 5 to 10 years.
MEC
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 2022 2021 Utility plant in-service, net: Generation 20-70 years $ 17,466 $ 17,397 Transmission 52-75 years 2,488 2,474 Electric distribution 20-75 years 4,713 4,661 Natural gas distribution 29-75 years 2,055 2,039 Utility plant in-service 26,722 26,571 Accumulated depreciation and amortization (7,555) (7,376) Utility plant in-service, net 19,167 19,195 Nonregulated property, net: Nonregulated property gross 20-50 years 7 7 Accumulated depreciation and amortization (1) (1) Nonregulated property, net 6 6 19,173 19,201 Construction work-in-progress 1,171 1,100 Property, plant and equipment, net $ 20,344 $ 20,301
MidAmerican Funding, LLC
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Net	Property, Plant and Equipment, NetRefer to Note 3 of MidAmerican Energy's Notes to Financial Statements.
NPC
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, 2022 2021 Utility plant: Generation 30 - 55 years $ 3,810 $ 3,793 Transmission 45 - 70 years 1,508 1,503 Distribution 20 - 65 years 3,979 3,920 General and intangible plant 5 - 65 years 831 836 Utility plant 10,128 10,052 Accumulated depreciation and amortization (3,478) (3,406) Utility plant, net 6,650 6,646 Other non-regulated, net of accumulated depreciation and amortization 45 years 1 1 Plant, net 6,651 6,647 Construction work-in-progress 341 244 Property, plant and equipment, net $ 6,992 $ 6,891
SPPC
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, 2022 2021 Utility plant: Electric generation 25 - 60 years $ 1,169 $ 1,163 Electric transmission 50 - 100 years 937 940 Electric distribution 20 - 100 years 1,885 1,846 Electric general and intangible plant 5 - 70 years 206 204 Natural gas distribution 35 - 70 years 445 438 Natural gas general and intangible plant 5 - 70 years 14 14 Common general 5 - 70 years 370 370 Utility plant 5,026 4,975 Accumulated depreciation and amortization (1,878) (1,854) Utility plant, net 3,148 3,121 Construction work-in-progress 238 219 Property, plant and equipment, net $ 3,386 $ 3,340
EEGH
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 2022 2021 Utility Plant: Interstate natural gas pipeline assets 21 - 44 years $ 8,776 $ 8,675 Intangible plant 5 - 10 years 110 110 Utility plant in-service 8,886 8,785 Accumulated depreciation and amortization (2,936) (2,901) Utility plant in-service, net 5,950 5,884 Nonutility Plant: LNG facility 40 years 4,477 4,475 Intangible plant 14 years 25 25 Nonutility plant in-service 4,502 4,500 Accumulated depreciation and amortization (454) (423) Nonutility plant in-service, net 4,048 4,077 Plant, net 9,998 9,961 Construction work-in-progress 185 239 Property, plant and equipment, net $ 10,183 $ 10,200 Construction work-in-progress includes $151 million and $209 million as of March 31, 2022 and December 31, 2021, respectively, related to the construction of utility plant.

Investments and Restricted Cash

Investments and Restricted Cash, Cash Equivalents and Investments	3 Months Ended
	Mar. 31, 2022
Restricted Cash and Cash Equivalents Items [Line Items]
Investments and Restricted Cash, Cash Equivalents and Investments	Investments and Restricted Cash, Cash Equivalents and Investments Investments and restricted cash, cash equivalents and investments consists of the following (in millions): As of March 31, December 31, 2022 2021 Investments: BYD Company Limited common stock $ 6,446 $ 7,693 Rabbi trusts 475 492 Other 315 305 Total investments 7,236 8,490 Equity method investments: BHE Renewables tax equity investments 4,812 4,931 Iroquois Gas Transmission System, L.P. 744 735 Electric Transmission Texas, LLC 598 595 JAX LNG, LLC 93 92 Bridger Coal Company 44 45 Other 152 156 Total equity method investments 6,443 6,554 Restricted cash, cash equivalents and investments: Quad Cities Station nuclear decommissioning trust funds 733 768 Other restricted cash and cash equivalents 150 148 Total restricted cash, cash equivalents and investments 883 916 Total investments and restricted cash, cash equivalents and investments $ 14,562 $ 15,960 Reflected as: Current assets $ 168 $ 172 Noncurrent assets 14,394 15,788 Total investments and restricted cash, cash equivalents and investments $ 14,562 $ 15,960 Investments Losses on marketable securities, net recognized during the period consists of the following (in millions): Three-Month Periods Ended March 31, 2022 2021 Unrealized losses recognized on marketable securities still held at the reporting date $ (1,257) $ (1,119) Net gains recognized on marketable securities sold during the period — 1 Losses on marketable securities, net $ (1,257) $ (1,118) Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Cash equivalents consist of funds invested in money market mutual funds, U.S. 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 restricted for 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 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, 2022 2021 Cash and cash equivalents $ 1,432 $ 1,096 Restricted cash and cash equivalents 129 127 Investments and restricted cash, cash equivalents and investments 21 21 Total cash and cash equivalents and restricted cash and cash equivalents $ 1,582 $ 1,244
EEGH
Restricted Cash and Cash Equivalents Items [Line Items]
Investments and Restricted Cash, Cash Equivalents and Investments	Investments and Restricted Cash and Cash Equivalents Investments and restricted cash and cash equivalents consists of the following (in millions): As of March 31, December 31, 2022 2021 Investments: Investment funds $ 15 $ 13 Equity method investments: Iroquois 408 399 Total investments 423 412 Restricted cash and cash equivalents: Customer deposits 18 17 Total restricted cash and cash equivalents 18 17 Total investments and restricted cash and cash equivalents $ 441 $ 429 Reflected as: Current assets $ 18 $ 17 Noncurrent assets 423 412 Total investments and restricted cash and cash equivalents $ 441 $ 429 Equity Method Investments Eastern Energy Gas, through a subsidiary, owns 50% of Iroquois, which owns and operates an interstate natural gas pipeline located in the states of New York and Connecticut. As of both March 31, 2022 and December 31, 2021, the carrying amount of Eastern Energy Gas' investments exceeded its share of underlying equity in net assets by $130 million. The difference reflects equity method goodwill and is not being amortized. Eastern Energy Gas received distributions from its investments of $11 million and $10 million for the three-month periods ended March 31, 2022 and 2021, respectively. Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Cash equivalents consist of funds invested in money market mutual funds, U.S. 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 of customer deposits as allowed under the FERC gas tariffs. A reconciliation of cash and cash equivalents and restricted cash and cash equivalents 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, 2022 2021 Cash and cash equivalents $ 54 $ 22 Restricted cash and cash equivalents included in other current assets 18 17 Total cash and cash equivalents and restricted cash and cash equivalents $ 72 $ 39

Regulatory Matters

Regulatory Matters	3 Months Ended
	Mar. 31, 2022
EEGH
Schedule Of Regulatory Assets and Liabilities [Line Items]
Regulatory Matters	Regulatory MattersIn September 2021, Eastern Gas Transmission and Storage, Inc. ("EGTS") filed a general rate case for its FERC-jurisdictional services, with proposed rates to be effective November 1, 2021. EGTS' previous general rate case was settled in 1998. EGTS proposed an annual cost-of-service of approximately $1.1 billion, and requested increases in various rates, including general system storage rates by 85% and general system transportation rates by 60%. In October 2021, the FERC issued an order that accepted the November 1, 2021 effective date for certain changes in rates, while suspending the other changes for five months following the proposed effective date, until April 1, 2022, subject to refund and the outcome of hearing procedures. This matter is pending.

Recent Financing Transactions

Recent Financing Transactions	3 Months Ended
	Mar. 31, 2022
Debt Instrument [Line Items]
Recent Financing Transactions	Recent Financing Transactions Long-Term Debt In April 2022, BHE issued $1 billion of its 4.6% Senior Notes due 2053 and intends to use the net proceeds for general corporate purposes, which may include repaying a portion of BHE's outstanding commercial paper obligations and redeeming a portion of its 4.00% Perpetual Preferred Stock issued to certain subsidiaries of Berkshire Hathaway. In April 2022, Sierra Pacific purchased the following series of bonds that were held by the public: $30 million of its variable-rate tax-exempt Water Facilities Refunding Revenue Bonds, Series 2016C, due 2036; $25 million of its variable-rate tax-exempt Water Facilities Refunding Revenue Bonds, Series 2016D, due 2036; $25 million of its variable-rate tax-exempt Water Facilities Refunding Revenue Bonds, Series 2016E, due 2036; $75 million of its variable-rate tax-exempt Water Facilities Refunding Revenue Bonds, Series 2016F, due 2036; $20 million of its variable-rate tax-exempt Water Facilities Refunding Revenue Bonds, Series 2016G, due 2036; and $30 million of its variable-rate tax-exempt Pollution Control Refunding Revenue Bonds, Series 2016B, due 2029. Sierra Pacific purchased these bonds as required by the bond indentures. Sierra Pacific is holding these bonds and can re-offer them at a future date. In April 2022, Northern Powergrid (Northeast) plc issued £350 million of its 3.25% bonds due 2052 and intends to use the net proceeds for general corporate purposes. In January 2022, Nevada Power entered into a $300 million secured delayed draw term loan facility maturing in January 2024. Amounts borrowed under the facility bear interest at variable rates based on the Secured Overnight Financing Rate or a base rate, at Nevada Power's option, plus a pricing margin. In January 2022, Nevada Power borrowed $200 million under the facility at an initial interest rate of 0.55%. Nevada Power may draw all or none of the remaining unused commitment through June 2022. Nevada Power used the proceeds to repay amounts outstanding under its existing secured credit facility and for general corporate purposes.
NPC
Debt Instrument [Line Items]
Recent Financing Transactions	Recent Financing Transactions Long-Term Debt In January 2022, Nevada Power entered into a $300 million secured delayed draw term loan facility maturing in January 2024. Amounts borrowed under the facility bear interest at variable rates based on the Secured Overnight Financing Rate or a base rate, at Nevada Power's option, plus a pricing margin. In January 2022, Nevada Power borrowed $200 million under the facility at an initial interest rate of 0.55%. Nevada Power may draw all or none of the remaining unused commitment through June 2022. Nevada Power used the proceeds to repay amounts outstanding under its existing secured credit facility and for general corporate purposes.
SPPC
Debt Instrument [Line Items]
Recent Financing Transactions	Recent Financing Transactions Long-Term Debt In April 2022, Sierra Pacific entered into a $200 million unsecured loan with NV Energy payable upon demand. The net proceeds were used to purchase certain tax-exempt refunding revenue bond obligations that were subject to mandatory purchase by Sierra Pacific in April 2022. The loan has an underlying variable interest rate based on 30-day U.S. dollar deposits offered on the London Interbank Offer Rate market plus a spread of 0.75%. In April 2022, Sierra Pacific purchased the following series of bonds that were held by the public: $30 million of its variable-rate tax-exempt Water Facilities Refunding Revenue Bonds, Series 2016C, due 2036; $25 million of its variable-rate tax-exempt Water Facilities Refunding Revenue Bonds, Series 2016D, due 2036; $25 million of its variable-rate tax-exempt Water Facilities Refunding Revenue Bonds, Series 2016E, due 2036; $75 million of its variable-rate tax-exempt Water Facilities Refunding Revenue Bonds, Series 2016F, due 2036; $20 million of its variable-rate tax-exempt Water Facilities Refunding Revenue Bonds, Series 2016G, due 2036; and $30 million of its variable-rate tax-exempt Pollution Control Refunding Revenue Bonds, Series 2016B, due 2029. Sierra Pacific purchased these bonds as required by the bond indentures. Sierra Pacific is holding these bonds and can re-offer them at a future date.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2022
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Income Taxes	Income Taxes The effective income tax rate for the three-month period ended March 31, 2022, is 108% and results from a $507 million income tax benefit associated with a $470 million pre-tax loss, primarily relating to a pre-tax unrealized loss of $1,247 million on the Company's investment in BYD Company Limited. The $507 million income tax benefit is primarily comprised of a $99 million benefit (21%) from the application of the statutory income tax rate to the pre-tax loss and a $339 million benefit (72%) from income tax credits. The effective income tax rate for the three-month period ended March 31, 2021, is 217% and results from a $535 million income tax benefit associated with a $246 million pre-tax loss, primarily relating to a pre-tax unrealized loss of $1,124 million on the Company's investment in BYD Company Limited. The $535 million income tax benefit is primarily comprised of a $52 million benefit (21%) from the application of the statutory income tax rate to the pre-tax loss, a $334 million benefit (136%) from income tax credits and a $51 million benefit (21%) from state income tax benefits, net of federal income tax impacts. 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, 2022 2021 Federal statutory income tax rate 21 % 21 % Income tax credits 72 136 State income tax, net of federal income tax impacts (3) 21 Income tax effect of foreign income 3 6 Effects of ratemaking 8 10 Equity income 3 15 Noncontrolling interest 5 9 Other, net (1) (1) Effective income tax rate 108 % 217 % Income tax credits relate primarily to 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. PTCs for the three-month periods ended March 31, 2022 and 2021 totaled $338 million and $315 million, respectively. The Company's provision for income taxes has been computed on a stand-alone basis. Berkshire Hathaway includes the Company in its consolidated U.S. federal and Iowa state income tax returns and the majority of the Company's U.S. federal income tax is remitted to or received from Berkshire Hathaway. The Company made no payments for federal income taxes to Berkshire Hathaway for the three-month periods ended March 31, 2022 and 2021.
PAC
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Income Taxes	Income Taxes A reconciliation of the federal statutory income tax rate to the effective income tax rate applicable to income before income tax (benefit) expense is as follows: Three-Month Periods Ended March 31, 2022 2021 Federal statutory income tax rate 21 % 21 % State income tax, net of federal income tax benefit 3 3 Federal income tax credits (20) (20) Effects of ratemaking (1) (11) (13) Valuation allowance 6 — Other 3 2 Effective income tax rate 2 % (7) % (1) Effects of ratemaking is primarily attributable to activity associated with excess deferred income taxes. 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. PTCs for the three-month periods ended March 31, 2022 and 2021 totaled $26 million and $31 million, respectively. For the three-month period ended March 31, 2022 PacifiCorp recorded a valuation allowance related to state net operating loss carryforwards.
MEC
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Income Taxes	Income Taxes The effective income tax rate for the three-month period ended March 31, 2021, is 2,200% and results from a $154 million income tax benefit associated with a $7 million pretax loss. The $154 million income tax benefit is primarily comprised of a $2 million benefit (21%) from the application of the statutory income tax rate to the pretax loss and a $168 million benefit (2,400%) from income tax credits, partially offset by a $13 million expense (186%) from the effects of ratemaking. 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, 2022 2021 Federal statutory income tax rate 21 % 21 % Income tax credits (534) 2,400 State income tax, net of federal income tax impacts (21) (29) Effects of ratemaking (8) (186) Other, net — (6) Effective income tax rate (542) % 2,200 % 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. PTCs for the three-month periods ended March 31, 2022 and 2021 totaled $203 million and $151 million, respectively.
MidAmerican Funding, LLC
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Income Taxes	Income Taxes The effective income tax rate for the three-month period ended March 31, 2021, is 1,300% and results from a $156 million income tax benefit associated with a $12 million pretax loss. The $156 million income tax benefit is primarily comprised of a $3 million benefit (21%) from the application of the statutory income tax rate to the pretax loss and a $168 million benefit (1,400%) from income tax credits, partially offset by a $13 million expense (108%) from the effects of ratemaking. 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, 2022 2021 Federal statutory income tax rate 21 % 21 % Income tax credits (618) 1,400 State income tax, net of federal income tax impacts (24) (8) Effects of ratemaking (9) (108) Other, net — (5) Effective income tax rate (630) % 1,300 % 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 Funding 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. PTCs for the three-month periods ended March 31, 2022 and 2021 totaled $203 million and $151 million, respectively. Berkshire Hathaway includes BHE and subsidiaries in its U.S. 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 no cash payments for income tax to BHE for each of the three-month periods ended March 31, 2022 and 2021.
SPPC
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Income Taxes	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, 2022 2021 Federal statutory income tax rate 21 % 21 % Effects of ratemaking (7) (10) Other 1 2 Effective income tax rate 15 % 13 %
EEGH
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Income Taxes	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, 2022 2021 Federal statutory income tax rate 21 % 21 % State income tax, net of federal income tax benefit 5 3 Equity interest 2 2 Effects of ratemaking (4) (1) Noncontrolling interest (11) (11) Other, net 1 (1) Effective income tax rate 14 % 13 % For the period ended March 31, 2022, Eastern Energy Gas' reconciliation of the federal statutory income tax rate to the effective income tax rate is driven primarily by an absence of tax on income attributable to Cove Point's 75% noncontrolling interest. Eastern Energy Gas, as a subsidiary of BHE, is included in Berkshire Hathaway's U.S. federal income tax return. Consistent with established regulatory practice, Eastern Energy Gas' provisions for income tax have 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. Eastern Energy Gas made no cash payments for income tax to BHE for the three-month periods ended March 31, 2022 and 2021.

Employee Benefit Plans

Employee Benefit Plans	3 Months Ended
	Mar. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Employee Benefit Plans	Employee Benefit Plans Domestic Operations Net periodic benefit cost for the domestic pension and other postretirement benefit plans included the following components (in millions): Three-Month Periods Ended March 31, 2022 2021 Pension: Service cost $ 7 $ 7 Interest cost 19 20 Expected return on plan assets (27) (33) Settlement 2 — Net amortization 4 6 Net periodic benefit cost $ 5 $ — Other postretirement: Service cost $ 2 $ 2 Interest cost 5 5 Expected return on plan assets (7) (5) Net amortization — (1) Net periodic benefit cost $ — $ 1 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 $4 million, respectively, during 2022. As of March 31, 2022, $4 million and $3 million of contributions had been made to the domestic pension and other postretirement benefit plans, respectively. Foreign Operations Net periodic benefit credit for the United Kingdom pension plan included the following components (in millions): Three-Month Periods Ended March 31, 2022 2021 Service cost $ 4 $ 4 Interest cost 10 8 Expected return on plan assets (25) (28) Net amortization 6 14 Net periodic benefit credit $ (5) $ (2) Amounts other than the service cost for the United Kingdom pension plan are recorded in Other, net in the Consolidated Statements of Operations. Employer contributions to the United Kingdom pension plan are expected to be £12 million during 2022. As of March 31, 2022, £3 million, or $4 million, of contributions had been made to the United Kingdom pension plan.
PAC
Defined Benefit Plan Disclosure [Line Items]
Employee Benefit Plans	Employee Benefit Plans Net periodic benefit cost (credit) for the pension and other postretirement benefit plans included the following components (in millions): Three-Month Periods Ended March 31, 2022 2021 Pension: Service cost $ — $ — Interest cost 7 7 Expected return on plan assets (10) (13) Net amortization 4 5 Net periodic benefit cost (credit) $ 1 $ (1) Other postretirement: Service cost $ — $ — Interest cost 2 2 Expected return on plan assets (2) (2) Net amortization — — Net periodic benefit cost (credit) $ — $ —
MEC
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 cost for the plans of MidAmerican Energy and the aforementioned affiliates included the following components (in millions): Three-Month Periods Ended March 31, 2022 2021 Pension: Service cost $ 5 $ 5 Interest cost 5 6 Expected return on plan assets (7) (9) Settlement 2 — Net periodic benefit cost $ 5 $ 2 Other postretirement: Service cost $ 2 $ 2 Interest cost 2 2 Expected return on plan assets (4) (2) Net amortization — (1) Net periodic benefit cost $ — $ 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 $3 million, respectively, during 2022. As of March 31, 2022, $2 million and $1 million of contributions had been made to the pension and other postretirement benefit plans, respectively.
MidAmerican Funding, LLC
Defined Benefit Plan Disclosure [Line Items]
Employee Benefit Plans	Employee Benefit PlansRefer to Note 5 of MidAmerican Energy's Notes to Financial Statements.
NPC
Defined Benefit Plan Disclosure [Line Items]
Employee Benefit Plans	Employee Benefit PlansNevada 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 receivable from (payable to) NV Energy are included on the Consolidated Balance Sheets and consist of the following (in millions): As of March 31, December 31, 2022 2021 Qualified Pension Plan: Other non-current assets $ 42 $ 42 Non-Qualified Pension Plans: Other current liabilities (1) (1) Other long-term liabilities (8) (8) Other Postretirement Plans: Other non-current assets 8 8
SPPC
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. Sierra Pacific contributed $2 million to the Other Postretirement Plans for the three-month period ended March 31, 2022. 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 receivable from (payable to) NV Energy are included on the Consolidated Balance Sheets and consist of the following (in millions): As of March 31, December 31, 2022 2021 Qualified Pension Plan: Other non-current assets $ 63 $ 62 Non-Qualified Pension Plans: Other current liabilities (1) (1) Other long-term liabilities (7) (7) Other Postretirement Plans: Other long-term liabilities (8) (10)
EEGH
Defined Benefit Plan Disclosure [Line Items]
Employee Benefit Plans	Employee Benefit PlansEastern Energy Gas is a participant in benefit plans sponsored by MidAmerican Energy Company ("MidAmerican Energy"), an affiliate. The MidAmerican Energy Company Retirement Plan includes a qualified pension plan that provides pension benefits for eligible employees. The MidAmerican Energy Company Welfare Benefit Plan provides certain postretirement health care and life insurance benefits for eligible retirees on behalf of Eastern Energy Gas. Eastern Energy Gas contributed $3 million to the MidAmerican Energy Company Retirement Plan and $1 million to the MidAmerican Energy Company Welfare Benefit Plan for the three-month period ended March 31, 2022. Amounts attributable to Eastern Energy Gas were allocated from MidAmerican Energy in accordance with the intercompany administrative service agreement. 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. As of both March 31, 2022 and December 31, 2021, Eastern Energy Gas' amount due to MidAmerican Energy associated with these plans and reflected in other long-term liabilities on the Consolidated Balance Sheets was $95 million.

Risk Management and Hedging Act

Risk Management and Hedging Activities	3 Months Ended
	Mar. 31, 2022
PAC
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 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, 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 and report on 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, futures, 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 7 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): Derivative Contracts - Other Other Current Other Current Long-term Assets Assets Liabilities Liabilities Total As of March 31, 2022 Not designated as hedging contracts (1) : Commodity assets $ 165 $ 37 $ 6 $ (1) $ 207 Commodity liabilities (3) — (9) — (12) Total 162 37 (3) (1) 195 Total derivatives 162 37 (3) (1) 195 Cash collateral payable (17) — — — (17) Total derivatives - net basis $ 145 $ 37 $ (3) $ (1) $ 178 As of December 31, 2021 Not designated as hedging contracts (1) : Commodity assets $ 81 $ 21 $ 2 $ — $ 104 Commodity liabilities (5) (1) (38) (7) (51) Total 76 20 (36) (7) 53 Total derivatives 76 20 (36) (7) 53 Cash collateral receivable — — 5 — 5 Total derivatives - net basis $ 76 $ 20 $ (31) $ (7) $ 58 (1) PacifiCorp's commodity derivatives are generally included in rates. As of March 31, 2022 a regulatory liability of $195 million was recorded related to the net derivative asset of $195 million. As of December 31, 2021 a regulatory liability of $53 million was recorded related to the net derivative asset of $53 million. 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, 2022 2021 Beginning balance $ (53) $ 17 Changes in fair value recognized in regulatory assets (168) (17) Net losses reclassified to operating revenue (3) — Net gains reclassified to energy costs 29 — Ending balance $ (195) $ — 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 2022 2021 Electricity purchases, net Megawatt hours 1 2 Natural gas purchases Decatherms 105 106 Credit Risk PacifiCorp is exposed to counterparty credit risk associated with wholesale energy supply and marketing activities with other utilities, energy marketing companies, financial institutions and other market participants. Credit risk may be concentrated to the extent PacifiCorp's counterparties have similar economic, industry or other characteristics and due to direct or indirect relationships among the counterparties. Before entering into a transaction, PacifiCorp analyzes the financial condition of each significant wholesale counterparty, establishes limits on the amount of unsecured credit to be extended to each counterparty and evaluates the appropriateness of unsecured credit limits on an ongoing basis. To further mitigate wholesale counterparty credit risk, PacifiCorp enters into netting and collateral arrangements that may include margining and cross-product netting agreements and obtains third‑party guarantees, letters of credit and cash deposits. If required, PacifiCorp exercises rights under these arrangements, including calling on the counterparty's credit support arrangement. Collateral and Contingent Features In accordance with industry practice, certain wholesale agreements, including derivative contracts, contain credit support provisions that in part base certain collateral requirements on credit ratings for senior unsecured debt as reported by one or more of the recognized credit rating agencies. These agreements 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" if there is a material adverse change in PacifiCorp's creditworthiness. These rights can vary by contract and by counterparty. As of March 31, 2022, PacifiCorp's credit ratings for its senior secured debt and its issuer credit ratings for senior unsecured debt from the recognized credit rating agencies were investment grade. The aggregate fair value of PacifiCorp's derivative contracts in liability positions with specific credit-risk-related contingent features totaled $10 million and $37 million as of March 31, 2022 and December 31, 2021, respectively, for which PacifiCorp had posted collateral of $— million and $5 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, 2022 and December 31, 2021, PacifiCorp would have been required to post $2 million and $23 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.
NPC
Derivative [Line Items]
Risk Management and Hedging Activities	Risk Management and Hedging Activities Nevada Power is exposed to the impact of market fluctuations in commodity prices and interest rates. Nevada Power is principally exposed to electricity, natural gas and coal market fluctuations primarily through Nevada Power's obligation to serve retail customer load in its regulated service territory. Nevada Power'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, generating facility availability, customer usage, storage, and transmission and transportation constraints. The actual cost of fuel and purchased power is recoverable through the deferred energy mechanism. Interest rate risk exists on variable-rate debt and future debt issuances. Nevada Power does not engage in proprietary trading activities. Nevada Power has established a risk management process that is designed to identify, assess, manage and report on each of the various types of risk involved in its business. To mitigate a portion of its commodity price risk, Nevada Power uses commodity derivative contracts, which may include forwards, futures, options, swaps and other agreements, to effectively secure future supply or sell future production generally at fixed prices. Nevada Power 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, Nevada Power may from time to time enter into interest rate derivative contracts, such as interest rate swaps or locks, to mitigate Nevada Power's exposure to interest rate risk. Nevada Power 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 Nevada Power's accounting policies related to derivatives. Refer to Note 7 for additional information on derivative contracts. The following table, which excludes contracts that have been designated as normal under the normal purchases and normal sales exception afforded by GAAP, summarizes the fair value of Nevada Power's derivative contracts, on a gross basis, and reconciles those amounts presented on a net basis on the Consolidated Balance Sheets (in millions): Derivative Other Contracts - Other Current Current Long-term Assets Liabilities Liabilities Total As of March 31, 2022 Not designated as hedging contracts (1) : Commodity liabilities $ — $ (88) $ (80) $ (168) Total derivative - net basis $ — $ (88) $ (80) $ (168) As of December 31, 2021 Not designated as hedging contracts (1) : Commodity assets $ 4 $ — $ — $ 4 Commodity liabilities — (55) (62) (117) Total derivative - net basis $ 4 $ (55) $ (62) $ (113) (1) Nevada Power's commodity derivatives not designated as hedging contracts are included in regulated rates. As of March 31, 2022 a regulatory asset of $168 million was recorded related to the net derivative liability of $168 million. As of December 31, 2021 a regulatory asset of $113 million was recorded related to the net derivative liability of $113 million. 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 2022 2021 Electricity purchases Megawatt hours 3 1 Natural gas purchases Decatherms 138 119 Credit Risk Nevada Power 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 Nevada Power's counterparties have similar economic, industry or other characteristics and due to direct and indirect relationships among the counterparties. Before entering into a transaction, Nevada Power 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, Nevada Power enters into netting and collateral arrangements that may include margining and cross-product netting agreements and obtain third-party guarantees, letters of credit and cash deposits. If required, Nevada Power exercises rights under these arrangements, including calling on the counterparty's credit support arrangement. Collateral and Contingent Features In accordance with industry practice, certain wholesale agreements, including derivative contracts, contain credit support provisions that in part base certain collateral requirements on credit ratings for senior unsecured debt as reported by one or more of the recognized credit rating agencies. These agreements 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" if there is a material adverse change in Nevada Power's creditworthiness. These rights can vary by contract and by counterparty. As of March 31, 2022, Nevada Power's credit ratings for its senior secured debt and its issuer credit ratings for senior unsecured debt from the recognized credit rating agencies were investment grade.
SPPC
Derivative [Line Items]
Risk Management and Hedging Activities	Risk Management and Hedging Activities Sierra Pacific is exposed to the impact of market fluctuations in commodity prices and interest rates. Sierra Pacific is principally exposed to electricity, natural gas and coal market fluctuations primarily through Sierra Pacific's obligation to serve retail customer load in its regulated service territory. Sierra Pacific'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, generating facility availability, customer usage, storage, and transmission and transportation constraints. The actual cost of fuel and purchased power is recoverable through the deferred energy mechanism. Interest rate risk exists on variable-rate debt and future debt issuances. Sierra Pacific does not engage in proprietary trading activities. Sierra Pacific has established a risk management process that is designed to identify, assess, manage and report on each of the various types of risk involved in its business. To mitigate a portion of its commodity price risk, Sierra Pacific uses commodity derivative contracts, which may include forwards, futures, options, swaps and other agreements, to effectively secure future supply or sell future production generally at fixed prices. Sierra Pacific 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, Sierra Pacific may from time to time enter into interest rate derivative contracts, such as interest rate swaps or locks, to mitigate Sierra Pacific's exposure to interest rate risk. Sierra Pacific 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 Sierra Pacific's accounting policies related to derivatives. Refer to Note 8 for additional information on derivative contracts. The following table, which excludes contracts that have been designated as normal under the normal purchases and normal sales exception afforded by GAAP, summarizes the fair value of Sierra Pacific's derivative contracts, on a gross basis, and reconciles those amounts presented on a net basis on the Consolidated Balance Sheets (in millions): Derivative Other Contracts - Other Current Current Long-term Assets Liabilities Liabilities Total As of March 31, 2022 Not designated as hedging contracts (1) : Commodity assets $ 1 $ — $ — $ 1 Commodity liabilities — (28) (25) (53) Total derivative - net basis $ 1 $ (28) $ (25) $ (52) As of December 31, 2021 Not designated as hedging contracts (1) : Commodity assets $ 2 $ — $ — $ 2 Commodity liabilities — (16) (19) (35) Total derivative - net basis $ 2 $ (16) $ (19) $ (33) (1) Sierra Pacific's commodity derivatives not designated as hedging contracts are included in regulated rates. As of March 31, 2022 a net regulatory asset of $52 million was recorded related to the net derivative liability of $52 million. As of December 31, 2021 a net regulatory asset of $33 million was recorded related to the net derivative liability of $33 million. 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 2022 2021 Electricity purchases Megawatt hours 1 1 Natural gas purchases Decatherms 60 53 Credit Risk Sierra Pacific 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 Sierra Pacific's counterparties have similar economic, industry or other characteristics and due to direct and indirect relationships among the counterparties. Before entering into a transaction, Sierra Pacific 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, Sierra Pacific enters into netting and collateral arrangements that may include margining and cross-product netting agreements and obtain third-party guarantees, letters of credit and cash deposits. If required, Sierra Pacific exercises rights under these arrangements, including calling on the counterparty's credit support arrangement. Collateral and Contingent Features In accordance with industry practice, certain wholesale agreements, including derivative contracts, contain credit support provisions that in part base certain collateral requirements on credit ratings for senior unsecured debt as reported by one or more of the recognized credit rating agencies. These agreements 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" if there is a material adverse change in Sierra Pacific's creditworthiness. These rights can vary by contract and by counterparty. As of March 31, 2022, Sierra Pacific's credit ratings for its senior secured debt and its issuer credit ratings for senior unsecured debt from the recognized credit rating agencies were investment grade.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2022
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, 2022: Assets: Commodity derivatives $ 13 $ 534 $ 59 $ (64) $ 542 Interest rate derivatives 11 58 25 — 94 Mortgage loans held for sale — 975 — — 975 Money market mutual funds 715 — — — 715 Debt securities: U.S. government obligations 225 — — — 225 International government obligations — 1 — — 1 Corporate obligations — 79 — — 79 Municipal obligations — 3 — — 3 Agency, asset and mortgage-backed obligations — 1 — — 1 Equity securities: U.S. companies 415 — — — 415 International companies 6,455 — — — 6,455 Investment funds 285 — — — 285 $ 8,119 $ 1,651 $ 84 $ (64) $ 9,790 Liabilities: Commodity derivatives $ (1) $ (88) $ (298) $ 69 $ (318) Foreign currency exchange rate derivatives — (3) — — (3) Interest rate derivatives — — (12) — (12) $ (1) $ (91) $ (310) $ 69 $ (333) Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Other (1) Total As of December 31, 2021: Assets: Commodity derivatives $ 5 $ 271 $ 73 $ (47) $ 302 Foreign currency exchange rate derivatives — 3 — — 3 Interest rate derivatives 1 3 20 — 24 Mortgage loans held for sale — 1,263 — — 1,263 Money market mutual funds 554 — — — 554 Debt securities: U.S. government obligations 232 — — — 232 International government obligations — 2 — — 2 Corporate obligations — 90 — — 90 Municipal obligations — 3 — — 3 Agency, asset and mortgage-backed obligations — 2 — — 2 Equity securities: U.S. companies 428 — — — 428 International companies 7,703 — — — 7,703 Investment funds 237 — — — 237 $ 9,160 $ 1,637 $ 93 $ (47) $ 10,843 Liabilities: Commodity derivatives $ (2) $ (113) $ (224) $ 73 $ (266) Foreign currency exchange rate derivatives — (3) — — (3) Interest rate derivatives — (7) (1) — (8) $ (2) $ (123) $ (225) $ 73 $ (277) (1) Represents netting under master netting arrangements and a net cash collateral receivable of $5 million and $26 million as of March 31, 2022 and December 31, 2021, respectively. 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 the 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 financial 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 2022: Beginning balance $ (151) $ 19 Changes included in earnings (1) (56) (6) Changes in fair value recognized in OCI 5 — Changes in fair value recognized in net regulatory assets (60) — Settlements 23 — Ending balance $ (239) $ 13 2021: Beginning balance $ 116 $ 62 Changes included in earnings (1) (6) (21) Changes in fair value recognized in OCI (1) — Changes in fair value recognized in net regulatory assets 16 — Settlements (1) — Ending balance $ 124 $ 41 (1) Changes included in earnings for interest rate derivatives are reported net of amounts related to the satisfaction of the associated loan commitment. 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, 2022 As of December 31, 2021 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 49,905 $ 52,246 $ 49,762 $ 57,189
PAC
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, 2022: Assets: Commodity derivatives $ — $ 207 $ — $ (25) $ 182 Money market mutual funds 319 — — — 319 Investment funds 28 — — — 28 $ 347 $ 207 $ — $ (25) $ 529 Liabilities - Commodity derivatives $ — $ (12) $ — $ 8 $ (4) As of December 31, 2021: Assets: Commodity derivatives $ — $ 104 $ — $ (8) $ 96 Money market mutual funds 181 — — — 181 Investment funds 27 — — — 27 $ 208 $ 104 $ — $ (8) $ 304 Liabilities - Commodity derivatives $ — $ (51) $ — $ 13 $ (38) (1) Represents netting under master netting arrangements and a net cash collateral payable of $17 million and a net cash collateral receivable of $5 million as of March 31, 2022 and December 31, 2021, respectively. 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 6 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, 2022 As of December 31, 2021 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 8,722 $ 9,423 $ 8,730 $ 10,374
MEC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements	Fair Value Measurements The carrying value of MidAmerican Energy's cash, certain cash equivalents, receivables, payables, accrued liabilities and short-term borrowings approximates fair value because of the short-term maturity of these instruments. MidAmerican Energy has various financial assets and liabilities that are measured at fair value on the Financial Statements using inputs from the three levels of the fair value hierarchy. A financial asset or liability classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The three levels are as follows: • Level 1 — Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that MidAmerican Energy has the ability to access at the measurement date. • Level 2 — Inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs). • Level 3 — Unobservable inputs reflect MidAmerican Energy's judgments about the assumptions market participants would use in pricing the asset or liability since limited market data exists. MidAmerican Energy develops these inputs based on the best information available, including its own data. The following table presents MidAmerican Energy's financial assets and liabilities recognized on the Balance Sheets and measured at fair value on a recurring basis (in millions): Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Other (1) Total As of March 31, 2022: Assets: Commodity derivatives $ — $ 66 $ 4 $ — $ 70 Money market mutual funds 132 — — — 132 Debt securities: U.S. government obligations 225 — — — 225 International government obligations — 1 — — 1 Corporate obligations — 79 — — 79 Municipal obligations — 3 — — 3 Agency, asset and mortgage-backed obligations — 1 — — 1 Equity securities: U.S. companies 415 — — — 415 International companies 9 — — — 9 Investment funds 23 — — — 23 $ 804 $ 150 $ 4 $ — $ 958 Liabilities - commodity derivatives $ (1) $ — $ — $ — $ (1) Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Other (1) Total As of December 31, 2021: Assets: Commodity derivatives $ — $ 32 $ 3 $ (7) $ 28 Money market mutual funds 228 — — — 228 Debt securities: U.S. government obligations 232 — — — 232 International government obligations — 2 — — 2 Corporate obligations — 90 — — 90 Municipal obligations — 3 — — 3 Agency, asset and mortgage-backed obligations — 2 — — 2 Equity securities: U.S. companies 428 — — — 428 International companies 10 — — — 10 Investment funds 18 — — — 18 $ 916 $ 129 $ 3 $ (7) $ 1,041 Liabilities - commodity derivatives $ — $ (6) $ (8) $ 12 $ (2) (1) Represents netting under master netting arrangements and a net cash collateral receivable of $— million and $5 million as of March 31, 2022 and December 31, 2021, respectively. 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, 2022 As of December 31, 2021 Carrying Fair Carrying Fair Long-term debt $ 7,726 $ 8,196 $ 7,721 $ 9,037
MidAmerican Funding, LLC
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, 2022 As of December 31, 2021 Carrying Fair Carrying Fair Long-term debt $ 7,966 $ 8,480 $ 7,961 $ 9,350
NPC
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, 2022: Assets: Money market mutual funds $ 43 $ — $ — $ 43 Investment funds 3 — — 3 $ 46 $ — $ — $ 46 Liabilities - commodity derivatives $ — $ — $ (168) $ (168) As of December 31, 2021: Assets: Commodity derivatives $ — $ — $ 4 $ 4 Money market mutual funds 34 — — 34 Investment funds 3 — — 3 $ 37 $ — $ 4 $ 41 Liabilities - commodity derivatives $ — $ — $ (117) $ (117) 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, 2022 and December 31, 2021, 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 investment funds 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, 2022 2021 Beginning balance $ (113) $ 15 Changes in fair value recognized in regulatory assets (56) 11 Settlements 1 1 Ending balance $ (168) $ 27 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, 2022 As of December 31, 2021 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 2,700 $ 2,985 $ 2,499 $ 3,067
SPPC
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 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 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 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, 2022: Assets: Commodity derivatives $ — $ — $ 1 $ 1 Money market mutual funds 13 — — 13 Investment funds 1 — — 1 $ 14 $ — $ 1 $ 15 Liabilities - commodity derivatives $ — $ — $ (53) $ (53) As of December 31, 2021: Assets: Commodity derivatives $ — $ — $ 2 $ 2 Money market mutual funds 10 — — 10 Investment funds 1 — — 1 $ 11 $ — $ 2 $ 13 Liabilities - commodity derivatives $ — $ — $ (35) $ (35) Sierra Pacific's investments in money market mutual funds and investment funds 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 Sierra Pacific'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, 2022 2021 Beginning balance $ (33) $ 7 Changes in fair value recognized in regulatory assets (19) 5 Ending balance $ (52) $ 12 Sierra Pacific's long-term debt is carried at cost on the Consolidated 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, 2022 As of December 31, 2021 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 1,164 $ 1,261 $ 1,164 $ 1,316
EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements	Fair Value Measurements The carrying value of Eastern Energy Gas' cash, certain cash equivalents, receivables, payables, accrued liabilities and short-term borrowings approximates fair value because of the short-term maturity of these instruments. Eastern Energy Gas 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 Eastern Energy Gas 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 Eastern Energy Gas' judgments about the assumptions market participants would use in pricing the asset or liability since limited market data exists. Eastern Energy Gas develops these inputs based on the best information available, including its own data. The following table presents Eastern Energy Gas' 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 Total As of March 31, 2022: Assets: Money market mutual funds $ 28 $ — $ — $ 28 Equity securities: Investment funds 15 — — 15 $ 43 $ — $ — $ 43 Liabilities: Commodity derivatives $ — $ (2) $ — $ (2) Foreign currency exchange rate derivatives — (3) — (3) $ — $ (5) $ — $ (5) As of December 31, 2021: Assets: Foreign currency exchange rate derivatives $ — $ 3 $ — $ 3 Equity securities: Investment funds 13 — — 13 $ 13 $ 3 $ — $ 16 Liabilities: Foreign currency exchange rate derivatives $ — $ (3) $ — $ (3) $ — $ (3) $ — $ (3) 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 purchase 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 Eastern Energy Gas transacts. When quoted prices for identical contracts are not available, Eastern Energy Gas uses forward price curves. Forward price curves represent Eastern Energy Gas' estimates of the prices at which a buyer or seller could contract today for delivery or settlement at future dates. Eastern Energy Gas 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 Eastern Energy Gas. Market price quotations are generally readily obtainable for the applicable term of Eastern Energy Gas' outstanding derivative contracts; therefore, Eastern Energy Gas' forward price curves reflect observable market quotes. Market price quotations for certain natural gas trading hubs are not as readily obtainable due to the length of the contracts. Given that limited market data exists for these contracts, as well as for those contracts that are not actively traded, Eastern Energy Gas 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. Eastern Energy Gas' long-term debt is carried at cost, including unamortized premiums, discounts and debt issuance costs as applicable, on the Consolidated Financial Statements. The fair value of Eastern Energy Gas' 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 Eastern Energy Gas' 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 Eastern Energy Gas' long-term debt (in millions): As of March 31, 2022 As of December 31, 2021 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 3,899 $ 3,911 $ 3,906 $ 4,266

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2022
Loss Contingencies [Line Items]
Commitments and Contingencies	Commitments and Contingencies 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. California and Oregon 2020 Wildfires In September 2020, a severe weather event resulting in high winds, low humidity and warm temperatures contributed to several major wildfires, real and personal property and natural resource damage, personal injuries and loss of life and widespread power outages in Oregon and Northern California (the "2020 Wildfires"). The wildfires spread across certain parts of PacifiCorp's service territory and surrounding areas across multiple counties in Oregon and California, including Siskiyou County, California; Jackson County, Oregon; Douglas County, Oregon; Marion County, Oregon; Lincoln County, Oregon; and Klamath County, Oregon burning over 500,000 acres in aggregate. Third party reports for these wildfires indicate over 2,000 structures destroyed, including residences; several structures damaged; multiple individuals injured; and several fatalities. Fire suppression costs estimated by various agencies total approximately $150 million. Investigations into the cause and origin of each wildfire are complex and ongoing and being conducted by various entities, including the United States Forest Service, the California Public Utilities Commission, the Oregon Department of Forestry, the Oregon Department of Justice, PacifiCorp and various experts engaged by PacifiCorp. Multiple lawsuits have been filed in Oregon and California, including a putative class action complaint in Oregon, on behalf of citizens and businesses who suffered damages from fires allegedly caused by PacifiCorp. Additionally, several insurance carriers have filed subrogation complaints in Oregon and California with allegations similar to those made in the aforementioned lawsuits. The final determinations of liability, however, will only be made following comprehensive investigations and litigation processes. In California, under inverse condemnation, courts have held that investor-owned utilities can be liable for real and personal property damages without the utility being found negligent and regardless of fault. California law also permits inverse condemnation plaintiffs to recover reasonable attorney fees and costs. In both Oregon and California, PacifiCorp has equipment in areas accessed through special use permits, easements or similar agreements that may contain provisions requiring it to pay for damages caused by its equipment regardless of fault. Even if inverse condemnation or other provisions do not apply, PacifiCorp could nevertheless be found liable for all damages proximately caused by negligence, including real and personal property and natural resource damage; fire suppression costs; personal injury and loss of life damages; and interest. PacifiCorp has accrued $136 million as its best estimate of the potential losses net of expected insurance recoveries associated with the 2020 Wildfires that are considered probable of being incurred. These accruals include estimated losses for fire suppression costs, real and personal property damage, personal injury damages and loss of life damages, but exclude estimated potential losses for natural resource damage as PacifiCorp is unable to reasonably estimate such losses at this time. It is reasonably possible that PacifiCorp will incur additional losses beyond the amounts accrued; however, PacifiCorp is currently unable to estimate the range of possible additional losses that could be incurred due to the number of properties and parties involved and the variation in those types of properties and lack of available details. To the extent losses beyond the amounts accrued are incurred, additional insurance coverage is expected to be available to cover at least a portion of the losses. 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 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 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 mainstem Klamath dams from PacifiCorp to the KRRC. The FERC approved partial transfer of the Klamath license in a July 2020 order, subject to the condition that PacifiCorp remains co-licensee. Under the amended KHSA, PacifiCorp did not agree to remain co-licensee during the surrender and removal process given concerns about liability protections for PacifiCorp and its customers. In November 2020, PacifiCorp entered a memorandum of agreement (the "MOA") with the KRRC, the Karuk Tribe, the Yurok Tribe and the States to continue implementation of the KHSA. The agreement required the States, PacifiCorp and KRRC to file a new license transfer application to remove PacifiCorp from the license for the Klamath Hydroelectric Project and add the States and KRRC as co-licensees for the purposes of surrender. In addition, the MOA provides for additional contingency funding of $45 million, equally split between PacifiCorp and the States, and for PacifiCorp and the States to equally share in any additional cost overruns in the unlikely event that dam removal costs exceed the $450 million in funding to ensure dam removal is complete. The MOA also requires PacifiCorp to cover the costs associated with certain pre-existing environmental conditions. In June 2021, the FERC approved transfer of the four mainstem Klamath dams from PacifiCorp to the KRRC and the States as co-licensees. In July 2021, the Oregon, Wyoming, Idaho and California state public utility commissions conditionally approved the required property transfer applications. In August 2021, PacifiCorp notified the Public Service Commission of Utah of the property transfer, however no formal approval is required in Utah. The transfer will be effective within 30 days following the issuance of a license surrender from the FERC for the project, which remains pending. In February 2022, the FERC staff issued a draft environmental impact statement for the project, concluding that dam removal is the preferred alternative. Comments on the draft were due in April 2022, and a final environmental impact statement is expected later in 2022. 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.
PAC
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. PacifiCorp 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. California and Oregon 2020 Wildfires In September 2020, a severe weather event resulting in high winds, low humidity and warm temperatures contributed to several major wildfires, real and personal property and natural resource damage, personal injuries and loss of life and widespread power outages in Oregon and Northern California (the "2020 Wildfires"). The wildfires spread across certain parts of PacifiCorp's service territory and surrounding areas across multiple counties in Oregon and California, including Siskiyou County, California; Jackson County, Oregon; Douglas County, Oregon; Marion County, Oregon; Lincoln County, Oregon; and Klamath County, Oregon burning over 500,000 acres in aggregate. Third party reports for these wildfires indicate over 2,000 structures destroyed, including residences; several structures damaged; multiple individuals injured; and several fatalities. Fire suppression costs estimated by various agencies total approximately $150 million. Investigations into the cause and origin of each wildfire are complex and ongoing and being conducted by various entities, including the United States Forest Service, the California Public Utilities Commission, the Oregon Department of Forestry, the Oregon Department of Justice, PacifiCorp and various experts engaged by PacifiCorp. Multiple lawsuits have been filed in Oregon and California, including a putative class action complaint in Oregon, on behalf of citizens and businesses who suffered damages from fires allegedly caused by PacifiCorp. Additionally, several insurance carriers have filed subrogation complaints in Oregon and California with allegations similar to those made in the aforementioned lawsuits. The final determinations of liability, however, will only be made following comprehensive investigations and litigation processes. In California, under inverse condemnation, courts have held that investor-owned utilities can be liable for real and personal property damages without the utility being found negligent and regardless of fault. California law also permits inverse condemnation plaintiffs to recover reasonable attorney fees and costs. In both Oregon and California, PacifiCorp has equipment in areas accessed through special use permits, easements or similar agreements that may contain provisions requiring it to pay for damages caused by its equipment regardless of fault. Even if inverse condemnation or other provisions do not apply, PacifiCorp could nevertheless be found liable for all damages proximately caused by negligence, including real and personal property and natural resource damage; fire suppression costs; personal injury and loss of life damages; and interest. PacifiCorp has accrued $136 million as its best estimate of the potential losses net of expected insurance recoveries associated with the 2020 Wildfires that are considered probable of being incurred. These accruals include estimated losses for fire suppression costs, real and personal property damage, personal injury damages and loss of life damages, but exclude estimated potential losses for natural resource damage as PacifiCorp is unable to reasonably estimate such losses at this time. It is reasonably possible that PacifiCorp will incur additional losses beyond the amounts accrued; however, PacifiCorp is currently unable to estimate the range of possible additional losses that could be incurred due to the number of properties and parties involved and the variation in those types of properties and lack of available details. To the extent losses beyond the amounts accrued are incurred, additional insurance coverage is expected to be available to cover at least a portion of the losses. Environmental Laws and Regulations PacifiCorp is subject to federal, state and local laws and regulations regarding air and water quality, renewable portfolio standards, emissions performance standards, climate change, 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 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 mainstem Klamath dams from PacifiCorp to the KRRC. The FERC approved partial transfer of the Klamath license in a July 2020 order, subject to the condition that PacifiCorp remains co-licensee. Under the amended KHSA, PacifiCorp did not agree to remain co-licensee during the surrender and removal process given concerns about liability protections for PacifiCorp and its customers. In November 2020, PacifiCorp entered a memorandum of agreement (the "MOA") with the KRRC, the Karuk Tribe, the Yurok Tribe and the States to continue implementation of the KHSA. The agreement required the States, PacifiCorp and KRRC to file a new license transfer application to remove PacifiCorp from the license for the Klamath Hydroelectric Project and add the States and KRRC as co-licensees for the purposes of surrender. In addition, the MOA provides for additional contingency funding of $45 million, equally split between PacifiCorp and the States, and for PacifiCorp and the States to equally share in any additional cost overruns in the unlikely event that dam removal costs exceed the $450 million in funding to ensure dam removal is complete. The MOA also requires PacifiCorp to cover the costs associated with certain pre-existing environmental conditions. In June 2021, the FERC approved transfer of the four mainstem Klamath dams from PacifiCorp to the KRRC and the States as co-licensees. In July 2021, the Oregon, Wyoming, Idaho and California state public utility commissions conditionally approved the required property transfer applications. In August 2021, PacifiCorp notified the Public Service Commission of Utah of the property transfer, however no formal approval is required in Utah. The transfer will be effective within 30 days following the issuance of a license surrender from the FERC for the project, which remains pending. In February 2022, the FERC staff issued a draft environmental impact statement for the project, concluding that dam removal is the preferred alternative. Comments on the draft were due in April 2022, and a final environmental impact statement is expected later in 2022. Guarantees PacifiCorp has entered into guarantees as part of the normal course of business and the sale or transfer of certain assets. These guarantees are not expected to have a material impact on PacifiCorp's consolidated financial results.
MEC
Loss Contingencies [Line Items]
Commitments and Contingencies	Commitments and Contingencies 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, 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 Funding, LLC
Loss Contingencies [Line Items]
Commitments and Contingencies	Commitments and ContingenciesMidAmerican 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.
NPC
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. Environmental Laws and Regulations Nevada Power 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 Nevada Power's current and future operations. Nevada Power believes it is in material compliance with all applicable laws and regulations.
SPPC
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 consolidated financial results. Environmental Laws and Regulations Sierra Pacific 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 Sierra Pacific's current and future operations. Sierra Pacific believes it is in material compliance with all applicable laws and regulations.
EEGH
Loss Contingencies [Line Items]
Commitments and Contingencies	Commitments and Contingencies Legal Matters Eastern Energy Gas is party to a variety of legal actions arising out of the normal course of business. Plaintiffs occasionally seek punitive or exemplary damages. Eastern Energy Gas does not believe that such normal and routine litigation will have a material impact on its consolidated financial results. Environmental Laws and Regulations Eastern Energy Gas is subject to federal, state and local laws and regulations regarding climate change, renewable portfolio standards, air and water quality, emissions performance standards, hazardous and solid waste disposal, protected species and other environmental matters that have the potential to impact Eastern Energy Gas' current and future operations. Eastern Energy Gas believes it is in material compliance with all applicable laws and regulations.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	3 Months Ended
	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	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 and nonregulated, with further disaggregation of regulated by line of business, including a reconciliation to the Company's reportable segment information included in Note 11 (in millions): For the Three-Month Period Ended March 31, 2022 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables BHE and Other (1) Total Customer Revenue: Regulated: Retail electric $ 1,185 $ 472 $ 599 $ — $ — $ — $ — $ — $ 2,256 Retail gas — 337 51 — — — — — 388 Wholesale 55 161 20 — — — — — 236 Transmission and 32 15 17 269 — 176 — — 509 Interstate pipeline — — — — 745 — — (41) 704 Other 20 — 1 — 1 — — — 22 Total Regulated 1,292 985 688 269 746 176 — (41) 4,115 Nonregulated — 2 — 15 278 7 169 133 604 Total Customer Revenue 1,292 987 688 284 1,024 183 169 92 4,719 Other revenue 5 18 5 31 11 — (2) 36 104 Total $ 1,297 $ 1,005 $ 693 $ 315 $ 1,035 $ 183 $ 167 $ 128 $ 4,823 For the Three-Month Period Ended March 31, 2021 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables BHE and Other (1) Total Customer Revenue: Regulated: Retail electric $ 1,145 $ 452 $ 511 $ — $ — $ — $ — $ — $ 2,108 Retail gas — 460 38 — — — — — 498 Wholesale 36 125 15 — 17 — — — 193 Transmission and 25 15 21 263 — 172 — — 496 Interstate pipeline — — — — 815 — — (41) 774 Other 23 — — — 2 — — — 25 Total Regulated 1,229 1,052 585 263 834 172 — (41) 4,094 Nonregulated — 10 — 10 237 8 166 187 618 Total Customer Revenue 1,229 1,062 585 273 1,071 180 166 146 4,712 Other revenue 13 5 6 27 22 — 24 40 137 Total $ 1,242 $ 1,067 $ 591 $ 300 $ 1,093 $ 180 $ 190 $ 186 $ 4,849 (1) The BHE and Other reportable segment represents amounts related principally to other entities, including MidAmerican Energy Services, LLC, corporate functions and intersegment eliminations. 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, 2022 2021 Customer Revenue: Brokerage $ 1,092 $ 1,022 Franchise 20 18 Total Customer Revenue 1,112 1,040 Mortgage and other revenue 95 192 Total $ 1,207 $ 1,232 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, 2022, by reportable segment (in millions): Performance obligations expected to be satisfied: Less than 12 months More than 12 months Total BHE Pipeline Group $ 2,878 $ 22,103 $ 24,981
PAC
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	Revenue from Contracts with Customers The following table summarizes PacifiCorp's revenue from contracts with customers ("Customer Revenue") by line of business, with further disaggregation of retail by customer class (in millions): Three-Month Periods Ended March 31, 2022 2021 Customer Revenue: Retail: Residential $ 505 $ 483 Commercial 370 359 Industrial 273 271 Other retail 37 32 Total retail 1,185 1,145 Wholesale 55 36 Transmission 32 25 Other Customer Revenue 20 23 Total Customer Revenue 1,292 1,229 Other revenue 5 13 Total operating revenue $ 1,297 $ 1,242
MEC
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	Revenue from Contracts with Customers The following table summarizes MidAmerican Energy's revenue from contracts with customers ("Customer Revenue") by line of business, with further disaggregation of retail by customer class, including a reconciliation to MidAmerican Energy's reportable segment information included in Note 9 (in millions): For the Three-Month Period Ended March 31, 2022 Electric Natural Gas Other Total Customer Revenue: Retail: Residential $ 168 $ 225 $ — $ 393 Commercial 74 88 — 162 Industrial 198 9 — 207 Natural gas transportation services — 14 — 14 Other retail (1) 32 1 — 33 Total retail 472 337 — 809 Wholesale 104 58 — 162 Multi-value transmission projects 15 — — 15 Other Customer Revenue — — 1 1 Total Customer Revenue 591 395 1 987 Other revenue 17 1 — 18 Total operating revenue $ 608 $ 396 $ 1 $ 1,005 For the Three-Month Period Ended March 31, 2021 Electric Natural Gas Other Total Customer Revenue: Retail: Residential $ 161 $ 308 $ — $ 469 Commercial 71 129 — 200 Industrial 190 12 — 202 Natural gas transportation services — 10 — 10 Other retail (1) 30 1 — 31 Total retail 452 460 — 912 Wholesale 74 51 — 125 Multi-value transmission projects 15 — — 15 Other Customer Revenue — — 10 10 Total Customer Revenue 541 511 10 1,062 Other revenue 4 1 — 5 Total operating revenue $ 545 $ 512 $ 10 $ 1,067 (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
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	Revenue from Contracts with CustomersRefer to Note 8 of MidAmerican Energy's Notes to Financial Statements.
NPC
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	Revenue from Contracts with Customers The following table summarizes Nevada Power's revenue from contracts with customers ("Customer Revenue") by line of business, with further disaggregation of retail by customer class (in millions): Three-Month Periods Ended March 31, 2022 2021 Customer Revenue: Retail: Residential $ 214 $ 196 Commercial 96 84 Industrial 78 63 Other 1 3 Total fully bundled 389 346 Distribution only service 5 5 Total retail 394 351 Wholesale, transmission and other 16 14 Total Customer Revenue 410 365 Other revenue 5 5 Total revenue $ 415 $ 370
SPPC
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	Revenue from Contracts with Customers The following table summarizes Sierra Pacific's revenue from contracts with customers ("Customer Revenue") by line of business, with further disaggregation of retail by customer class, including a reconciliation to Sierra Pacific's reportable segment information included in Note 11 (in millions): Three-Month Periods Ended March 31, 2022 2021 Electric Natural Gas Total Electric Natural Gas Total Customer Revenue: Retail: Residential $ 85 $ 32 $ 117 $ 71 $ 25 $ 96 Commercial 70 15 85 54 10 64 Industrial 49 4 53 39 3 42 Other 1 — 1 1 — 1 Total fully bundled 205 51 256 165 38 203 Distribution only service 1 — 1 1 — 1 Total retail 206 51 257 166 38 204 Wholesale, transmission and other 21 — 21 15 — 15 Total Customer Revenue 227 51 278 181 38 219 Other revenue — 1 1 — 1 1 Total revenue $ 227 $ 52 $ 279 $ 181 $ 39 $ 220
EEGH
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	Revenue from Contracts with Customers The following table summarizes Eastern Energy Gas' revenue from contracts with customers ("Customer Revenue") by regulated and nonregulated, with further disaggregation of regulated by line of business (in millions): Three-Month Periods Ended March 31, 2022 2021 Customer Revenue: Regulated: Gas transportation and storage $ 285 $ 279 Wholesale — 17 Total regulated 285 296 Nonregulated 203 190 Total Customer Revenue 488 486 Other revenue (6) — Total operating revenue $ 482 $ 486 Remaining Performance Obligations The following table summarizes Eastern Energy Gas' 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, 2022 (in millions): Performance obligations expected to be satisfied Less than 12 months More than 12 months Total Eastern Energy Gas $ 1,832 $ 17,061 $ 18,893

Components of Other Comprehensi

Components of Other Comprehensive Income (Loss), Net	3 Months Ended
	Mar. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Components of Other Comprehensive Income (Loss), Net	Components of Other Comprehensive Income (Loss), Net The following table shows the change in accumulated other comprehensive income (loss) by each component of other comprehensive income (loss), net of applicable income tax (in millions): Unrecognized Foreign Unrealized AOCI Amounts on Currency (Losses) Gains Attributable Retirement Translation on Cash Noncontrolling To BHE Benefits Adjustment Flow Hedges Interests Shareholders, Net Balance, December 31, 2020 $ (492) $ (1,062) $ (8) $ 10 $ (1,552) Other comprehensive income 7 91 14 — 112 Balance, March 31, 2021 $ (485) $ (971) $ 6 $ 10 $ (1,440) Balance, December 31, 2021 $ (318) $ (1,086) $ 59 $ 5 $ (1,340) Other comprehensive income (loss) 15 (110) 77 — (18) Balance, March 31, 2022 $ (303) $ (1,196) $ 136 $ 5 $ (1,358)
EEGH
Accumulated Other Comprehensive Income (Loss) [Line Items]
Components of Other Comprehensive Income (Loss), Net	Components of Accumulated Other Comprehensive Loss, Net The following table shows the change in accumulated other comprehensive loss by each component of other comprehensive income (loss), net of applicable income tax (in millions): Unrecognized Accumulated Amounts On Unrealized Other Retirement Losses on Cash Noncontrolling Comprehensive Benefits Flow Hedges Interests Loss, Net Balance, December 31, 2020 $ (12) $ (51) $ 10 $ (53) Other comprehensive income (loss) 2 10 (4) 8 Balance, March 31, 2021 $ (10) $ (41) $ 6 $ (45) Balance, December 31, 2021 $ (6) $ (42) $ 5 $ (43) Other comprehensive income 1 4 — 5 Balance, March 31, 2022 $ (5) $ (38) $ 5 $ (38)

Segment Information

Segment Information	3 Months Ended
	Mar. 31, 2022
Segment Reporting Information [Line Items]
Segment Information	Segment Information The Company's reportable segments with foreign operations include Northern Powergrid, whose business is principally in the United Kingdom, and BHE Transmission, whose business includes operations in Canada. 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, 2022 2021 Operating revenue: PacifiCorp $ 1,297 $ 1,242 MidAmerican Funding 1,005 1,067 NV Energy 693 591 Northern Powergrid 315 300 BHE Pipeline Group 1,035 1,093 BHE Transmission 183 180 BHE Renewables 167 190 HomeServices 1,207 1,232 BHE and Other (1) 128 186 Total operating revenue $ 6,030 $ 6,081 Depreciation and amortization: PacifiCorp $ 280 $ 264 MidAmerican Funding 250 207 NV Energy 140 136 Northern Powergrid 80 71 BHE Pipeline Group 131 118 BHE Transmission 58 58 BHE Renewables 65 60 HomeServices 15 11 BHE and Other (1) 3 2 Total depreciation and amortization $ 1,022 $ 927 Three-Month Periods Ended March 31, 2022 2021 Operating income: PacifiCorp $ 216 $ 234 MidAmerican Funding 100 48 NV Energy 62 70 Northern Powergrid 159 151 BHE Pipeline Group 538 618 BHE Transmission 83 81 BHE Renewables (2) 33 HomeServices 28 112 BHE and Other (1) 52 (14) Total operating income 1,236 1,333 Interest expense (532) (530) Capitalized interest 17 14 Allowance for equity funds 38 26 Interest and dividend income 23 21 Losses on marketable securities, net (1,257) (1,118) Other, net 5 8 Total loss before income tax benefit and equity loss $ (470) $ (246) Interest expense: PacifiCorp $ 106 $ 107 MidAmerican Funding 82 78 NV Energy 51 52 Northern Powergrid 32 33 BHE Pipeline Group 37 38 BHE Transmission 38 38 BHE Renewables 41 40 HomeServices 1 1 BHE and Other (1) 144 143 Total interest expense $ 532 $ 530 Loss on common shares: PacifiCorp $ 130 $ 169 MidAmerican Funding 241 144 NV Energy 29 34 Northern Powergrid 111 104 BHE Pipeline Group 322 383 BHE Transmission 62 59 BHE Renewables 104 16 HomeServices 21 84 BHE and Other (1) (1,165) (1,027) Total loss on common shares $ (145) $ (34) As of March 31, December 31, 2022 2021 Assets: PacifiCorp $ 27,999 $ 27,615 MidAmerican Funding 25,451 25,352 NV Energy 15,430 15,239 Northern Powergrid 9,175 9,326 BHE Pipeline Group 20,486 20,434 BHE Transmission 9,618 9,476 BHE Renewables 12,138 11,829 HomeServices 4,036 4,574 BHE and Other (1) 7,136 8,220 Total assets $ 131,469 $ 132,065 (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. Three-Month Periods Ended March 31, 2022 2021 Operating revenue by country: U.S. $ 5,534 $ 5,597 United Kingdom 315 300 Canada 181 177 Other — 7 Total operating revenue by country $ 6,030 $ 6,081 Loss before income tax benefit and equity loss by country: U.S. $ (654) $ (423) United Kingdom 139 132 Canada 46 39 Other (1) 6 Total loss before income tax benefit and equity loss by country $ (470) $ (246) The following table shows the change in the carrying amount of goodwill by reportable segment for the three-month period ended March 31, 2022 (in millions): BHE Pipeline Group PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Transmission BHE Renewables HomeServices Total December 31, 2021 $ 1,129 $ 2,102 $ 2,369 $ 992 $ 1,814 $ 1,563 $ 95 $ 1,586 $ 11,650 Acquisitions — — — — — — — 3 3 Foreign currency translation — — — (20) — 16 — — (4) March 31, 2022 $ 1,129 $ 2,102 $ 2,369 $ 972 $ 1,814 $ 1,579 $ 95 $ 1,589 $ 11,649
MEC
Segment Reporting Information [Line Items]
Segment Information	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, 2022 2021 Operating revenue: Regulated electric $ 608 $ 545 Regulated natural gas 396 512 Other 1 10 Total operating revenue $ 1,005 $ 1,067 Operating income: Regulated electric $ 51 $ 9 Regulated natural gas 49 39 Total operating income 100 48 Interest expense (78) (74) Allowance for borrowed funds 4 2 Allowance for equity funds 15 6 Other, net (3) 11 Income (loss) before income tax benefit $ 38 $ (7) As of March 31, December 31, Assets: Regulated electric $ 21,613 $ 21,385 Regulated natural gas 1,737 1,871 Other 1 1 Total assets $ 23,351 $ 23,257
MidAmerican Funding, LLC
Segment Reporting Information [Line Items]
Segment Information	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, 2022 2021 Operating revenue: Regulated electric $ 608 $ 545 Regulated natural gas 396 512 Other 1 10 Total operating revenue $ 1,005 $ 1,067 Operating income: Regulated electric $ 51 $ 9 Regulated natural gas 49 39 Total operating income 100 48 Interest expense (82) (78) Allowance for borrowed funds 4 2 Allowance for equity funds 15 6 Other, net (4) 10 Income (loss) before income tax benefit $ 33 $ (12) As of March 31, December 31, Assets (1) : Regulated electric $ 22,804 $ 22,576 Regulated natural gas 1,816 1,950 Other 6 5 Total assets $ 24,626 $ 24,531 (1) Assets by reportable segment reflect the assignment of goodwill to applicable reporting units.
SPPC
Segment Reporting Information [Line Items]
Segment Information	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, 2022 2021 Operating revenue: Regulated electric $ 227 $ 181 Regulated natural gas 52 39 Total operating revenue $ 279 $ 220 Operating income: Regulated electric $ 30 $ 31 Regulated natural gas 8 8 Total operating income 38 39 Interest expense (13) (14) Allowance for borrowed funds 1 — Allowance for equity funds 2 1 Interest and dividend income 3 2 Other, net 2 4 Income before income tax expense $ 33 $ 32 As of March 31, December 31, 2022 2021 Assets: Regulated electric $ 3,869 $ 3,829 Regulated natural gas 375 365 Other (1) 35 29 Total assets $ 4,279 $ 4,223 (1) Consists principally of cash and cash equivalents not included in either the regulated electric or regulated natural gas segments.

General (Policies)

General (Policies)	3 Months Ended
	Mar. 31, 2022
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Basis of Accounting	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, 2022 and for the three-month periods ended March 31, 2022 and 2021. The results of operations for the three-month period ended March 31, 2022 are not necessarily indicative of the results to be expected for the full year.
Use of Estimates	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.
PAC
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Basis of Accounting	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, 2022 and for the three-month periods ended March 31, 2022 and 2021. The Consolidated Statements of Comprehensive Income have been omitted as net income materially equals comprehensive income for the three-month periods ended March 31, 2022 and 2021. The results of operations for the three-month periods ended March 31, 2022 and 2021 are not necessarily indicative of the results to be expected for the full year.
Use of Estimates	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.
MEC
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Basis of Accounting	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, 2022, and for the three-month periods ended March 31, 2022 and 2021. The results of operations for the three-month periods ended March 31, 2022, are not necessarily indicative of the results to be expected for the full year.
Use of Estimates	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.
Cash and Cash Equivalents	Cash equivalents consist of funds invested in money market mutual funds, U.S. 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 restricted for wildlife preservation.
MidAmerican Funding, LLC
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Basis of Accounting	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, 2022, and for the three-month periods ended March 31, 2022 and 2021. The results of operations for the three-month periods ended March 31, 2022, are not necessarily indicative of the results to be expected for the full year.
Use of Estimates	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.
Cash and Cash Equivalents	Cash equivalents consist of funds invested in money market mutual funds, U.S. 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 restricted for wildlife preservation.
NPC
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Basis of Accounting	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, 2022 and for the three-month periods ended March 31, 2022 and 2021. The Consolidated Statements of Comprehensive Income have been omitted as net income equals comprehensive income for the three-month periods ended March 31, 2022 and 2021. The results of operations for the three-month period ended March 31, 2022 are not necessarily indicative of the results to be expected for the full year.
Use of Estimates	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.
SPPC
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Basis of Accounting	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, 2022 and for the three-month periods ended March 31, 2022 and 2021. The Consolidated Statements of Comprehensive Income have been omitted as net income equals comprehensive income for the three-month periods ended March 31, 2022 and 2021. The results of operations for the three-month period ended March 31, 2022 are not necessarily indicative of the results to be expected for the full year.
Use of Estimates	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.
EEGH
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Basis of Accounting	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, 2022 and for the three-month periods ended March 31, 2022 and 2021. The results of operations for the three-month period ended March 31, 2022 are not necessarily indicative of the results to be expected for the full year.
Use of Estimates	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.

Cash and Cash Equivalents and_2

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents (Tables)	3 Months Ended
	Mar. 31, 2022
Condensed Cash Flow Statements, Captions [Line Items]
Schedule of Cash and Cash Equivalents	A reconciliation of cash and cash equivalents and restricted cash and cash equivalents 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, 2022 2021 Cash and cash equivalents $ 1,432 $ 1,096 Restricted cash and cash equivalents 129 127 Investments and restricted cash, cash equivalents and investments 21 21 Total cash and cash equivalents and restricted cash and cash equivalents $ 1,582 $ 1,244
PAC
Condensed Cash Flow Statements, Captions [Line Items]
Schedule of Cash and Cash Equivalents	A reconciliation of cash and cash equivalents and restricted cash and cash equivalents 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, 2022 2021 Cash and cash equivalents $ 335 $ 179 Restricted cash and cash equivalents included in other current assets 4 4 Restricted cash included in other assets 2 3 Total cash and cash equivalents and restricted cash and cash equivalents $ 341 $ 186
MEC
Condensed Cash Flow Statements, Captions [Line Items]
Schedule of Cash and Cash Equivalents	A reconciliation of cash and cash equivalents and restricted cash and cash equivalents 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, 2022 2021 Cash and cash equivalents $ 131 $ 232 Restricted cash and cash equivalents in other current assets 7 7 Total cash and cash equivalents and restricted cash and cash equivalents $ 138 $ 239
MidAmerican Funding, LLC
Condensed Cash Flow Statements, Captions [Line Items]
Schedule of Cash and Cash Equivalents	A reconciliation of cash and cash equivalents and restricted cash and cash equivalents 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, 2022 2021 Cash and cash equivalents $ 132 $ 233 Restricted cash and cash equivalents in other current assets 7 7 Total cash and cash equivalents and restricted cash and cash equivalents $ 139 $ 240
NPC
Condensed Cash Flow Statements, Captions [Line Items]
Schedule of Cash and Cash Equivalents	A reconciliation of cash and cash equivalents and restricted cash and cash equivalents 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, 2022 2021 Cash and cash equivalents $ 47 $ 33 Restricted cash and cash equivalents included in other current assets 14 12 Total cash and cash equivalents and restricted cash and cash equivalents $ 61 $ 45
SPPC
Condensed Cash Flow Statements, Captions [Line Items]
Schedule of Cash and Cash Equivalents	A reconciliation of cash and cash equivalents and restricted cash and cash equivalents 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, 2022 2021 Cash and cash equivalents $ 15 $ 10 Restricted cash and cash equivalents included in other current assets 7 6 Total cash and cash equivalents and restricted cash and cash equivalents $ 22 $ 16
EEGH
Condensed Cash Flow Statements, Captions [Line Items]
Schedule of Cash and Cash Equivalents	A reconciliation of cash and cash equivalents and restricted cash and cash equivalents 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, 2022 2021 Cash and cash equivalents $ 54 $ 22 Restricted cash and cash equivalents included in other current assets 18 17 Total cash and cash equivalents and restricted cash and cash equivalents $ 72 $ 39

Property, Plant and Equipment_2

Property, Plant and Equipment, Net (Tables)	3 Months Ended
	Mar. 31, 2022
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	Property, plant and equipment, net consists of the following (in millions): As of Depreciable March 31, December 31, Life 2022 2021 Regulated assets: Utility generation, transmission and distribution systems 5-80 years $ 90,560 $ 90,223 Interstate natural gas pipeline assets 3-80 years 17,526 17,423 108,086 107,646 Accumulated depreciation and amortization (33,248) (32,680) Regulated assets, net 74,838 74,966 Nonregulated assets: Independent power plants 2-50 years 7,932 7,665 Cove Point LNG facility 40 years 3,366 3,364 Other assets 2-30 years 2,688 2,666 13,986 13,695 Accumulated depreciation and amortization (3,146) (3,041) Nonregulated assets, net 10,840 10,654 Net operating assets 85,678 85,620 Construction work-in-progress 4,605 4,196 Property, plant and equipment, net $ 90,283 $ 89,816
PAC
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 2022 2021 Utility Plant: Generation 15 - 59 years $ 13,688 $ 13,679 Transmission 60 - 90 years 7,914 7,894 Distribution 20 - 75 years 8,125 8,044 Intangible plant (1) 5 - 75 years 1,112 1,106 Other 5 - 60 years 1,563 1,539 Utility plant in-service 32,402 32,262 Accumulated depreciation and amortization (10,704) (10,507) Utility plant in-service, net 21,698 21,755 Other non-regulated, net of accumulated depreciation and amortization 14 - 95 years 18 18 Plant, net 21,716 21,773 Construction work-in-progress 1,365 1,141 Property, plant and equipment, net $ 23,081 $ 22,914 (1) Computer software costs included in intangible plant are initially assigned a depreciable life of 5 to 10 years.
MEC
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 2022 2021 Utility plant in-service, net: Generation 20-70 years $ 17,466 $ 17,397 Transmission 52-75 years 2,488 2,474 Electric distribution 20-75 years 4,713 4,661 Natural gas distribution 29-75 years 2,055 2,039 Utility plant in-service 26,722 26,571 Accumulated depreciation and amortization (7,555) (7,376) Utility plant in-service, net 19,167 19,195 Nonregulated property, net: Nonregulated property gross 20-50 years 7 7 Accumulated depreciation and amortization (1) (1) Nonregulated property, net 6 6 19,173 19,201 Construction work-in-progress 1,171 1,100 Property, plant and equipment, net $ 20,344 $ 20,301
NPC
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, 2022 2021 Utility plant: Generation 30 - 55 years $ 3,810 $ 3,793 Transmission 45 - 70 years 1,508 1,503 Distribution 20 - 65 years 3,979 3,920 General and intangible plant 5 - 65 years 831 836 Utility plant 10,128 10,052 Accumulated depreciation and amortization (3,478) (3,406) Utility plant, net 6,650 6,646 Other non-regulated, net of accumulated depreciation and amortization 45 years 1 1 Plant, net 6,651 6,647 Construction work-in-progress 341 244 Property, plant and equipment, net $ 6,992 $ 6,891
SPPC
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, 2022 2021 Utility plant: Electric generation 25 - 60 years $ 1,169 $ 1,163 Electric transmission 50 - 100 years 937 940 Electric distribution 20 - 100 years 1,885 1,846 Electric general and intangible plant 5 - 70 years 206 204 Natural gas distribution 35 - 70 years 445 438 Natural gas general and intangible plant 5 - 70 years 14 14 Common general 5 - 70 years 370 370 Utility plant 5,026 4,975 Accumulated depreciation and amortization (1,878) (1,854) Utility plant, net 3,148 3,121 Construction work-in-progress 238 219 Property, plant and equipment, net $ 3,386 $ 3,340
EEGH
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	Property, plant and equipment, net consists of the following (in millions): As of March 31, December 31, Depreciable Life 2022 2021 Utility Plant: Interstate natural gas pipeline assets 21 - 44 years $ 8,776 $ 8,675 Intangible plant 5 - 10 years 110 110 Utility plant in-service 8,886 8,785 Accumulated depreciation and amortization (2,936) (2,901) Utility plant in-service, net 5,950 5,884 Nonutility Plant: LNG facility 40 years 4,477 4,475 Intangible plant 14 years 25 25 Nonutility plant in-service 4,502 4,500 Accumulated depreciation and amortization (454) (423) Nonutility plant in-service, net 4,048 4,077 Plant, net 9,998 9,961 Construction work-in-progress 185 239 Property, plant and equipment, net $ 10,183 $ 10,200

Investments and Restricted Ca_2

Investments and Restricted Cash, Cash Equivalents and Investments (Tables)	3 Months Ended
	Mar. 31, 2022
Restricted Cash and Cash Equivalents Items [Line Items]
Investments and Restricted Cash	Investments and restricted cash, cash equivalents and investments consists of the following (in millions): As of March 31, December 31, 2022 2021 Investments: BYD Company Limited common stock $ 6,446 $ 7,693 Rabbi trusts 475 492 Other 315 305 Total investments 7,236 8,490 Equity method investments: BHE Renewables tax equity investments 4,812 4,931 Iroquois Gas Transmission System, L.P. 744 735 Electric Transmission Texas, LLC 598 595 JAX LNG, LLC 93 92 Bridger Coal Company 44 45 Other 152 156 Total equity method investments 6,443 6,554 Restricted cash, cash equivalents and investments: Quad Cities Station nuclear decommissioning trust funds 733 768 Other restricted cash and cash equivalents 150 148 Total restricted cash, cash equivalents and investments 883 916 Total investments and restricted cash, cash equivalents and investments $ 14,562 $ 15,960 Reflected as: Current assets $ 168 $ 172 Noncurrent assets 14,394 15,788 Total investments and restricted cash, cash equivalents and investments $ 14,562 $ 15,960
Unrealized Gain (Loss) on Investments	Losses on marketable securities, net recognized during the period consists of the following (in millions): Three-Month Periods Ended March 31, 2022 2021 Unrealized losses recognized on marketable securities still held at the reporting date $ (1,257) $ (1,119) Net gains recognized on marketable securities sold during the period — 1 Losses on marketable securities, net $ (1,257) $ (1,118)
Schedule of Cash and Cash Equivalents	A reconciliation of cash and cash equivalents and restricted cash and cash equivalents 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, 2022 2021 Cash and cash equivalents $ 1,432 $ 1,096 Restricted cash and cash equivalents 129 127 Investments and restricted cash, cash equivalents and investments 21 21 Total cash and cash equivalents and restricted cash and cash equivalents $ 1,582 $ 1,244
EEGH
Restricted Cash and Cash Equivalents Items [Line Items]
Investments and Restricted Cash	Investments and restricted cash and cash equivalents consists of the following (in millions): As of March 31, December 31, 2022 2021 Investments: Investment funds $ 15 $ 13 Equity method investments: Iroquois 408 399 Total investments 423 412 Restricted cash and cash equivalents: Customer deposits 18 17 Total restricted cash and cash equivalents 18 17 Total investments and restricted cash and cash equivalents $ 441 $ 429 Reflected as: Current assets $ 18 $ 17 Noncurrent assets 423 412 Total investments and restricted cash and cash equivalents $ 441 $ 429
Schedule of Cash and Cash Equivalents	A reconciliation of cash and cash equivalents and restricted cash and cash equivalents 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, 2022 2021 Cash and cash equivalents $ 54 $ 22 Restricted cash and cash equivalents included in other current assets 18 17 Total cash and cash equivalents and restricted cash and cash equivalents $ 72 $ 39

Income Taxes (Tables)

Income Taxes (Tables)	3 Months Ended
	Mar. 31, 2022
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
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, 2022 2021 Federal statutory income tax rate 21 % 21 % Income tax credits 72 136 State income tax, net of federal income tax impacts (3) 21 Income tax effect of foreign income 3 6 Effects of ratemaking 8 10 Equity income 3 15 Noncontrolling interest 5 9 Other, net (1) (1) Effective income tax rate 108 % 217 %
PAC
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
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) expense is as follows: Three-Month Periods Ended March 31, 2022 2021 Federal statutory income tax rate 21 % 21 % State income tax, net of federal income tax benefit 3 3 Federal income tax credits (20) (20) Effects of ratemaking (1) (11) (13) Valuation allowance 6 — Other 3 2 Effective income tax rate 2 % (7) % (1) Effects of ratemaking is primarily attributable to activity associated with excess deferred income taxes.
MEC
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
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, 2022 2021 Federal statutory income tax rate 21 % 21 % Income tax credits (534) 2,400 State income tax, net of federal income tax impacts (21) (29) Effects of ratemaking (8) (186) Other, net — (6) Effective income tax rate (542) % 2,200 %
MidAmerican Funding, LLC
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
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, 2022 2021 Federal statutory income tax rate 21 % 21 % Income tax credits (618) 1,400 State income tax, net of federal income tax impacts (24) (8) Effects of ratemaking (9) (108) Other, net — (5) Effective income tax rate (630) % 1,300 %
SPPC
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
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, 2022 2021 Federal statutory income tax rate 21 % 21 % Effects of ratemaking (7) (10) Other 1 2 Effective income tax rate 15 % 13 %
EEGH
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
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, 2022 2021 Federal statutory income tax rate 21 % 21 % State income tax, net of federal income tax benefit 5 3 Equity interest 2 2 Effects of ratemaking (4) (1) Noncontrolling interest (11) (11) Other, net 1 (1) Effective income tax rate 14 % 13 %

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	3 Months Ended
	Mar. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Schedule of Defined Benefit Plans Disclosures	Net periodic benefit cost for the domestic pension and other postretirement benefit plans included the following components (in millions): Three-Month Periods Ended March 31, 2022 2021 Pension: Service cost $ 7 $ 7 Interest cost 19 20 Expected return on plan assets (27) (33) Settlement 2 — Net amortization 4 6 Net periodic benefit cost $ 5 $ — Other postretirement: Service cost $ 2 $ 2 Interest cost 5 5 Expected return on plan assets (7) (5) Net amortization — (1) Net periodic benefit cost $ — $ 1 Net periodic benefit credit for the United Kingdom pension plan included the following components (in millions): Three-Month Periods Ended March 31, 2022 2021 Service cost $ 4 $ 4 Interest cost 10 8 Expected return on plan assets (25) (28) Net amortization 6 14 Net periodic benefit credit $ (5) $ (2)
PAC
Defined Benefit Plan Disclosure [Line Items]
Schedule of Defined Benefit Plans Disclosures	Net periodic benefit cost (credit) for the pension and other postretirement benefit plans included the following components (in millions): Three-Month Periods Ended March 31, 2022 2021 Pension: Service cost $ — $ — Interest cost 7 7 Expected return on plan assets (10) (13) Net amortization 4 5 Net periodic benefit cost (credit) $ 1 $ (1) Other postretirement: Service cost $ — $ — Interest cost 2 2 Expected return on plan assets (2) (2) Net amortization — — Net periodic benefit cost (credit) $ — $ —
MEC
Defined Benefit Plan Disclosure [Line Items]
Schedule of Defined Benefit Plans Disclosures	Net periodic benefit cost for the plans of MidAmerican Energy and the aforementioned affiliates included the following components (in millions): Three-Month Periods Ended March 31, 2022 2021 Pension: Service cost $ 5 $ 5 Interest cost 5 6 Expected return on plan assets (7) (9) Settlement 2 — Net periodic benefit cost $ 5 $ 2 Other postretirement: Service cost $ 2 $ 2 Interest cost 2 2 Expected return on plan assets (4) (2) Net amortization — (1) Net periodic benefit cost $ — $ 1
NPC
Defined Benefit Plan Disclosure [Line Items]
Schedule of Amounts Recognized in Balance Sheet	Amounts receivable from (payable to) NV Energy are included on the Consolidated Balance Sheets and consist of the following (in millions): As of March 31, December 31, 2022 2021 Qualified Pension Plan: Other non-current assets $ 42 $ 42 Non-Qualified Pension Plans: Other current liabilities (1) (1) Other long-term liabilities (8) (8) Other Postretirement Plans: Other non-current assets 8 8
SPPC
Defined Benefit Plan Disclosure [Line Items]
Schedule of Amounts Recognized in Balance Sheet	Amounts receivable from (payable to) NV Energy are included on the Consolidated Balance Sheets and consist of the following (in millions): As of March 31, December 31, 2022 2021 Qualified Pension Plan: Other non-current assets $ 63 $ 62 Non-Qualified Pension Plans: Other current liabilities (1) (1) Other long-term liabilities (7) (7) Other Postretirement Plans: Other long-term liabilities (8) (10)

Risk Management and Hedging A_2

Risk Management and Hedging Activities (Tables)	3 Months Ended
	Mar. 31, 2022
Derivative [Line Items]
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 2022 2021 Electricity purchases Megawatt hours 1 1 Natural gas purchases Decatherms 60 53
PAC
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): Derivative Contracts - Other Other Current Other Current Long-term Assets Assets Liabilities Liabilities Total As of March 31, 2022 Not designated as hedging contracts (1) : Commodity assets $ 165 $ 37 $ 6 $ (1) $ 207 Commodity liabilities (3) — (9) — (12) Total 162 37 (3) (1) 195 Total derivatives 162 37 (3) (1) 195 Cash collateral payable (17) — — — (17) Total derivatives - net basis $ 145 $ 37 $ (3) $ (1) $ 178 As of December 31, 2021 Not designated as hedging contracts (1) : Commodity assets $ 81 $ 21 $ 2 $ — $ 104 Commodity liabilities (5) (1) (38) (7) (51) Total 76 20 (36) (7) 53 Total derivatives 76 20 (36) (7) 53 Cash collateral receivable — — 5 — 5 Total derivatives - net basis $ 76 $ 20 $ (31) $ (7) $ 58 (1) PacifiCorp's commodity derivatives are generally included in rates. As of March 31, 2022 a regulatory liability of $195 million was recorded related to the net derivative asset of $195 million. As of December 31, 2021 a regulatory liability of $53 million was recorded related to the net derivative asset of $53 million.
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, 2022 2021 Beginning balance $ (53) $ 17 Changes in fair value recognized in regulatory assets (168) (17) Net losses reclassified to operating revenue (3) — Net gains reclassified to energy costs 29 — Ending balance $ (195) $ —
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 2022 2021 Electricity purchases, net Megawatt hours 1 2 Natural gas purchases Decatherms 105 106
NPC
Derivative [Line Items]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The following table, which excludes contracts that have been designated as normal under the normal purchases and normal sales exception afforded by GAAP, summarizes the fair value of Nevada Power's derivative contracts, on a gross basis, and reconciles those amounts presented on a net basis on the Consolidated Balance Sheets (in millions): Derivative Other Contracts - Other Current Current Long-term Assets Liabilities Liabilities Total As of March 31, 2022 Not designated as hedging contracts (1) : Commodity liabilities $ — $ (88) $ (80) $ (168) Total derivative - net basis $ — $ (88) $ (80) $ (168) As of December 31, 2021 Not designated as hedging contracts (1) : Commodity assets $ 4 $ — $ — $ 4 Commodity liabilities — (55) (62) (117) Total derivative - net basis $ 4 $ (55) $ (62) $ (113) (1) Nevada Power's commodity derivatives not designated as hedging contracts are included in regulated rates. As of March 31, 2022 a regulatory asset of $168 million was recorded related to the net derivative liability of $168 million. As of December 31, 2021 a regulatory asset of $113 million was recorded related to the net derivative liability of $113 million.
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 2022 2021 Electricity purchases Megawatt hours 3 1 Natural gas purchases Decatherms 138 119
SPPC
Derivative [Line Items]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The following table, which excludes contracts that have been designated as normal under the normal purchases and normal sales exception afforded by GAAP, summarizes the fair value of Sierra Pacific's derivative contracts, on a gross basis, and reconciles those amounts presented on a net basis on the Consolidated Balance Sheets (in millions): Derivative Other Contracts - Other Current Current Long-term Assets Liabilities Liabilities Total As of March 31, 2022 Not designated as hedging contracts (1) : Commodity assets $ 1 $ — $ — $ 1 Commodity liabilities — (28) (25) (53) Total derivative - net basis $ 1 $ (28) $ (25) $ (52) As of December 31, 2021 Not designated as hedging contracts (1) : Commodity assets $ 2 $ — $ — $ 2 Commodity liabilities — (16) (19) (35) Total derivative - net basis $ 2 $ (16) $ (19) $ (33) (1) Sierra Pacific's commodity derivatives not designated as hedging contracts are included in regulated rates. As of March 31, 2022 a net regulatory asset of $52 million was recorded related to the net derivative liability of $52 million. As of December 31, 2021 a net regulatory asset of $33 million was recorded related to the net derivative liability of $33 million.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
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, 2022: Assets: Commodity derivatives $ 13 $ 534 $ 59 $ (64) $ 542 Interest rate derivatives 11 58 25 — 94 Mortgage loans held for sale — 975 — — 975 Money market mutual funds 715 — — — 715 Debt securities: U.S. government obligations 225 — — — 225 International government obligations — 1 — — 1 Corporate obligations — 79 — — 79 Municipal obligations — 3 — — 3 Agency, asset and mortgage-backed obligations — 1 — — 1 Equity securities: U.S. companies 415 — — — 415 International companies 6,455 — — — 6,455 Investment funds 285 — — — 285 $ 8,119 $ 1,651 $ 84 $ (64) $ 9,790 Liabilities: Commodity derivatives $ (1) $ (88) $ (298) $ 69 $ (318) Foreign currency exchange rate derivatives — (3) — — (3) Interest rate derivatives — — (12) — (12) $ (1) $ (91) $ (310) $ 69 $ (333) Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Other (1) Total As of December 31, 2021: Assets: Commodity derivatives $ 5 $ 271 $ 73 $ (47) $ 302 Foreign currency exchange rate derivatives — 3 — — 3 Interest rate derivatives 1 3 20 — 24 Mortgage loans held for sale — 1,263 — — 1,263 Money market mutual funds 554 — — — 554 Debt securities: U.S. government obligations 232 — — — 232 International government obligations — 2 — — 2 Corporate obligations — 90 — — 90 Municipal obligations — 3 — — 3 Agency, asset and mortgage-backed obligations — 2 — — 2 Equity securities: U.S. companies 428 — — — 428 International companies 7,703 — — — 7,703 Investment funds 237 — — — 237 $ 9,160 $ 1,637 $ 93 $ (47) $ 10,843 Liabilities: Commodity derivatives $ (2) $ (113) $ (224) $ 73 $ (266) Foreign currency exchange rate derivatives — (3) — — (3) Interest rate derivatives — (7) (1) — (8) $ (2) $ (123) $ (225) $ 73 $ (277) (1) Represents netting under master netting arrangements and a net cash collateral receivable of $5 million and $26 million as of March 31, 2022 and December 31, 2021, respectively.
Reconciliation of Fair Value Assets and Liabilities	The following table reconciles the beginning and ending balances of the Company's financial 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 2022: Beginning balance $ (151) $ 19 Changes included in earnings (1) (56) (6) Changes in fair value recognized in OCI 5 — Changes in fair value recognized in net regulatory assets (60) — Settlements 23 — Ending balance $ (239) $ 13 2021: Beginning balance $ 116 $ 62 Changes included in earnings (1) (6) (21) Changes in fair value recognized in OCI (1) — Changes in fair value recognized in net regulatory assets 16 — Settlements (1) — Ending balance $ 124 $ 41 (1) Changes included in earnings for interest rate derivatives are reported net of amounts related to the satisfaction of the associated loan commitment.
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, 2022 As of December 31, 2021 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 49,905 $ 52,246 $ 49,762 $ 57,189
PAC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
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, 2022: Assets: Commodity derivatives $ — $ 207 $ — $ (25) $ 182 Money market mutual funds 319 — — — 319 Investment funds 28 — — — 28 $ 347 $ 207 $ — $ (25) $ 529 Liabilities - Commodity derivatives $ — $ (12) $ — $ 8 $ (4) As of December 31, 2021: Assets: Commodity derivatives $ — $ 104 $ — $ (8) $ 96 Money market mutual funds 181 — — — 181 Investment funds 27 — — — 27 $ 208 $ 104 $ — $ (8) $ 304 Liabilities - Commodity derivatives $ — $ (51) $ — $ 13 $ (38) (1) Represents netting under master netting arrangements and a net cash collateral payable of $17 million and a net cash collateral receivable of $5 million as of March 31, 2022 and December 31, 2021, respectively.
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, 2022 As of December 31, 2021 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 8,722 $ 9,423 $ 8,730 $ 10,374
MEC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
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, 2022: Assets: Commodity derivatives $ — $ 66 $ 4 $ — $ 70 Money market mutual funds 132 — — — 132 Debt securities: U.S. government obligations 225 — — — 225 International government obligations — 1 — — 1 Corporate obligations — 79 — — 79 Municipal obligations — 3 — — 3 Agency, asset and mortgage-backed obligations — 1 — — 1 Equity securities: U.S. companies 415 — — — 415 International companies 9 — — — 9 Investment funds 23 — — — 23 $ 804 $ 150 $ 4 $ — $ 958 Liabilities - commodity derivatives $ (1) $ — $ — $ — $ (1) Input Levels for Fair Value Measurements Level 1 Level 2 Level 3 Other (1) Total As of December 31, 2021: Assets: Commodity derivatives $ — $ 32 $ 3 $ (7) $ 28 Money market mutual funds 228 — — — 228 Debt securities: U.S. government obligations 232 — — — 232 International government obligations — 2 — — 2 Corporate obligations — 90 — — 90 Municipal obligations — 3 — — 3 Agency, asset and mortgage-backed obligations — 2 — — 2 Equity securities: U.S. companies 428 — — — 428 International companies 10 — — — 10 Investment funds 18 — — — 18 $ 916 $ 129 $ 3 $ (7) $ 1,041 Liabilities - commodity derivatives $ — $ (6) $ (8) $ 12 $ (2) (1) Represents netting under master netting arrangements and a net cash collateral receivable of $— million and $5 million as of March 31, 2022 and December 31, 2021, respectively.
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, 2022 As of December 31, 2021 Carrying Fair Carrying Fair Long-term debt $ 7,726 $ 8,196 $ 7,721 $ 9,037
MidAmerican Funding, LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, by Balance Sheet Grouping	The following table presents the carrying value and estimated fair value of MidAmerican Funding's long-term debt (in millions): As of March 31, 2022 As of December 31, 2021 Carrying Fair Carrying Fair Long-term debt $ 7,966 $ 8,480 $ 7,961 $ 9,350
NPC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
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, 2022: Assets: Money market mutual funds $ 43 $ — $ — $ 43 Investment funds 3 — — 3 $ 46 $ — $ — $ 46 Liabilities - commodity derivatives $ — $ — $ (168) $ (168) As of December 31, 2021: Assets: Commodity derivatives $ — $ — $ 4 $ 4 Money market mutual funds 34 — — 34 Investment funds 3 — — 3 $ 37 $ — $ 4 $ 41 Liabilities - commodity derivatives $ — $ — $ (117) $ (117)
Fair Value of Derivative Asset (Liability) 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, 2022 2021 Beginning balance $ (113) $ 15 Changes in fair value recognized in regulatory assets (56) 11 Settlements 1 1 Ending balance $ (168) $ 27
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, 2022 As of December 31, 2021 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 2,700 $ 2,985 $ 2,499 $ 3,067
SPPC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring Basis	The following table presents Sierra Pacific'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, 2022: Assets: Commodity derivatives $ — $ — $ 1 $ 1 Money market mutual funds 13 — — 13 Investment funds 1 — — 1 $ 14 $ — $ 1 $ 15 Liabilities - commodity derivatives $ — $ — $ (53) $ (53) As of December 31, 2021: Assets: Commodity derivatives $ — $ — $ 2 $ 2 Money market mutual funds 10 — — 10 Investment funds 1 — — 1 $ 11 $ — $ 2 $ 13 Liabilities - commodity derivatives $ — $ — $ (35) $ (35)
Reconciliation of Fair Value Assets and Liabilities	The following table reconciles the beginning and ending balances of Sierra Pacific'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, 2022 2021 Beginning balance $ (33) $ 7 Changes in fair value recognized in regulatory assets (19) 5 Ending balance $ (52) $ 12
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, 2022 As of December 31, 2021 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 1,164 $ 1,261 $ 1,164 $ 1,316
EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring Basis	The following table presents Eastern Energy Gas' 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 Total As of March 31, 2022: Assets: Money market mutual funds $ 28 $ — $ — $ 28 Equity securities: Investment funds 15 — — 15 $ 43 $ — $ — $ 43 Liabilities: Commodity derivatives $ — $ (2) $ — $ (2) Foreign currency exchange rate derivatives — (3) — (3) $ — $ (5) $ — $ (5) As of December 31, 2021: Assets: Foreign currency exchange rate derivatives $ — $ 3 $ — $ 3 Equity securities: Investment funds 13 — — 13 $ 13 $ 3 $ — $ 16 Liabilities: Foreign currency exchange rate derivatives $ — $ (3) $ — $ (3) $ — $ (3) $ — $ (3)
Fair Value, by Balance Sheet Grouping	The following table presents the carrying value and estimated fair value of Eastern Energy Gas' long-term debt (in millions): As of March 31, 2022 As of December 31, 2021 Carrying Fair Carrying Fair Value Value Value Value Long-term debt $ 3,899 $ 3,911 $ 3,906 $ 4,266

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	3 Months Ended
	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue	The following table summarizes the Company's energy products and services revenue from contracts with customers ("Customer Revenue") by regulated and nonregulated, with further disaggregation of regulated by line of business, including a reconciliation to the Company's reportable segment information included in Note 11 (in millions): For the Three-Month Period Ended March 31, 2022 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables BHE and Other (1) Total Customer Revenue: Regulated: Retail electric $ 1,185 $ 472 $ 599 $ — $ — $ — $ — $ — $ 2,256 Retail gas — 337 51 — — — — — 388 Wholesale 55 161 20 — — — — — 236 Transmission and 32 15 17 269 — 176 — — 509 Interstate pipeline — — — — 745 — — (41) 704 Other 20 — 1 — 1 — — — 22 Total Regulated 1,292 985 688 269 746 176 — (41) 4,115 Nonregulated — 2 — 15 278 7 169 133 604 Total Customer Revenue 1,292 987 688 284 1,024 183 169 92 4,719 Other revenue 5 18 5 31 11 — (2) 36 104 Total $ 1,297 $ 1,005 $ 693 $ 315 $ 1,035 $ 183 $ 167 $ 128 $ 4,823 For the Three-Month Period Ended March 31, 2021 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables BHE and Other (1) Total Customer Revenue: Regulated: Retail electric $ 1,145 $ 452 $ 511 $ — $ — $ — $ — $ — $ 2,108 Retail gas — 460 38 — — — — — 498 Wholesale 36 125 15 — 17 — — — 193 Transmission and 25 15 21 263 — 172 — — 496 Interstate pipeline — — — — 815 — — (41) 774 Other 23 — — — 2 — — — 25 Total Regulated 1,229 1,052 585 263 834 172 — (41) 4,094 Nonregulated — 10 — 10 237 8 166 187 618 Total Customer Revenue 1,229 1,062 585 273 1,071 180 166 146 4,712 Other revenue 13 5 6 27 22 — 24 40 137 Total $ 1,242 $ 1,067 $ 591 $ 300 $ 1,093 $ 180 $ 190 $ 186 $ 4,849 (1) The BHE and Other reportable segment represents amounts related principally to other entities, including MidAmerican Energy Services, LLC, corporate functions and intersegment eliminations. 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, 2022 2021 Customer Revenue: Brokerage $ 1,092 $ 1,022 Franchise 20 18 Total Customer Revenue 1,112 1,040 Mortgage and other revenue 95 192 Total $ 1,207 $ 1,232 Three-Month Periods Ended March 31, 2022 2021 Operating revenue by country: U.S. $ 5,534 $ 5,597 United Kingdom 315 300 Canada 181 177 Other — 7 Total operating revenue by country $ 6,030 $ 6,081 Loss before income tax benefit and equity loss by country: U.S. $ (654) $ (423) United Kingdom 139 132 Canada 46 39 Other (1) 6 Total loss before income tax benefit and equity loss by country $ (470) $ (246)
Summary of 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, 2022, by reportable segment (in millions): Performance obligations expected to be satisfied: Less than 12 months More than 12 months Total BHE Pipeline Group $ 2,878 $ 22,103 $ 24,981
PAC
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue	The following table summarizes PacifiCorp's revenue from contracts with customers ("Customer Revenue") by line of business, with further disaggregation of retail by customer class (in millions): Three-Month Periods Ended March 31, 2022 2021 Customer Revenue: Retail: Residential $ 505 $ 483 Commercial 370 359 Industrial 273 271 Other retail 37 32 Total retail 1,185 1,145 Wholesale 55 36 Transmission 32 25 Other Customer Revenue 20 23 Total Customer Revenue 1,292 1,229 Other revenue 5 13 Total operating revenue $ 1,297 $ 1,242
MEC
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue	The following table summarizes MidAmerican Energy's revenue from contracts with customers ("Customer Revenue") by line of business, with further disaggregation of retail by customer class, including a reconciliation to MidAmerican Energy's reportable segment information included in Note 9 (in millions): For the Three-Month Period Ended March 31, 2022 Electric Natural Gas Other Total Customer Revenue: Retail: Residential $ 168 $ 225 $ — $ 393 Commercial 74 88 — 162 Industrial 198 9 — 207 Natural gas transportation services — 14 — 14 Other retail (1) 32 1 — 33 Total retail 472 337 — 809 Wholesale 104 58 — 162 Multi-value transmission projects 15 — — 15 Other Customer Revenue — — 1 1 Total Customer Revenue 591 395 1 987 Other revenue 17 1 — 18 Total operating revenue $ 608 $ 396 $ 1 $ 1,005 For the Three-Month Period Ended March 31, 2021 Electric Natural Gas Other Total Customer Revenue: Retail: Residential $ 161 $ 308 $ — $ 469 Commercial 71 129 — 200 Industrial 190 12 — 202 Natural gas transportation services — 10 — 10 Other retail (1) 30 1 — 31 Total retail 452 460 — 912 Wholesale 74 51 — 125 Multi-value transmission projects 15 — — 15 Other Customer Revenue — — 10 10 Total Customer Revenue 541 511 10 1,062 Other revenue 4 1 — 5 Total operating revenue $ 545 $ 512 $ 10 $ 1,067 (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.
NPC
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue	The following table summarizes Nevada Power's revenue from contracts with customers ("Customer Revenue") by line of business, with further disaggregation of retail by customer class (in millions): Three-Month Periods Ended March 31, 2022 2021 Customer Revenue: Retail: Residential $ 214 $ 196 Commercial 96 84 Industrial 78 63 Other 1 3 Total fully bundled 389 346 Distribution only service 5 5 Total retail 394 351 Wholesale, transmission and other 16 14 Total Customer Revenue 410 365 Other revenue 5 5 Total revenue $ 415 $ 370
SPPC
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue	The following table summarizes Sierra Pacific's revenue from contracts with customers ("Customer Revenue") by line of business, with further disaggregation of retail by customer class, including a reconciliation to Sierra Pacific's reportable segment information included in Note 11 (in millions): Three-Month Periods Ended March 31, 2022 2021 Electric Natural Gas Total Electric Natural Gas Total Customer Revenue: Retail: Residential $ 85 $ 32 $ 117 $ 71 $ 25 $ 96 Commercial 70 15 85 54 10 64 Industrial 49 4 53 39 3 42 Other 1 — 1 1 — 1 Total fully bundled 205 51 256 165 38 203 Distribution only service 1 — 1 1 — 1 Total retail 206 51 257 166 38 204 Wholesale, transmission and other 21 — 21 15 — 15 Total Customer Revenue 227 51 278 181 38 219 Other revenue — 1 1 — 1 1 Total revenue $ 227 $ 52 $ 279 $ 181 $ 39 $ 220
EEGH
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue	The following table summarizes Eastern Energy Gas' revenue from contracts with customers ("Customer Revenue") by regulated and nonregulated, with further disaggregation of regulated by line of business (in millions): Three-Month Periods Ended March 31, 2022 2021 Customer Revenue: Regulated: Gas transportation and storage $ 285 $ 279 Wholesale — 17 Total regulated 285 296 Nonregulated 203 190 Total Customer Revenue 488 486 Other revenue (6) — Total operating revenue $ 482 $ 486
Summary of Remaining Performance Obligations	The following table summarizes Eastern Energy Gas' 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, 2022 (in millions): Performance obligations expected to be satisfied Less than 12 months More than 12 months Total Eastern Energy Gas $ 1,832 $ 17,061 $ 18,893

Components of Other Comprehen_2

Components of Other Comprehensive Income (Loss), Net (Tables)	3 Months Ended
	Mar. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Schedule of Other Comprehensive Income (Loss), Net	The following table shows the change in accumulated other comprehensive income (loss) by each component of other comprehensive income (loss), net of applicable income tax (in millions): Unrecognized Foreign Unrealized AOCI Amounts on Currency (Losses) Gains Attributable Retirement Translation on Cash Noncontrolling To BHE Benefits Adjustment Flow Hedges Interests Shareholders, Net Balance, December 31, 2020 $ (492) $ (1,062) $ (8) $ 10 $ (1,552) Other comprehensive income 7 91 14 — 112 Balance, March 31, 2021 $ (485) $ (971) $ 6 $ 10 $ (1,440) Balance, December 31, 2021 $ (318) $ (1,086) $ 59 $ 5 $ (1,340) Other comprehensive income (loss) 15 (110) 77 — (18) Balance, March 31, 2022 $ (303) $ (1,196) $ 136 $ 5 $ (1,358)
EEGH
Accumulated Other Comprehensive Income (Loss) [Line Items]
Schedule of Other Comprehensive Income (Loss), Net	The following table shows the change in accumulated other comprehensive loss by each component of other comprehensive income (loss), net of applicable income tax (in millions): Unrecognized Accumulated Amounts On Unrealized Other Retirement Losses on Cash Noncontrolling Comprehensive Benefits Flow Hedges Interests Loss, Net Balance, December 31, 2020 $ (12) $ (51) $ 10 $ (53) Other comprehensive income (loss) 2 10 (4) 8 Balance, March 31, 2021 $ (10) $ (41) $ 6 $ (45) Balance, December 31, 2021 $ (6) $ (42) $ 5 $ (43) Other comprehensive income 1 4 — 5 Balance, March 31, 2022 $ (5) $ (38) $ 5 $ (38)

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Mar. 31, 2022
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, and BHE Transmission, whose business includes operations in Canada. 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, 2022 2021 Operating revenue: PacifiCorp $ 1,297 $ 1,242 MidAmerican Funding 1,005 1,067 NV Energy 693 591 Northern Powergrid 315 300 BHE Pipeline Group 1,035 1,093 BHE Transmission 183 180 BHE Renewables 167 190 HomeServices 1,207 1,232 BHE and Other (1) 128 186 Total operating revenue $ 6,030 $ 6,081 Depreciation and amortization: PacifiCorp $ 280 $ 264 MidAmerican Funding 250 207 NV Energy 140 136 Northern Powergrid 80 71 BHE Pipeline Group 131 118 BHE Transmission 58 58 BHE Renewables 65 60 HomeServices 15 11 BHE and Other (1) 3 2 Total depreciation and amortization $ 1,022 $ 927 Three-Month Periods Ended March 31, 2022 2021 Operating income: PacifiCorp $ 216 $ 234 MidAmerican Funding 100 48 NV Energy 62 70 Northern Powergrid 159 151 BHE Pipeline Group 538 618 BHE Transmission 83 81 BHE Renewables (2) 33 HomeServices 28 112 BHE and Other (1) 52 (14) Total operating income 1,236 1,333 Interest expense (532) (530) Capitalized interest 17 14 Allowance for equity funds 38 26 Interest and dividend income 23 21 Losses on marketable securities, net (1,257) (1,118) Other, net 5 8 Total loss before income tax benefit and equity loss $ (470) $ (246) Interest expense: PacifiCorp $ 106 $ 107 MidAmerican Funding 82 78 NV Energy 51 52 Northern Powergrid 32 33 BHE Pipeline Group 37 38 BHE Transmission 38 38 BHE Renewables 41 40 HomeServices 1 1 BHE and Other (1) 144 143 Total interest expense $ 532 $ 530 Loss on common shares: PacifiCorp $ 130 $ 169 MidAmerican Funding 241 144 NV Energy 29 34 Northern Powergrid 111 104 BHE Pipeline Group 322 383 BHE Transmission 62 59 BHE Renewables 104 16 HomeServices 21 84 BHE and Other (1) (1,165) (1,027) Total loss on common shares $ (145) $ (34) As of March 31, December 31, 2022 2021 Assets: PacifiCorp $ 27,999 $ 27,615 MidAmerican Funding 25,451 25,352 NV Energy 15,430 15,239 Northern Powergrid 9,175 9,326 BHE Pipeline Group 20,486 20,434 BHE Transmission 9,618 9,476 BHE Renewables 12,138 11,829 HomeServices 4,036 4,574 BHE and Other (1) 7,136 8,220 Total assets $ 131,469 $ 132,065 (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.
Disaggregation of Revenue	The following table summarizes the Company's energy products and services revenue from contracts with customers ("Customer Revenue") by regulated and nonregulated, with further disaggregation of regulated by line of business, including a reconciliation to the Company's reportable segment information included in Note 11 (in millions): For the Three-Month Period Ended March 31, 2022 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables BHE and Other (1) Total Customer Revenue: Regulated: Retail electric $ 1,185 $ 472 $ 599 $ — $ — $ — $ — $ — $ 2,256 Retail gas — 337 51 — — — — — 388 Wholesale 55 161 20 — — — — — 236 Transmission and 32 15 17 269 — 176 — — 509 Interstate pipeline — — — — 745 — — (41) 704 Other 20 — 1 — 1 — — — 22 Total Regulated 1,292 985 688 269 746 176 — (41) 4,115 Nonregulated — 2 — 15 278 7 169 133 604 Total Customer Revenue 1,292 987 688 284 1,024 183 169 92 4,719 Other revenue 5 18 5 31 11 — (2) 36 104 Total $ 1,297 $ 1,005 $ 693 $ 315 $ 1,035 $ 183 $ 167 $ 128 $ 4,823 For the Three-Month Period Ended March 31, 2021 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables BHE and Other (1) Total Customer Revenue: Regulated: Retail electric $ 1,145 $ 452 $ 511 $ — $ — $ — $ — $ — $ 2,108 Retail gas — 460 38 — — — — — 498 Wholesale 36 125 15 — 17 — — — 193 Transmission and 25 15 21 263 — 172 — — 496 Interstate pipeline — — — — 815 — — (41) 774 Other 23 — — — 2 — — — 25 Total Regulated 1,229 1,052 585 263 834 172 — (41) 4,094 Nonregulated — 10 — 10 237 8 166 187 618 Total Customer Revenue 1,229 1,062 585 273 1,071 180 166 146 4,712 Other revenue 13 5 6 27 22 — 24 40 137 Total $ 1,242 $ 1,067 $ 591 $ 300 $ 1,093 $ 180 $ 190 $ 186 $ 4,849 (1) The BHE and Other reportable segment represents amounts related principally to other entities, including MidAmerican Energy Services, LLC, corporate functions and intersegment eliminations. 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, 2022 2021 Customer Revenue: Brokerage $ 1,092 $ 1,022 Franchise 20 18 Total Customer Revenue 1,112 1,040 Mortgage and other revenue 95 192 Total $ 1,207 $ 1,232 Three-Month Periods Ended March 31, 2022 2021 Operating revenue by country: U.S. $ 5,534 $ 5,597 United Kingdom 315 300 Canada 181 177 Other — 7 Total operating revenue by country $ 6,030 $ 6,081 Loss before income tax benefit and equity loss by country: U.S. $ (654) $ (423) United Kingdom 139 132 Canada 46 39 Other (1) 6 Total loss before income tax benefit and equity loss by country $ (470) $ (246)
Schedule of Goodwill	The following table shows the change in the carrying amount of goodwill by reportable segment for the three-month period ended March 31, 2022 (in millions): BHE Pipeline Group PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Transmission BHE Renewables HomeServices Total December 31, 2021 $ 1,129 $ 2,102 $ 2,369 $ 992 $ 1,814 $ 1,563 $ 95 $ 1,586 $ 11,650 Acquisitions — — — — — — — 3 3 Foreign currency translation — — — (20) — 16 — — (4) March 31, 2022 $ 1,129 $ 2,102 $ 2,369 $ 972 $ 1,814 $ 1,579 $ 95 $ 1,589 $ 11,649
MEC
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, 2022 2021 Operating revenue: Regulated electric $ 608 $ 545 Regulated natural gas 396 512 Other 1 10 Total operating revenue $ 1,005 $ 1,067 Operating income: Regulated electric $ 51 $ 9 Regulated natural gas 49 39 Total operating income 100 48 Interest expense (78) (74) Allowance for borrowed funds 4 2 Allowance for equity funds 15 6 Other, net (3) 11 Income (loss) before income tax benefit $ 38 $ (7) As of March 31, December 31, Assets: Regulated electric $ 21,613 $ 21,385 Regulated natural gas 1,737 1,871 Other 1 1 Total assets $ 23,351 $ 23,257
Disaggregation of Revenue	The following table summarizes MidAmerican Energy's revenue from contracts with customers ("Customer Revenue") by line of business, with further disaggregation of retail by customer class, including a reconciliation to MidAmerican Energy's reportable segment information included in Note 9 (in millions): For the Three-Month Period Ended March 31, 2022 Electric Natural Gas Other Total Customer Revenue: Retail: Residential $ 168 $ 225 $ — $ 393 Commercial 74 88 — 162 Industrial 198 9 — 207 Natural gas transportation services — 14 — 14 Other retail (1) 32 1 — 33 Total retail 472 337 — 809 Wholesale 104 58 — 162 Multi-value transmission projects 15 — — 15 Other Customer Revenue — — 1 1 Total Customer Revenue 591 395 1 987 Other revenue 17 1 — 18 Total operating revenue $ 608 $ 396 $ 1 $ 1,005 For the Three-Month Period Ended March 31, 2021 Electric Natural Gas Other Total Customer Revenue: Retail: Residential $ 161 $ 308 $ — $ 469 Commercial 71 129 — 200 Industrial 190 12 — 202 Natural gas transportation services — 10 — 10 Other retail (1) 30 1 — 31 Total retail 452 460 — 912 Wholesale 74 51 — 125 Multi-value transmission projects 15 — — 15 Other Customer Revenue — — 10 10 Total Customer Revenue 541 511 10 1,062 Other revenue 4 1 — 5 Total operating revenue $ 545 $ 512 $ 10 $ 1,067 (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
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, 2022 2021 Operating revenue: Regulated electric $ 608 $ 545 Regulated natural gas 396 512 Other 1 10 Total operating revenue $ 1,005 $ 1,067 Operating income: Regulated electric $ 51 $ 9 Regulated natural gas 49 39 Total operating income 100 48 Interest expense (82) (78) Allowance for borrowed funds 4 2 Allowance for equity funds 15 6 Other, net (4) 10 Income (loss) before income tax benefit $ 33 $ (12) As of March 31, December 31, Assets (1) : Regulated electric $ 22,804 $ 22,576 Regulated natural gas 1,816 1,950 Other 6 5 Total assets $ 24,626 $ 24,531 (1) Assets by reportable segment reflect the assignment of goodwill to applicable reporting units.
SPPC
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, 2022 2021 Operating revenue: Regulated electric $ 227 $ 181 Regulated natural gas 52 39 Total operating revenue $ 279 $ 220 Operating income: Regulated electric $ 30 $ 31 Regulated natural gas 8 8 Total operating income 38 39 Interest expense (13) (14) Allowance for borrowed funds 1 — Allowance for equity funds 2 1 Interest and dividend income 3 2 Other, net 2 4 Income before income tax expense $ 33 $ 32 As of March 31, December 31, 2022 2021 Assets: Regulated electric $ 3,869 $ 3,829 Regulated natural gas 375 365 Other (1) 35 29 Total assets $ 4,279 $ 4,223 (1) Consists principally of cash and cash equivalents not included in either the regulated electric or regulated natural gas segments.
Disaggregation of Revenue	The following table summarizes Sierra Pacific's revenue from contracts with customers ("Customer Revenue") by line of business, with further disaggregation of retail by customer class, including a reconciliation to Sierra Pacific's reportable segment information included in Note 11 (in millions): Three-Month Periods Ended March 31, 2022 2021 Electric Natural Gas Total Electric Natural Gas Total Customer Revenue: Retail: Residential $ 85 $ 32 $ 117 $ 71 $ 25 $ 96 Commercial 70 15 85 54 10 64 Industrial 49 4 53 39 3 42 Other 1 — 1 1 — 1 Total fully bundled 205 51 256 165 38 203 Distribution only service 1 — 1 1 — 1 Total retail 206 51 257 166 38 204 Wholesale, transmission and other 21 — 21 15 — 15 Total Customer Revenue 227 51 278 181 38 219 Other revenue — 1 1 — 1 1 Total revenue $ 227 $ 52 $ 279 $ 181 $ 39 $ 220

General - BHE (Details)

General - BHE (Details)	3 Months Ended
	Mar. 31, 2022statecompanyoperatingSegment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of reportable segments | operatingSegment	8
Number of owned and operated utility companies in the United States	4
Number of states owned and operated utility companies serve customers | state	11
Number of owned and operated electricity distribution companies in Great Britain	2
Number of owned and operated interstate natural gas pipeline companies in the United States	5
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

General - EEGH (Details)

General - EEGH (Details) - EEGH	3 Months Ended
	Mar. 31, 2022mi
Iroquois Gas Transmission System, L.P.
Variable Interest Entity [Line Items]
Variable interest entity, ownership percentage	50.00%
Primary Beneficiary | General Partner | Cove Point LNG, LP
Variable Interest Entity [Line Items]
Variable interest entity, ownership percentage	100.00%
Primary Beneficiary | Limited Partner | Cove Point LNG, LP
Variable Interest Entity [Line Items]
Variable interest entity, ownership percentage	25.00%
Primary Beneficiary | Federal Energy Regulatory Commission | Iroquois Gas Transmission System, L.P.
Variable Interest Entity [Line Items]
Miles of interstate natural gas transportation pipeline	416

Cash and Cash Equivalents and_3

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents - PAC (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 1,432	$ 1,096
Restricted cash and cash equivalents	129	127
Investments and restricted cash, cash equivalents and investments	21	21
Total cash and cash equivalents and restricted cash and cash equivalents	1,582	1,244	$ 1,406	$ 1,445
PAC
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	335	179
Restricted cash and cash equivalents	4	4
Investments and restricted cash, cash equivalents and investments	2	3
Total cash and cash equivalents and restricted cash and cash equivalents	$ 341	$ 186	$ 49	$ 19

Cash and Cash Equivalents and_4

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents - MEC (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 1,432	$ 1,096
Restricted cash and cash equivalents	129	127
Total cash and cash equivalents and restricted cash and cash equivalents	1,582	1,244	$ 1,406	$ 1,445
MEC
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	131	232
Restricted cash and cash equivalents	7	7
Total cash and cash equivalents and restricted cash and cash equivalents	$ 138	$ 239	$ 44	$ 45

Cash and Cash Equivalents and_5

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents - LLC (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 1,432	$ 1,096
Restricted cash and cash equivalents	129	127
Total cash and cash equivalents and restricted cash and cash equivalents	1,582	1,244	$ 1,406	$ 1,445
MidAmerican Funding, LLC
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	132	233
Restricted cash and cash equivalents	7	7
Total cash and cash equivalents and restricted cash and cash equivalents	$ 139	$ 240	$ 45	$ 46

Cash and Cash Equivalents and_6

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents - NPC (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 1,432	$ 1,096
Restricted cash and cash equivalents	129	127
Total cash and cash equivalents and restricted cash and cash equivalents	1,582	1,244	$ 1,406	$ 1,445
NPC
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	47	33
Restricted cash and cash equivalents	14	12
Total cash and cash equivalents and restricted cash and cash equivalents	$ 61	$ 45	$ 104	$ 36

Cash and Cash Equivalents and_7

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents - SPPC (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 1,432	$ 1,096
Restricted cash and cash equivalents	129	127
Total cash and cash equivalents and restricted cash and cash equivalents	1,582	1,244	$ 1,406	$ 1,445
SPPC
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	15	10
Restricted cash and cash equivalents	7	6
Total cash and cash equivalents and restricted cash and cash equivalents	$ 22	$ 16	$ 15	$ 26

Property, Plant and Equipment_3

Property, Plant and Equipment, Net - BHE (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 90,283	$ 89,816
Regulated
Property, Plant and Equipment [Line Items]
Property, plant and equipment	108,086	107,646
Accumulated depreciation and amortization	(33,248)	(32,680)
Net operating assets	74,838	74,966
Construction work-in-progress	4,300	3,800
Regulated | Utility generation, transmission and distribution systems
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 90,560	90,223
Regulated | Utility generation, transmission and distribution systems | Minimum
Property, Plant and Equipment [Line Items]
Depreciable life	5 years
Regulated | Utility generation, transmission and distribution systems | Maximum
Property, Plant and Equipment [Line Items]
Depreciable life	80 years
Regulated | Interstate natural gas pipeline assets
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 17,526	17,423
Regulated | Interstate natural gas pipeline assets | Minimum
Property, Plant and Equipment [Line Items]
Depreciable life	3 years
Regulated | Interstate natural gas pipeline assets | Maximum
Property, Plant and Equipment [Line Items]
Depreciable life	80 years
Nonregulated
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 13,986	13,695
Accumulated depreciation and amortization	(3,146)	(3,041)
Net operating assets	10,840	10,654
Nonregulated | Independent power plants
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 7,932	7,665
Nonregulated | Independent power plants | Minimum
Property, Plant and Equipment [Line Items]
Depreciable life	2 years
Nonregulated | Independent power plants | Maximum
Property, Plant and Equipment [Line Items]
Depreciable life	50 years
Nonregulated | LNG facility
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 3,366	3,364
Depreciable life	40 years
Nonregulated | Other assets
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 2,688	2,666
Nonregulated | Other assets | Minimum
Property, Plant and Equipment [Line Items]
Depreciable life	2 years
Nonregulated | Other assets | Maximum
Property, Plant and Equipment [Line Items]
Depreciable life	30 years
Common Facilities
Property, Plant and Equipment [Line Items]
Net operating assets	$ 85,678	85,620
Property, plant and equipment, net	90,283	89,816
Construction in Progress
Property, Plant and Equipment [Line Items]
Construction work-in-progress	$ 4,605	$ 4,196

Property, Plant and Equipment_4

Property, Plant and Equipment, Net - PAC (Details) - PAC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Utility plant in-service	$ 32,402	$ 32,262
Accumulated depreciation and amortization	(10,704)	(10,507)
Utility plant in-service, net	21,698	21,755
Plant, net	21,716	21,773
Construction work-in-progress	1,365	1,141
Property, plant and equipment, net	$ 23,081	22,914
Minimum
Property, Plant and Equipment [Line Items]
Useful life, generation	15 years
Useful life, transmission	60 years
Useful life, distribution	20 years
Useful life, intangible asset	5 years
Useful life, other	5 years
Maximum
Property, Plant and Equipment [Line Items]
Useful life, generation	59 years
Useful life, transmission	90 years
Useful life, distribution	75 years
Useful life, intangible asset	75 years
Useful life, other	60 years
Generation
Property, Plant and Equipment [Line Items]
Utility plant in-service	$ 13,688	13,679
Transmission
Property, Plant and Equipment [Line Items]
Utility plant in-service	7,914	7,894
Distribution
Property, Plant and Equipment [Line Items]
Utility plant in-service	8,125	8,044
Intangible plant
Property, Plant and Equipment [Line Items]
Utility plant in-service	1,112	1,106
Other assets
Property, Plant and Equipment [Line Items]
Utility plant in-service	$ 1,563	1,539
Computer software | Minimum
Property, Plant and Equipment [Line Items]
Useful life, intangible asset	5 years
Computer software | Maximum
Property, Plant and Equipment [Line Items]
Useful life, intangible asset	10 years
Nonregulated
Property, Plant and Equipment [Line Items]
Plant, net	$ 18	$ 18
Nonregulated | Minimum
Property, Plant and Equipment [Line Items]
Useful life, other	14 years
Nonregulated | Maximum
Property, Plant and Equipment [Line Items]
Useful life, other	95 years

Property, Plant and Equipment_5

Property, Plant and Equipment, Net - MEC (Details) - MEC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Plant, net	$ 19,173	$ 19,201
Construction work-in-progress	1,171	1,100
Property, plant and equipment, net	20,344	20,301
Regulated
Property, Plant and Equipment [Line Items]
Utility plant in-service	26,722	26,571
Accumulated depreciation and amortization	(7,555)	(7,376)
Plant, net	19,167	19,195
Nonregulated
Property, Plant and Equipment [Line Items]
Accumulated depreciation and amortization	(1)	(1)
Plant, net	6	6
Nonregulated property gross	$ 7	7
Nonregulated | Minimum
Property, Plant and Equipment [Line Items]
Useful life, other	20 years
Nonregulated | Maximum
Property, Plant and Equipment [Line Items]
Useful life, other	50 years
Electric Operations | Regulated
Property, Plant and Equipment [Line Items]
Generation	$ 17,466	17,397
Transmission	2,488	2,474
Distribution	$ 4,713	4,661
Electric Operations | Regulated | Minimum
Property, Plant and Equipment [Line Items]
Useful life, generation	20 years
Useful life, transmission	52 years
Useful life, distribution	20 years
Electric Operations | Regulated | Maximum
Property, Plant and Equipment [Line Items]
Useful life, generation	70 years
Useful life, transmission	75 years
Useful life, distribution	75 years
Natural Gas Processing Plant | Regulated
Property, Plant and Equipment [Line Items]
Distribution	$ 2,055	$ 2,039
Natural Gas Processing Plant | Regulated | Minimum
Property, Plant and Equipment [Line Items]
Useful life, distribution	29 years
Natural Gas Processing Plant | Regulated | Maximum
Property, Plant and Equipment [Line Items]
Useful life, distribution	75 years

Property, Plant and Equipment_6

Property, Plant and Equipment, Net - NPC (Details) - NPC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Plant, net	$ 6,651	$ 6,647
Construction work-in-progress	341	244
Property, plant and equipment, net	6,992	6,891
Regulated
Property, Plant and Equipment [Line Items]
Generation	3,810	3,793
Distribution	1,508	1,503
Transmission	3,979	3,920
General and intangible	831	836
Utility plant in-service	10,128	10,052
Accumulated depreciation and amortization	(3,478)	(3,406)
Plant, net	$ 6,650	6,646
Regulated | Minimum
Property, Plant and Equipment [Line Items]
Useful life, generation	30 years
Useful life, distribution	45 years
Useful life, transmission	20 years
Useful life, other	5 years
Regulated | Maximum
Property, Plant and Equipment [Line Items]
Useful life, generation	55 years
Useful life, distribution	70 years
Useful life, transmission	65 years
Useful life, other	65 years
Nonregulated
Property, Plant and Equipment [Line Items]
Plant, net	$ 1	$ 1
Useful life, other	45 years

Property, Plant and Equipment_7

Property, Plant and Equipment, Net - SPPC (Details) - SPPC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 3,386	$ 3,340
Common Facilities
Property, Plant and Equipment [Line Items]
Construction work-in-progress	238	219
Property, plant and equipment, net	3,386	3,340
Regulated | Generation
Property, Plant and Equipment [Line Items]
Generation	1,169	1,163
Transmission	937	940
Distribution	1,885	1,846
General and intangible	$ 206	204
Regulated | Generation | Minimum
Property, Plant and Equipment [Line Items]
Useful life, generation	25 years
Useful life, transmission	50 years
Useful life, distribution	20 years
Useful life, other	5 years
Regulated | Generation | Maximum
Property, Plant and Equipment [Line Items]
Useful life, generation	60 years
Useful life, transmission	100 years
Useful life, distribution	100 years
Useful life, other	70 years
Regulated | Natural Gas Processing Plant
Property, Plant and Equipment [Line Items]
Distribution	$ 445	438
General and intangible	$ 14	14
Regulated | Natural Gas Processing Plant | Minimum
Property, Plant and Equipment [Line Items]
Useful life, distribution	35 years
Useful life, other	5 years
Regulated | Natural Gas Processing Plant | Maximum
Property, Plant and Equipment [Line Items]
Useful life, distribution	70 years
Useful life, other	70 years
Regulated | Common Facilities
Property, Plant and Equipment [Line Items]
Common general	$ 370	370
Utility plant in-service	5,026	4,975
Accumulated depreciation and amortization	(1,878)	(1,854)
Plant, net	$ 3,148	$ 3,121
Regulated | Common Facilities | Minimum
Property, Plant and Equipment [Line Items]
Useful life, common general	5 years
Regulated | Common Facilities | Maximum
Property, Plant and Equipment [Line Items]
Useful life, common general	70 years

Property, Plant and Equipment_8

Property, Plant and Equipment, Net - EEGH (Details) - EEGH - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Plant, net	$ 9,998	$ 9,961
Construction work-in-progress	185	239
Property, plant and equipment, net	10,183	10,200
Regulated
Property, Plant and Equipment [Line Items]
Plant in service, net	8,886	8,785
Accumulated depreciation and amortization	(2,936)	(2,901)
Plant, net	5,950	5,884
Construction work-in-progress	151	209
Nonregulated
Property, Plant and Equipment [Line Items]
Plant in service, net	4,502	4,500
Accumulated depreciation and amortization	(454)	(423)
Plant, net	4,048	4,077
Interstate natural gas pipeline assets | Regulated
Property, Plant and Equipment [Line Items]
Plant in service, net	$ 8,776	8,675
Interstate natural gas pipeline assets | Regulated | Minimum
Property, Plant and Equipment [Line Items]
Depreciable life	21 years
Interstate natural gas pipeline assets | Regulated | Maximum
Property, Plant and Equipment [Line Items]
Depreciable life	44 years
Intangible plant | Regulated
Property, Plant and Equipment [Line Items]
Plant in service, net	$ 110	110
Intangible plant | Regulated | Minimum
Property, Plant and Equipment [Line Items]
Depreciable life	5 years
Intangible plant | Regulated | Maximum
Property, Plant and Equipment [Line Items]
Depreciable life	10 years
Intangible plant | Nonregulated
Property, Plant and Equipment [Line Items]
Depreciable life	14 years
Plant in service, net	$ 25	25
LNG facility | Nonregulated
Property, Plant and Equipment [Line Items]
Depreciable life	40 years
Plant in service, net	$ 4,477	$ 4,475

Investments and Restricted Ca_3

Investments and Restricted Cash, Cash Equivalents and Investments - BHE (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Investments:
Total investments	$ 7,236		$ 8,490
Equity method investments:
Equity method investments	6,443		6,554
Restricted cash and cash equivalents:
Restricted cash and investments	883		916
Total investments and restricted cash, cash equivalents and investments	14,562		15,960
Reflected as:
Current assets	168		172
Noncurrent assets	14,394		15,788
Unrealized losses recognized on marketable securities still held at the reporting date	(1,257)	$ (1,119)
Net gains recognized on marketable securities sold during the period	0	1
Losses on marketable securities, net	(1,257)	$ (1,118)
Quad Cities Station nuclear decommissioning trust funds
Restricted cash and cash equivalents:
Decommissioning fund investments, fair value	733		768
Other restricted cash and cash equivalents
Restricted cash and cash equivalents:
Restricted cash and investments	150		148
BHE Renewables tax equity investments
Equity method investments:
Equity method investments	4,812		4,931
Iroquois Gas Transmission System, L.P.
Equity method investments:
Equity method investments	744		735
Electric Transmission Texas, LLC
Equity method investments:
Equity method investments	598		595
JAX LNG, LLC
Equity method investments:
Equity method investments	93		92
Bridger Coal Company
Equity method investments:
Equity method investments	44		45
Other
Equity method investments:
Equity method investments	152		156
BYD Company Limited common stock
Investments:
BYD Company Limited common stock	6,446		7,693
Rabbi trusts
Investments:
Rabbi trusts	475		492
Other
Investments:
Other	$ 315		$ 305

Investments and Restricted Ca_4

Investments and Restricted Cash, Cash Equivalents and Investments - EEGH - Components (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Investments:
Equity method investments	$ 6,443	$ 6,554
Total investments	7,236	8,490
Restricted cash and cash equivalents:
Restricted cash and cash equivalents	883	916
Current assets	168	172
Noncurrent assets	14,394	15,788
Total investments and restricted cash, cash equivalents and investments	14,562	15,960
EEGH
Investments:
Total investments	423	412
Restricted cash and cash equivalents:
Restricted cash and cash equivalents	18	17
Current assets	18	17
Noncurrent assets	423	412
Total investments and restricted cash, cash equivalents and investments	441	429
EEGH | Customer deposits
Restricted cash and cash equivalents:
Restricted cash and cash equivalents	18	17
Iroquois Gas Transmission System, L.P.
Investments:
Equity method investments	744	735
Iroquois Gas Transmission System, L.P. | EEGH
Investments:
Equity method investments	408	399
Investment funds | EEGH
Investments:
Investment funds	$ 15	$ 13

Investments and Restricted Ca_5

Investments and Restricted Cash, Cash Equivalents and Investments - EEGH - Narrative (Details) - EEGH - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Investments And Restricted Cash And Investments [Line Items]
Investment exceeded share of equity in net assets	$ 130		$ 130
Distributions received from investments	$ 11	$ 10
Iroquois Gas Transmission System, L.P.
Investments And Restricted Cash And Investments [Line Items]
Equity method investment, ownership percentage	50.00%

Investments and Restricted Ca_6

Investments and Restricted Cash, Cash Equivalents and Investments - BHE and EEGH - Reconciliation (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 1,432	$ 1,096
Restricted cash and cash equivalents	129	127
Total cash and cash equivalents and restricted cash and cash equivalents	1,582	1,244	$ 1,406	$ 1,445
EEGH
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	54	22
Restricted cash and cash equivalents	18	17
Total cash and cash equivalents and restricted cash and cash equivalents	$ 72	$ 39	$ 115	$ 48

Regulatory Matters - EEGH (Deta

Regulatory Matters - EEGH (Details) - General Rate Case - Federal Energy Regulatory Commission - EGTS $ in Billions	1 Months Ended
	Sep. 30, 2021USD ($)
Schedule Of Regulatory Assets and Liabilities [Line Items]
Proposed annual cost-of-service	$ 1.1
Gas Storage
Schedule Of Regulatory Assets and Liabilities [Line Items]
Proposed annual cost-of-service, rate increase	85.00%
Gas Transportation
Schedule Of Regulatory Assets and Liabilities [Line Items]
Proposed annual cost-of-service, rate increase	60.00%

Recent Financing Transactions -

Recent Financing Transactions - BHE (Details) £ in Millions, $ in Millions	1 Months Ended	3 Months Ended
	Apr. 29, 2022USD ($)	Mar. 31, 2022USD ($)	Mar. 31, 2021USD ($)	Apr. 29, 2022GBP (£)
Debt Instrument [Line Items]
Repayments of subsidiary debt		$ 193	$ 26
NPC
Debt Instrument [Line Items]
Proceeds from long-term debt		$ 200	$ 0
Subsequent Event | Redeemable Preferred Stock | Natural Gas Transmission and Storage
Debt Instrument [Line Items]
Preferred Stock, dividend rate	4.00%
Subsidiary Debt | Water facilities refunding revenue bonds, series 2016C, due 2036 | Subsequent Event | SPPC
Debt Instrument [Line Items]
Repayments of subsidiary debt	$ 30
Subsidiary Debt | Water facilities refunding revenue bonds, series 2016D, due 2036 | Subsequent Event | SPPC
Debt Instrument [Line Items]
Repayments of subsidiary debt	25
Subsidiary Debt | Water facilities refunding revenue bonds, series 2016E, due 2036 | Subsequent Event | SPPC
Debt Instrument [Line Items]
Repayments of subsidiary debt	25
Subsidiary Debt | Water facilities refunding revenue bonds, series 2016F, due 2036 | Subsequent Event | SPPC
Debt Instrument [Line Items]
Repayments of subsidiary debt	75
Subsidiary Debt | Water facilities refunding revenue bonds, series 2016G, due 2036 | Subsequent Event | SPPC
Debt Instrument [Line Items]
Repayments of subsidiary debt	20
Subsidiary Debt | Pollution Control Refunding Revenue Bonds, 1.850%, Series 2016B, due 2029 | Subsequent Event | SPPC
Debt Instrument [Line Items]
Repayments of subsidiary debt	$ 30
Subsidiary Debt | Bonds, 3.25%, Due 2052 | Subsequent Event | Northern Powergrid
Debt Instrument [Line Items]
Face amount | £				£ 350
Stated interest rate	3.25%			3.25%
Senior Notes | Senior Notes, 4.6%, Due 2053 | Subsequent Event | BHE
Debt Instrument [Line Items]
Face amount	$ 1,000
Stated interest rate	4.60%			4.60%

Recent Financing Transactions_2

Recent Financing Transactions - NPC (Details) - NPC - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Jan. 31, 2022	Mar. 31, 2022	Mar. 31, 2021
Debt Instrument [Line Items]
Proceeds from long-term debt		$ 200	$ 0
NPC Secured Delayed Draw Term Loan Facility, Due 2024 | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 300
Proceeds from long-term debt	$ 200
Interest rate during period	0.55%

Recent Financing Transactions_3

Recent Financing Transactions - SPPC (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Apr. 29, 2022	Mar. 31, 2022	Mar. 31, 2021
Debt Instrument [Line Items]
Repayments of subsidiary debt		$ 193	$ 26
NV Energy loan, payable upon demand | SPPC | Unsecured Debt | Subsequent Event
Debt Instrument [Line Items]
Face amount	$ 200
NV Energy loan, payable upon demand | SPPC | Unsecured Debt | Subsequent Event | London Interbank Offered Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.75%
Water facilities refunding revenue bonds, series 2016C, due 2036 | SPPC | Subsidiary Debt | Subsequent Event
Debt Instrument [Line Items]
Repayments of subsidiary debt	$ 30
Water facilities refunding revenue bonds, series 2016D, due 2036 | SPPC | Subsidiary Debt | Subsequent Event
Debt Instrument [Line Items]
Repayments of subsidiary debt	25
Water facilities refunding revenue bonds, series 2016E, due 2036 | SPPC | Subsidiary Debt | Subsequent Event
Debt Instrument [Line Items]
Repayments of subsidiary debt	25
Water facilities refunding revenue bonds, series 2016F, due 2036 | SPPC | Subsidiary Debt | Subsequent Event
Debt Instrument [Line Items]
Repayments of subsidiary debt	75
Water facilities refunding revenue bonds, series 2016G, due 2036 | SPPC | Subsidiary Debt | Subsequent Event
Debt Instrument [Line Items]
Repayments of subsidiary debt	20
Pollution Control Refunding Revenue Bonds, 1.850%, Series 2016B, due 2029 | SPPC | Subsidiary Debt | Subsequent Event
Debt Instrument [Line Items]
Repayments of subsidiary debt	$ 30

Income Taxes - BHE (Details)

Income Taxes - BHE (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Effective income tax rate	108.00%	217.00%
Income tax benefit	$ 507,000,000	$ 535,000,000
Total loss before income tax benefit and equity loss	470,000,000	246,000,000
Federal statutory income tax rate, benefit	$ 99,000,000	$ 52,000,000
Federal statutory income tax rate	21.00%	21.00%
Effective income tax rate reconciliation, tax credit, amount	$ 339,000,000	$ 334,000,000
Effective income tax rate reconciliation, tax credit, percent	72.00%	136.00%
State income tax, net of federal income tax impacts, benefit		$ 51,000,000
State income tax, net of federal income tax impacts	(3.00%)	21.00%
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory income tax rate	21.00%	21.00%
Income tax credits	72.00%	136.00%
State income tax, net of federal income tax impacts	(3.00%)	21.00%
Income tax effect of foreign income	3.00%	6.00%
Effects of ratemaking	8.00%	10.00%
Equity income	3.00%	15.00%
Noncontrolling interest	5.00%	9.00%
Other	(1.00%)	(1.00%)
Effective income tax rate	108.00%	217.00%
Years eligible for federal renewable energy production tax credit	10 years
Production tax credits	$ 338,000,000	$ 315,000,000
BYD Company Limited common stock
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Equity securities, pre-tax unrealized loss	1,247,000,000	1,124,000,000
Parent Company
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Related party transaction, cash paid for (received) income taxes	$ 0	$ 0

Income Taxes - PAC (Details)

Income Taxes - PAC (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
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 impacts	(3.00%)	21.00%
Income tax credits	72.00%	136.00%
Effects of ratemaking	8.00%	10.00%
Other	(1.00%)	(1.00%)
Effective income tax rate	108.00%	217.00%
Years eligible for federal renewable energy production tax credit	10 years
Production tax credits	$ 338	$ 315
PAC
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 impacts	3.00%	3.00%
Income tax credits	(20.00%)	(20.00%)
Effects of ratemaking	(11.00%)	(13.00%)
Valuation allowance	6.00%	0.00%
Other	3.00%	2.00%
Effective income tax rate	2.00%	(7.00%)
Years eligible for federal renewable energy production tax credit	10 years
Production tax credits	$ 26	$ 31

Income Taxes - MEC (Details)

Income Taxes - MEC (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Effective income tax rate	108.00%	217.00%
Income tax benefit	$ 507,000,000	$ 535,000,000
Total loss before income tax benefit and equity loss	470,000,000	246,000,000
Federal statutory income tax rate, benefit	$ 99,000,000	$ 52,000,000
Federal statutory income tax rate	21.00%	21.00%
Effective income tax rate reconciliation, tax credit, amount	$ 339,000,000	$ 334,000,000
Effective income tax rate reconciliation, tax credit, percent	72.00%	136.00%
Effects of ratemaking	(8.00%)	(10.00%)
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory income tax rate	21.00%	21.00%
Income tax credits	72.00%	136.00%
State income tax, net of federal income tax impacts	(3.00%)	21.00%
Effects of ratemaking	8.00%	10.00%
Other	(1.00%)	(1.00%)
Effective income tax rate	108.00%	217.00%
Years eligible for federal renewable energy production tax credit	10 years
Production tax credits	$ 338,000,000	$ 315,000,000
MEC
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Effective income tax rate	(542.00%)	2200.00%
Income tax benefit	$ 206,000,000	$ 154,000,000
Total loss before income tax benefit and equity loss	$ (38,000,000)	7,000,000
Federal statutory income tax rate, benefit		$ 2,000,000
Federal statutory income tax rate	21.00%	21.00%
Effective income tax rate reconciliation, tax credit, amount		$ 168,000,000
Effective income tax rate reconciliation, tax credit, percent	(534.00%)	2400.00%
Effects of ratemaking, expense		$ 13,000,000
Effects of ratemaking	8.00%	186.00%
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory income tax rate	21.00%	21.00%
Income tax credits	(534.00%)	2400.00%
State income tax, net of federal income tax impacts	(21.00%)	(29.00%)
Effects of ratemaking	(8.00%)	(186.00%)
Other	0.00%	(6.00%)
Effective income tax rate	(542.00%)	2200.00%
Years eligible for federal renewable energy production tax credit	10 years
Production tax credits	$ 203,000,000	$ 151,000,000
MEC | BHE
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Related party transaction, cash paid for (received) income taxes	$ 0	$ 0

Income Taxes - LLC (Details)

Income Taxes - LLC (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Effective income tax rate	108.00%	217.00%
Income tax benefit	$ 507,000,000	$ 535,000,000
Total loss before income tax benefit and equity loss	470,000,000	246,000,000
Federal statutory income tax rate, benefit	$ 99,000,000	$ 52,000,000
Federal statutory income tax rate	21.00%	21.00%
Effective income tax rate reconciliation, tax credit, amount	$ 339,000,000	$ 334,000,000
Effective income tax rate reconciliation, tax credit, percent	72.00%	136.00%
Effects of ratemaking	(8.00%)	(10.00%)
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory income tax rate	21.00%	21.00%
Income tax credits	72.00%	136.00%
State income tax, net of federal income tax impacts	(3.00%)	21.00%
Effects of ratemaking	8.00%	10.00%
Other	(1.00%)	(1.00%)
Effective income tax rate	108.00%	217.00%
Production Tax Credit Carryforwards [Abstract]
Years eligible for federal renewable energy production tax credit	10 years
Production tax credits	$ 338,000,000	$ 315,000,000
MidAmerican Funding, LLC
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Effective income tax rate	(630.00%)	1300.00%
Income tax benefit	$ 208,000,000	$ 156,000,000
Total loss before income tax benefit and equity loss	$ (33,000,000)	12,000,000
Federal statutory income tax rate, benefit		$ 3,000,000
Federal statutory income tax rate	21.00%	21.00%
Effective income tax rate reconciliation, tax credit, amount		$ 168,000,000
Effective income tax rate reconciliation, tax credit, percent	(618.00%)	1400.00%
Effects of ratemaking, expense		$ 13,000,000
Effects of ratemaking	9.00%	108.00%
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory income tax rate	21.00%	21.00%
Income tax credits	(618.00%)	1400.00%
State income tax, net of federal income tax impacts	(24.00%)	(8.00%)
Effects of ratemaking	(9.00%)	(108.00%)
Other	0.00%	(5.00%)
Effective income tax rate	(630.00%)	1300.00%
Production Tax Credit Carryforwards [Abstract]
Years eligible for federal renewable energy production tax credit	10 years
Production tax credits	$ 203,000,000	$ 151,000,000
MidAmerican Funding, LLC | BHE
Related Party Income Tax Receivable (Payable) [Abstract]
Related party transaction, cash paid for (received) income taxes	$ 0	$ 0

Income Taxes - SPPC (Details)

Income Taxes - SPPC (Details)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Federal statutory income tax rate	21.00%	21.00%
Effects of ratemaking	8.00%	10.00%
Other	(1.00%)	(1.00%)
Effective income tax rate	108.00%	217.00%
SPPC
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Federal statutory income tax rate	21.00%	21.00%
Effects of ratemaking	(7.00%)	(10.00%)
Other	1.00%	2.00%
Effective income tax rate	15.00%	13.00%

Income Taxes - EEGH (Details)

Income Taxes - EEGH (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Federal statutory income tax rate	21.00%	21.00%
State income tax, net of federal income tax impacts	(3.00%)	21.00%
Equity interest	3.00%	15.00%
Noncontrolling interest	5.00%	9.00%
Other	(1.00%)	(1.00%)
Effective income tax rate	108.00%	217.00%
EEGH
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Federal statutory income tax rate	21.00%	21.00%
State income tax, net of federal income tax impacts	5.00%	3.00%
Equity interest	2.00%	2.00%
Effects of ratemaking	(4.00%)	(1.00%)
Noncontrolling interest	(11.00%)	(11.00%)
Other	1.00%	(1.00%)
Effective income tax rate	14.00%	13.00%
EEGH | Cove Point LNG, LP
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Ownership interest	75.00%
EEGH | Affiliated Entity | BHE
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Related party transaction, cash paid for (received) income taxes	$ 0	$ 0

Employee Benefit Plans - BHE (D

Employee Benefit Plans - BHE (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Other Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 2	$ 2
Interest cost	5	5
Expected return on plan assets	(7)	(5)
Net amortization	0	(1)
Net periodic benefit cost (credit)	0	1
U.S. | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	7	7
Interest cost	19	20
Expected return on plan assets	(27)	(33)
Settlement	2	0
Net amortization	4	6
Net periodic benefit cost (credit)	5	0
United Kingdom | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	4	4
Interest cost	10	8
Expected return on plan assets	(25)	(28)
Net amortization	6	14
Net periodic benefit cost (credit)	$ (5)	$ (2)

Employee Benefit Plans - BHE -

Employee Benefit Plans - BHE - Employer Contributions (Details) - 3 months ended Mar. 31, 2022 £ in Millions, $ in Millions	USD ($)	GBP (£)	GBP (£)
Other Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	$ 4
Employer contributions	3
U.S. | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	13
Employer contributions	4
United Kingdom | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year | £			£ 12
Employer contributions	$ 4	£ 3

Employee Benefit Plans - PAC (D

Employee Benefit Plans - PAC (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Other Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 2	$ 2
Interest cost	5	5
Expected return on plan assets	(7)	(5)
Net amortization	0	(1)
Net periodic benefit cost (credit)	0	1
PAC | Other Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0
Interest cost	2	2
Expected return on plan assets	(2)	(2)
Net amortization	0	0
Net periodic benefit cost (credit)	0	0
U.S. | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	7	7
Interest cost	19	20
Expected return on plan assets	(27)	(33)
Net amortization	4	6
Net periodic benefit cost (credit)	5	0
U.S. | PAC | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0
Interest cost	7	7
Expected return on plan assets	(10)	(13)
Net amortization	4	5
Net periodic benefit cost (credit)	$ 1	$ (1)

Employee Benefit Plans - PAC -

Employee Benefit Plans - PAC - Employer Contributions (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022USD ($)
Other Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	$ 4
Employer contributions	3
PAC | Other Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	0
U.S. | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	13
Employer contributions	4
U.S. | PAC | Pension Plan
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, 2022	Mar. 31, 2021
Pension Plan | U.S.
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 7	$ 7
Interest cost	19	20
Expected return on plan assets	(27)	(33)
Settlement	2	0
Net amortization	4	6
Net periodic benefit cost (credit)	5	0
Pension Plan | U.S. | MEC
Defined Benefit Plan Disclosure [Line Items]
Service cost	5	5
Interest cost	5	6
Expected return on plan assets	(7)	(9)
Settlement	2	0
Net periodic benefit cost (credit)	5	2
Other Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	2	2
Interest cost	5	5
Expected return on plan assets	(7)	(5)
Net amortization	0	(1)
Net periodic benefit cost (credit)	0	1
Other Postretirement Plans | MEC
Defined Benefit Plan Disclosure [Line Items]
Service cost	2	2
Interest cost	2	2
Expected return on plan assets	(4)	(2)
Net amortization	0	(1)
Net periodic benefit cost (credit)	$ 0	$ 1

Employee Benefit Plans - MEC -

Employee Benefit Plans - MEC - Employer Contributions (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022USD ($)
Other Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	$ 4
Employer contributions	3
MEC | Other Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	3
Employer contributions	1
U.S. | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	13
Employer contributions	4
U.S. | MEC | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in current fiscal year	7
Employer contributions	$ 2

Employee Benefit Plans - NPC (D

Employee Benefit Plans - NPC (Details) - NPC - U.S. - NV Energy - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Other Assets | Other Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Other non-current assets	$ 8	$ 8
Other Current Liabilities | Other Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Other current liabilities	(1)	(1)
Other Noncurrent Liabilities | Other Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Other long-term liabilities	(8)	(8)
Qualified Plan | Other Assets | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Other non-current assets	$ 42	$ 42

Employee Benefit Plans - SPPC (

Employee Benefit Plans - SPPC (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Other Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 3
U.S. | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	4
SPPC | U.S. | Other Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	2
SPPC | U.S. | NV Energy | Other Current Liabilities | Other Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Other current liabilities	(1)	$ (1)
SPPC | U.S. | NV Energy | Other Noncurrent Liabilities | Other Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Other long-term liabilities	(7)	(7)
SPPC | U.S. | NV Energy | Other Noncurrent Liabilities | Other Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Other long-term liabilities	(8)	(10)
SPPC | Qualified Plan | U.S. | NV Energy | Other Assets | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Other non-current assets	$ 63	$ 62

Employee Benefit Plans - EEGH (

Employee Benefit Plans - EEGH (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
EEGH
Defined Benefit Plan Disclosure [Line Items]
Pension plan liability, noncurrent	$ 95	$ 95
Pension Plan | EEGH | MidAmerican Energy Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	3
Other Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	3
Other Postretirement Plans | EEGH | MidAmerican Energy Retiree Health and Welfare Plan
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 1

Risk Management and Hedging A_3

Risk Management and Hedging Activities - PAC - Balance Sheet Location (Details) - PAC - Commodity derivatives - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Total	$ 195	$ 53
Cash collateral payable	(17)	5
Total derivatives - net basis	178	58
Derivative Contracts - Current Assets
Derivatives, Fair Value [Line Items]
Total	162	76
Cash collateral payable	(17)	0
Total derivatives - net basis	145	76
Other Assets
Derivatives, Fair Value [Line Items]
Total	37	20
Cash collateral payable	0	0
Total derivatives - net basis	37	20
Other Current Liabilities
Derivatives, Fair Value [Line Items]
Total	(3)	(36)
Cash collateral payable	0	5
Total derivatives - net basis	(3)	(31)
Other Noncurrent Liabilities
Derivatives, Fair Value [Line Items]
Total	(1)	(7)
Cash collateral payable	0	0
Total derivatives - net basis	(1)	(7)
Not Designated as Hedging
Derivatives, Fair Value [Line Items]
Derivative asset, gross	207	104
Derivative liability	(12)	(51)
Total	195	53
Net regulatory asset (liability) on derivative contracts	(195)	(53)	$ 0	$ 17
Not Designated as Hedging | Derivative Contracts - Current Assets
Derivatives, Fair Value [Line Items]
Derivative asset, gross	165	81
Derivative liability	(3)	(5)
Total	162	76
Not Designated as Hedging | Other Assets
Derivatives, Fair Value [Line Items]
Derivative asset, gross	37	21
Derivative liability	0	(1)
Total	37	20
Not Designated as Hedging | Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative asset, gross	6	2
Derivative liability	(9)	(38)
Total	(3)	(36)
Not Designated as Hedging | Other Noncurrent Liabilities
Derivatives, Fair Value [Line Items]
Derivative asset, gross	(1)	0
Derivative liability	0	(7)
Total	$ (1)	$ (7)

Risk Management and Hedging A_4

Risk Management and Hedging Activities - PAC - Not Designated as Hedging Contracts (Details) - PAC - Not Designated as Hedging - Commodity derivatives - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Regulatory Assets (Liabilities), Net, Unrealized Loss (Gain), Net, on Derivative Instruments [Roll Forward]
Beginning balance	$ (53)	$ 17
Changes in fair value recognized in regulatory assets	(168)	(17)
Net losses reclassified to operating revenue	(3)	0
Net gains reclassified to energy costs	29	0
Ending balance	$ (195)	$ 0

Risk Management and Hedging A_5

Risk Management and Hedging Activities - PAC - Derivative Contract Volumes (Details) - PAC - Commodity derivatives MWh in Millions, Dth in Millions	Mar. 31, 2022DthMWh	Dec. 31, 2021MWhDth
Electricity purchases, net
Notional Amounts of Outstanding Derivative Positions [Line Items]
Nonmonetary notional amount | MWh	1	2
Natural gas purchases
Notional Amounts of Outstanding Derivative Positions [Line Items]
Nonmonetary notional amount | Dth	105	106

Risk Management and Hedging A_6

Risk Management and Hedging Activities - PAC - Collateral and Contingent Features (Details) - PAC - Commodity derivatives - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Derivative [Line Items]
Derivative, net liability position, aggregate fair value	$ 10	$ 37
Collateral already posted, aggregate fair value	0	5
Additional collateral, aggregate fair value	$ 2	$ 23

Risk Management and Hedging A_7

Risk Management and Hedging Activities - NPC - Balance Sheet Location (Details) - NPC - Commodity derivatives - Not Designated as Hedging - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Derivative asset, gross		$ 4
Derivative liability	$ (168)	(117)
Total	(168)	(113)
Net regulatory asset (liability) on derivative contracts	168	113
Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative asset, gross		4
Derivative liability	0	0
Total	0	4
Derivative Contracts - Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative asset, gross		0
Derivative liability	(88)	(55)
Total	(88)	(55)
Other Noncurrent Liabilities
Derivatives, Fair Value [Line Items]
Derivative asset, gross		0
Derivative liability	(80)	(62)
Total	$ (80)	$ (62)

Risk Management and Hedging A_8

Risk Management and Hedging Activities - NPC - Derivative Contract Volumes (Details) - NPC - Commodity derivatives MWh in Millions, Dth in Millions	Mar. 31, 2022DthMWh	Dec. 31, 2021DthMWh
Electricity purchases (sales), net
Notional Amounts of Outstanding Derivative Positions [Line Items]
Nonmonetary notional amount | MWh	3	1
Natural gas purchases
Notional Amounts of Outstanding Derivative Positions [Line Items]
Nonmonetary notional amount | Dth	138	119

Risk Management and Hedging A_9

Risk Management and Hedging Activities - NPC - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Commodity derivatives | NPC
Derivative [Line Items]
Derivative, net liability position, aggregate fair value	$ 7	$ 6

Risk Management and Hedging _10

Risk Management and Hedging Activities - SPPC - Balance Sheet Location (Details) - SPPC - Commodity derivatives - Not Designated as Hedging - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Derivative asset, gross	$ 1	$ 2
Derivative liability	(53)	(35)
Total	(52)	(33)
Net regulatory asset (liability) on derivative contracts	52	33
Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative asset, gross	1	2
Derivative liability	0	0
Total	1	2
Derivative Contracts - Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative asset, gross	0	0
Derivative liability	(28)	(16)
Total	(28)	(16)
Other Noncurrent Liabilities
Derivatives, Fair Value [Line Items]
Derivative asset, gross	0	0
Derivative liability	(25)	(19)
Total	$ (25)	$ (19)

Risk Management and Hedging _11

Risk Management and Hedging Activities - SPPC - Derivative Contract Volumes (Details) - SPPC - Commodity derivatives MWh in Millions, Dth in Millions	Mar. 31, 2022DthMWh	Dec. 31, 2021MWhDth
Electricity purchases (sales), net
Notional Amounts of Outstanding Derivative Positions [Line Items]
Nonmonetary notional amount | MWh	1	1
Natural gas purchases
Notional Amounts of Outstanding Derivative Positions [Line Items]
Nonmonetary notional amount | Dth	60	53

Risk Management and Hedging _12

Risk Management and Hedging Activities -SPPC - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Commodity derivatives | SPPC
Derivative [Line Items]
Derivative, net liability position, aggregate fair value	$ 2	$ 0

Fair Value Measurements - BHE (

Fair Value Measurements - BHE (Details) - Recurring - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, offset	$ (64)	$ (47)
Assets, fair value	9,790	10,843
Derivative liability, offset	69	73
Derivative liability	(333)	(277)
Cash collateral payable	5	26
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	8,119	9,160
Derivative liability	(1)	(2)
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	1,651	1,637
Derivative liability	(91)	(123)
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	84	93
Derivative liability	(310)	(225)
Mortgage loans held for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	975	1,263
Mortgage loans held for sale | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	0	0
Mortgage loans held for sale | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	975	1,263
Mortgage loans held for sale | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	0	0
Money market mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	715	554
Money market mutual funds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	715	554
Money market mutual funds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Money market mutual funds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
U.S. government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	225	232
U.S. government obligations | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	225	232
U.S. government obligations | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
U.S. government obligations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
International government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	1	2
International government obligations | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
International government obligations | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	1	2
International government obligations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Corporate obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	79	90
Corporate obligations | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Corporate obligations | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	79	90
Corporate obligations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Municipal obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	3	3
Municipal obligations | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Municipal obligations | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	3	3
Municipal obligations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Agency, asset and mortgage-backed obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	1	2
Agency, asset and mortgage-backed obligations | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Agency, asset and mortgage-backed obligations | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	1	2
Agency, asset and mortgage-backed obligations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
U.S. companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	415	428
U.S. companies | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	415	428
U.S. companies | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
U.S. companies | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
International companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	6,455	7,703
International companies | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	6,455	7,703
International companies | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
International companies | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Investment funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	285	237
Investment funds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	285	237
Investment funds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Investment funds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Commodity derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, offset	(64)	(47)
Derivative asset	542	302
Derivative liability, offset	69	73
Derivative liability	(318)	(266)
Commodity derivatives | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	13	5
Derivative liability, gross	(1)	(2)
Commodity derivatives | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	534	271
Derivative liability, gross	(88)	(113)
Commodity derivatives | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	59	73
Derivative liability, gross	(298)	(224)
Foreign currency exchange rate derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset		3
Derivative liability	(3)	(3)
Foreign currency exchange rate derivatives | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross		0
Derivative liability, gross	0	0
Foreign currency exchange rate derivatives | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross		3
Derivative liability, gross	(3)	(3)
Foreign currency exchange rate derivatives | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross		0
Derivative liability, gross	0	0
Interest rate derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	94	24
Derivative liability, offset	0
Derivative liability	(12)	(8)
Interest rate derivatives | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	11	1
Derivative liability, gross	0	0
Interest rate derivatives | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	58	3
Derivative liability, gross	0	(7)
Interest rate derivatives | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	25	20
Derivative liability, gross	$ (12)	$ (1)

Fair Value Measurements - BHE -

Fair Value Measurements - BHE - Level 3 (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Commodity derivatives
Fair Value, Assets (Liabilities), Net, Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ (151)	$ 116
Changes included in earnings	(56)	(6)
Changes in fair value recognized in OCI	5	(1)
Changes in fair value recognized in net regulatory assets	(60)	16
Settlements	23	(1)
Ending balance	(239)	124
Interest rate derivatives
Fair Value, Assets (Liabilities), Net, Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	19	62
Changes included in earnings	(6)	(21)
Changes in fair value recognized in OCI	0	0
Changes in fair value recognized in net regulatory assets	0	0
Settlements	0	0
Ending balance	$ 13	$ 41

Fair Value Measurements - BHE_2

Fair Value Measurements - BHE - Debt (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 49,905	$ 49,762
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 52,246	$ 57,189

Fair Value Measurements - PAC (

Fair Value Measurements - PAC (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, offset	$ (64)	$ (47)
Assets, fair value	9,790	10,843
Derivative liability, offset	69	73
Derivative liability	(333)	(277)
Cash collateral receivable (payable)	5	26
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	8,119	9,160
Derivative liability	(1)	(2)
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	1,651	1,637
Derivative liability	(91)	(123)
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	84	93
Derivative liability	(310)	(225)
Commodity derivatives | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, offset	(64)	(47)
Derivative asset	542	302
Derivative liability, offset	69	73
Derivative liability	(318)	(266)
Commodity derivatives | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	13	5
Derivative liability, gross	(1)	(2)
Commodity derivatives | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	534	271
Derivative liability, gross	(88)	(113)
Commodity derivatives | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	59	73
Derivative liability, gross	(298)	(224)
Money market mutual funds | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	715	554
Money market mutual funds | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	715	554
Money market mutual funds | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Money market mutual funds | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Investment funds | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	285	237
Investment funds | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	285	237
Investment funds | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Investment funds | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
PAC | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	529	304
PAC | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	347	208
PAC | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	207	104
PAC | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	0	0
PAC | Commodity derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash collateral receivable (payable)	(17)	5
PAC | Commodity derivatives | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, offset	(25)	(8)
Derivative asset	182	96
Derivative liability, offset	8	13
Derivative liability	(4)	(38)
Cash collateral receivable (payable)	(17)	5
PAC | Commodity derivatives | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	0	0
Derivative liability, gross	0	0
PAC | Commodity derivatives | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	207	104
Derivative liability, gross	(12)	(51)
PAC | Commodity derivatives | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	0	0
Derivative liability, gross	0	0
PAC | Money market mutual funds | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	319	181
PAC | Money market mutual funds | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	319	181
PAC | Money market mutual funds | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
PAC | Money market mutual funds | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
PAC | Investment funds | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	28	27
PAC | Investment funds | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	28	27
PAC | Investment funds | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
PAC | Investment funds | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	$ 0	$ 0

Fair Value Measurements - PAC -

Fair Value Measurements - PAC - Debt (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 49,905	$ 49,762
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	52,246	57,189
PAC
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	8,722	8,730
PAC | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 9,423	$ 10,374

Fair Value Measurements - MEC (

Fair Value Measurements - MEC (Details) - Recurring - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, offset	$ (64)	$ (47)
Assets, fair value	9,790	10,843
Derivative liability, offset	69	73
Cash collateral payable	5	26
Money market mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	715	554
U.S. government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	225	232
International government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	1	2
Corporate obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	79	90
Municipal obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	3	3
Agency, asset and mortgage-backed obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	1	2
U.S. companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	415	428
International companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	6,455	7,703
Investment funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	285	237
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	8,119	9,160
Level 1 | Money market mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	715	554
Level 1 | U.S. government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	225	232
Level 1 | International government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Level 1 | Corporate obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Level 1 | Municipal obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Level 1 | Agency, asset and mortgage-backed obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Level 1 | U.S. companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	415	428
Level 1 | International companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	6,455	7,703
Level 1 | Investment funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	285	237
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	1,651	1,637
Level 2 | Money market mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Level 2 | U.S. government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Level 2 | International government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	1	2
Level 2 | Corporate obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	79	90
Level 2 | Municipal obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	3	3
Level 2 | Agency, asset and mortgage-backed obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	1	2
Level 2 | U.S. companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Level 2 | International companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Level 2 | Investment funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	84	93
Level 3 | Money market mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Level 3 | U.S. government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Level 3 | International government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Level 3 | Corporate obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Level 3 | Municipal obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Level 3 | Agency, asset and mortgage-backed obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Level 3 | U.S. companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Level 3 | International companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Level 3 | Investment funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Commodity derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, offset	(64)	(47)
Derivative liability, offset	69	73
Commodity derivatives | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	13	5
Derivative liability	(1)	(2)
Commodity derivatives | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	534	271
Derivative liability	(88)	(113)
Commodity derivatives | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	59	73
Derivative liability	(298)	(224)
MEC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	958	1,041
Cash collateral payable	0	5
MEC | Money market mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	132	228
MEC | U.S. government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	225	232
MEC | International government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	1	2
MEC | Corporate obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	79	90
MEC | Municipal obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	3	3
MEC | Agency, asset and mortgage-backed obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	1	2
MEC | U.S. companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	415	428
MEC | International companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	9	10
MEC | Investment funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	23	18
MEC | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	804	916
MEC | Level 1 | Money market mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	132	228
MEC | Level 1 | U.S. government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	225	232
MEC | Level 1 | International government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
MEC | Level 1 | Corporate obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
MEC | Level 1 | Municipal obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
MEC | Level 1 | Agency, asset and mortgage-backed obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
MEC | Level 1 | U.S. companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	415	428
MEC | Level 1 | International companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	9	10
MEC | Level 1 | Investment funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	23	18
MEC | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	150	129
MEC | Level 2 | Money market mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
MEC | Level 2 | U.S. government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
MEC | Level 2 | International government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	1	2
MEC | Level 2 | Corporate obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	79	90
MEC | Level 2 | Municipal obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	3	3
MEC | Level 2 | Agency, asset and mortgage-backed obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	1	2
MEC | Level 2 | U.S. companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
MEC | Level 2 | International companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
MEC | Level 2 | Investment funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0
MEC | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	4	3
MEC | Level 3 | Money market mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
MEC | Level 3 | U.S. government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
MEC | Level 3 | International government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
MEC | Level 3 | Corporate obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
MEC | Level 3 | Municipal obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
MEC | Level 3 | Agency, asset and mortgage-backed obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
MEC | Level 3 | U.S. companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
MEC | Level 3 | International companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
MEC | Level 3 | Investment funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0
MEC | Commodity derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	70	28
Derivative asset, offset	0	(7)
Derivative liability	(1)	(2)
Derivative liability, offset	0	12
MEC | Commodity derivatives | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	0	0
Derivative liability	(1)	0
MEC | Commodity derivatives | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	66	32
Derivative liability	0	(6)
MEC | Commodity derivatives | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	4	3
Derivative liability	$ 0	$ (8)

Fair Value Measurements - MEC -

Fair Value Measurements - MEC - Debt (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 49,905	$ 49,762
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	52,246	57,189
MEC
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	7,726	7,721
MEC | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 8,196	$ 9,037

Fair Value Measurements - LLC (

Fair Value Measurements - LLC (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 49,905	$ 49,762
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	52,246	57,189
MidAmerican Funding, LLC
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	7,966	7,961
MidAmerican Funding, LLC | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 8,480	$ 9,350

Fair Value Measurements - NPC (

Fair Value Measurements - NPC (Details) - Recurring - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	$ 9,790	$ 10,843
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	8,119	9,160
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	1,651	1,637
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	84	93
Commodity derivatives | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	13	5
Derivative liability	(1)	(2)
Commodity derivatives | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	534	271
Derivative liability	(88)	(113)
Commodity derivatives | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	59	73
Derivative liability	(298)	(224)
NPC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	46	41
NPC | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	46	37
NPC | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	0	0
NPC | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	0	4
NPC | Money market mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	43	34
NPC | Money market mutual funds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	43	34
NPC | Money market mutual funds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
NPC | Money market mutual funds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
NPC | Investment funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	3	3
NPC | Investment funds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	3	3
NPC | Investment funds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
NPC | Investment funds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
NPC | Commodity derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross		4
Derivative liability	(168)	(117)
NPC | Commodity derivatives | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross		0
Derivative liability	0	0
NPC | Commodity derivatives | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross		0
Derivative liability	0	0
NPC | Commodity derivatives | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross		4
Derivative liability	$ (168)	$ (117)

Fair Value Measurements - NPC -

Fair Value Measurements - NPC - Level 3 (Details) - NPC - Commodity - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Fair Value, Assets (Liabilities), Net, Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ (113)	$ 15
Changes in fair value recognized in regulatory assets	(56)	11
Settlements	1	1
Ending balance	$ (168)	$ 27

Fair Value Measurements - NPC_2

Fair Value Measurements - NPC - Debt (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 49,905	$ 49,762
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	52,246	57,189
NPC
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	2,700	2,499
NPC | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 2,985	$ 3,067

Fair Value Measurements - SPPC

Fair Value Measurements - SPPC (Details) - Recurring - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	$ 9,790	$ 10,843
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	8,119	9,160
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	1,651	1,637
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	84	93
Commodity derivatives | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	13	5
Derivative liability	(1)	(2)
Commodity derivatives | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	534	271
Derivative liability	(88)	(113)
Commodity derivatives | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	59	73
Derivative liability	(298)	(224)
SPPC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	15	13
SPPC | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	14	11
SPPC | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	0	0
SPPC | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	1	2
SPPC | Money market mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	13	10
SPPC | Money market mutual funds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	13	10
SPPC | Money market mutual funds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
SPPC | Money market mutual funds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
SPPC | Investment funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	1	1
SPPC | Investment funds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	1	1
SPPC | Investment funds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
SPPC | Investment funds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
SPPC | Commodity derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	1	2
Derivative liability	(53)	(35)
SPPC | Commodity derivatives | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	0	0
Derivative liability	0	0
SPPC | Commodity derivatives | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	0	0
Derivative liability	0	0
SPPC | Commodity derivatives | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, gross	1	2
Derivative liability	$ (53)	$ (35)

Fair Value Measurements - SPP_2

Fair Value Measurements - SPPC - Level 3 (Details) - Commodity - SPPC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Fair Value, Assets (Liabilities), Net, Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ (33)	$ 7
Changes in fair value recognized in regulatory assets	(19)	5
Ending balance	$ (52)	$ 12

Fair Value Measurements - SPP_3

Fair Value Measurements - SPPC - Debt (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 49,905	$ 49,762
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	52,246	57,189
SPPC
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	1,164	1,164
SPPC | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 1,261	$ 1,316

Fair Value Measurements - EEGH

Fair Value Measurements - EEGH (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	$ 9,790	$ 10,843
Derivative liability	(333)	(277)
Recurring | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	43	16
Derivative liability	(5)	(3)
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	8,119	9,160
Derivative liability	(1)	(2)
Recurring | Level 1 | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	43	13
Derivative liability	0	0
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	1,651	1,637
Derivative liability	(91)	(123)
Recurring | Level 2 | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0	3
Derivative liability	(5)	(3)
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	84	93
Derivative liability	(310)	(225)
Recurring | Level 3 | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0	0
Derivative liability	0	0
Money market mutual funds | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	715	554
Money market mutual funds | Recurring | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	28
Money market mutual funds | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	715	554
Money market mutual funds | Recurring | Level 1 | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	28
Money market mutual funds | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Money market mutual funds | Recurring | Level 2 | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0
Money market mutual funds | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Money market mutual funds | Recurring | Level 3 | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0
Investment funds | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	15	13
Investment funds | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	285	237
Investment funds | Recurring | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	15	13
Investment funds | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	285	237
Investment funds | Recurring | Level 1 | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	15	13
Investment funds | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Investment funds | Recurring | Level 2 | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Investment funds | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Investment funds | Recurring | Level 3 | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Commodity derivatives | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	542	302
Derivative liability	(318)	(266)
Commodity derivatives | Recurring | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	(2)
Commodity derivatives | Recurring | Level 1 | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	0
Commodity derivatives | Recurring | Level 2 | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	(2)
Commodity derivatives | Recurring | Level 3 | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	0
Foreign currency exchange rate derivatives | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset		3
Derivative liability	(3)	(3)
Foreign currency exchange rate derivatives | Recurring | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset		3
Derivative liability	(3)	(3)
Foreign currency exchange rate derivatives | Recurring | Level 1 | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset		0
Derivative liability	0	0
Foreign currency exchange rate derivatives | Recurring | Level 2 | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset		3
Derivative liability	(3)	(3)
Foreign currency exchange rate derivatives | Recurring | Level 3 | EEGH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset		0
Derivative liability	0	0
Interest rate derivatives | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	94	24
Derivative liability	$ (12)	$ (8)

Fair Value Measurements - EEG_2

Fair Value Measurements - EEGH - Debt (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 49,905	$ 49,762
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	52,246	57,189
EEGH
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	3,899	3,906
EEGH | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 3,911	$ 4,266

Commitments and Contingencies -

Commitments and Contingencies - Legal Matters (Details) - 2020 Wildfires - PAC naturalGasProducer in Thousands, a in Thousands, $ in Millions	1 Months Ended
	Sep. 30, 2020USD ($)anaturalGasProducer	Mar. 31, 2022USD ($)
Loss Contingencies [Line Items]
Number of acres burned | a	500
Number of structures destroyed | naturalGasProducer	2
Fire suppression costs	$ 150
Estimate of possible loss		$ 136

Commitments and Contingencies_2

Commitments and Contingencies - Environmental Laws and Regulations (Details) - PAC - Klamath Hydroelectric System $ in Millions	3 Months Ended
	Mar. 31, 2022USD ($)
ContractualObligationFiscalYearMaturityScheduleTable [Line Items]
Dam removal cost limit	$ 200
Additional dam removal costs, California bond measure	250
Hydroelectric dam removal cost, additional contingency funding	45
Hydroelectric dam removal cost, total funding	$ 450

Commitments and Contingencies_3

Commitments and Contingencies - Transmission Rates (Details) - MEC - Transmission $ in Millions	3 Months Ended
	Mar. 31, 2022USD ($)
Loss Contingencies [Line Items]
Public utilities, approved return on equity adder	0.50%
Unfavorable Regulatory Action
Loss Contingencies [Line Items]
Accrued liability for estimated transmission billings refunds	$ 8
Prior to September 2016
Loss Contingencies [Line Items]
Public utilities, approved return on equity	12.38%
November 2013 to February 2015
Loss Contingencies [Line Items]
Public utilities, approved return on equity	10.32%
Public utilities, proposed return on equity	9.15%
February 2015 through May 2016
Loss Contingencies [Line Items]
Public utilities, proposed return on equity	8.67%
Nov 2019 Order For Nov 2013 to Feb 2015 and Sept 2016 Forward
Loss Contingencies [Line Items]
Public utilities, approved return on equity	9.88%
Public utilities, approved return on equity plus adder	10.38%
May 2020 Order For Nov 2013 to Feb 2015 and Sept 2016 Forward
Loss Contingencies [Line Items]
Public utilities, approved return on equity	10.02%
Public utilities, approved return on equity plus adder	10.52%

Revenue from Contracts with C_3

Revenue from Contracts with Customers - BHE (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Total Customer Revenue	$ 4,719	$ 4,712
Operating revenue	6,030	6,081
Energy
Disaggregation of Revenue [Line Items]
Operating revenue	4,823	4,849
Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	104	137
PAC
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1,292	1,229
Operating revenue	1,297	1,242
PAC | Energy
Disaggregation of Revenue [Line Items]
Operating revenue	1,297	1,242
PAC | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	5	13
MidAmerican Funding
Disaggregation of Revenue [Line Items]
Total Customer Revenue	987	1,062
Operating revenue	1,005	1,067
MidAmerican Funding | Energy
Disaggregation of Revenue [Line Items]
Operating revenue	1,005	1,067
MidAmerican Funding | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	18	5
NV Energy
Disaggregation of Revenue [Line Items]
Total Customer Revenue	688	585
Operating revenue	693	591
NV Energy | Energy
Disaggregation of Revenue [Line Items]
Operating revenue	693	591
NV Energy | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	5	6
Northern Powergrid
Disaggregation of Revenue [Line Items]
Total Customer Revenue	284	273
Operating revenue	315	300
Northern Powergrid | Energy
Disaggregation of Revenue [Line Items]
Operating revenue	315	300
Northern Powergrid | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	31	27
BHE Pipeline Group
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1,024	1,071
Operating revenue	1,035	1,093
BHE Pipeline Group | Energy
Disaggregation of Revenue [Line Items]
Operating revenue	1,035	1,093
BHE Pipeline Group | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	11	22
BHE Transmission
Disaggregation of Revenue [Line Items]
Total Customer Revenue	183	180
Operating revenue	183	180
BHE Transmission | Energy
Disaggregation of Revenue [Line Items]
Operating revenue	183	180
BHE Transmission | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	0	0
BHE Renewables
Disaggregation of Revenue [Line Items]
Total Customer Revenue	169	166
BHE Renewables | Energy
Disaggregation of Revenue [Line Items]
Operating revenue	167	190
BHE Renewables | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	(2)	24
BHE and Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	92	146
Operating revenue	128	186
BHE and Other | Energy
Disaggregation of Revenue [Line Items]
Operating revenue	128	186
BHE and Other | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	36	40
Regulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	4,115	4,094
Regulated | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	2,256	2,108
Regulated | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	388	498
Regulated | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	236	193
Regulated | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	509	496
Regulated | Interstate pipeline
Disaggregation of Revenue [Line Items]
Total Customer Revenue	704	774
Regulated | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	22	25
Regulated | PAC
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1,292	1,229
Regulated | PAC | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1,185	1,145
Regulated | PAC | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | PAC | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	55	36
Regulated | PAC | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	32	25
Regulated | PAC | Interstate pipeline
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | PAC | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	20	23
Regulated | MidAmerican Funding
Disaggregation of Revenue [Line Items]
Total Customer Revenue	985	1,052
Regulated | MidAmerican Funding | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	472	452
Regulated | MidAmerican Funding | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	337	460
Regulated | MidAmerican Funding | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	161	125
Regulated | MidAmerican Funding | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	15	15
Regulated | MidAmerican Funding | Interstate pipeline
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | MidAmerican Funding | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | NV Energy
Disaggregation of Revenue [Line Items]
Total Customer Revenue	688	585
Regulated | NV Energy | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	599	511
Regulated | NV Energy | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	51	38
Regulated | NV Energy | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	20	15
Regulated | NV Energy | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	17	21
Regulated | NV Energy | Interstate pipeline
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | NV Energy | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1	0
Regulated | Northern Powergrid
Disaggregation of Revenue [Line Items]
Total Customer Revenue	269	263
Regulated | Northern Powergrid | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | Northern Powergrid | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | Northern Powergrid | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | Northern Powergrid | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	269	263
Regulated | Northern Powergrid | Interstate pipeline
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | Northern Powergrid | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE Pipeline Group
Disaggregation of Revenue [Line Items]
Total Customer Revenue	746	834
Regulated | BHE Pipeline Group | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE Pipeline Group | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE Pipeline Group | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	17
Regulated | BHE Pipeline Group | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE Pipeline Group | Interstate pipeline
Disaggregation of Revenue [Line Items]
Total Customer Revenue	745	815
Regulated | BHE Pipeline Group | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1	2
Regulated | BHE Transmission
Disaggregation of Revenue [Line Items]
Total Customer Revenue	176	172
Regulated | BHE Transmission | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE Transmission | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE Transmission | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE Transmission | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	176	172
Regulated | BHE Transmission | Interstate pipeline
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE Transmission | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE Renewables
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE Renewables | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE Renewables | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE Renewables | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE Renewables | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE Renewables | Interstate pipeline
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE Renewables | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE and Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	(41)	(41)
Regulated | BHE and Other | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE and Other | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE and Other | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE and Other | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Regulated | BHE and Other | Interstate pipeline
Disaggregation of Revenue [Line Items]
Total Customer Revenue	(41)	(41)
Regulated | BHE and Other | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Nonregulated | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	604	618
Nonregulated | PAC | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Nonregulated | MidAmerican Funding | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	2	10
Nonregulated | NV Energy | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
Nonregulated | Northern Powergrid | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	15	10
Nonregulated | BHE Pipeline Group | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	278	237
Nonregulated | BHE Transmission | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	7	8
Nonregulated | BHE Renewables | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	169	166
Nonregulated | BHE and Other | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	$ 133	$ 187

Revenue from Contracts with C_4

Revenue from Contracts with Customers - BHE - Real Estate Services (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Total Customer Revenue	$ 4,719	$ 4,712
Operating revenue	6,030	6,081
Real estate
Disaggregation of Revenue [Line Items]
Operating revenue	1,207	1,232
Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	104	137
HomeServices
Disaggregation of Revenue [Line Items]
Operating revenue	1,207	1,232
HomeServices | Real estate
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1,112	1,040
Operating revenue	1,207	1,232
HomeServices | Brokerage
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1,092	1,022
HomeServices | Franchise
Disaggregation of Revenue [Line Items]
Total Customer Revenue	20	18
HomeServices | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	$ 95	$ 192

Revenue from Contracts with C_5

Revenue from Contracts with Customers - BHE - Remaining Performance Obligation Total (Details) - BHE Pipeline Group $ in Millions	Mar. 31, 2022USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 24,981
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 2,878
Performance obligations expected to be satisfied, expected timing of satisfaction, period	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 22,103
Performance obligations expected to be satisfied, expected timing of satisfaction, period

Revenue from Contracts with C_6

Revenue from Contracts with Customers - PAC (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Total Customer Revenue	$ 4,719	$ 4,712
Operating revenue	6,030	6,081
Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	104	137
Regulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	4,115	4,094
Regulated | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	2,256	2,108
Regulated | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	236	193
Regulated | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	509	496
Regulated | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	22	25
PAC
Disaggregation of Revenue [Line Items]
Operating revenue	1,297	1,242
PAC | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	5	13
PAC | Regulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1,292	1,229
PAC | Regulated | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1,185	1,145
PAC | Regulated | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	55	36
PAC | Regulated | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	32	25
PAC | Regulated | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	20	23
PAC | Regulated | Residential | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	505	483
PAC | Regulated | Commercial | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	370	359
PAC | Regulated | Industrial | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	273	271
PAC | Regulated | Other retail | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	$ 37	$ 32

Revenue from Contracts with C_7

Revenue from Contracts with Customers - MEC (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Total Customer Revenue	$ 4,719	$ 4,712
Operating revenue	6,030	6,081
Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	104	137
MEC
Disaggregation of Revenue [Line Items]
Total Customer Revenue	987	1,062
Operating revenue	1,005	1,067
MEC | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1	10
MEC | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	18	5
Regulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	4,115	4,094
Regulated | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	2,256	2,108
Regulated | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	388	498
Regulated | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	236	193
Regulated | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	22	25
Regulated | MEC | Retail
Disaggregation of Revenue [Line Items]
Total Customer Revenue	809	912
Regulated | MEC | Retail | Residential
Disaggregation of Revenue [Line Items]
Total Customer Revenue	393	469
Regulated | MEC | Retail | Commercial
Disaggregation of Revenue [Line Items]
Total Customer Revenue	162	200
Regulated | MEC | Retail | Industrial
Disaggregation of Revenue [Line Items]
Total Customer Revenue	207	202
Regulated | MEC | Retail | Natural gas transportation services
Disaggregation of Revenue [Line Items]
Total Customer Revenue	14	10
Regulated | MEC | Retail | Other retail
Disaggregation of Revenue [Line Items]
Total Customer Revenue	33	31
Regulated | MEC | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	162	125
Regulated | MEC | Multi-value transmission projects | Multi-value transmission projects
Disaggregation of Revenue [Line Items]
Total Customer Revenue	15	15
Regulated electric | MEC
Disaggregation of Revenue [Line Items]
Operating revenue	608	545
Regulated electric | Regulated | MEC
Disaggregation of Revenue [Line Items]
Total Customer Revenue	591	541
Operating revenue	608	545
Regulated electric | Regulated | MEC | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	472	452
Regulated electric | Regulated | MEC | Retail electric | Residential
Disaggregation of Revenue [Line Items]
Total Customer Revenue	168	161
Regulated electric | Regulated | MEC | Retail electric | Commercial
Disaggregation of Revenue [Line Items]
Total Customer Revenue	74	71
Regulated electric | Regulated | MEC | Retail electric | Industrial
Disaggregation of Revenue [Line Items]
Total Customer Revenue	198	190
Regulated electric | Regulated | MEC | Retail electric | Other retail
Disaggregation of Revenue [Line Items]
Total Customer Revenue	32	30
Regulated electric | Regulated | MEC | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	104	74
Regulated electric | Regulated | MEC | Multi-value transmission projects | Multi-value transmission projects
Disaggregation of Revenue [Line Items]
Total Customer Revenue	15	15
Regulated electric | Regulated | MEC | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	17	4
Regulated natural gas | MEC
Disaggregation of Revenue [Line Items]
Operating revenue	396	512
Regulated natural gas | Regulated | MEC
Disaggregation of Revenue [Line Items]
Total Customer Revenue	395	511
Operating revenue	396	512
Regulated natural gas | Regulated | MEC | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	337	460
Regulated natural gas | Regulated | MEC | Retail gas | Residential
Disaggregation of Revenue [Line Items]
Total Customer Revenue	225	308
Regulated natural gas | Regulated | MEC | Retail gas | Commercial
Disaggregation of Revenue [Line Items]
Total Customer Revenue	88	129
Regulated natural gas | Regulated | MEC | Retail gas | Industrial
Disaggregation of Revenue [Line Items]
Total Customer Revenue	9	12
Regulated natural gas | Regulated | MEC | Retail gas | Natural gas transportation services
Disaggregation of Revenue [Line Items]
Total Customer Revenue	14	10
Regulated natural gas | Regulated | MEC | Retail gas | Other retail
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1	1
Regulated natural gas | Regulated | MEC | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	58	51
Regulated natural gas | Regulated | MEC | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	1	1
Other | MEC
Disaggregation of Revenue [Line Items]
Operating revenue	1	10
Other | Nonregulated | MEC
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1	10
Operating revenue	1	10
Other | Nonregulated | MEC | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1	10
Other | Nonregulated | MEC | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	$ 0	$ 0

Revenue from Contracts with C_8

Revenue from Contracts with Customers - LLC (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Total Customer Revenue	$ 4,719	$ 4,712
Nonregulated | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	604	618
Other | MidAmerican Funding, LLC | Nonregulated | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	$ 0	$ 0

Revenue from Contracts with C_9

Revenue from Contracts with Customers - NPC (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Total Customer Revenue	$ 4,719	$ 4,712
Operating revenue	6,030	6,081
Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	104	137
Regulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	4,115	4,094
Regulated | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	2,256	2,108
NPC
Disaggregation of Revenue [Line Items]
Operating revenue	415	370
NPC | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	5	5
NPC | Regulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	410	365
NPC | Regulated | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	394	351
NPC | Regulated | Wholesale, transmission and other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	16	14
NPC | Customer Revenue | Regulated | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	389	346
NPC | Customer Revenue | Regulated | Retail electric | Residential
Disaggregation of Revenue [Line Items]
Total Customer Revenue	214	196
NPC | Customer Revenue | Regulated | Retail electric | Commercial
Disaggregation of Revenue [Line Items]
Total Customer Revenue	96	84
NPC | Customer Revenue | Regulated | Retail electric | Industrial
Disaggregation of Revenue [Line Items]
Total Customer Revenue	78	63
NPC | Customer Revenue | Regulated | Retail electric | Other retail
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1	3
NPC | Distribution only service | Regulated | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	$ 5	$ 5

Revenue from Contracts with _10

Revenue from Contracts with Customers - SPPC (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Total Customer Revenue	$ 4,719	$ 4,712
Operating revenue	6,030	6,081
Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	104	137
Regulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	4,115	4,094
Regulated | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	2,256	2,108
Regulated | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	388	498
SPPC
Disaggregation of Revenue [Line Items]
Operating revenue	279	220
SPPC | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	1	1
SPPC | Regulated electric
Disaggregation of Revenue [Line Items]
Operating revenue	227	181
SPPC | Regulated electric | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	0	0
SPPC | Regulated natural gas
Disaggregation of Revenue [Line Items]
Operating revenue	52	39
SPPC | Regulated natural gas | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	1	1
SPPC | Regulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	278	219
SPPC | Regulated | Wholesale, transmission and other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	21	15
SPPC | Regulated | Regulated electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	227	181
SPPC | Regulated | Regulated electric | Wholesale, transmission and other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	21	15
SPPC | Regulated | Regulated natural gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	51	38
SPPC | Regulated | Regulated natural gas | Wholesale, transmission and other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
SPPC | Regulated | Total retail
Disaggregation of Revenue [Line Items]
Total Customer Revenue	257	204
SPPC | Regulated | Total retail | Regulated electric | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	206	166
SPPC | Regulated | Total retail | Regulated natural gas | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	51	38
SPPC | Regulated | Customer Revenue
Disaggregation of Revenue [Line Items]
Total Customer Revenue	256	203
SPPC | Regulated | Customer Revenue | Residential
Disaggregation of Revenue [Line Items]
Total Customer Revenue	117	96
SPPC | Regulated | Customer Revenue | Commercial
Disaggregation of Revenue [Line Items]
Total Customer Revenue	85	64
SPPC | Regulated | Customer Revenue | Industrial
Disaggregation of Revenue [Line Items]
Total Customer Revenue	53	42
SPPC | Regulated | Customer Revenue | Other retail
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1	1
SPPC | Regulated | Customer Revenue | Regulated electric | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	205	165
SPPC | Regulated | Customer Revenue | Regulated electric | Retail electric | Residential
Disaggregation of Revenue [Line Items]
Total Customer Revenue	85	71
SPPC | Regulated | Customer Revenue | Regulated electric | Retail electric | Commercial
Disaggregation of Revenue [Line Items]
Total Customer Revenue	70	54
SPPC | Regulated | Customer Revenue | Regulated electric | Retail electric | Industrial
Disaggregation of Revenue [Line Items]
Total Customer Revenue	49	39
SPPC | Regulated | Customer Revenue | Regulated electric | Retail electric | Other retail
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1	1
SPPC | Regulated | Customer Revenue | Regulated natural gas | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	51	38
SPPC | Regulated | Customer Revenue | Regulated natural gas | Retail gas | Residential
Disaggregation of Revenue [Line Items]
Total Customer Revenue	32	25
SPPC | Regulated | Customer Revenue | Regulated natural gas | Retail gas | Commercial
Disaggregation of Revenue [Line Items]
Total Customer Revenue	15	10
SPPC | Regulated | Customer Revenue | Regulated natural gas | Retail gas | Industrial
Disaggregation of Revenue [Line Items]
Total Customer Revenue	4	3
SPPC | Regulated | Customer Revenue | Regulated natural gas | Retail gas | Other retail
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0
SPPC | Regulated | Distribution only service
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1	1
SPPC | Regulated | Distribution only service | Regulated electric | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1	1
SPPC | Regulated | Distribution only service | Regulated natural gas | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	$ 0	$ 0

Revenue from Contracts with _11

Revenue from Contracts with Customers - EEGH (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue from External Customer [Line Items]
Total Customer Revenue	$ 4,719	$ 4,712
Operating revenue	6,030	6,081
EEGH
Revenue from External Customer [Line Items]
Total Customer Revenue	488	486
Operating revenue	482	486
Regulated
Revenue from External Customer [Line Items]
Total Customer Revenue	4,115	4,094
Regulated | EEGH
Revenue from External Customer [Line Items]
Total Customer Revenue	285	296
Nonregulated | EEGH
Revenue from External Customer [Line Items]
Total Customer Revenue	203	190
Gas transportation and storage | Regulated
Revenue from External Customer [Line Items]
Total Customer Revenue	388	498
Gas transportation and storage | Regulated | EEGH
Revenue from External Customer [Line Items]
Total Customer Revenue	285	279
Wholesale | Regulated
Revenue from External Customer [Line Items]
Total Customer Revenue	236	193
Wholesale | Regulated | EEGH
Revenue from External Customer [Line Items]
Total Customer Revenue	0	17
Other revenue
Revenue from External Customer [Line Items]
Operating revenue	104	137
Other revenue | EEGH
Revenue from External Customer [Line Items]
Operating revenue	$ (6)	$ 0

Revenue from Contracts with _12

Revenue from Contracts with Customers - EEGH - Remaining Performance Obligation (Details) - EEGH $ in Millions	Mar. 31, 2022USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 18,893
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 1,832
Performance obligations expected to be satisfied, expected timing of satisfaction, period	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 17,061
Performance obligations expected to be satisfied, expected timing of satisfaction, period

Components of Other Comprehen_3

Components of Other Comprehensive Income (Loss), Net - BHE (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	$ 50,589	$ 46,977
Other comprehensive income (loss)	(18)	112
Balance	50,424	47,051
Accumulated Other Comprehensive (Loss) Income, Net
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	(1,340)	(1,552)
Other comprehensive income (loss)	(18)	112
Balance	(1,358)	(1,440)
Unrecognized Amounts on Retirement Benefits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	(318)	(492)
Other comprehensive income (loss)	15	7
Balance	(303)	(485)
Foreign Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	(1,086)	(1,062)
Other comprehensive income (loss)	(110)	91
Balance	(1,196)	(971)
Unrealized Losses on Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	59	(8)
Other comprehensive income (loss)	77	14
Balance	136	6
Noncontrolling Interest
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	(5)	(10)
Other comprehensive income (loss)	0	0
Balance	$ (5)	$ (10)

Components of Other Comprehen_4

Components of Other Comprehensive Income (Loss), Net - EEGH (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	$ 50,589	$ 46,977
Other comprehensive income (loss)	(18)	112
Balance	50,424	47,051
EEGH
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	7,494	6,995
Other comprehensive income (loss)	5	12
Balance	7,590	7,078
Accumulated Other Comprehensive (Loss) Income, Net
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	(1,340)	(1,552)
Other comprehensive income (loss)	(18)	112
Balance	(1,358)	(1,440)
Accumulated Other Comprehensive (Loss) Income, Net | EEGH
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	(43)	(53)
Other comprehensive income (loss)	5	8
Balance	(38)	(45)
Unrecognized Amounts on Retirement Benefits
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	(318)	(492)
Other comprehensive income (loss)	15	7
Balance	(303)	(485)
Unrecognized Amounts on Retirement Benefits | EEGH
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	(6)	(12)
Other comprehensive income (loss)	1	2
Balance	(5)	(10)
Unrealized Losses on Cash Flow Hedges
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	59	(8)
Other comprehensive income (loss)	77	14
Balance	136	6
Unrealized Losses on Cash Flow Hedges | EEGH
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	(42)	(51)
Other comprehensive income (loss)	4	10
Balance	(38)	(41)
Noncontrolling Interest
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	(5)	(10)
Other comprehensive income (loss)	0	0
Balance	(5)	(10)
Noncontrolling Interest | EEGH
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	(5)	(10)
Other comprehensive income (loss)	0	4
Balance	$ (5)	$ (6)

Segment Information - BHE (Deta

Segment Information - BHE (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Segment Reporting Information [Line Items]
Operating revenue	$ 6,030	$ 6,081
Depreciation and amortization	1,022	927
Operating income	1,236	1,333
Interest expense	532	530
Capitalized interest	17	14
Allowance for equity funds	38	26
Interest and dividend income	23	21
Losses on marketable securities, net	(1,257)	(1,118)
Other, net	5	8
Income (loss) before income tax expense (benefit) and equity income (loss)	(470)	(246)
Total loss on common shares	(145)	(34)
Assets	131,469		$ 132,065
PAC
Segment Reporting Information [Line Items]
Operating revenue	1,297	1,242
Depreciation and amortization	280	264
Operating income	216	234
Interest expense	106	107
Total loss on common shares	130	169
Assets	27,999		27,615
MidAmerican Funding
Segment Reporting Information [Line Items]
Operating revenue	1,005	1,067
Depreciation and amortization	250	207
Operating income	100	48
Interest expense	82	78
Total loss on common shares	241	144
Assets	25,451		25,352
NV Energy
Segment Reporting Information [Line Items]
Operating revenue	693	591
Depreciation and amortization	140	136
Operating income	62	70
Interest expense	51	52
Total loss on common shares	29	34
Assets	15,430		15,239
Northern Powergrid
Segment Reporting Information [Line Items]
Operating revenue	315	300
Depreciation and amortization	80	71
Operating income	159	151
Interest expense	32	33
Total loss on common shares	111	104
Assets	9,175		9,326
BHE Pipeline Group
Segment Reporting Information [Line Items]
Operating revenue	1,035	1,093
Depreciation and amortization	131	118
Operating income	538	618
Interest expense	37	38
Total loss on common shares	322	383
Assets	20,486		20,434
BHE Transmission
Segment Reporting Information [Line Items]
Operating revenue	183	180
Depreciation and amortization	58	58
Operating income	83	81
Interest expense	38	38
Total loss on common shares	62	59
Assets	9,618		9,476
BHE Renewables
Segment Reporting Information [Line Items]
Operating revenue	167	190
Depreciation and amortization	65	60
Operating income	(2)	33
Interest expense	41	40
Total loss on common shares	104	16
Assets	12,138		11,829
HomeServices
Segment Reporting Information [Line Items]
Operating revenue	1,207	1,232
Depreciation and amortization	15	11
Operating income	28	112
Interest expense	1	1
Total loss on common shares	21	84
Assets	4,036		4,574
BHE and Other
Segment Reporting Information [Line Items]
Operating revenue	128	186
Depreciation and amortization	3	2
Operating income	52	(14)
Interest expense	144	143
Total loss on common shares	(1,165)	(1,027)
Assets	7,136		$ 8,220
U.S.
Segment Reporting Information [Line Items]
Operating revenue	5,534	5,597
Income (loss) before income tax expense (benefit) and equity income (loss)	(654)	(423)
United Kingdom
Segment Reporting Information [Line Items]
Operating revenue	315	300
Income (loss) before income tax expense (benefit) and equity income (loss)	139	132
Canada
Segment Reporting Information [Line Items]
Operating revenue	181	177
Income (loss) before income tax expense (benefit) and equity income (loss)	46	39
Other
Segment Reporting Information [Line Items]
Operating revenue	0	7
Income (loss) before income tax expense (benefit) and equity income (loss)	$ (1)	$ 6

Segment Information - BHE - Goo

Segment Information - BHE - Goodwill (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 11,650
Acquisitions	3
Foreign currency translation	(4)
Ending balance	11,649
PAC
Goodwill [Roll Forward]
Beginning balance	1,129
Acquisitions	0
Foreign currency translation	0
Ending balance	1,129
MidAmerican Funding
Goodwill [Roll Forward]
Beginning balance	2,102
Acquisitions	0
Foreign currency translation	0
Ending balance	2,102
NV Energy
Goodwill [Roll Forward]
Beginning balance	2,369
Acquisitions	0
Foreign currency translation	0
Ending balance	2,369
Northern Powergrid
Goodwill [Roll Forward]
Beginning balance	992
Acquisitions	0
Foreign currency translation	(20)
Ending balance	972
BHE Pipeline Group
Goodwill [Roll Forward]
Beginning balance	1,814
Acquisitions	0
Foreign currency translation	0
Ending balance	1,814
BHE Transmission
Goodwill [Roll Forward]
Beginning balance	1,563
Acquisitions	0
Foreign currency translation	16
Ending balance	1,579
BHE Renewables
Goodwill [Roll Forward]
Beginning balance	95
Acquisitions	0
Foreign currency translation	0
Ending balance	95
HomeServices
Goodwill [Roll Forward]
Beginning balance	1,586
Acquisitions	3
Foreign currency translation	0
Ending balance	$ 1,589

Segment Information - MEC (Deta

Segment Information - MEC (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022USD ($)operatingSegmentreportableSegment	Mar. 31, 2021USD ($)	Dec. 31, 2021USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | operatingSegment	8
Operating revenue	$ 6,030	$ 6,081
Operating income	1,236	1,333
Interest expense	(532)	(530)
Allowance for equity funds	38	26
Other, net	5	8
Income (loss) before income tax expense (benefit) and equity income (loss)	(470)	(246)
Assets	$ 131,469		$ 132,065
MEC
Segment Reporting Information [Line Items]
Number of reportable segments | reportableSegment	2
Operating revenue	$ 1,005	1,067
Operating income	100	48
Interest expense	(78)	(74)
Allowance for borrowed funds	4	2
Allowance for equity funds	15	6
Other, net	(3)	11
Income (loss) before income tax expense (benefit) and equity income (loss)	38	(7)
Assets	23,351		23,257
MEC | Regulated electric
Segment Reporting Information [Line Items]
Operating revenue	608	545
Operating income	51	9
Assets	21,613		21,385
MEC | Regulated natural gas
Segment Reporting Information [Line Items]
Operating revenue	396	512
Operating income	49	39
Assets	1,737		1,871
MEC | Other
Segment Reporting Information [Line Items]
Operating revenue	1	$ 10
Assets	$ 1		$ 1

Segment Information - LLC (Deta

Segment Information - LLC (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022USD ($)operatingSegmentreportableSegment	Mar. 31, 2021USD ($)	Dec. 31, 2021USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | operatingSegment	8
Operating revenue	$ 6,030	$ 6,081
Operating income	1,236	1,333
Interest expense	(532)	(530)
Allowance for equity funds	38	26
Other, net	5	8
Income (loss) before income tax expense (benefit) and equity income (loss)	(470)	(246)
Assets	$ 131,469		$ 132,065
MidAmerican Funding, LLC
Segment Reporting Information [Line Items]
Number of reportable segments | reportableSegment	2
Operating revenue	$ 1,005	1,067
Operating income	100	48
Interest expense	(82)	(78)
Allowance for borrowed funds	4	2
Allowance for equity funds	15	6
Other, net	(4)	10
Income (loss) before income tax expense (benefit) and equity income (loss)	33	(12)
Assets	24,626		24,531
MidAmerican Funding, LLC | Regulated electric
Segment Reporting Information [Line Items]
Operating revenue	608	545
Operating income	51	9
Assets	22,804		22,576
MidAmerican Funding, LLC | Regulated natural gas
Segment Reporting Information [Line Items]
Operating revenue	396	512
Operating income	49	39
Assets	1,816		1,950
MidAmerican Funding, LLC | Other
Segment Reporting Information [Line Items]
Operating revenue	1	$ 10
Assets	$ 6		$ 5

Segment Information - SPPC (Det

Segment Information - SPPC (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022USD ($)operatingSegmentreportableSegment	Mar. 31, 2021USD ($)	Dec. 31, 2021USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | operatingSegment	8
Operating revenue	$ 6,030	$ 6,081
Operating income	1,236	1,333
Interest expense	(532)	(530)
Allowance for equity funds	38	26
Interest and dividend income	23	21
Other, net	5	8
Income (loss) before income tax expense (benefit) and equity income (loss)	(470)	(246)
Assets	$ 131,469		$ 132,065
SPPC
Segment Reporting Information [Line Items]
Number of reportable segments | reportableSegment	2
Operating revenue	$ 279	220
Operating income	38	39
Interest expense	(13)	(14)
Capitalized interest	1	0
Allowance for equity funds	2	1
Interest and dividend income	3	2
Other, net	2	4
Income (loss) before income tax expense (benefit) and equity income (loss)	33	32
Assets	4,279		4,223
SPPC | Regulated electric
Segment Reporting Information [Line Items]
Regulated electric	227	181
Operating revenue	227	181
Operating income	30	31
Assets	3,869		3,829
SPPC | Regulated natural gas
Segment Reporting Information [Line Items]
Regulated natural gas	52	39
Operating revenue	52	39
Operating income	8	$ 8
Assets	375		365
SPPC | Other
Segment Reporting Information [Line Items]
Assets	$ 35		$ 29