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Consolidated Statements of Operations - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Operating revenue:      
Total operating revenue $ 19,844 $ 19,787 $ 18,614
Energy:      
Cost of fuel and energy 4,586 4,769 4,518
Operations and maintenance 3,318 3,440 3,210
Depreciation and amortization 2,965 2,933 2,580
Total operating expenses 15,694 15,715 14,092
Taxes, Miscellaneous 574 573 555
Real estate 4,251 4,000 3,229
Operating income 4,150 4,072 4,522
Other income (expense):      
Interest expense (1,912) (1,838) (1,841)
Capitalized interest and allowance for borrowed funds 77 61 45
Allowance for equity funds 173 104 76
Other Interest and Dividend Income 117 113 111
Gain (Loss) on Investments (288) (538) 14
Other, net 97 (9) (420)
Total other income (expense) (1,736) (2,107) (2,015)
Income before income tax benefit and equity (loss) income 2,414 1,965 2,507
Income tax benefit (598) (583) (554)
Equity income (loss) (44) 43 (151)
Net income 2,968 2,591 2,910
Net income attributable to noncontrolling interests 18 23 40
Net income (loss) attributable to parent 2,950 2,568 2,870
Electricity and natural gas [Member]      
Operating revenue:      
Total operating revenue 15,371 15,573 15,171
Residential real estate brokerage and mortgage businesses [Member]      
Operating revenue:      
Total operating revenue 4,473 4,214 3,443
PacifiCorp [Member]      
Operating revenue:      
Total operating revenue 5,068 5,026 5,237
Energy:      
Cost of fuel and energy 1,795 1,757 1,770
Operations and maintenance 1,048 1,038 1,034
Utilities Operating Expense, Depreciation and Amortization 954 979 796
Property and other taxes 199 201 197
Total operating costs and expenses 3,996 3,975 3,797
Operating income 1,072 1,051 1,440
Other income (expense):      
Interest expense (401) (384) (381)
Capitalized interest and allowance for borrowed funds 36 18 11
Allowance for equity funds 72 35 20
Investment Income, Interest and Dividend 21 15 11
Other, net 32 8 27
Total other income (expense) (240) (308) (312)
Income before income tax benefit and equity (loss) income 832 743 1,128
Income tax benefit 61 5 360
Net income (loss) attributable to parent 771 738 768
MidAmerican Energy Company [Member]      
Operating revenue:      
Total operating revenue 2,925 3,049 2,837
Energy:      
Operations and maintenance 800 811 799
Utilities Operating Expense, Depreciation and Amortization 639 609 500
Property and other taxes 126 125 119
Total operating expenses 2,377 2,498 2,294
Operating income 548 551 543
Other income (expense):      
Interest expense (281) (227) (214)
Capitalized interest and allowance for borrowed funds 27 20 15
Allowance for equity funds 78 53 41
Other, net 50 30 37
Total other income (expense) (126) (124) (121)
Income before income tax benefit and equity (loss) income 422 427 422
Income tax benefit (371) (255) (183)
Net income (loss) attributable to parent 793 682 605
MidAmerican Energy Company [Member] | Electricity, US Regulated [Member]      
Operating revenue:      
Total operating revenue 2,237 2,283 2,108
Energy:      
Cost of fuel and energy 399 487 434
MidAmerican Energy Company [Member] | Regulated natural gas and other [Member]      
Operating revenue:      
Total operating revenue 688 766 729
Energy:      
Cost of fuel and energy 413 466 442
MidAmerican Funding, LLC and Subsidiaries [Domain]      
Operating revenue:      
Total operating revenue 2,927 3,053 2,846
Energy:      
Operations and maintenance 801 813 802
Utilities Operating Expense, Depreciation and Amortization 639 609 500
Property and other taxes 127 125 119
Total operating expenses 2,378 2,503 2,302
Operating income 549 550 544
Other income (expense):      
Interest expense (302) (247) (237)
Capitalized interest and allowance for borrowed funds 27 20 15
Allowance for equity funds 78 53 41
Other, net 52 31 9
Total other income (expense) (145) (143) (172)
Income before income tax benefit and equity (loss) income 404 407 372
Income tax benefit (377) (262) (202)
Net income (loss) attributable to parent 781 669 574
MidAmerican Funding, LLC and Subsidiaries [Domain] | Electricity, US Regulated [Member]      
Operating revenue:      
Total operating revenue 2,237 2,283 2,108
Energy:      
Cost of fuel and energy 399 487 434
MidAmerican Funding, LLC and Subsidiaries [Domain] | Regulated natural gas and other [Member]      
Operating revenue:      
Total operating revenue 690 770 738
Energy:      
Cost of fuel and energy 412 469 447
Nevada Power Company [Member]      
Operating revenue:      
Total operating revenue 2,148 2,184 2,206
Energy:      
Cost of fuel and energy 943 917 902
Operations and maintenance 324 443 391
Utilities Operating Expense, Depreciation and Amortization 357 337 308
Property and other taxes 45 41 40
Total operating expenses 1,669 1,738 1,641
Operating income 479 446 565
Other income (expense):      
Interest expense (171) (170) (179)
Capitalized interest and allowance for borrowed funds 3 2 1
Allowance for equity funds 5 3 1
Other, net 21 17 23
Total other income (expense) (142) (148) (154)
Income before income tax benefit and equity (loss) income 337 298 411
Income tax benefit 73 72 156
Net income (loss) attributable to parent 264 226 255
Sierra Pacific Power Company [Member]      
Operating revenue:      
Total operating revenue 889 855 812
Energy:      
Operations and maintenance 172 190 167
Utilities Operating Expense, Depreciation and Amortization 125 119 114
Property and other taxes 22 23 24
Total operating expenses 718 703 615
Operating income 171 152 197
Other income (expense):      
Interest expense (48) (44) (43)
Capitalized interest and allowance for borrowed funds 1 1 2
Allowance for equity funds 3 4 3
Other, net 4 9 5
Total other income (expense) (40) (30) (33)
Income before income tax benefit and equity (loss) income 131 122 164
Income tax benefit 28 30 55
Net income (loss) attributable to parent 103 92 109
Sierra Pacific Power Company [Member] | Electricity, US Regulated [Member]      
Operating revenue:      
Total operating revenue 770 752 713
Energy:      
Cost of fuel and energy 337 322 268
Sierra Pacific Power Company [Member] | Natural Gas, US Regulated [Member]      
Operating revenue:      
Total operating revenue 119 103 99
Energy:      
Cost of fuel and energy $ 62 $ 49 $ 42