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Revenue from Contracts with Customers Revenue from Contracts with Customers (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax $ 3,429 $ 3,564 $ 7,116 $ 7,088
Operating revenue 4,894 4,993 9,504 9,433
Non-contracts with customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Operating revenue 138 156 276 311
Electricity and natural gas [Member]        
Disaggregation of Revenue [Line Items]        
Operating revenue 3,567 3,720 7,392 7,399
PacifiCorp [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 1,143 1,154 2,382 2,294
Operating revenue 1,167 1,193 2,426 2,377
PacifiCorp [Member] | Non-contracts with customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Operating revenue 24 39 44 83
MidAmerican Funding [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 653 710 1,488 1,451
Operating revenue 660 718 1,502 1,465
MidAmerican Funding [Member] | Non-contracts with customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Operating revenue 7 8 14 14
NV Energy, Inc. [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 713 743 1,320 1,353
Operating revenue 721 750 1,335 1,367
NV Energy, Inc. [Member] | Non-contracts with customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Operating revenue 8 7 15 14
Northern Powergrid Holdings [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 219 226 457 486
Operating revenue 243 246 506 524
Northern Powergrid Holdings [Member] | Non-contracts with customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Operating revenue 24 20 49 38
BHE Pipeline Group [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 212 236 584 610
Operating revenue 212 236 583 612
BHE Pipeline Group [Member] | Non-contracts with customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Operating revenue 0 [1] 0 [1] (1) [1] 2
BHE Transmission [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 175 177 343 357
Operating revenue 175 177 343 357
BHE Transmission [Member] | Non-contracts with customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Operating revenue 0 0 0 0
BHE Renewables [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 197 186 323 303
Operating revenue 249 246 416 400
BHE Renewables [Member] | Non-contracts with customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Operating revenue 52 60 93 97
Berkshire Hathaway Energy And Other [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 117 [2] 132 [2] 219 [2] 234
Operating revenue 140 [2] 154 [2] 281 [2] 297
Berkshire Hathaway Energy And Other [Member] | Non-contracts with customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Operating revenue 23 [2] 22 [2] 62 [2] 63
Regulated Operation [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 3,063 3,201 6,470 6,453
Regulated Operation [Member] | Regulated retail electric [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 2,232 2,311 4,388 4,332
Regulated Operation [Member] | Regulated retail gas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 116 118 413 404
Regulated Operation [Member] | Regulated wholesale [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 86 101 242 226
Regulated Operation [Member] | Regulated transmission and distribution [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 441 459 903 946
Regulated Operation [Member] | Regulated interstate pipeline [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 188 211 523 544
Regulated Operation [Member] | Other customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 1 1 1
Regulated Operation [Member] | PacifiCorp [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 1,143 1,154 2,382 2,294
Regulated Operation [Member] | PacifiCorp [Member] | Regulated retail electric [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 1,107 1,115 2,293 2,211
Regulated Operation [Member] | PacifiCorp [Member] | Regulated retail gas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | PacifiCorp [Member] | Regulated wholesale [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 11 [3] 9 [3] 39 [3] 31
Regulated Operation [Member] | PacifiCorp [Member] | Regulated transmission and distribution [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 25 30 50 52
Regulated Operation [Member] | PacifiCorp [Member] | Regulated interstate pipeline [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | PacifiCorp [Member] | Other customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | MidAmerican Funding [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 643 705 1,472 1,446
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated retail electric [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 467 505 910 891
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated retail gas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 95 99 355 345
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated wholesale [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 66 87 176 180
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated transmission and distribution [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 15 14 31 30
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated interstate pipeline [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | MidAmerican Funding [Member] | Other customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | NV Energy, Inc. [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 713 742 1,320 1,352
Regulated Operation [Member] | NV Energy, Inc. [Member] | Regulated retail electric [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 658 691 1,185 1,230
Regulated Operation [Member] | NV Energy, Inc. [Member] | Regulated retail gas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 21 19 58 59
Regulated Operation [Member] | NV Energy, Inc. [Member] | Regulated wholesale [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 10 6 28 17
Regulated Operation [Member] | NV Energy, Inc. [Member] | Regulated transmission and distribution [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 24 25 48 45
Regulated Operation [Member] | NV Energy, Inc. [Member] | Regulated interstate pipeline [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | NV Energy, Inc. [Member] | Other customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 1 1 1
Regulated Operation [Member] | Northern Powergrid Holdings [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 209 216 439 465
Regulated Operation [Member] | Northern Powergrid Holdings [Member] | Regulated retail electric [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | Northern Powergrid Holdings [Member] | Regulated retail gas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | Northern Powergrid Holdings [Member] | Regulated wholesale [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | Northern Powergrid Holdings [Member] | Regulated transmission and distribution [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 209 216 439 465
Regulated Operation [Member] | Northern Powergrid Holdings [Member] | Regulated interstate pipeline [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | Northern Powergrid Holdings [Member] | Other customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | BHE Pipeline Group [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 212 236 584 610
Regulated Operation [Member] | BHE Pipeline Group [Member] | Regulated retail electric [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | BHE Pipeline Group [Member] | Regulated retail gas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | BHE Pipeline Group [Member] | Regulated wholesale [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | BHE Pipeline Group [Member] | Regulated transmission and distribution [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | BHE Pipeline Group [Member] | Regulated interstate pipeline [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 212 236 584 610
Regulated Operation [Member] | BHE Pipeline Group [Member] | Other customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | BHE Transmission [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 168 174 335 354
Regulated Operation [Member] | BHE Transmission [Member] | Regulated retail electric [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | BHE Transmission [Member] | Regulated retail gas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | BHE Transmission [Member] | Regulated wholesale [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | BHE Transmission [Member] | Regulated transmission and distribution [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 168 174 335 354
Regulated Operation [Member] | BHE Transmission [Member] | Regulated interstate pipeline [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | BHE Transmission [Member] | Other customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | BHE Renewables [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | BHE Renewables [Member] | Regulated retail electric [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | BHE Renewables [Member] | Regulated retail gas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | BHE Renewables [Member] | Regulated wholesale [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | BHE Renewables [Member] | Regulated transmission and distribution [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | BHE Renewables [Member] | Regulated interstate pipeline [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | BHE Renewables [Member] | Other customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax (25) [2] (26) [2] (62) [2] (68)
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Regulated retail electric [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 [2] 0 [2] 0 [2] 0
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Regulated retail gas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 [2] 0 [2] 0 [2] 0
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Regulated wholesale [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax (1) [2] (1) [2] (1) [2] (2)
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Regulated transmission and distribution [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 [2] 0 [2] 0 [2] 0
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Regulated interstate pipeline [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax (24) [2] (25) [2] (61) [2] (66)
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Other customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 [2] 0 [2] 0 [2] 0
Unregulated Operation [Member] | Nonregulated products and services [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 366 363 646 635
Unregulated Operation [Member] | PacifiCorp [Member] | Nonregulated products and services [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Unregulated Operation [Member] | MidAmerican Funding [Member] | Nonregulated products and services [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 10 5 16 5
Unregulated Operation [Member] | NV Energy, Inc. [Member] | Nonregulated products and services [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 1 0 1
Unregulated Operation [Member] | Northern Powergrid Holdings [Member] | Nonregulated products and services [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 10 10 18 21
Unregulated Operation [Member] | BHE Pipeline Group [Member] | Nonregulated products and services [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Unregulated Operation [Member] | BHE Transmission [Member] | Nonregulated products and services [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 7 3 8 3
Unregulated Operation [Member] | BHE Renewables [Member] | Nonregulated products and services [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 197 186 323 303
Unregulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Nonregulated products and services [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 142 [2] 158 [2] 281 [2] 302
PacifiCorp [Member]        
Disaggregation of Revenue [Line Items]        
Operating revenue 1,167 1,193 2,426 2,377
PacifiCorp [Member] | Non-contracts with customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Operating revenue 24 39 44 83
PacifiCorp [Member] | Regulated Operation [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 1,143 1,154 2,382 2,294
PacifiCorp [Member] | Regulated Operation [Member] | Regulated retail electric [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 1,085 1,095 2,255 2,172
PacifiCorp [Member] | Regulated Operation [Member] | Regulated wholesale [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 11 9 39 31
PacifiCorp [Member] | Regulated Operation [Member] | Regulated transmission and distribution [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 25 30 50 52
PacifiCorp [Member] | Regulated Operation [Member] | Other customer revenue [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax $ 22 $ 20 $ 38 $ 39
[1] ncludes net payments to counterparties for the financial settlement of certain derivative contracts at BHE Pipeline Group.
[2] (1)The BHE and Other reportable segment represents amounts related principally to other entities, corporate functions and intersegment eliminations.
[3] (2)I