Subsidiary Debt - Maturity Schedule (Details) $ in Millions	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	$ 2,539
Long-term Debt, Maturities, Repayments of Principal in Year Two	1,308
Long-term Debt, Maturities, Repayments of Principal in Year Three	1,792
Long-term Debt, Maturities, Repayments of Principal in Year Four	2,508
Long-term Debt, Maturities, Repayments of Principal in Year Five	1,615
Long-term Debt, Maturities, Repayments of Principal after Year Five	29,872
Par Value	39,634
Subsidiary Debt [Member]
Debt Instrument [Line Items]
Par Value	30,883
PacifiCorp [Member] | Subsidiary Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	38
Long-term Debt, Maturities, Repayments of Principal in Year Two	420
Long-term Debt, Maturities, Repayments of Principal in Year Three	605
Long-term Debt, Maturities, Repayments of Principal in Year Four	449
Long-term Debt, Maturities, Repayments of Principal in Year Five	591
Long-term Debt, Maturities, Repayments of Principal after Year Five	5,602
Par Value	7,705
MidAmerican Funding [Member] | Subsidiary Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	0
Long-term Debt, Maturities, Repayments of Principal in Year Two	0
Long-term Debt, Maturities, Repayments of Principal in Year Three	0
Long-term Debt, Maturities, Repayments of Principal in Year Four	315
Long-term Debt, Maturities, Repayments of Principal in Year Five	535
Long-term Debt, Maturities, Repayments of Principal after Year Five	6,665
Par Value	7,515
NV Energy [Member]
Debt Instrument [Line Items]
Par Value	3,836
NV Energy [Member] | Subsidiary Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	890
Long-term Debt, Maturities, Repayments of Principal in Year Two	0
Long-term Debt, Maturities, Repayments of Principal in Year Three	0
Long-term Debt, Maturities, Repayments of Principal in Year Four	250
Long-term Debt, Maturities, Repayments of Principal in Year Five	0
Long-term Debt, Maturities, Repayments of Principal after Year Five	2,696
Par Value	3,836
Northern Powergrid Holdings [Member]
Debt Instrument [Line Items]
Par Value	3,234	[1]
Northern Powergrid Holdings [Member] | Subsidiary Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	480
Long-term Debt, Maturities, Repayments of Principal in Year Two	32
Long-term Debt, Maturities, Repayments of Principal in Year Three	498
Long-term Debt, Maturities, Repayments of Principal in Year Four	34
Long-term Debt, Maturities, Repayments of Principal in Year Five	35
Long-term Debt, Maturities, Repayments of Principal after Year Five	2,155
Par Value	3,234
BHE Pipeline Group [Member] | Subsidiary Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	0
Long-term Debt, Maturities, Repayments of Principal in Year Two	200
Long-term Debt, Maturities, Repayments of Principal in Year Three	0
Long-term Debt, Maturities, Repayments of Principal in Year Four	0
Long-term Debt, Maturities, Repayments of Principal in Year Five	0
Long-term Debt, Maturities, Repayments of Principal after Year Five	1,050
Par Value	1,250
BHE Transmission [Member] | Subsidiary Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	251
Long-term Debt, Maturities, Repayments of Principal in Year Two	1
Long-term Debt, Maturities, Repayments of Principal in Year Three	366
Long-term Debt, Maturities, Repayments of Principal in Year Four	386
Long-term Debt, Maturities, Repayments of Principal in Year Five	270
Long-term Debt, Maturities, Repayments of Principal after Year Five	2,617
Par Value	3,891	[2]
BHE Renewables [Member] | Subsidiary Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	503
Long-term Debt, Maturities, Repayments of Principal in Year Two	172
Long-term Debt, Maturities, Repayments of Principal in Year Three	170
Long-term Debt, Maturities, Repayments of Principal in Year Four	174
Long-term Debt, Maturities, Repayments of Principal in Year Five	184
Long-term Debt, Maturities, Repayments of Principal after Year Five	2,036
Par Value	3,239
HomeServices [Member] | Subsidiary Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	27
Long-term Debt, Maturities, Repayments of Principal in Year Two	33
Long-term Debt, Maturities, Repayments of Principal in Year Three	153
Long-term Debt, Maturities, Repayments of Principal in Year Four	0
Long-term Debt, Maturities, Repayments of Principal in Year Five	0
Long-term Debt, Maturities, Repayments of Principal after Year Five	0
Par Value	213
Berkshire Hathaway Energy [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	350
Long-term Debt, Maturities, Repayments of Principal in Year Two	450
Long-term Debt, Maturities, Repayments of Principal in Year Three	0
Long-term Debt, Maturities, Repayments of Principal in Year Four	900
Long-term Debt, Maturities, Repayments of Principal in Year Five	0
Long-term Debt, Maturities, Repayments of Principal after Year Five	6,951
Par Value	8,651
Berkshire Hathaway Energy [Member] | Junior Subordinated Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	0
Long-term Debt, Maturities, Repayments of Principal in Year Two	0
Long-term Debt, Maturities, Repayments of Principal in Year Three	0
Long-term Debt, Maturities, Repayments of Principal in Year Four	0
Long-term Debt, Maturities, Repayments of Principal in Year Five	0
Long-term Debt, Maturities, Repayments of Principal after Year Five	100
Par Value	$ 100

[1] (1)The par values for these debt instruments are denominated in sterling.

[2] ns): Par Value(1) 2019 2018AltaLink Investments, L.P.: Series 12-1 Senior Bonds, 3.674%, due 2019$— $— $148Series 13-1 Senior Bonds, 3.265%, due 2020154 154 148Series 15-1 Senior Bonds, 2.244%, due 2022154 154 146Total AltaLink Investments, L.P.308 308 442 AltaLink, L.P.: Series 2013-2 Notes, 3.621%, due 202096 96 92Series 2012-2 Notes, 2.978%, due 2022212 212 201Series 2013-4 Notes, 3.668%, due 2023385 384 366Series 2014-1 Notes, 3.399%, due 2024269 269 256Series 2016-1 Notes, 2.747%, due 2026269 269 255Series 2006-1 Notes, 5.249%, due 2036115 115 109Series 2010-1 Notes, 5.381%, due 204096 96 91Series 2010-2 Notes, 4.872%, due 2040115 115 109Series 2011-1 Notes, 4.462%, due 2041212 211 201Series 2012-1 Notes, 3.990%, due 2042404 398 380Series 2013-3 Notes, 4.922%, due 2043269 268 256Series 2014-3 Notes, 4.054%, due 2044227 226 215Series 2015-1 Notes, 4.090%, due 2045269 268 255Series 2016-2 Notes, 3.717%, due 2046346 345 328Series 2013-1 Notes, 4.446%, due 2053192 192 183Series 2014-2 Notes, 4.274%, due 2064100 100 95Total AltaLink, L.P.3,576 3,564 3,392 Other: Construction Loan, 5.620%, due 20207 7 8 Total BHE Transmission$3,891 $3,879 $3,842(1)The par values for these debt instruments are denominated in Canadian dollars.