Subsidiary Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Par value	$ 49,746
Subsidiary debt, noncurrent	35,394	$ 34,930
NPC
Debt Instrument [Line Items]
Par value	2,534
Subsidiary debt	2,510	2,507
Subsidiary debt
Debt Instrument [Line Items]
Par value	36,545
Subsidiary debt	36,659	36,319
Subsidiary debt, current	1,265	1,389
Subsidiary debt, noncurrent	35,394	34,930
Subsidiary debt \| PAC
Debt Instrument [Line Items]
Par value	8,797
Subsidiary debt	8,730	8,612
Subsidiary debt \| MidAmerican Funding LLC
Debt Instrument [Line Items]
Par value	8,047
Subsidiary debt	7,946	7,431
Subsidiary debt \| MidAmerican Funding
Debt Instrument [Line Items]
Par value	8,047
Subsidiary debt \| MidAmerican Energy
Debt Instrument [Line Items]
Par value	7,808
Subsidiary debt	7,721	7,210
Subsidiary debt \| NV Energy
Debt Instrument [Line Items]
Par value	3,701
Subsidiary debt	3,675	3,673
Subsidiary debt \| SPPC
Debt Instrument [Line Items]
Par value	1,167
Subsidiary debt	1,165	1,166
Subsidiary debt \| Northern Powergrid
Debt Instrument [Line Items]
Par value	3,321
Subsidiary debt	3,287	3,259
Subsidiary debt \| BHE Pipeline Group
Debt Instrument [Line Items]
Par value	5,534
Subsidiary debt	5,924	6,165
Subsidiary debt \| BHE Transmission
Debt Instrument [Line Items]
Par value	3,924
Subsidiary debt	3,906	3,877
Subsidiary debt \| BHE Renewables
Debt Instrument [Line Items]
Par value	3,073
Subsidiary debt	3,043	3,116
Subsidiary debt \| HomeServices
Debt Instrument [Line Items]
Par value	148
Subsidiary debt	$ 148	$ 186

Face (par) amount of debt instrument at time of issuance.

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