Segment Information - Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Goodwill [Roll Forward]
Beginning balance	$ 11,506	$ 9,722
Acquisitions	140	1,731
Foreign currency translation	4	53
Ending balance	11,650	11,506
PAC | Operating segments
Goodwill [Roll Forward]
Beginning balance	1,129	1,129
Acquisitions	0	0
Foreign currency translation	0	0
Ending balance	1,129	1,129
MidAmerican Funding | Operating segments
Goodwill [Roll Forward]
Beginning balance	2,102	2,102
Acquisitions	0	0
Foreign currency translation	0	0
Ending balance	2,102	2,102
NV Energy | Operating segments
Goodwill [Roll Forward]
Beginning balance	2,369	2,369
Acquisitions	0	0
Foreign currency translation	0	0
Ending balance	2,369	2,369
Northern Powergrid | Operating segments
Goodwill [Roll Forward]
Beginning balance	1,000	978
Acquisitions	0	0
Foreign currency translation	(8)	22
Ending balance	992	1,000
BHE Pipeline Group | Operating segments
Goodwill [Roll Forward]
Beginning balance	1,803	73
Acquisitions	11	1,730
Foreign currency translation	0	0
Ending balance	1,814	1,803
BHE Transmission | Operating segments
Goodwill [Roll Forward]
Beginning balance	1,551	1,520
Acquisitions	0	0
Foreign currency translation	12	31
Ending balance	1,563	1,551
BHE Renewables | Operating segments
Goodwill [Roll Forward]
Beginning balance	95	95
Acquisitions	0	0
Foreign currency translation	0	0
Ending balance	95	95
HomeServices | Operating segments
Goodwill [Roll Forward]
Beginning balance	1,457	1,456
Acquisitions	129	1
Foreign currency translation	0	0
Ending balance	$ 1,586	$ 1,457