Components of Accumulated Other Comprehensive Loss, Net - BHE (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 49,740	$ 50,639
Other comprehensive income (loss)	(127)	40
Ending balance	50,259	51,651
Accumulated Other Comprehensive (Loss) Income, Net
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,904)	(2,149)
Other comprehensive income (loss)	(127)	40
Ending balance	(2,031)	(2,109)
Unrecognized Amounts on Retirement Benefits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(426)	(390)
Other comprehensive income (loss)	11	(4)
Ending balance	(415)	(394)
Foreign Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,550)	(1,896)
Other comprehensive income (loss)	(145)	99
Ending balance	(1,695)	(1,797)
Unrealized Losses on Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	71	135
Other comprehensive income (loss)	7	(55)
Ending balance	78	80
Noncontrolling Interest
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	1	2
Other comprehensive income (loss)	0	0
Ending balance	$ 1	$ 2