Commitments and Contingencies - BHE - Narrative (Details) naturalGasProducer in Thousands, a in Thousands, $ in Millions	1 Months Ended	3 Months Ended
	Sep. 30, 2020 USD ($) a naturalGasProducer	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Apr. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
PAC | Lower Klamath Hydroelectric System
Long-Term Purchase Commitment [Line Items]
Hydroelectric dam removal cost, total funding		$ 450
Dam removal cost collected		200
Additional dam removal costs, California bond measure		250
Hydroelectric dam removal cost, additional contingency funding		45
PAC | 2020 Wildfires
Long-Term Purchase Commitment [Line Items]
Number of acres burned | a	500
Number of structures destroyed | naturalGasProducer	2
Fire suppression costs	$ 150
Estimate of possible loss		877
Expected insurance recoveries		287			$ 246
Loss in period		359	$ 0
PAC | 2022 McKinney Fire
Long-Term Purchase Commitment [Line Items]
Estimate of possible loss		31
Expected insurance recoveries		103
Construction commitment | PAC | Subsequent event
Long-Term Purchase Commitment [Line Items]
Purchase obligation				$ 1,200
Construction commitment | MEC
Long-Term Purchase Commitment [Line Items]
Purchase obligation		183
Fuel contracts | PAC
Long-Term Purchase Commitment [Line Items]
Purchase obligation		$ 247