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Litigation settlement, scheduled payments term.

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Loss contingency accrual interest rate.

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Loss contingency number of additional complaints filed.

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Loss contingency, number of cases.

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Loss contingency, number of complaints.

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Loss contingency, number of plaintiffs dismissed.

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Loss contingency number of plaintiffs per trial.

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Loss contingency, number of trials.

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Multiplier used to determine economic and Non-economic damages.

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Amount charged, net of amounts receivable, against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

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Number of acres burned.

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Number of additional damages phase trials.

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Number of fatalities in wildfire.

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Number of injuries in wildfire.

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Number of structures damaged.

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Number of structures destroyed.

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Number of wildfires associated to complaints.

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The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses.

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Amount awarded to other party in judgment or settlement of litigation.

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Amount of loss contingency liability.

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Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

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Amount of damages awarded to the plaintiff in the legal matter.

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The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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Number of plaintiffs that have filed claims pertaining to a loss contingency.

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Amount of receivable related to a loss contingency accrual. For example, an insurance recovery receivable.

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Amount of cash inflow from the collection of receivables related to a loss contingency.

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The amount of cash paid for the settlement of litigation or for other legal issues during the period.

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Amount of purchase arrangement to be paid after fifth fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of purchase arrangement to be paid in fifth fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of purchase arrangement to be paid in fourth fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of purchase arrangement to be paid in next fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of purchase arrangement to be paid in second fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Contingencies and commitments - Narrative (Detail) $ in Millions					1 Months Ended												3 Months Ended	10 Months Ended	12 Months Ended			51 Months Ended
	Feb. 13, 2024 Plaintiff	Feb. 01, 2024 USD ($)	Oct. 31, 2023 USD ($) Cases	Jul. 29, 2022 a People Structure	Feb. 24, 2025 USD ($) Plaintiff	Dec. 31, 2024 USD ($) Plaintiff Complaint	Oct. 31, 2024 Plaintiff Trial	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Apr. 30, 2024 USD ($)	Mar. 31, 2024 USD ($) Plaintiff	Jan. 31, 2024 USD ($) Plaintiff	Sep. 30, 2023 Trial	Jun. 30, 2023 USD ($) Wildfire Plaintiff	Apr. 30, 2023 Plaintiff	Sep. 30, 2020 a Structure	Dec. 31, 2024 USD ($)	Jan. 31, 2025 Plaintiff Complaint	Dec. 31, 2024 USD ($) Cases	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2024 USD ($)
Commitments and Contingencies [Line Items]
Purchase commitments - 2025						$ 12,000											$ 12,000		$ 12,000			$ 12,000
Purchase commitments - 2026						6,000											6,000		6,000			6,000
Purchase commitments - 2027						5,000											5,000		5,000			5,000
Purchase commitments - 2028						4,000											4,000		4,000			4,000
Purchase commitments - 2029						3,000											3,000		3,000			3,000
Purchase commitments - thereafter						28,000											28,000		28,000			28,000
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| Wildfires [Member]
Commitments and Contingencies [Line Items]
Estimated pre-tax probable loss						2,750											2,750		2,750			2,750
Loss contingency accrual																			346	$ 1,900	$ 225
Insurance recoveries																			530	$ 253	$ 161
Legal settlements amount paid																			533			1,200
Unpaid estimated liability						$ 1,540											1,540		1,540			$ 1,540
Loss contingency, sought amount																			3,000
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| 2022 Wildfire [Member]
Commitments and Contingencies [Line Items]
Number of structures destroyed \| Structure				185
Number of structures damaged \| Structure				11
Number of injuries in wildfire \| People				12
Number of fatalities in wildfire \| People				4
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court [Member] \| 2020 Wildfires [Member]
Commitments and Contingencies [Line Items]
Loss contingency, number of trials \| Trial													3
Number of named plaintiffs \| Plaintiff	17													17	17
Loss contingency, accrual interest rate												9.00%
Loss contingency, sought amount																			48,000
Loss contingency, awarded value												$ 92		$ 90
Number of additional damages phase trials \| Trial							9
Number of additional complaints filed \| Complaint						2
Multiplier used to determine economic and non-economic damages														0.25
Number of wildfires associated to complaints \| Wildfire														4
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court [Member] \| 2020 Wildfires [Member] \| Subsequent Event [Member]
Commitments and Contingencies [Line Items]
Number of named plaintiffs \| Plaintiff																		1,591
Number of plaintiffs dismissed \| Plaintiff																		5
Number of complaints \| Complaint																		6
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court [Member] \| Economic Damages [Member]
Commitments and Contingencies [Line Items]
Loss contingency, awarded value														$ 4
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court [Member] \| Non-Economic Damages [Member]
Commitments and Contingencies [Line Items]
Loss contingency, awarded value														68
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court [Member] \| Punitive Damages [Member]
Commitments and Contingencies [Line Items]
Loss contingency, awarded value														$ 18
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court [Member] \| Commercial Timber Plaintiffs [Member] \| Settled Litigation [Member]
Commitments and Contingencies [Line Items]
Number of named plaintiffs \| Plaintiff											5
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court First Trial [Member] \| 2020 Wildfires [Member]
Commitments and Contingencies [Line Items]
Number of named plaintiffs \| Plaintiff												9
Loss contingency, awarded value		$ 84								$ 80		$ 62
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court First Trial [Member] \| Economic Damages [Member]
Commitments and Contingencies [Line Items]
Loss contingency, awarded value		6										6
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court First Trial [Member] \| Non-Economic Damages [Member]
Commitments and Contingencies [Line Items]
Loss contingency, awarded value												$ 56
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court First Trial [Member] \| Punitive Damages [Member]
Commitments and Contingencies [Line Items]
Loss contingency, awarded value		$ 16
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court Second Trial [Member] \| 2020 Wildfires [Member]
Commitments and Contingencies [Line Items]
Number of named plaintiffs \| Plaintiff											10
Loss contingency, awarded value									$ 38		$ 42
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court Second Trial [Member] \| Economic Damages [Member]
Commitments and Contingencies [Line Items]
Loss contingency, awarded value											12
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court Second Trial [Member] \| Noneconomic and Punitive Damages [Member]
Commitments and Contingencies [Line Items]
Loss contingency, awarded value											$ 30
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court Third Trial [Member] \| 2020 Wildfires [Member] \| Subsequent Event [Member]
Commitments and Contingencies [Line Items]
Loss contingency, sought amount					$ 49
Multiplier used to determine economic and non-economic damages					0.25
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court Third Trial [Member] \| Economic Damages [Member]
Commitments and Contingencies [Line Items]
Number of named plaintiffs \| Plaintiff						8
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court Third Trial [Member] \| Economic Damages [Member] \| Subsequent Event [Member]
Commitments and Contingencies [Line Items]
Number of named plaintiffs \| Plaintiff					8
Loss contingency, sought amount					$ 8
Loss contingency, awarded value					$ 4
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court Third Trial [Member] \| Non-Economic Damages [Member] \| Subsequent Event [Member]
Commitments and Contingencies [Line Items]
Number of named plaintiffs \| Plaintiff					7
Loss contingency, awarded value					$ 32
Berkshire Hathaway Energy [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court Third Trial [Member] \| Punitive Damages [Member] \| Subsequent Event [Member]
Commitments and Contingencies [Line Items]
Loss contingency, sought amount					$ 9
Berkshire Hathaway Energy [Member] \| HomeServices of America [Member] \| Antitrust Cases [Member]
Commitments and Contingencies [Line Items]
Loss contingency, sought amount																			$ 9,000
Number of cases \| Cases																			2
Berkshire Hathaway Energy [Member] \| HomeServices of America [Member] \| Antitrust Burnett Case [Member]
Commitments and Contingencies [Line Items]
Loss contingency, awarded value			$ 1,800
Number of cases \| Cases			1
Litigation settlement, scheduled payments term										4 years
Settlement payments to be paid										$ 250
Berkshire Hathaway Energy [Member] \| Minimum [Member] \| PacifiCorp [Member] \| Wildfires [Member]
Commitments and Contingencies [Line Items]
Loss contingency, sought amount																			$ 900
Berkshire Hathaway Energy [Member] \| Minimum [Member] \| PacifiCorp [Member] \| 2020 Wildfires [Member]
Commitments and Contingencies [Line Items]
Number of acres aggregate of wildfire \| a																500,000
Number of structures destroyed \| Structure																2,000
Berkshire Hathaway Energy [Member] \| Minimum [Member] \| PacifiCorp [Member] \| 2022 Wildfire [Member]
Commitments and Contingencies [Line Items]
Number of acres aggregate of wildfire \| a				60,000
Berkshire Hathaway Energy [Member] \| Maximum [Member] \| PacifiCorp [Member] \| James Case Multnomah County Circuit Court [Member] \| 2020 Wildfires [Member]
Commitments and Contingencies [Line Items]
Number of plaintiffs per trial \| Plaintiff							10
NICO [Member]
Commitments and Contingencies [Line Items]
Loss contingency accrual								$ 535
Net loss contingency accrual								490
Loss contingency recoverable from a third party								$ 45
Loss contingency recoverable from a third party, received																	$ 45