Recent Financing Transactions - BHE (Details) $ in Millions, $ in Millions	1 Months Ended
	Jun. 30, 2023 USD ($)	Apr. 30, 2023 CAD ($)	May 31, 2023 USD ($)
Unsecured credit facility, expiring June 2026 | BHE | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 3,500
Unsecured credit facility, expiring June 2026 | PAC | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	2,000		$ 1,200
Unsecured credit facility, expiring January 2024 | PAC | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 800
Debt term	364 days
Unsecured credit facility, expiring June 2026 | MEC | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 1,500
Secured credit facility, expiring June 2026 | NPC | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	600		400
Secured credit facility, expiring June 2026 | SPPC | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 400		250
Revolving credit facility, expiring April 2024 | AltaLink Investments, L.P. | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 200
Debt term		1 year
Extension period		1 year
Subsidiary Debt | First Mortgage Bonds, 5.50%, due May 2054 | PAC
Debt Instrument [Line Items]
Face amount			$ 1,200
Stated interest rate			5.50%