Asset Retirement Obligations	6 Months Ended
	Jun. 30, 2023
Asset Retirement Obligations Disclosure [Line Items]
Asset Retirement Obligations	Asset Retirement ObligationsMidAmerican Energy estimates its asset retirement obligation ("ARO") liabilities based upon detailed engineering calculations of the amount and timing of the future cash spending for a third party to perform the required work. Spending estimates are escalated for inflation and then discounted at a credit-adjusted, risk-free rate. Changes in estimates could occur for a number of reasons including changes in laws and regulations, plan revisions, inflation and changes in the amount and timing of expected work. During the six-month period ended June 30, 2023, MidAmerican Energy recorded an increase of $88 million for decommissioning its wind-generating facilities, which is a non-cash investing activity and is due to an updated decommissioning estimate reflecting changes in the projected removal costs per turbine.
MEC
Asset Retirement Obligations Disclosure [Line Items]
Asset Retirement Obligations	Asset Retirement ObligationsMidAmerican Energy estimates its asset retirement obligation ("ARO") liabilities based upon detailed engineering calculations of the amount and timing of the future cash spending for a third party to perform the required work. Spending estimates are escalated for inflation and then discounted at a credit-adjusted, risk-free rate. Changes in estimates could occur for a number of reasons including changes in laws and regulations, plan revisions, inflation and changes in the amount and timing of expected work. During the six-month period ended June 30, 2023, MidAmerican Energy recorded an increase of $88 million for decommissioning its wind-generating facilities, which is a non-cash investing activity and is due to an updated decommissioning estimate reflecting changes in the projected removal costs per turbine.
MidAmerican Funding, LLC
Asset Retirement Obligations Disclosure [Line Items]
Asset Retirement Obligations	Asset Retirement ObligationsRefer to Note 7 of MidAmerican Energy's Notes to Financial Statements.