Asset Retirement Obligations	3 Months Ended
	Mar. 31, 2023
Asset Retirement Obligations Disclosure [Line Items]
Asset Retirement Obligations	Asset Retirement Obligations MidAmerican 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 three-month period ended March 31, 2023, MidAmerican Energy recorded an increase of $88 million for decommissioning its wind-generating facilities 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 three-month period ended March 31, 2023, MidAmerican Energy recorded an increase of $88 million for decommissioning its wind-generating facilities 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 6 of MidAmerican Energy's Notes to Financial Statements.