Consolidated Statements of Changes in Member's Equity (Unaudited) - MidAmerican Funding LLC - USD ($) $ in Millions	Total	MidAmerican Funding, LLC	MidAmerican Funding, LLC Additional Paid-in Capital	MidAmerican Funding, LLC Retained Earnings
Balance at Dec. 31, 2022		$ 10,679	$ 1,679	$ 9,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 989	249		249
Distribution to member		(100)		(100)
Balance at Mar. 31, 2023		10,828	1,679	9,149
Balance at Dec. 31, 2023	48,434	10,633	1,679	8,954
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	653	235		235
Distribution to member		(425)		(425)
Balance at Mar. 31, 2024	$ 48,959	$ 10,443	$ 1,679	$ 8,764