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, 2021		$ 9,801	$ 1,679	$ 8,122
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ (129)	241		241
Balance at Mar. 31, 2022		10,042	1,679	8,363
Balance at Dec. 31, 2022	46,832	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	$ 47,853	$ 10,828	$ 1,679	$ 9,149