Consolidated Statements of Changes in Member's Equity - MidAmerican Funding LLC - USD ($) $ in Millions	Total	Additional Paid-in Capital	Retained Earnings	MidAmerican Funding, LLC	MidAmerican Funding, LLC Additional Paid-in Capital	MidAmerican Funding, LLC Retained Earnings
Balance at Dec. 31, 2020				$ 8,919	$ 1,679	$ 7,240
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 5,790			883		883
Other equity transactions	(8)	$ (3)		(1)		(1)
Balance at Dec. 31, 2021				9,801	1,679	8,122
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	2,721			947		947
Distribution to member				(69)		(69)
Other equity transactions	(6)	$ 1	$ (12)
Balance at Dec. 31, 2022	46,832			10,679	1,679	9,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	3,020			980		980
Distribution to member				(1,025)		(1,025)
Other equity transactions	(9)			(1)		(1)
Balance at Dec. 31, 2023	$ 48,434			$ 10,633	$ 1,679	$ 8,954