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)	$ 2,768	445		445
Balance at Jun. 30, 2022		10,246	1,679	8,567
Balance at Mar. 31, 2022		10,042	1,679	8,363
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	2,897	204		204
Balance at Jun. 30, 2022		10,246	1,679	8,567
Balance at Dec. 31, 2022	46,832	10,679	1,679	9,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	2,064	482		482
Distribution to member		(100)		(100)
Balance at Jun. 30, 2023	49,183	11,061	1,679	9,382
Balance at Mar. 31, 2023		10,828	1,679	9,149
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	1,075	233		233
Balance at Jun. 30, 2023	$ 49,183	$ 11,061	$ 1,679	$ 9,382