Consolidated Statements of Changes in Member's Equity (Unaudited) - 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)	$ 2,285			355		355
Other equity transactions	(1)			(1)		(1)
Balance at Jun. 30, 2021				9,273	1,679	7,594
Balance at Mar. 31, 2021				9,063	1,679	7,384
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	2,281			211		211
Other equity transactions	(4)		$ (1)	(1)		(1)
Balance at Jun. 30, 2021				9,273	1,679	7,594
Balance at Dec. 31, 2021	46,694			9,801	1,679	8,122
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	2,768			445		445
Other equity transactions	(5)	$ 1	(12)
Balance at Jun. 30, 2022	47,304			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
Other equity transactions	(10)	$ 1	$ (11)
Balance at Jun. 30, 2022	$ 47,304			$ 10,246	$ 1,679	$ 8,567