CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - USD ($) shares in Millions, $ in Millions	Total	Total Shareholders' Equity	Preferred Stock	Common Stock	APIC	AOCI	Retained Earnings	NCI
Beginning balance (in shares) at Dec. 31, 2020			0	141
Beginning balance at Dec. 31, 2020	$ 1,263	$ 1,030	$ 0	$ 1	$ 196	$ (417)	$ 1,250	$ 233
Increase (Decrease) in Shareholders' Equity
Net earnings (loss) from Cont Ops	(401)	(440)					(440)	39
OCI	52	51				51		1
Issuance of CPS (in shares)			1
Issuance of CPS	582	582			582
Dividends on CPS	(19)	(19)					(19)
Capital contributions by NCI, net of distributions	93							93
Other NCI transactions	(31)	161			161			(192)
Stock-based plan activity	28	28			28
Ending balance (in shares) at Dec. 31, 2021			1	141
Ending balance at Dec. 31, 2021	1,567	1,393	$ 0	$ 1	967	(366)	791	174
Increase (Decrease) in Shareholders' Equity
Net earnings (loss) from Cont Ops	73	145					145	(72)
OCI	2	1				1		1
Dividends on CPS	(39)	(39)					(39)
Capital contributions by NCI, net of distributions	(39)							(39)
NuScale reverse recapitalization	292	147			147			145
Sale of NuScale units to NCI	107	107			107
Other NCI transactions	21	20			20			1
Stock-based plan activity (in shares)				1
Stock-based plan activity	12	12			13		(1)
Ending balance (in shares) at Dec. 31, 2022			1	142
Ending balance at Dec. 31, 2022	1,996	1,786	$ 0	$ 1	1,254	(365)	896	210
Increase (Decrease) in Shareholders' Equity
Net earnings (loss) from Cont Ops	79	139					139	(60)
OCI	94	96				96		(2)
Dividends on CPS	(29)	(29)					(29)
Conversion of CPS to common stock (including make-whole payment) (in shares)			(1)	27
Conversion of CPS to common stock (including make-whole payment)	(26)	(26)		$ 1			(27)
Capped call transactions related to 2029 Notes	(73)	(73)			(73)
Distributions to NCI, net of contributions	(43)							(43)
Other NCI transactions	21	14			14			7
Stock-based plan activity (in shares)				1
Stock-based plan activity	33	33			33
Ending balance (in shares) at Dec. 31, 2023			0	170
Ending balance at Dec. 31, 2023	$ 2,052	$ 1,940	$ 0	$ 2	$ 1,228	$ (269)	$ 979	$ 112