Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions		Total	Total Common Stockholders' Equity	Common Stock	OPIC	AOCI	Accumulated Deficit	NCI
Beginning Balance (in shares) at Dec. 31, 2019				541,000,000
Beginning Balance at Dec. 31, 2019		$ 6,975	$ 6,975	$ 54	$ 10,868	$ 20	$ (3,967)	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
NET INCOME		1,079	1,079				1,079
Other comprehensive loss, net of tax		(25)	(25)			(25)
Cash dividends declared on common stock	[1]	(846)	(846)		(846)
Stock Investment Plan and share-based benefit plans (in shares)				2,000,000
Stock Investment Plan and share-based benefit plans		54	54		54
Ending Balance (in shares) at Dec. 31, 2020				543,000,000
Ending Balance at Dec. 31, 2020		7,237	7,237	$ 54	10,076	(5)	(2,888)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
NET INCOME		1,283	1,283				1,283
Other comprehensive loss, net of tax		(10)	(10)			(10)
Cash dividends declared on common stock	[1]	(859)	(859)		(859)
Common Stock issuance (Note 10) (in shares)				26,000,000
Common stock issuance (Note 10)		974	974	$ 3	971
Stock Investment Plan and share-based benefit plans (in shares)				1,000,000
Stock Investment Plan and share-based benefit plans		$ 50	50		50
Ending Balance (in shares) at Dec. 31, 2021		570,261,104		570,000,000
Ending Balance at Dec. 31, 2021		$ 8,675	8,675	$ 57	10,238	(15)	(1,605)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
NET INCOME		439	406				406	33
Other comprehensive loss, net of tax		1	1			1
Cash dividends declared on common stock	[1]	(892)	(892)		(892)
Stock Investment Plan and share-based benefit plans (in shares)				2,000,000
Stock Investment Plan and share-based benefit plans		98	98		98
FET minority interest sale, net of transaction costs (Note 1)		2,338	1,887		1,887			451
Distribution to FET minority interest		(21)						(21)
Capital contribution from FET minority interest		9						9
Consolidated tax benefit allocation		0	(5)		(5)			5
Other		$ (4)	(4)		(4)
Ending Balance (in shares) at Dec. 31, 2022		572,130,932		572,000,000
Ending Balance at Dec. 31, 2022		$ 10,643	$ 10,166	$ 57	$ 11,322	$ (14)	$ (1,199)	$ 477

[1] Dividends declared for each share of common stock were $1.56 during 2022, 2021 and 2020.