Consolidated Statements of Capitalization - Capital Stock - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Beginning balance	$ 5,420	$ 4,792	$ 4,216
Net income	466	540	446
Separation of PGS equity from TEC	(992)
Equity contributions from Parent	300	605	580
Dividends to Parent	(472)	(517)	(450)
Other	1
Ending balance	4,723	5,420	4,792
Common Stock [Member]
Beginning balance	$ 5,075	$ 4,470	$ 3,890
Beginning balance	10	10	10
Separation of PGS equity from TEC	$ (871)
Equity contributions from Parent	300	$ 605	$ 580
Other	1
Ending balance	$ 4,505	$ 5,075	$ 4,470
Ending balance	10	10	10
Retained Earnings [Member]
Beginning balance	$ 346	$ 323	$ 327
Net income	466	540	446
Separation of PGS equity from TEC	(121)
Dividends to Parent	(472)	(517)	(450)
Ending balance	219	346	323
Accumulated Other Comprehensive Loss [Member]
Beginning balance	(1)	(1)	(1)
Ending balance	$ (1)	$ (1)	$ (1)