Consolidated Condensed Statements of Capitalization (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Beginning balance	$ 4,670	$ 5,133	$ 5,420	$ 4,792
Net income	170	169	381	432
Separation of PGS equity from TEC			(992)
Equity contributions from Parent	100	190	300	470
Dividends to Parent	(132)	(146)	(302)	(348)
Other			1
Ending balance	4,808	5,346	4,808	5,346
Common Stock [Member]
Beginning balance	$ 4,405	$ 4,750	$ 5,075	$ 4,470
Beginning balance	10	10	10	10
Separation of PGS equity from TEC			$ (871)
Equity contributions from Parent	$ 100	$ 190	300	$ 470
Other			1
Ending balance	$ 4,505	$ 4,940	$ 4,505	$ 4,940
Ending balance	10	10	10	10
Retained Earnings [Member]
Beginning balance	$ 266	$ 384	$ 346	$ 323
Net income	170	169	381	432
Separation of PGS equity from TEC			(121)
Dividends to Parent	(132)	(146)	(302)	(348)
Ending balance	304	407	304	407
Accumulated Other Comprehensive Loss [Member]
Beginning balance	(1)	(1)	(1)	(1)
Ending balance	$ (1)	$ (1)	$ (1)	$ (1)