Condensed Statements of Capitalization (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Beginning balance	$ 5,194	$ 4,670	$ 4,723	$ 5,420
Net income	185	170	384	381
Separation of PGS equity from TEC				(992)
Equity contributions from Parent	135	100	555	300
Dividends to Parent	(136)	(132)	(284)	(302)
Other				1
Ending balance	5,378	4,808	5,378	4,808
Common Stock [Member]
Beginning balance	$ 4,925	$ 4,405	$ 4,505	$ 5,075
Beginning balance	10	10	10	10
Separation of PGS equity from TEC				$ (871)
Equity contributions from Parent	$ 135	$ 100	$ 555	300
Other				1
Ending balance	$ 5,060	$ 4,505	$ 5,060	$ 4,505
Ending balance	10	10	10	10
Retained Earnings [Member]
Beginning balance	$ 270	$ 266	$ 219	$ 346
Net income	185	170	384	381
Separation of PGS equity from TEC				(121)
Dividends to Parent	(136)	(132)	(284)	(302)
Ending balance	319	304	319	304
Accumulated Other Comprehensive Loss [Member]
Beginning balance	(1)	(1)	(1)	(1)
Ending balance	$ (1)	$ (1)	$ (1)	$ (1)