Consolidated Condensed Statements of Capital (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Beginning balance	$ 5,420	$ 4,792
Net income	79	118
Separation of PGS equity from TEC	(992)
Equity contributions from Parent	100	175
Dividends to Parent	(91)	(85)
Other	1
Ending balance	4,517	5,000
Common Stock [Member]
Beginning balance	$ 5,075	$ 4,470
Beginning balance	10	10
Separation of PGS equity from TEC	$ (871)
Equity contributions from Parent	100	$ 175
Other	1
Ending balance	$ 4,305	$ 4,645
Ending balance	10	10
Retained Earnings [Member]
Beginning balance	$ 346	$ 323
Net income	79	118
Separation of PGS equity from TEC	(121)
Dividends to Parent	(91)	(85)
Ending balance	213	356
Accumulated Other Comprehensive Loss [Member]
Beginning balance	(1)	(1)
Ending balance	$ (1)	$ (1)