Consolidated Statement of Capitalization - USD ($) shares in Millions, $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Regulated Operations [Abstract]
TOTAL EQUITY BEFORE ACCUMULATED OTHER COMPREHENSIVE LOSS (in shares)	345	355
TOTAL EQUITY BEFORE ACCUMULATED OTHER COMPREHENSIVE INCOME	$ 21,136	$ 20,665
Pension plan liability adjustments, net of taxes	23	23
Unrealized losses on derivatives qualified as cash flow hedges, less reclassification adjustment for gains/(losses) included in net income and reclassification adjustment for unrealized losses included in regulatory assets, net of taxes	(1)	(1)
TOTAL ACCUMULATED OTHER COMPREHENSIVE INCOME, NET OF TAXES	22	22
Equity	21,158	20,687
Noncontrolling interest	0	202
TOTAL EQUITY (See Statement of Equity)	$ 21,158	$ 20,889	$ 20,336	$ 19,065