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Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Net deferred gains (losses) on derivatives-hedging activities, tax $ 3 $ (6) $ 0 $ (5)
Changes in unrealized net gains (losses) on investment securities, tax (10) 6 (2) 2
Changes in net unrecognized pension and other postretirement benefit costs, tax (2) 0 86 0
Net derivative (gains) losses-hedging activities, tax (3) (3) (9) (8)
Net realized (gains) losses on investment securities, tax 1 0 (1) 0
Net pension and other postretirement benefit costs (credits), tax 1 7 (20) 15
Net equity method investees, tax 0 (1) 0 (1)
Changes in other comprehensive income from equity method investees, tax 0 0 0 0
Virginia Electric and Power Company        
Net deferred gains (losses) on derivatives-hedging activities, tax 3 (7) 0 (6)
Changes in unrealized net gains (losses) on investment securities, tax (2) 0 (1) 0
Net realized (gains) losses on investment securities, tax $ (1) $ 0 $ (1) $ 0