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Consolidated Condensed Statements of Comprehensive Income - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Statement of Comprehensive Income [Abstract]    
Net income $ 945 $ 888
Other comprehensive income (loss) items:    
Gains (losses) on derivatives (3) 9
Pension and postretirement losses (3) (4)
Other (3) 0
Other comprehensive income (loss), net of tax (9) 5
Comprehensive income 936 893
Less: Comprehensive income attributable to noncontrolling interest (9) 0
Comprehensive income attributable to preferred and common stockholders $ 927 $ 893