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Stockholders' Equity Accumulated Other Comprehensive Income (Loss) (Table) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance, beginning $ (422) $ (599) $ (923)
Other comprehensive income (loss) before reclassifications 509 221 390
Amortization of prior service cost (credit) [1] 14 15 18
Amortization of net actuarial loss (gain) [1] 5 2 32
Settlement gain (loss) [1]     (4)
Tax benefit (expense) for items of other comprehensive income (134) (61) (112)
Net current period other comprehensive income (loss) 394 177 324
Balance, ending (28) (422) (599)
Defined Benefit Plans      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance, beginning (422) (599) (923)
Other comprehensive income (loss) before reclassifications 509 221 390
Amortization of prior service cost (credit) [1] 14 15 18
Amortization of net actuarial loss (gain) [1] 5 2 32
Settlement gain (loss) [1]     (4)
Tax benefit (expense) for items of other comprehensive income (134) (61) (112)
Net current period other comprehensive income (loss) 394 177 324
Balance, ending (28) (422) (599)
Reclassification out of Accumulated Other Comprehensive Income [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Tax benefit (expense) for items of other comprehensive income $ (5) $ (4) $ (12)
[1] These accumulated comprehensive loss components are included in the computation of net periodic benefit cost. See Note 16: Employee Pension and Other Postretirement Benefits. The tax expense recorded in stockholders' equity for the amounts reclassified from accumulated other comprehensive loss for the years ended December 31, 2024, 2023, and 2022, was $5 million, $4 million, and $12 million, respectively.