v3.25.2
Stockholders' Equity Accumulated Other Comprehensive Income (Loss) (Table) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance, beginning $ (27) $ (419) $ (28) $ (422)
Amortization of prior service cost (credit) [1] 4 4 8 7
Amortization of net actuarial loss (gain) [1] (3)   (6) 2
Tax benefit (expense) for items of other comprehensive income       (2)
Other comprehensive income (loss), net of tax 1 4 2 7
Balance, ending (26) (415) (26) (415)
Reclassification out of AOCI        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Tax benefit (expense) for items of other comprehensive income       (2)
Maximum | Reclassification out of AOCI        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Tax benefit (expense) for items of other comprehensive income (1) (1) (1)  
Benefit Plans        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance, beginning (27) (419) (28) (422)
Amortization of prior service cost (credit) [1] 4 4 8 7
Amortization of net actuarial loss (gain) [1] (3)   (6) 2
Tax benefit (expense) for items of other comprehensive income       (2)
Other comprehensive income (loss), net of tax 1 4 2 7
Balance, ending $ (26) $ (415) $ (26) $ (415)
[1] These accumulated comprehensive loss components are included in the computation of net periodic benefit cost. See Note 12: Employee Pension and Other Postretirement Benefits. The tax expense recorded in stockholders' equity for the amounts reclassified from accumulated other comprehensive loss for each of the three months ended June 30, 2025 and 2024, was less than $1 million. The tax expense recorded in stockholders' equity for the amounts reclassified from accumulated other comprehensive loss for the six months ended June 30, 2025 and 2024, was less than $1 million and $2 million, respectively.