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Income Taxes - Reconciliation of Change in Unrecognized Tax Benefits (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Gross Unrecognized Tax Benefits      
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Beginning balance $ 65 $ 33 $ 41
Additions for tax positions related to the current year 12 12 2
Additions for tax positions related to prior years 63 28 10
Reductions for tax positions related to prior years due to IRS and other settlements (11) (8) (20)
Other reductions for tax positions related to prior years (10)    
Ending balance 119 65 33
Portion of balance that if recognized, would impact the effective income tax rate 107    
Accrued Interest and Penalties      
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Beginning balance 11 7 10
Additions for tax positions related to the current year 12 0 0
Additions for tax positions related to prior years 7 5 4
Reductions for tax positions related to prior years due to IRS and other settlements (3) (1) (7)
Other reductions for tax positions related to prior years (4)    
Ending balance 23 11 7
Portion of balance that if recognized, would impact the effective income tax rate 18    
Gross Tax, Interest and Penalties      
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Beginning balance 76 40 51
Additions for tax positions related to the current year 24 12 2
Additions for tax positions related to prior years 70 33 14
Reductions for tax positions related to prior years due to IRS and other settlements (14) (9) (27)
Other reductions for tax positions related to prior years (14)    
Ending balance 142 $ 76 $ 40
Portion of balance that if recognized, would impact the effective income tax rate $ 125