v3.26.1
Derivative and Financial Instruments - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Derivative [Line Items]          
Proceeds from sales and redemptions of investments in debt securities classified as available for sale $ 269 $ 300 $ 478 $ 511  
Derivative, net liability position, aggregate fair value 78   78   $ 73
Collateral already posted, aggregate fair value 0   0   $ 0
In event of downgrade below investment grade          
Derivative [Line Items]          
Additional collateral, aggregate fair value $ 39   $ 39    
Maximum          
Derivative [Line Items]          
Investments and long-term receivables, remaining maturity     12 years    
Minimum          
Derivative [Line Items]          
Investments and long-term receivables, remaining maturity     1 year