v3.26.1
Derivatives (Classification of Gross Fair Values of Derivative Instruments, Excluding Cash Collateral) (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Other Noncurrent Liabilities [Member] | Nonrelated Party [Member]    
Derivative [Line Items]    
Embedded Derivative, Fair Value of Embedded Derivative Liability [1] $ 43 $ 35
Other Current Liabilities [Member] | Nonrelated Party [Member]    
Derivative [Line Items]    
Embedded Derivative, Fair Value of Embedded Derivative Liability [1] 11 6
Commodity Contract [Member] | Other Current Liabilities [Member] | Related Party [Member]    
Derivative [Line Items]    
Other Derivatives Not Designated as Hedging Instruments Liabilities at Fair Value $ 51 $ 0
[1] Includes embedded derivatives.