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Derivative Financial Instruments (Details 2) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]      
Realized net (loss) gains $ 39 $ 6 $ 29
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Cost of sales Cost of sales Cost of sales
Net derivative (losses) gains $ (100) $ (31) $ 88
Winter Storm Uri      
Derivative Instruments, Gain (Loss) [Line Items]      
Realized net (loss) gains 0 0 112
Derivatives not designated as cash flow hedges | Natural gas derivatives | Cost of Sales      
Derivative Instruments, Gain (Loss) [Line Items]      
Unrealized net gains (losses) 39 (41) (25)
Realized net (loss) gains $ (139) $ 10 $ 1