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Fair Value of Financial Instruments - Balance Sheet Grouping (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion $ 7,237 $ 8,102
Fair Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion 6,715 7,611
Fair Value | Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion 1,922 1,939
Fair Value | Level 3    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion $ 4,793 $ 5,672