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Non-Derivative Fair Value Measurements - Carrying Value and Fair Value of Other Financial Instruments (Details) - USD ($)
$ in Millions
Sep. 30, 2023
Dec. 31, 2022
Carrying Value [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current maturities $ 6,481 $ 5,288
Fair Value [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current maturities 6,171 5,105
Level 2 | Fair Value [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current maturities 6,152 5,086
Level 2 | Fair Value [Member] | 2020, 2021, and 2022 Convertible Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current maturities $ 1,391 $ 1,510