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Fair Value (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt principal $ 3,099 $ 3,099
Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term borrowings 165 330
Long-term debt 3,065 3,059
Carrying Amount | Related Party    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term notes receivable — related party 4 4
Carrying Amount | Recurring    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 36 0
Fair Value | Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term borrowings 0 0
Long-term debt 0 0
Fair Value | Level 1 | Related Party    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term notes receivable — related party 0 0
Fair Value | Level 1 | Recurring    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 0 0
Fair Value | Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term borrowings 165 330
Long-term debt 2,850 2,701
Fair Value | Level 2 | Related Party    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term notes receivable — related party 0 0
Fair Value | Level 2 | Recurring    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 36 0
Fair Value | Level 3    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term borrowings 0 0
Long-term debt 0 0
Fair Value | Level 3 | Related Party    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term notes receivable — related party 4 4
Fair Value | Level 3 | Recurring    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents $ 0 $ 0