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Fair Value Measurements (Details) - Fair Value, Recurring - USD ($)
$ in Millions
Jun. 30, 2023
Dec. 31, 2022
Fair value of assets and liabilities    
Marketable Securities $ 4 $ 3
Derivative assets 30 60
Derivative liabilities 118 64
Long-term debt 1,752 1,733
Level 1    
Fair value of assets and liabilities    
Marketable Securities 4 3
Derivative assets 29 49
Derivative liabilities 86 51
Long-term debt 0 0
Level 2    
Fair value of assets and liabilities    
Marketable Securities 0 0
Derivative assets 1 11
Derivative liabilities 32 13
Long-term debt 1,752 1,733
Level 3    
Fair value of assets and liabilities    
Marketable Securities 0 0
Derivative assets 0 0
Derivative liabilities 0 0
Long-term debt $ 0 $ 0