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Subsequent Events (Details) - Letter of Credit - USD ($)
$ in Millions
Oct. 26, 2023
Sep. 30, 2023
Letter of Credit    
Subsequent Event [Line Items]    
Maximum borrowing capacity   $ 350
CF Industries | Revolving Credit Facility | Subsequent Event    
Subsequent Event [Line Items]    
Maximum borrowing capacity $ 750  
CF Industries | Letter of Credit | Subsequent Event    
Subsequent Event [Line Items]    
Maximum borrowing capacity $ 125