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Long-Term Debt - CEI Senior Secured Notes due 2025 (Details) - USD ($)
$ in Billions
Sep. 30, 2022
Jul. 06, 2020
Long-term debt    
Interest rate 4.30%  
CEI Senior Secured Notes | Senior Notes    
Long-term debt    
Long-term debt, gross   $ 3.4
Interest rate 6.25% 6.25%