v3.25.1
Long-Term Debt - CEI Term Loans and CEI Revolving Credit Facility (Narrative) (Details)
1 Months Ended
Feb. 06, 2024
USD ($)
Feb. 06, 2023
USD ($)
Oct. 05, 2022
USD ($)
stepdown
Nov. 30, 2024
Mar. 31, 2025
USD ($)
Jul. 20, 2020
USD ($)
Long-term debt            
Interest rate         4.30%  
Senior Notes | CEI Term Loan B            
Long-term debt            
Debt instrument, face amount   $ 2,500,000,000        
Percentage of original principal amount amortization   0.25%        
Senior Notes | CEI Term Loan B | SOFR | Component One | Minimum            
Long-term debt            
Spread on variable rate   0.50%        
Senior Notes | CEI Term Loan B | Base rate            
Long-term debt            
Spread on variable rate   1.25%        
Senior Notes | CEI Term Loan B | Applicable Margin            
Long-term debt            
Spread on variable rate   2.25%        
Senior Notes | CEI Term Loan B-1            
Long-term debt            
Debt instrument, face amount $ 2,900,000,000          
Percentage of original principal amount amortization 0.25%          
Senior Notes | CEI Term Loan B-1 | SOFR | Component One | Minimum            
Long-term debt            
Spread on variable rate       0.50%    
Senior Notes | CEI Term Loan B-1 | Base rate            
Long-term debt            
Spread on variable rate 1.25%          
Senior Notes | CEI Term Loan B-1 | Applicable Margin            
Long-term debt            
Spread on variable rate       2.25%    
CEI Revolving Credit Facility            
Long-term debt            
Number of stepdowns | stepdown     3      
Leverage ratio stepdown     0.05%      
Line of credit facility, commitment fee percentage     0.35%      
Available borrowing capacity         $ 2,100,000,000  
CEI Revolving Credit Facility | Line of Credit            
Long-term debt            
Credit facility           $ 2,250,000,000
Amount outstanding         79,000,000  
CEI Revolving Credit Facility, Permitted Use Reserves            
Long-term debt            
Accordion feature           40,000,000
CEI Revolving Credit Facility, Regulatory Purpose            
Long-term debt            
Amount outstanding         $ 46,000,000  
Line of Credit | CEI Revolving Credit Facility and CEI Term Loan A | SOFR            
Long-term debt            
Spread on variable rate     2.25%      
Line of Credit | CEI Revolving Credit Facility and CEI Term Loan A | SOFR | Component One            
Long-term debt            
Spread on variable rate     0.10%      
Line of Credit | CEI Revolving Credit Facility and CEI Term Loan A | SOFR | Component One | Minimum            
Long-term debt            
Spread on variable rate     0.00%      
Line of Credit | CEI Revolving Credit Facility and CEI Term Loan A | SOFR | Component Two            
Long-term debt            
Spread on variable rate     1.00%      
Line of Credit | CEI Revolving Credit Facility and CEI Term Loan A | Fed Funds Effective Rate Overnight Index Swap Rate | Component Two            
Long-term debt            
Spread on variable rate     0.50%      
Line of Credit | CEI Revolving Credit Facility and CEI Term Loan A | Base rate            
Long-term debt            
Spread on variable rate     1.25%      
Line of Credit | Letter of Credit            
Long-term debt            
Credit facility           $ 388,000,000
Line of Credit | Secured Debt | CEI Revolving Credit Facility and CEI Term Loan A            
Long-term debt            
Number of stepdowns | stepdown     3      
Leverage ratio stepdown     0.25%      
Line of Credit | Secured Debt | CEI Term Loan A            
Long-term debt            
Debt instrument, face amount     $ 750,000,000      
Interest rate     1.25%