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Debt - Additional Information (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 9 Months Ended
Feb. 29, 2020
Sep. 30, 2023
Sep. 30, 2023
Sep. 30, 2022
Debt Instrument [Line Items]        
Quarterly unreimbursed letters of credit minimum percentage 35.00%      
Principal payment     $ 113 $ 19
Outstanding borrowings under revolving facility   $ 0 0  
Letters of credit outstanding   6 $ 6  
Debt instrument, maturity period     Feb. 28, 2025  
Term loan facility        
Debt Instrument [Line Items]        
Debt instrument, periodic payment     $ 6  
Principal payment   $ 100    
Debt instrument, maturity period     Feb. 28, 2027  
External Debt Facilities | Base Rate        
Debt Instrument [Line Items]        
Debt instrument, interest rate 0.75%      
External Debt Facilities | Secured Overnight Financing Rate (SOFR)        
Debt Instrument [Line Items]        
Debt instrument, interest rate 1.75%      
External Debt Facilities | Term loan facility        
Debt Instrument [Line Items]        
Debt instrument, maximum borrowing capacity $ 2,475      
External Debt Facilities | Revolving Credit Facility        
Debt Instrument [Line Items]        
Debt instrument, maximum borrowing capacity $ 250