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Borrowings - Narrative (Details) - USD ($)
9 Months Ended
Apr. 06, 2023
Apr. 05, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Line of Credit Facility [Line Items]            
Interest coverage ratio     13.8      
Outstanding letters of credit     $ 182,500,000      
Revolving Credit Facility | Credit Agreement            
Line of Credit Facility [Line Items]            
Maximum borrowing capacity $ 1,000,000,000 $ 1,000,000,000        
Term of debt 5 years 5 years        
Interest coverage ratio required     300.00%      
Borrowings under credit facility     $ 0     $ 0
Revolving Credit Facility | Credit Facility Maturing April 2024            
Line of Credit Facility [Line Items]            
Maximum borrowing capacity $ 500,000,000          
Term of debt 364 days          
Option to extend maturity date, period of extension. 364 days          
Commercial paper            
Line of Credit Facility [Line Items]            
Increase (decrease) in borrowings     $ (528,636,000)      
Weighted average interest rate     5.44%     4.61%
Principal       $ 1,500,000,000 $ 1,000,000,000