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DEBT - Revolving Credit Agreements (Details)
3 Months Ended
Mar. 31, 2023
USD ($)
Term Loan  
Line of Credit Facility [Line Items]  
Actual debt to capitalization percentage 41.10%
Revolving credit facility  
Line of Credit Facility [Line Items]  
Debt to capitalization percentage, maximum 60.00%
Outstanding borrowings $ 0
Uncommitted incremental loan facility 750,000,000
Revolving credit facility | 5-year unsecured revolving credit agreement  
Line of Credit Facility [Line Items]  
Remaining borrowing capacity $ 2,400,000,000
Debt instrument term (in years) 5 years
Revolving credit facility | 364-day unsecured revolving credit agreement  
Line of Credit Facility [Line Items]  
Remaining borrowing capacity $ 1,500,000,000
Debt instrument term (in years) 364 days
Letter of credit  
Line of Credit Facility [Line Items]  
Outstanding borrowings $ 39,000,000