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Debt (Schedule of Revolving Credit Facility) (Details) - Revolving Credit Facility - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 18, 2022
Mar. 31, 2022
Jun. 30, 2022
Dec. 31, 2021
Line of Credit Facility [Line Items]        
Revolving credit facility(2) [1]     $ 245 $ 200
Revolving Credit Facility        
Line of Credit Facility [Line Items]        
Revolving credit facility(2) [2]     245  
Available for borrowing [3]     1,505  
Proceeds from lines of credit $ 365   365  
Repayments of lines of credit     $ (120)  
Revolving Credit Facility | Minimum | Variable Interbank Interest Rate        
Line of Credit Facility [Line Items]        
Debt instrument, basis spread on variable rate     1.00%  
Revolving Credit Facility | Maximum | Variable Interbank Interest Rate        
Line of Credit Facility [Line Items]        
Debt instrument, basis spread on variable rate     2.00%  
Senior Unsecured Revolving Credit Facility        
Line of Credit Facility [Line Items]        
Proceeds from lines of credit   $ 165    
Repayments of lines of credit $ (365) $ (365)    
[1] The weighted average interest rate was 3.0% and 1.4% as of June 30, 2022 and December 31, 2021, respectively.
[2] The Company borrowed $365 million under its new senior unsecured revolving credit facility to repay and terminate its previous unsecured revolving credit facility and repaid $120 million under its new senior unsecured revolving credit facility during the six months ended June 30, 2022. The Company borrowed $165 million and repaid $365 million under its previous unsecured revolving credit facility during the three months ended March 31, 2022.
[3] The margin for borrowings under the senior unsecured revolving credit facility was 1.00% to 2.00% above certain interbank rates at current Company credit ratings.