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Debt (Schedule of Revolving Credit Facility) (Details) - Revolving Credit Facility - USD ($)
$ in Millions
3 Months Ended
Mar. 18, 2022
Mar. 31, 2022
Dec. 31, 2021
Line of Credit Facility [Line Items]      
Revolving credit facility(2) [1]   $ 300 $ 200
Revolving Credit Facility      
Line of Credit Facility [Line Items]      
Revolving credit facility(2) [2]   300  
Available for borrowing [3]   1,450  
Proceeds from lines of credit $ 365 365  
Repayments of lines of credit   $ (65)  
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 1.7% and 1.4% as of March 31, 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 $65 million under its new senior unsecured revolving credit facility during the three months ended March 31, 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.