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NOTES PAYABLE - DIRECT CORPORATE OBLIGATIONS - NARRATIVE (Details) - USD ($)
1 Months Ended
Jun. 12, 2019
May 19, 2015
Nov. 30, 2020
Dec. 31, 2022
Subordinated Debt | Prior to November 25, 2025        
Debt Instrument [Line Items]        
Redemption price, percent     102.00%  
5.125% Subordinated Debentures due 2060 | Subordinated Debt        
Debt Instrument [Line Items]        
Amount issued     $ 150,000,000  
Interest rate     5.125% 5.125%
5.125% Subordinated Debentures due 2060 | Subordinated Debt | On or After November 25, 2025        
Debt Instrument [Line Items]        
Amount issued     $ 25,000,000  
5.250% Senior Notes due May 2029 | Senior Notes        
Debt Instrument [Line Items]        
Amount issued $ 500,000,000      
Interest rate 5.25%     5.25%
Debt default, percentage of principal amount outstanding 50.00%      
5.250% Senior Notes due May 2029 | Senior Notes | On and After February 28, 2029        
Debt Instrument [Line Items]        
Redemption price, percent 100.00%      
5.250% Senior Notes due May 2029 | Senior Notes | Change of Control Repurchase Event        
Debt Instrument [Line Items]        
Redemption price, percent 101.00%      
4.500% Senior Notes due May 2020 | Senior Notes        
Debt Instrument [Line Items]        
Amount issued   $ 325,000,000    
Interest rate   4.50%    
5.250% Senior Notes due May 2025 | Senior Notes        
Debt Instrument [Line Items]        
Amount issued   $ 500,000,000    
Interest rate   5.25%   5.25%
Debt default, percentage of principal amount outstanding   25.00%    
5.250% Senior Notes due May 2025 | Senior Notes | Change of Control Repurchase Event        
Debt Instrument [Line Items]        
Redemption price, percent   101.00%    
5.250% Senior Notes due May 2025 | Senior Notes | On and After February 28, 2025        
Debt Instrument [Line Items]        
Redemption price, percent   100.00%