XML 96 R82.htm IDEA: XBRL DOCUMENT v3.22.1
Borrowings - Senior Notes (Details) - USD ($)
1 Months Ended 3 Months Ended
Nov. 30, 2021
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Oct. 22, 2021
Sep. 30, 2019
Sep. 30, 2018
Mar. 31, 2014
Mar. 31, 2013
Jan. 31, 2013
Debt Instrument [Line Items]                    
Interest Expense   $ 17,200,000 $ 19,700,000              
3.875% Senior Notes Due 2/01/2023                    
Debt Instrument [Line Items]                    
Interest rate (percent)   3.875%                
5.625% Senior Notes Due 3/30/2043                    
Debt Instrument [Line Items]                    
Interest rate (percent)   5.625%                
5.650% Senior Notes Due 9/15/2048                    
Debt Instrument [Line Items]                    
Interest rate (percent)   5.65%                
3.500% Senior Notes Due 9/19/2029                    
Debt Instrument [Line Items]                    
Interest rate (percent)   3.50%                
Senior Notes                    
Debt Instrument [Line Items]                    
Interest Expense $ 10,100,000                  
Senior Notes | 3.875% Senior Notes Due 2/01/2023                    
Debt Instrument [Line Items]                    
Interest rate (percent)   3.875%                
Aggregate Principal Amount   $ 0     $ 250,000,000          
Fair Value   0   $ 0            
Interest Expense   0 2,500,000              
Senior notes percentage of par value (percent)                   99.966%
Senior Notes | 5.625% Senior Notes Due 3/30/2043                    
Debt Instrument [Line Items]                    
Aggregate Principal Amount   600,000,000.0           $ 200,000,000 $ 400,000,000  
Fair Value   671,200,000   795,500,000            
Interest Expense   8,400,000 8,400,000              
Senior notes percentage of par value (percent)               104.315% 99.583%  
Senior Notes | 5.650% Senior Notes Due 9/15/2048                    
Debt Instrument [Line Items]                    
Aggregate Principal Amount   350,000,000.0                
Fair Value   408,700,000   484,700,000            
Interest Expense   $ 5,000,000.0 5,000,000.0              
Senior notes percentage of par value (percent)             99.914%      
Senior Notes | 3.500% Senior Notes Due 9/19/2029                    
Debt Instrument [Line Items]                    
Interest rate (percent)   3.50%                
Aggregate Principal Amount   $ 425,000,000.0                
Fair Value   418,700,000   $ 457,400,000            
Interest Expense   $ 3,800,000 $ 3,800,000              
Senior notes percentage of par value (percent)           99.841%