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Debt - 2030 Notes and 2049 Notes Issued in 2020 (Details) - USD ($)
1 Months Ended 12 Months Ended
Oct. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Debt Instrument [Line Items]        
Long-term debt, gross   $ 2,600,000,000 $ 2,320,300,000  
Loss on extinguishment of debt $ (400,000) 24,600,000 21,100,000 $ 10,600,000
Payments of related issuance costs $ 2,800,000 9,900,000 7,000,000.0 6,500,000
Senior Notes        
Debt Instrument [Line Items]        
Proceeds from offering   698,700,000 669,100,000 693,300,000
Loss on extinguishment of debt       10,600,000
Payments of related issuance costs   $ 7,100,000 6,000,000 $ 6,500,000
2030 Notes | Senior Notes        
Debt Instrument [Line Items]        
Aggregate principal amount     $ 350,000,000  
Stated interest rate   3.50% 3.50%  
Stated coupon rate     99.774%  
Yield to maturity   3.525% 3.525%  
Long-term debt, gross   $ 350,000,000.0 $ 350,000,000.0  
2030 Notes | Senior Notes | Prior to February 28, 2030        
Debt Instrument [Line Items]        
Stated coupon rate     100.00%  
2030 Notes | Senior Notes | On or after February 28, 2030        
Debt Instrument [Line Items]        
Stated coupon rate     100.00%  
2030 Notes | Senior Notes | On or after February 28, 2030 | Minimum        
Debt Instrument [Line Items]        
Redemption price, notice period     15 days  
2030 Notes | Senior Notes | On or after February 28, 2030 | Maximum        
Debt Instrument [Line Items]        
Redemption price, notice period     60 days  
2049 Senior Notes | Senior Notes        
Debt Instrument [Line Items]        
Aggregate principal amount     $ 300,000,000  
Stated interest rate     5.25%  
Stated coupon rate     106.626%  
Yield to maturity     4.821%  
2049 Senior Notes | Senior Notes | Prior to November 15, 2048        
Debt Instrument [Line Items]        
Stated coupon rate     100.00%  
2049 Senior Notes | Senior Notes | On or after November 15, 2048        
Debt Instrument [Line Items]        
Stated coupon rate     100.00%  
2049 Senior Notes | Senior Notes | On or after November 15, 2048 | Minimum        
Debt Instrument [Line Items]        
Redemption price, notice period     15 days  
2049 Senior Notes | Senior Notes | On or after November 15, 2048 | Maximum        
Debt Instrument [Line Items]        
Redemption price, notice period     60 days  
2025 Notes | Senior Notes        
Debt Instrument [Line Items]        
Stated coupon rate     102.625%  
Long-term debt, gross     $ 650,000,000  
Loss on extinguishment of debt     $ 21,100,000