Quarterly report pursuant to Section 13 or 15(d)

Debt - Narrative (Details)

v3.22.2
Debt - Narrative (Details)
£ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Mar. 31, 2022
USD ($)
Apr. 30, 2022
Jul. 31, 2021
GBP (£)
Oct. 31, 2017
USD ($)
Jun. 30, 2022
USD ($)
Jun. 30, 2021
USD ($)
Jun. 30, 2022
USD ($)
Jun. 30, 2022
GBP (£)
Jun. 30, 2021
USD ($)
May 31, 2022
GBP (£)
Jan. 31, 2022
Dec. 31, 2021
USD ($)
Jul. 31, 2021
USD ($)
Debt Instrument [Line Items]                          
Payments for foreign currency hedge | £     £ 509                    
Debt extinguishment         $ 13,000,000 $ 0 $ 16,000,000   $ (46,000,000)        
Construction loan payable         181,000,000   181,000,000         $ 184,000,000  
Debt repurchase program, authorized amount         1,000,000,000   1,000,000,000            
Debt repurchase program, amount available under the program         $ 1,000,000,000   $ 1,000,000,000            
Construction Loan Payable                          
Debt Instrument [Line Items]                          
Debt, face amount       $ 200,000,000                  
Extension term   1 year                      
Foreign Line of Credit                          
Debt Instrument [Line Items]                          
Credit facility, maximum borrowing capacity | £                   £ 250      
Proceeds from credit facility | £               £ 180          
Magellan Acquisition                          
Debt Instrument [Line Items]                          
Interest rate                     4.40%    
LIBOR | Construction Loan Payable | Maximum                          
Debt Instrument [Line Items]                          
Basis spread on variable rate       2.70%                  
LIBOR | Construction Loan Payable | Minimum                          
Debt Instrument [Line Items]                          
Basis spread on variable rate     2.00%                    
SOFR | Construction Loan Payable                          
Debt Instrument [Line Items]                          
Basis spread on variable rate   1.85%                      
Currency Swap                          
Debt Instrument [Line Items]                          
Derivative agreement                         $ 705,000,000
Proceeds from termination of interest rate swaps $ 35,000,000                        
Debt Total | Credit Availability Concentration Risk | LIBOR                          
Debt Instrument [Line Items]                          
Percentage of investments in rated securities carry an investment grade rating by nationally recognized statistical rating organizations             15.00% 15.00%