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Leases (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Sep. 11, 2020
Option to extend - Operating true  
Option to extend - Finance true  
Option to terminate period - Operating 1 year  
Option to terminate period - Finance 1 year  
Option to terminate - Operating true  
Option to terminate - Finance true  
Annual Lease payment   $ 56
Minimum    
Option to extend period - Operating 1 year  
Option to extend period - Finance 1 year  
Maximum    
Option to extend period - Operating 16 years  
Option to extend period - Finance 16 years