v3.19.3.a.u2
PROPERTY (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
PROPERTY      
Property owned, gross $ 4,388.3 $ 4,608.9  
Less: accumulated depreciation 1,812.5 1,668.3  
Property owned, net 2,575.8 2,940.6  
Property leased under capital leases, gross 81.0 127.8  
Less: accumulated depreciation and amortization 7.6 28.8  
Property leased under capital leases, net 73.4 99.0  
Property including property leased under capital leases, net 2,649.2 3,039.6  
Depreciation expense 413.6 498.2 $ 495.2
Land      
PROPERTY      
Property owned, gross 106.3 104.6  
Buildings and improvements      
PROPERTY      
Property owned, gross $ 230.4 878.2  
Buildings and improvements | Minimum      
PROPERTY      
Estimated useful lives 5 years    
Buildings and improvements | Maximum      
PROPERTY      
Estimated useful lives 45 years    
Leasehold improvements      
PROPERTY      
Property owned, gross $ 1,834.8 1,560.7  
Leasehold improvements | Minimum      
PROPERTY      
Estimated useful lives 1 year    
Leasehold improvements | Maximum      
PROPERTY      
Estimated useful lives 20 years    
Furniture, fixtures and equipment      
PROPERTY      
Property owned, gross $ 2,216.8 $ 2,065.4  
Furniture, fixtures and equipment | Minimum      
PROPERTY      
Estimated useful lives 1 year    
Furniture, fixtures and equipment | Maximum      
PROPERTY      
Estimated useful lives 11 years